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54
admin/phpMyAdmin/libraries/classes/Gis/GisFactory.php
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54
admin/phpMyAdmin/libraries/classes/Gis/GisFactory.php
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<?php
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/**
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* Contains the factory class that handles the creation of geometric objects
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*/
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declare(strict_types=1);
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namespace PhpMyAdmin\Gis;
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use function strtoupper;
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/**
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* Factory class that handles the creation of geometric objects.
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*/
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class GisFactory
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{
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/**
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* Returns the singleton instance of geometric class of the given type.
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*
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* @param string $type type of the geometric object
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*
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* @return GisGeometry|false the singleton instance of geometric class of the given type
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*
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* @static
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*/
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public static function factory($type)
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{
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switch (strtoupper($type)) {
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case 'MULTIPOLYGON':
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return GisMultiPolygon::singleton();
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case 'POLYGON':
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return GisPolygon::singleton();
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case 'MULTIPOINT':
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return GisMultiPoint::singleton();
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case 'POINT':
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return GisPoint::singleton();
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case 'MULTILINESTRING':
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return GisMultiLineString::singleton();
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case 'LINESTRING':
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return GisLineString::singleton();
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case 'GEOMETRYCOLLECTION':
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return GisGeometryCollection::singleton();
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default:
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return false;
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}
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}
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}
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382
admin/phpMyAdmin/libraries/classes/Gis/GisGeometry.php
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382
admin/phpMyAdmin/libraries/classes/Gis/GisGeometry.php
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<?php
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/**
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* Base class for all GIS data type classes
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*/
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declare(strict_types=1);
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namespace PhpMyAdmin\Gis;
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use PhpMyAdmin\Image\ImageWrapper;
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use TCPDF;
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use function explode;
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use function floatval;
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use function mb_strripos;
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use function mb_substr;
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use function mt_getrandmax;
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use function preg_match;
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use function random_int;
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use function sprintf;
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use function str_replace;
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use function trim;
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/**
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* Base class for all GIS data type classes.
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*/
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abstract class GisGeometry
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{
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/**
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* Prepares and returns the code related to a row in the GIS dataset as SVG.
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*
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* @param string $spatial GIS data object
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* @param string $label label for the GIS data object
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* @param string $color color for the GIS data object
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* @param array $scale_data data related to scaling
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*
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* @return string the code related to a row in the GIS dataset
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*/
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abstract public function prepareRowAsSvg($spatial, $label, $color, array $scale_data);
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/**
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* Adds to the PNG image object, the data related to a row in the GIS dataset.
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*
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* @param string $spatial GIS POLYGON object
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* @param string|null $label Label for the GIS POLYGON object
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* @param string $color Color for the GIS POLYGON object
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* @param array $scale_data Array containing data related to scaling
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*/
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abstract public function prepareRowAsPng(
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$spatial,
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?string $label,
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$color,
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array $scale_data,
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ImageWrapper $image
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): ImageWrapper;
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/**
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* Adds to the TCPDF instance, the data related to a row in the GIS dataset.
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*
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* @param string $spatial GIS data object
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* @param string|null $label label for the GIS data object
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* @param string $color color for the GIS data object
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* @param array $scale_data array containing data related to scaling
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* @param TCPDF $pdf TCPDF instance
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*
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* @return TCPDF the modified TCPDF instance
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*/
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abstract public function prepareRowAsPdf(
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$spatial,
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?string $label,
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$color,
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array $scale_data,
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$pdf
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);
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/**
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* Prepares the JavaScript related to a row in the GIS dataset
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* to visualize it with OpenLayers.
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*
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* @param string $spatial GIS data object
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* @param int $srid spatial reference ID
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* @param string $label label for the GIS data object
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* @param array $color color for the GIS data object
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* @param array $scale_data array containing data related to scaling
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*
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* @return string the JavaScript related to a row in the GIS dataset
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*/
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abstract public function prepareRowAsOl(
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$spatial,
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int $srid,
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$label,
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$color,
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array $scale_data
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);
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/**
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* Scales each row.
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*
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* @param string $spatial spatial data of a row
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*
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* @return array array containing the min, max values for x and y coordinates
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*/
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abstract public function scaleRow($spatial);
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/**
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* Generates the WKT with the set of parameters passed by the GIS editor.
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*
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* @param array $gis_data GIS data
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* @param int $index index into the parameter object
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* @param string|null $empty value for empty points
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*
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* @return string WKT with the set of parameters passed by the GIS editor
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*/
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abstract public function generateWkt(array $gis_data, $index, $empty = '');
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/**
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* Returns OpenLayers.Bounds object that correspond to the bounds of GIS data.
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*
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* @param int $srid spatial reference ID
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* @param array $scale_data data related to scaling
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*
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* @return string OpenLayers.Bounds object that
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* correspond to the bounds of GIS data
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*/
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protected function getBoundsForOl(int $srid, array $scale_data)
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{
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return sprintf(
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'var minLoc = [%s, %s];'
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. 'var maxLoc = [%s, %s];'
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. 'var ext = ol.extent.boundingExtent([minLoc, maxLoc]);'
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. 'ext = ol.proj.transformExtent(ext, ol.proj.get("EPSG:%s"), ol.proj.get(\'EPSG:3857\'));'
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. 'map.getView().fit(ext, map.getSize());',
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$scale_data['minX'],
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$scale_data['minY'],
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$scale_data['maxX'],
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$scale_data['maxY'],
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$srid
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);
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}
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/**
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* Updates the min, max values with the given point set.
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*
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* @param string $point_set point set
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* @param array $min_max existing min, max values
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*
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* @return array the updated min, max values
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*/
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protected function setMinMax($point_set, array $min_max)
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{
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// Separate each point
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$points = explode(',', $point_set);
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foreach ($points as $point) {
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// Extract coordinates of the point
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$cordinates = explode(' ', $point);
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$x = (float) $cordinates[0];
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if (! isset($min_max['maxX']) || $x > $min_max['maxX']) {
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$min_max['maxX'] = $x;
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}
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if (! isset($min_max['minX']) || $x < $min_max['minX']) {
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$min_max['minX'] = $x;
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}
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$y = (float) $cordinates[1];
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if (! isset($min_max['maxY']) || $y > $min_max['maxY']) {
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$min_max['maxY'] = $y;
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}
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if (isset($min_max['minY']) && $y >= $min_max['minY']) {
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continue;
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}
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$min_max['minY'] = $y;
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}
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return $min_max;
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}
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/**
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* Generates parameters for the GIS data editor from the value of the GIS column.
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* This method performs common work.
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* More specific work is performed by each of the geom classes.
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*
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* @param string $value value of the GIS column
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*
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* @return array parameters for the GIS editor from the value of the GIS column
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*/
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public function generateParams($value)
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{
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$geom_types = '(POINT|MULTIPOINT|LINESTRING|MULTILINESTRING|POLYGON|MULTIPOLYGON|GEOMETRYCOLLECTION)';
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$srid = 0;
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$wkt = '';
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if (preg_match("/^'" . $geom_types . "\(.*\)',[0-9]*$/i", $value)) {
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$last_comma = mb_strripos($value, ',');
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$srid = (int) trim(mb_substr($value, $last_comma + 1));
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$wkt = trim(mb_substr($value, 1, $last_comma - 2));
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} elseif (preg_match('/^' . $geom_types . '\(.*\)$/i', $value)) {
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$wkt = $value;
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}
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return [
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'srid' => $srid,
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'wkt' => $wkt,
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];
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}
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/**
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* Extracts points, scales and returns them as an array.
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*
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* @param string $point_set string of comma separated points
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* @param array|null $scale_data data related to scaling
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* @param bool $linear if true, as a 1D array, else as a 2D array
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*
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* @return array scaled points
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*/
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protected function extractPoints($point_set, $scale_data, $linear = false): array
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{
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$points_arr = [];
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// Separate each point
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$points = explode(',', $point_set);
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foreach ($points as $point) {
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$point = str_replace(['(', ')'], '', $point);
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// Extract coordinates of the point
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$coordinates = explode(' ', $point);
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if (isset($coordinates[0], $coordinates[1]) && trim($coordinates[0]) != '' && trim($coordinates[1]) != '') {
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if ($scale_data != null) {
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$x = ($coordinates[0] - $scale_data['x']) * $scale_data['scale'];
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$y = $scale_data['height']
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- ($coordinates[1] - $scale_data['y']) * $scale_data['scale'];
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} else {
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$x = floatval(trim($coordinates[0]));
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$y = floatval(trim($coordinates[1]));
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}
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} else {
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$x = 0;
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$y = 0;
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}
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if (! $linear) {
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$points_arr[] = [
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$x,
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$y,
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];
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} else {
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$points_arr[] = $x;
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$points_arr[] = $y;
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}
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}
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return $points_arr;
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}
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/**
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* Generates JavaScript for adding an array of polygons to OpenLayers.
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*
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* @param array $polygons x and y coordinates for each polygon
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* @param int $srid spatial reference id
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*
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* @return string JavaScript for adding an array of polygons to OpenLayers
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*/
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protected function getPolygonArrayForOpenLayers(array $polygons, int $srid)
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{
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$ol_array = 'var polygonArray = [];';
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foreach ($polygons as $polygon) {
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$rings = explode('),(', $polygon);
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$ol_array .= $this->getPolygonForOpenLayers($rings, $srid);
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$ol_array .= 'polygonArray.push(polygon);';
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}
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return $ol_array;
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}
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/**
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* Generates JavaScript for adding points for OpenLayers polygon.
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*
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* @param array $polygon x and y coordinates for each line
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* @param int $srid spatial reference id
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*
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* @return string JavaScript for adding points for OpenLayers polygon
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*/
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protected function getPolygonForOpenLayers(array $polygon, int $srid)
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{
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return $this->getLineArrayForOpenLayers($polygon, $srid, false)
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. 'var polygon = new ol.geom.Polygon(arr);';
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}
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/**
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* Generates JavaScript for adding an array of LineString
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* or LineRing to OpenLayers.
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*
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* @param array $lines x and y coordinates for each line
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* @param int $srid spatial reference id
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* @param bool $is_line_string whether it's an array of LineString
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*
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* @return string JavaScript for adding an array of LineString
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* or LineRing to OpenLayers
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*/
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protected function getLineArrayForOpenLayers(
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array $lines,
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int $srid,
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$is_line_string = true
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) {
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$ol_array = 'var arr = [];';
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foreach ($lines as $line) {
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$ol_array .= 'var lineArr = [];';
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$points_arr = $this->extractPoints($line, null);
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$ol_array .= 'var line = ' . $this->getLineForOpenLayers($points_arr, $srid, $is_line_string) . ';';
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$ol_array .= 'var coord = line.getCoordinates();';
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$ol_array .= 'for (var i = 0; i < coord.length; i++) lineArr.push(coord[i]);';
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$ol_array .= 'arr.push(lineArr);';
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}
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return $ol_array;
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}
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/**
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* Generates JavaScript for adding a LineString or LineRing to OpenLayers.
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*
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* @param array $points_arr x and y coordinates for each point
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* @param int $srid spatial reference id
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* @param bool $is_line_string whether it's a LineString
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*
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* @return string JavaScript for adding a LineString or LineRing to OpenLayers
|
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*/
|
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protected function getLineForOpenLayers(
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array $points_arr,
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int $srid,
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$is_line_string = true
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) {
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return 'new ol.geom.'
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. ($is_line_string ? 'LineString' : 'LinearRing') . '('
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. $this->getPointsArrayForOpenLayers($points_arr, $srid)
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. ')';
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}
|
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|
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/**
|
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* Generates JavaScript for adding an array of points to OpenLayers.
|
||||
*
|
||||
* @param array $points_arr x and y coordinates for each point
|
||||
* @param int $srid spatial reference id
|
||||
*
|
||||
* @return string JavaScript for adding an array of points to OpenLayers
|
||||
*/
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protected function getPointsArrayForOpenLayers(array $points_arr, int $srid)
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{
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$ol_array = 'new Array(';
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foreach ($points_arr as $point) {
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$ol_array .= $this->getPointForOpenLayers($point, $srid) . '.getCoordinates(), ';
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}
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|
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$ol_array = mb_substr($ol_array, 0, -2);
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||||
|
||||
return $ol_array . ')';
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||||
}
|
||||
|
||||
/**
|
||||
* Generates JavaScript for adding a point to OpenLayers.
|
||||
*
|
||||
* @param array $point array containing the x and y coordinates of the point
|
||||
* @param int $srid spatial reference id
|
||||
*
|
||||
* @return string JavaScript for adding points to OpenLayers
|
||||
*/
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||||
protected function getPointForOpenLayers(array $point, int $srid)
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||||
{
|
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return '(new ol.geom.Point([' . $point[0] . ',' . $point[1] . '])'
|
||||
. '.transform(ol.proj.get("EPSG:' . $srid . '")'
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. ', ol.proj.get(\'EPSG:3857\')))';
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||||
}
|
||||
|
||||
protected function getRandomId(): int
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||||
{
|
||||
return random_int(0, mt_getrandmax());
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||||
}
|
||||
}
|
||||
367
admin/phpMyAdmin/libraries/classes/Gis/GisGeometryCollection.php
Normal file
367
admin/phpMyAdmin/libraries/classes/Gis/GisGeometryCollection.php
Normal file
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@ -0,0 +1,367 @@
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<?php
|
||||
/**
|
||||
* Handles actions related to GIS GEOMETRYCOLLECTION objects
|
||||
*/
|
||||
|
||||
declare(strict_types=1);
|
||||
|
||||
namespace PhpMyAdmin\Gis;
|
||||
|
||||
use PhpMyAdmin\Image\ImageWrapper;
|
||||
use TCPDF;
|
||||
|
||||
use function array_merge;
|
||||
use function count;
|
||||
use function mb_strpos;
|
||||
use function mb_substr;
|
||||
use function str_split;
|
||||
|
||||
/**
|
||||
* Handles actions related to GIS GEOMETRYCOLLECTION objects
|
||||
*/
|
||||
class GisGeometryCollection extends GisGeometry
|
||||
{
|
||||
/** @var self */
|
||||
private static $instance;
|
||||
|
||||
/**
|
||||
* A private constructor; prevents direct creation of object.
|
||||
*/
|
||||
private function __construct()
|
||||
{
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the singleton.
|
||||
*
|
||||
* @return GisGeometryCollection the singleton
|
||||
*/
|
||||
public static function singleton()
|
||||
{
|
||||
if (! isset(self::$instance)) {
|
||||
self::$instance = new GisGeometryCollection();
|
||||
}
|
||||
|
||||
return self::$instance;
|
||||
}
|
||||
|
||||
/**
|
||||
* Scales each row.
|
||||
*
|
||||
* @param string $spatial spatial data of a row
|
||||
*
|
||||
* @return array array containing the min, max values for x and y coordinates
|
||||
*/
|
||||
public function scaleRow($spatial)
|
||||
{
|
||||
$min_max = [];
|
||||
|
||||
// Trim to remove leading 'GEOMETRYCOLLECTION(' and trailing ')'
|
||||
$goem_col = mb_substr($spatial, 19, -1);
|
||||
|
||||
// Split the geometry collection object to get its constituents.
|
||||
$sub_parts = $this->explodeGeomCol($goem_col);
|
||||
|
||||
foreach ($sub_parts as $sub_part) {
|
||||
$type_pos = mb_strpos($sub_part, '(');
|
||||
if ($type_pos === false) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$type = mb_substr($sub_part, 0, $type_pos);
|
||||
|
||||
$gis_obj = GisFactory::factory($type);
|
||||
if (! $gis_obj) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$scale_data = $gis_obj->scaleRow($sub_part);
|
||||
|
||||
// Update minimum/maximum values for x and y coordinates.
|
||||
$c_maxX = (float) $scale_data['maxX'];
|
||||
if (! isset($min_max['maxX']) || $c_maxX > $min_max['maxX']) {
|
||||
$min_max['maxX'] = $c_maxX;
|
||||
}
|
||||
|
||||
$c_minX = (float) $scale_data['minX'];
|
||||
if (! isset($min_max['minX']) || $c_minX < $min_max['minX']) {
|
||||
$min_max['minX'] = $c_minX;
|
||||
}
|
||||
|
||||
$c_maxY = (float) $scale_data['maxY'];
|
||||
if (! isset($min_max['maxY']) || $c_maxY > $min_max['maxY']) {
|
||||
$min_max['maxY'] = $c_maxY;
|
||||
}
|
||||
|
||||
$c_minY = (float) $scale_data['minY'];
|
||||
if (isset($min_max['minY']) && $c_minY >= $min_max['minY']) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$min_max['minY'] = $c_minY;
|
||||
}
|
||||
|
||||
return $min_max;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the PNG image object, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS POLYGON object
|
||||
* @param string|null $label Label for the GIS POLYGON object
|
||||
* @param string $color Color for the GIS POLYGON object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*/
|
||||
public function prepareRowAsPng(
|
||||
$spatial,
|
||||
?string $label,
|
||||
$color,
|
||||
array $scale_data,
|
||||
ImageWrapper $image
|
||||
): ImageWrapper {
|
||||
// Trim to remove leading 'GEOMETRYCOLLECTION(' and trailing ')'
|
||||
$goem_col = mb_substr($spatial, 19, -1);
|
||||
// Split the geometry collection object to get its constituents.
|
||||
$sub_parts = $this->explodeGeomCol($goem_col);
|
||||
|
||||
foreach ($sub_parts as $sub_part) {
|
||||
$type_pos = mb_strpos($sub_part, '(');
|
||||
if ($type_pos === false) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$type = mb_substr($sub_part, 0, $type_pos);
|
||||
|
||||
$gis_obj = GisFactory::factory($type);
|
||||
if (! $gis_obj) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$image = $gis_obj->prepareRowAsPng($sub_part, $label, $color, $scale_data, $image);
|
||||
}
|
||||
|
||||
return $image;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the TCPDF instance, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS GEOMETRYCOLLECTION object
|
||||
* @param string|null $label label for the GIS GEOMETRYCOLLECTION object
|
||||
* @param string $color color for the GIS GEOMETRYCOLLECTION object
|
||||
* @param array $scale_data array containing data related to scaling
|
||||
* @param TCPDF $pdf TCPDF instance
|
||||
*
|
||||
* @return TCPDF the modified TCPDF instance
|
||||
*/
|
||||
public function prepareRowAsPdf($spatial, ?string $label, $color, array $scale_data, $pdf)
|
||||
{
|
||||
// Trim to remove leading 'GEOMETRYCOLLECTION(' and trailing ')'
|
||||
$goem_col = mb_substr($spatial, 19, -1);
|
||||
// Split the geometry collection object to get its constituents.
|
||||
$sub_parts = $this->explodeGeomCol($goem_col);
|
||||
|
||||
foreach ($sub_parts as $sub_part) {
|
||||
$type_pos = mb_strpos($sub_part, '(');
|
||||
if ($type_pos === false) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$type = mb_substr($sub_part, 0, $type_pos);
|
||||
|
||||
$gis_obj = GisFactory::factory($type);
|
||||
if (! $gis_obj) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$pdf = $gis_obj->prepareRowAsPdf($sub_part, $label, $color, $scale_data, $pdf);
|
||||
}
|
||||
|
||||
return $pdf;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares and returns the code related to a row in the GIS dataset as SVG.
|
||||
*
|
||||
* @param string $spatial GIS GEOMETRYCOLLECTION object
|
||||
* @param string $label label for the GIS GEOMETRYCOLLECTION object
|
||||
* @param string $color color for the GIS GEOMETRYCOLLECTION object
|
||||
* @param array $scale_data array containing data related to scaling
|
||||
*
|
||||
* @return string the code related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsSvg($spatial, $label, $color, array $scale_data)
|
||||
{
|
||||
$row = '';
|
||||
|
||||
// Trim to remove leading 'GEOMETRYCOLLECTION(' and trailing ')'
|
||||
$goem_col = mb_substr($spatial, 19, -1);
|
||||
// Split the geometry collection object to get its constituents.
|
||||
$sub_parts = $this->explodeGeomCol($goem_col);
|
||||
|
||||
foreach ($sub_parts as $sub_part) {
|
||||
$type_pos = mb_strpos($sub_part, '(');
|
||||
if ($type_pos === false) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$type = mb_substr($sub_part, 0, $type_pos);
|
||||
|
||||
$gis_obj = GisFactory::factory($type);
|
||||
if (! $gis_obj) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$row .= $gis_obj->prepareRowAsSvg($sub_part, $label, $color, $scale_data);
|
||||
}
|
||||
|
||||
return $row;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares JavaScript related to a row in the GIS dataset
|
||||
* to visualize it with OpenLayers.
|
||||
*
|
||||
* @param string $spatial GIS GEOMETRYCOLLECTION object
|
||||
* @param int $srid spatial reference ID
|
||||
* @param string $label label for the GIS GEOMETRYCOLLECTION object
|
||||
* @param array $color color for the GIS GEOMETRYCOLLECTION object
|
||||
* @param array $scale_data array containing data related to scaling
|
||||
*
|
||||
* @return string JavaScript related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsOl($spatial, int $srid, $label, $color, array $scale_data)
|
||||
{
|
||||
$row = '';
|
||||
|
||||
// Trim to remove leading 'GEOMETRYCOLLECTION(' and trailing ')'
|
||||
$goem_col = mb_substr($spatial, 19, -1);
|
||||
// Split the geometry collection object to get its constituents.
|
||||
$sub_parts = $this->explodeGeomCol($goem_col);
|
||||
|
||||
foreach ($sub_parts as $sub_part) {
|
||||
$type_pos = mb_strpos($sub_part, '(');
|
||||
if ($type_pos === false) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$type = mb_substr($sub_part, 0, $type_pos);
|
||||
|
||||
$gis_obj = GisFactory::factory($type);
|
||||
if (! $gis_obj) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$row .= $gis_obj->prepareRowAsOl($sub_part, $srid, $label, $color, $scale_data);
|
||||
}
|
||||
|
||||
return $row;
|
||||
}
|
||||
|
||||
/**
|
||||
* Splits the GEOMETRYCOLLECTION object and get its constituents.
|
||||
*
|
||||
* @param string $geom_col geometry collection string
|
||||
*
|
||||
* @return array the constituents of the geometry collection object
|
||||
*/
|
||||
private function explodeGeomCol($geom_col)
|
||||
{
|
||||
$sub_parts = [];
|
||||
$br_count = 0;
|
||||
$start = 0;
|
||||
$count = 0;
|
||||
foreach (str_split($geom_col) as $char) {
|
||||
if ($char === '(') {
|
||||
$br_count++;
|
||||
} elseif ($char === ')') {
|
||||
$br_count--;
|
||||
if ($br_count == 0) {
|
||||
$sub_parts[] = mb_substr($geom_col, $start, $count + 1 - $start);
|
||||
$start = $count + 2;
|
||||
}
|
||||
}
|
||||
|
||||
$count++;
|
||||
}
|
||||
|
||||
return $sub_parts;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates the WKT with the set of parameters passed by the GIS editor.
|
||||
*
|
||||
* @param array $gis_data GIS data
|
||||
* @param int $index index into the parameter object
|
||||
* @param string|null $empty value for empty points
|
||||
*
|
||||
* @return string WKT with the set of parameters passed by the GIS editor
|
||||
*/
|
||||
public function generateWkt(array $gis_data, $index, $empty = '')
|
||||
{
|
||||
$geom_count = $gis_data['GEOMETRYCOLLECTION']['geom_count'] ?? 1;
|
||||
$wkt = 'GEOMETRYCOLLECTION(';
|
||||
for ($i = 0; $i < $geom_count; $i++) {
|
||||
if (! isset($gis_data[$i]['gis_type'])) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$type = $gis_data[$i]['gis_type'];
|
||||
$gis_obj = GisFactory::factory($type);
|
||||
if (! $gis_obj) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$wkt .= $gis_obj->generateWkt($gis_data, $i, $empty) . ',';
|
||||
}
|
||||
|
||||
if (isset($gis_data[0]['gis_type'])) {
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
}
|
||||
|
||||
return $wkt . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates parameters for the GIS data editor from the value of the GIS column.
|
||||
*
|
||||
* @param string $value of the GIS column
|
||||
*
|
||||
* @return array parameters for the GIS editor from the value of the GIS column
|
||||
*/
|
||||
public function generateParams($value)
|
||||
{
|
||||
$params = [];
|
||||
$data = GisGeometry::generateParams($value);
|
||||
$params['srid'] = $data['srid'];
|
||||
$wkt = $data['wkt'];
|
||||
|
||||
// Trim to remove leading 'GEOMETRYCOLLECTION(' and trailing ')'
|
||||
$goem_col = mb_substr($wkt, 19, -1);
|
||||
// Split the geometry collection object to get its constituents.
|
||||
$sub_parts = $this->explodeGeomCol($goem_col);
|
||||
$params['GEOMETRYCOLLECTION']['geom_count'] = count($sub_parts);
|
||||
|
||||
$i = 0;
|
||||
foreach ($sub_parts as $sub_part) {
|
||||
$type_pos = mb_strpos($sub_part, '(');
|
||||
if ($type_pos === false) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$type = mb_substr($sub_part, 0, $type_pos);
|
||||
/**
|
||||
* @var GisMultiPolygon|GisPolygon|GisMultiPoint|GisPoint|GisMultiLineString|GisLineString $gis_obj
|
||||
*/
|
||||
$gis_obj = GisFactory::factory($type);
|
||||
if (! $gis_obj) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$params = array_merge($params, $gis_obj->generateParams($sub_part, $i));
|
||||
$i++;
|
||||
}
|
||||
|
||||
return $params;
|
||||
}
|
||||
}
|
||||
321
admin/phpMyAdmin/libraries/classes/Gis/GisLineString.php
Normal file
321
admin/phpMyAdmin/libraries/classes/Gis/GisLineString.php
Normal file
|
|
@ -0,0 +1,321 @@
|
|||
<?php
|
||||
/**
|
||||
* Handles actions related to GIS LINESTRING objects
|
||||
*/
|
||||
|
||||
declare(strict_types=1);
|
||||
|
||||
namespace PhpMyAdmin\Gis;
|
||||
|
||||
use PhpMyAdmin\Image\ImageWrapper;
|
||||
use TCPDF;
|
||||
|
||||
use function count;
|
||||
use function hexdec;
|
||||
use function json_encode;
|
||||
use function mb_substr;
|
||||
use function round;
|
||||
use function trim;
|
||||
|
||||
/**
|
||||
* Handles actions related to GIS LINESTRING objects
|
||||
*/
|
||||
class GisLineString extends GisGeometry
|
||||
{
|
||||
/** @var self */
|
||||
private static $instance;
|
||||
|
||||
/**
|
||||
* A private constructor; prevents direct creation of object.
|
||||
*/
|
||||
private function __construct()
|
||||
{
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the singleton.
|
||||
*
|
||||
* @return GisLineString the singleton
|
||||
*/
|
||||
public static function singleton()
|
||||
{
|
||||
if (! isset(self::$instance)) {
|
||||
self::$instance = new GisLineString();
|
||||
}
|
||||
|
||||
return self::$instance;
|
||||
}
|
||||
|
||||
/**
|
||||
* Scales each row.
|
||||
*
|
||||
* @param string $spatial spatial data of a row
|
||||
*
|
||||
* @return array an array containing the min, max values for x and y coordinates
|
||||
*/
|
||||
public function scaleRow($spatial)
|
||||
{
|
||||
// Trim to remove leading 'LINESTRING(' and trailing ')'
|
||||
$linestring = mb_substr($spatial, 11, -1);
|
||||
|
||||
return $this->setMinMax($linestring, []);
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the PNG image object, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS POLYGON object
|
||||
* @param string|null $label Label for the GIS POLYGON object
|
||||
* @param string $line_color Color for the GIS POLYGON object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*/
|
||||
public function prepareRowAsPng(
|
||||
$spatial,
|
||||
?string $label,
|
||||
$line_color,
|
||||
array $scale_data,
|
||||
ImageWrapper $image
|
||||
): ImageWrapper {
|
||||
// allocate colors
|
||||
$black = $image->colorAllocate(0, 0, 0);
|
||||
$red = (int) hexdec(mb_substr($line_color, 1, 2));
|
||||
$green = (int) hexdec(mb_substr($line_color, 3, 2));
|
||||
$blue = (int) hexdec(mb_substr($line_color, 4, 2));
|
||||
$color = $image->colorAllocate($red, $green, $blue);
|
||||
|
||||
$label = trim($label ?? '');
|
||||
|
||||
// Trim to remove leading 'LINESTRING(' and trailing ')'
|
||||
$lineString = mb_substr($spatial, 11, -1);
|
||||
$points_arr = $this->extractPoints($lineString, $scale_data);
|
||||
|
||||
foreach ($points_arr as $point) {
|
||||
if (isset($temp_point)) {
|
||||
// draw line section
|
||||
$image->line(
|
||||
(int) round($temp_point[0]),
|
||||
(int) round($temp_point[1]),
|
||||
(int) round($point[0]),
|
||||
(int) round($point[1]),
|
||||
$color
|
||||
);
|
||||
}
|
||||
|
||||
$temp_point = $point;
|
||||
}
|
||||
|
||||
// print label if applicable
|
||||
if ($label !== '') {
|
||||
$image->string(
|
||||
1,
|
||||
(int) round($points_arr[1][0]),
|
||||
(int) round($points_arr[1][1]),
|
||||
$label,
|
||||
$black
|
||||
);
|
||||
}
|
||||
|
||||
return $image;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the TCPDF instance, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS LINESTRING object
|
||||
* @param string|null $label Label for the GIS LINESTRING object
|
||||
* @param string $line_color Color for the GIS LINESTRING object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
* @param TCPDF $pdf TCPDF instance
|
||||
*
|
||||
* @return TCPDF the modified TCPDF instance
|
||||
*/
|
||||
public function prepareRowAsPdf($spatial, ?string $label, $line_color, array $scale_data, $pdf)
|
||||
{
|
||||
// allocate colors
|
||||
$red = hexdec(mb_substr($line_color, 1, 2));
|
||||
$green = hexdec(mb_substr($line_color, 3, 2));
|
||||
$blue = hexdec(mb_substr($line_color, 4, 2));
|
||||
$line = [
|
||||
'width' => 1.5,
|
||||
'color' => [
|
||||
$red,
|
||||
$green,
|
||||
$blue,
|
||||
],
|
||||
];
|
||||
|
||||
$label = trim($label ?? '');
|
||||
|
||||
// Trim to remove leading 'LINESTRING(' and trailing ')'
|
||||
$linesrting = mb_substr($spatial, 11, -1);
|
||||
$points_arr = $this->extractPoints($linesrting, $scale_data);
|
||||
|
||||
foreach ($points_arr as $point) {
|
||||
if (isset($temp_point)) {
|
||||
// draw line section
|
||||
$pdf->Line($temp_point[0], $temp_point[1], $point[0], $point[1], $line);
|
||||
}
|
||||
|
||||
$temp_point = $point;
|
||||
}
|
||||
|
||||
// print label
|
||||
if ($label !== '') {
|
||||
$pdf->setXY($points_arr[1][0], $points_arr[1][1]);
|
||||
$pdf->setFontSize(5);
|
||||
$pdf->Cell(0, 0, $label);
|
||||
}
|
||||
|
||||
return $pdf;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares and returns the code related to a row in the GIS dataset as SVG.
|
||||
*
|
||||
* @param string $spatial GIS LINESTRING object
|
||||
* @param string $label Label for the GIS LINESTRING object
|
||||
* @param string $line_color Color for the GIS LINESTRING object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string the code related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsSvg($spatial, $label, $line_color, array $scale_data)
|
||||
{
|
||||
$line_options = [
|
||||
'name' => $label,
|
||||
'id' => $label . $this->getRandomId(),
|
||||
'class' => 'linestring vector',
|
||||
'fill' => 'none',
|
||||
'stroke' => $line_color,
|
||||
'stroke-width' => 2,
|
||||
];
|
||||
|
||||
// Trim to remove leading 'LINESTRING(' and trailing ')'
|
||||
$linesrting = mb_substr($spatial, 11, -1);
|
||||
$points_arr = $this->extractPoints($linesrting, $scale_data);
|
||||
|
||||
$row = '<polyline points="';
|
||||
foreach ($points_arr as $point) {
|
||||
$row .= $point[0] . ',' . $point[1] . ' ';
|
||||
}
|
||||
|
||||
$row .= '"';
|
||||
foreach ($line_options as $option => $val) {
|
||||
$row .= ' ' . $option . '="' . trim((string) $val) . '"';
|
||||
}
|
||||
|
||||
$row .= '/>';
|
||||
|
||||
return $row;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares JavaScript related to a row in the GIS dataset
|
||||
* to visualize it with OpenLayers.
|
||||
*
|
||||
* @param string $spatial GIS LINESTRING object
|
||||
* @param int $srid Spatial reference ID
|
||||
* @param string $label Label for the GIS LINESTRING object
|
||||
* @param array $line_color Color for the GIS LINESTRING object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string JavaScript related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsOl($spatial, int $srid, $label, $line_color, array $scale_data)
|
||||
{
|
||||
$stroke_style = [
|
||||
'color' => $line_color,
|
||||
'width' => 2,
|
||||
];
|
||||
|
||||
$result = 'var style = new ol.style.Style({'
|
||||
. 'stroke: new ol.style.Stroke(' . json_encode($stroke_style) . ')';
|
||||
if (trim($label) !== '') {
|
||||
$text_style = ['text' => trim($label)];
|
||||
$result .= ', text: new ol.style.Text(' . json_encode($text_style) . ')';
|
||||
}
|
||||
|
||||
$result .= '});';
|
||||
|
||||
if ($srid === 0) {
|
||||
$srid = 4326;
|
||||
}
|
||||
|
||||
$result .= $this->getBoundsForOl($srid, $scale_data);
|
||||
|
||||
// Trim to remove leading 'LINESTRING(' and trailing ')'
|
||||
$linesrting = mb_substr($spatial, 11, -1);
|
||||
$points_arr = $this->extractPoints($linesrting, null);
|
||||
|
||||
return $result . 'var line = new ol.Feature({geometry: '
|
||||
. $this->getLineForOpenLayers($points_arr, $srid) . '});'
|
||||
. 'line.setStyle(style);'
|
||||
. 'vectorLayer.addFeature(line);';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate the WKT with the set of parameters passed by the GIS editor.
|
||||
*
|
||||
* @param array $gis_data GIS data
|
||||
* @param int $index Index into the parameter object
|
||||
* @param string|null $empty Value for empty points
|
||||
*
|
||||
* @return string WKT with the set of parameters passed by the GIS editor
|
||||
*/
|
||||
public function generateWkt(array $gis_data, $index, $empty = '')
|
||||
{
|
||||
$no_of_points = $gis_data[$index]['LINESTRING']['no_of_points'] ?? 2;
|
||||
if ($no_of_points < 2) {
|
||||
$no_of_points = 2;
|
||||
}
|
||||
|
||||
$wkt = 'LINESTRING(';
|
||||
for ($i = 0; $i < $no_of_points; $i++) {
|
||||
$wkt .= (isset($gis_data[$index]['LINESTRING'][$i]['x'])
|
||||
&& trim((string) $gis_data[$index]['LINESTRING'][$i]['x']) != ''
|
||||
? $gis_data[$index]['LINESTRING'][$i]['x'] : $empty)
|
||||
. ' ' . (isset($gis_data[$index]['LINESTRING'][$i]['y'])
|
||||
&& trim((string) $gis_data[$index]['LINESTRING'][$i]['y']) != ''
|
||||
? $gis_data[$index]['LINESTRING'][$i]['y'] : $empty) . ',';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
|
||||
return $wkt . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate parameters for the GIS data editor from the value of the GIS column.
|
||||
*
|
||||
* @param string $value of the GIS column
|
||||
* @param int $index of the geometry
|
||||
*
|
||||
* @return array params for the GIS data editor from the value of the GIS column
|
||||
*/
|
||||
public function generateParams($value, $index = -1)
|
||||
{
|
||||
$params = [];
|
||||
if ($index == -1) {
|
||||
$index = 0;
|
||||
$data = GisGeometry::generateParams($value);
|
||||
$params['srid'] = $data['srid'];
|
||||
$wkt = $data['wkt'];
|
||||
} else {
|
||||
$params[$index]['gis_type'] = 'LINESTRING';
|
||||
$wkt = $value;
|
||||
}
|
||||
|
||||
// Trim to remove leading 'LINESTRING(' and trailing ')'
|
||||
$linestring = mb_substr($wkt, 11, -1);
|
||||
$points_arr = $this->extractPoints($linestring, null);
|
||||
|
||||
$no_of_points = count($points_arr);
|
||||
$params[$index]['LINESTRING']['no_of_points'] = $no_of_points;
|
||||
for ($i = 0; $i < $no_of_points; $i++) {
|
||||
$params[$index]['LINESTRING'][$i]['x'] = $points_arr[$i][0];
|
||||
$params[$index]['LINESTRING'][$i]['y'] = $points_arr[$i][1];
|
||||
}
|
||||
|
||||
return $params;
|
||||
}
|
||||
}
|
||||
400
admin/phpMyAdmin/libraries/classes/Gis/GisMultiLineString.php
Normal file
400
admin/phpMyAdmin/libraries/classes/Gis/GisMultiLineString.php
Normal file
|
|
@ -0,0 +1,400 @@
|
|||
<?php
|
||||
/**
|
||||
* Handles actions related to GIS MULTILINESTRING objects
|
||||
*/
|
||||
|
||||
declare(strict_types=1);
|
||||
|
||||
namespace PhpMyAdmin\Gis;
|
||||
|
||||
use PhpMyAdmin\Image\ImageWrapper;
|
||||
use TCPDF;
|
||||
|
||||
use function count;
|
||||
use function explode;
|
||||
use function hexdec;
|
||||
use function json_encode;
|
||||
use function mb_substr;
|
||||
use function round;
|
||||
use function trim;
|
||||
|
||||
/**
|
||||
* Handles actions related to GIS MULTILINESTRING objects
|
||||
*/
|
||||
class GisMultiLineString extends GisGeometry
|
||||
{
|
||||
/** @var self */
|
||||
private static $instance;
|
||||
|
||||
/**
|
||||
* A private constructor; prevents direct creation of object.
|
||||
*/
|
||||
private function __construct()
|
||||
{
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the singleton.
|
||||
*
|
||||
* @return GisMultiLineString the singleton
|
||||
*/
|
||||
public static function singleton()
|
||||
{
|
||||
if (! isset(self::$instance)) {
|
||||
self::$instance = new GisMultiLineString();
|
||||
}
|
||||
|
||||
return self::$instance;
|
||||
}
|
||||
|
||||
/**
|
||||
* Scales each row.
|
||||
*
|
||||
* @param string $spatial spatial data of a row
|
||||
*
|
||||
* @return array an array containing the min, max values for x and y coordinates
|
||||
*/
|
||||
public function scaleRow($spatial)
|
||||
{
|
||||
$min_max = [];
|
||||
|
||||
// Trim to remove leading 'MULTILINESTRING((' and trailing '))'
|
||||
$multilinestirng = mb_substr($spatial, 17, -2);
|
||||
// Separate each linestring
|
||||
$linestirngs = explode('),(', $multilinestirng);
|
||||
|
||||
foreach ($linestirngs as $linestring) {
|
||||
$min_max = $this->setMinMax($linestring, $min_max);
|
||||
}
|
||||
|
||||
return $min_max;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the PNG image object, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS POLYGON object
|
||||
* @param string|null $label Label for the GIS POLYGON object
|
||||
* @param string $line_color Color for the GIS POLYGON object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*/
|
||||
public function prepareRowAsPng(
|
||||
$spatial,
|
||||
?string $label,
|
||||
$line_color,
|
||||
array $scale_data,
|
||||
ImageWrapper $image
|
||||
): ImageWrapper {
|
||||
// allocate colors
|
||||
$black = $image->colorAllocate(0, 0, 0);
|
||||
$red = (int) hexdec(mb_substr($line_color, 1, 2));
|
||||
$green = (int) hexdec(mb_substr($line_color, 3, 2));
|
||||
$blue = (int) hexdec(mb_substr($line_color, 4, 2));
|
||||
$color = $image->colorAllocate($red, $green, $blue);
|
||||
|
||||
$label = trim($label ?? '');
|
||||
|
||||
// Trim to remove leading 'MULTILINESTRING((' and trailing '))'
|
||||
$multilinestirng = mb_substr($spatial, 17, -2);
|
||||
// Separate each linestring
|
||||
$linestirngs = explode('),(', $multilinestirng);
|
||||
|
||||
$first_line = true;
|
||||
foreach ($linestirngs as $linestring) {
|
||||
$points_arr = $this->extractPoints($linestring, $scale_data);
|
||||
foreach ($points_arr as $point) {
|
||||
if (isset($temp_point)) {
|
||||
// draw line section
|
||||
$image->line(
|
||||
(int) round($temp_point[0]),
|
||||
(int) round($temp_point[1]),
|
||||
(int) round($point[0]),
|
||||
(int) round($point[1]),
|
||||
$color
|
||||
);
|
||||
}
|
||||
|
||||
$temp_point = $point;
|
||||
}
|
||||
|
||||
unset($temp_point);
|
||||
// print label if applicable
|
||||
if ($label !== '' && $first_line) {
|
||||
$image->string(
|
||||
1,
|
||||
(int) round($points_arr[1][0]),
|
||||
(int) round($points_arr[1][1]),
|
||||
$label,
|
||||
$black
|
||||
);
|
||||
}
|
||||
|
||||
$first_line = false;
|
||||
}
|
||||
|
||||
return $image;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the TCPDF instance, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS MULTILINESTRING object
|
||||
* @param string|null $label Label for the GIS MULTILINESTRING object
|
||||
* @param string $line_color Color for the GIS MULTILINESTRING object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
* @param TCPDF $pdf TCPDF instance
|
||||
*
|
||||
* @return TCPDF the modified TCPDF instance
|
||||
*/
|
||||
public function prepareRowAsPdf($spatial, ?string $label, $line_color, array $scale_data, $pdf)
|
||||
{
|
||||
// allocate colors
|
||||
$red = hexdec(mb_substr($line_color, 1, 2));
|
||||
$green = hexdec(mb_substr($line_color, 3, 2));
|
||||
$blue = hexdec(mb_substr($line_color, 4, 2));
|
||||
$line = [
|
||||
'width' => 1.5,
|
||||
'color' => [
|
||||
$red,
|
||||
$green,
|
||||
$blue,
|
||||
],
|
||||
];
|
||||
|
||||
$label = trim($label ?? '');
|
||||
|
||||
// Trim to remove leading 'MULTILINESTRING((' and trailing '))'
|
||||
$multilinestirng = mb_substr($spatial, 17, -2);
|
||||
// Separate each linestring
|
||||
$linestirngs = explode('),(', $multilinestirng);
|
||||
|
||||
$first_line = true;
|
||||
foreach ($linestirngs as $linestring) {
|
||||
$points_arr = $this->extractPoints($linestring, $scale_data);
|
||||
foreach ($points_arr as $point) {
|
||||
if (isset($temp_point)) {
|
||||
// draw line section
|
||||
$pdf->Line($temp_point[0], $temp_point[1], $point[0], $point[1], $line);
|
||||
}
|
||||
|
||||
$temp_point = $point;
|
||||
}
|
||||
|
||||
unset($temp_point);
|
||||
// print label
|
||||
if ($label !== '' && $first_line) {
|
||||
$pdf->setXY($points_arr[1][0], $points_arr[1][1]);
|
||||
$pdf->setFontSize(5);
|
||||
$pdf->Cell(0, 0, $label);
|
||||
}
|
||||
|
||||
$first_line = false;
|
||||
}
|
||||
|
||||
return $pdf;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares and returns the code related to a row in the GIS dataset as SVG.
|
||||
*
|
||||
* @param string $spatial GIS MULTILINESTRING object
|
||||
* @param string $label Label for the GIS MULTILINESTRING object
|
||||
* @param string $line_color Color for the GIS MULTILINESTRING object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string the code related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsSvg($spatial, $label, $line_color, array $scale_data)
|
||||
{
|
||||
$line_options = [
|
||||
'name' => $label,
|
||||
'class' => 'linestring vector',
|
||||
'fill' => 'none',
|
||||
'stroke' => $line_color,
|
||||
'stroke-width' => 2,
|
||||
];
|
||||
|
||||
// Trim to remove leading 'MULTILINESTRING((' and trailing '))'
|
||||
$multilinestirng = mb_substr($spatial, 17, -2);
|
||||
// Separate each linestring
|
||||
$linestirngs = explode('),(', $multilinestirng);
|
||||
|
||||
$row = '';
|
||||
foreach ($linestirngs as $linestring) {
|
||||
$points_arr = $this->extractPoints($linestring, $scale_data);
|
||||
|
||||
$row .= '<polyline points="';
|
||||
foreach ($points_arr as $point) {
|
||||
$row .= $point[0] . ',' . $point[1] . ' ';
|
||||
}
|
||||
|
||||
$row .= '"';
|
||||
$line_options['id'] = $label . $this->getRandomId();
|
||||
foreach ($line_options as $option => $val) {
|
||||
$row .= ' ' . $option . '="' . trim((string) $val) . '"';
|
||||
}
|
||||
|
||||
$row .= '/>';
|
||||
}
|
||||
|
||||
return $row;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares JavaScript related to a row in the GIS dataset
|
||||
* to visualize it with OpenLayers.
|
||||
*
|
||||
* @param string $spatial GIS MULTILINESTRING object
|
||||
* @param int $srid Spatial reference ID
|
||||
* @param string $label Label for the GIS MULTILINESTRING object
|
||||
* @param array $line_color Color for the GIS MULTILINESTRING object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string JavaScript related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsOl($spatial, int $srid, $label, $line_color, array $scale_data)
|
||||
{
|
||||
$stroke_style = [
|
||||
'color' => $line_color,
|
||||
'width' => 2,
|
||||
];
|
||||
|
||||
$row = 'var style = new ol.style.Style({'
|
||||
. 'stroke: new ol.style.Stroke(' . json_encode($stroke_style) . ')';
|
||||
if (trim($label) !== '') {
|
||||
$text_style = ['text' => trim($label)];
|
||||
$row .= ', text: new ol.style.Text(' . json_encode($text_style) . ')';
|
||||
}
|
||||
|
||||
$row .= '});';
|
||||
|
||||
if ($srid === 0) {
|
||||
$srid = 4326;
|
||||
}
|
||||
|
||||
$row .= $this->getBoundsForOl($srid, $scale_data);
|
||||
|
||||
// Trim to remove leading 'MULTILINESTRING((' and trailing '))'
|
||||
$multilinestirng = mb_substr($spatial, 17, -2);
|
||||
// Separate each linestring
|
||||
$linestirngs = explode('),(', $multilinestirng);
|
||||
|
||||
return $row . $this->getLineArrayForOpenLayers($linestirngs, $srid)
|
||||
. 'var multiLineString = new ol.geom.MultiLineString(arr);'
|
||||
. 'var feature = new ol.Feature({geometry: multiLineString});'
|
||||
. 'feature.setStyle(style);'
|
||||
. 'vectorLayer.addFeature(feature);';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate the WKT with the set of parameters passed by the GIS editor.
|
||||
*
|
||||
* @param array $gis_data GIS data
|
||||
* @param int $index Index into the parameter object
|
||||
* @param string|null $empty Value for empty points
|
||||
*
|
||||
* @return string WKT with the set of parameters passed by the GIS editor
|
||||
*/
|
||||
public function generateWkt(array $gis_data, $index, $empty = '')
|
||||
{
|
||||
$data_row = $gis_data[$index]['MULTILINESTRING'];
|
||||
|
||||
$no_of_lines = $data_row['no_of_lines'] ?? 1;
|
||||
if ($no_of_lines < 1) {
|
||||
$no_of_lines = 1;
|
||||
}
|
||||
|
||||
$wkt = 'MULTILINESTRING(';
|
||||
for ($i = 0; $i < $no_of_lines; $i++) {
|
||||
$no_of_points = $data_row[$i]['no_of_points'] ?? 2;
|
||||
if ($no_of_points < 2) {
|
||||
$no_of_points = 2;
|
||||
}
|
||||
|
||||
$wkt .= '(';
|
||||
for ($j = 0; $j < $no_of_points; $j++) {
|
||||
$wkt .= (isset($data_row[$i][$j]['x'])
|
||||
&& trim((string) $data_row[$i][$j]['x']) != ''
|
||||
? $data_row[$i][$j]['x'] : $empty)
|
||||
. ' ' . (isset($data_row[$i][$j]['y'])
|
||||
&& trim((string) $data_row[$i][$j]['y']) != ''
|
||||
? $data_row[$i][$j]['y'] : $empty) . ',';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
$wkt .= '),';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
|
||||
return $wkt . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate the WKT for the data from ESRI shape files.
|
||||
*
|
||||
* @param array $row_data GIS data
|
||||
*
|
||||
* @return string the WKT for the data from ESRI shape files
|
||||
*/
|
||||
public function getShape(array $row_data)
|
||||
{
|
||||
$wkt = 'MULTILINESTRING(';
|
||||
for ($i = 0; $i < $row_data['numparts']; $i++) {
|
||||
$wkt .= '(';
|
||||
foreach ($row_data['parts'][$i]['points'] as $point) {
|
||||
$wkt .= $point['x'] . ' ' . $point['y'] . ',';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
$wkt .= '),';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
|
||||
return $wkt . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate parameters for the GIS data editor from the value of the GIS column.
|
||||
*
|
||||
* @param string $value Value of the GIS column
|
||||
* @param int $index Index of the geometry
|
||||
*
|
||||
* @return array params for the GIS data editor from the value of the GIS column
|
||||
*/
|
||||
public function generateParams($value, $index = -1)
|
||||
{
|
||||
$params = [];
|
||||
if ($index == -1) {
|
||||
$index = 0;
|
||||
$data = GisGeometry::generateParams($value);
|
||||
$params['srid'] = $data['srid'];
|
||||
$wkt = $data['wkt'];
|
||||
} else {
|
||||
$params[$index]['gis_type'] = 'MULTILINESTRING';
|
||||
$wkt = $value;
|
||||
}
|
||||
|
||||
// Trim to remove leading 'MULTILINESTRING((' and trailing '))'
|
||||
$multilinestirng = mb_substr($wkt, 17, -2);
|
||||
// Separate each linestring
|
||||
$linestirngs = explode('),(', $multilinestirng);
|
||||
$params[$index]['MULTILINESTRING']['no_of_lines'] = count($linestirngs);
|
||||
|
||||
$j = 0;
|
||||
foreach ($linestirngs as $linestring) {
|
||||
$points_arr = $this->extractPoints($linestring, null);
|
||||
$no_of_points = count($points_arr);
|
||||
$params[$index]['MULTILINESTRING'][$j]['no_of_points'] = $no_of_points;
|
||||
for ($i = 0; $i < $no_of_points; $i++) {
|
||||
$params[$index]['MULTILINESTRING'][$j][$i]['x'] = $points_arr[$i][0];
|
||||
$params[$index]['MULTILINESTRING'][$j][$i]['y'] = $points_arr[$i][1];
|
||||
}
|
||||
|
||||
$j++;
|
||||
}
|
||||
|
||||
return $params;
|
||||
}
|
||||
}
|
||||
392
admin/phpMyAdmin/libraries/classes/Gis/GisMultiPoint.php
Normal file
392
admin/phpMyAdmin/libraries/classes/Gis/GisMultiPoint.php
Normal file
|
|
@ -0,0 +1,392 @@
|
|||
<?php
|
||||
/**
|
||||
* Handles actions related to GIS MULTIPOINT objects
|
||||
*/
|
||||
|
||||
declare(strict_types=1);
|
||||
|
||||
namespace PhpMyAdmin\Gis;
|
||||
|
||||
use PhpMyAdmin\Image\ImageWrapper;
|
||||
use TCPDF;
|
||||
|
||||
use function count;
|
||||
use function hexdec;
|
||||
use function json_encode;
|
||||
use function mb_substr;
|
||||
use function round;
|
||||
use function trim;
|
||||
|
||||
/**
|
||||
* Handles actions related to GIS MULTIPOINT objects
|
||||
*/
|
||||
class GisMultiPoint extends GisGeometry
|
||||
{
|
||||
/** @var self */
|
||||
private static $instance;
|
||||
|
||||
/**
|
||||
* A private constructor; prevents direct creation of object.
|
||||
*/
|
||||
private function __construct()
|
||||
{
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the singleton.
|
||||
*
|
||||
* @return GisMultiPoint the singleton
|
||||
*/
|
||||
public static function singleton()
|
||||
{
|
||||
if (! isset(self::$instance)) {
|
||||
self::$instance = new GisMultiPoint();
|
||||
}
|
||||
|
||||
return self::$instance;
|
||||
}
|
||||
|
||||
/**
|
||||
* Scales each row.
|
||||
*
|
||||
* @param string $spatial spatial data of a row
|
||||
*
|
||||
* @return array an array containing the min, max values for x and y coordinates
|
||||
*/
|
||||
public function scaleRow($spatial)
|
||||
{
|
||||
// Trim to remove leading 'MULTIPOINT(' and trailing ')'
|
||||
$multipoint = mb_substr($spatial, 11, -1);
|
||||
|
||||
return $this->setMinMax($multipoint, []);
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the PNG image object, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS POLYGON object
|
||||
* @param string|null $label Label for the GIS POLYGON object
|
||||
* @param string $point_color Color for the GIS POLYGON object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*/
|
||||
public function prepareRowAsPng(
|
||||
$spatial,
|
||||
?string $label,
|
||||
$point_color,
|
||||
array $scale_data,
|
||||
ImageWrapper $image
|
||||
): ImageWrapper {
|
||||
// allocate colors
|
||||
$black = $image->colorAllocate(0, 0, 0);
|
||||
$red = (int) hexdec(mb_substr($point_color, 1, 2));
|
||||
$green = (int) hexdec(mb_substr($point_color, 3, 2));
|
||||
$blue = (int) hexdec(mb_substr($point_color, 4, 2));
|
||||
$color = $image->colorAllocate($red, $green, $blue);
|
||||
|
||||
// Trim to remove leading 'MULTIPOINT(' and trailing ')'
|
||||
$multipoint = mb_substr($spatial, 11, -1);
|
||||
$points_arr = $this->extractPoints($multipoint, $scale_data);
|
||||
|
||||
foreach ($points_arr as $point) {
|
||||
// draw a small circle to mark the point
|
||||
if ($point[0] == '' || $point[1] == '') {
|
||||
continue;
|
||||
}
|
||||
|
||||
$image->arc(
|
||||
(int) round($point[0]),
|
||||
(int) round($point[1]),
|
||||
7,
|
||||
7,
|
||||
0,
|
||||
360,
|
||||
$color
|
||||
);
|
||||
}
|
||||
|
||||
// print label for each point
|
||||
if ((isset($label) && trim($label) != '') && ($points_arr[0][0] != '' && $points_arr[0][1] != '')) {
|
||||
$image->string(
|
||||
1,
|
||||
(int) round($points_arr[0][0]),
|
||||
(int) round($points_arr[0][1]),
|
||||
trim($label),
|
||||
$black
|
||||
);
|
||||
}
|
||||
|
||||
return $image;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the TCPDF instance, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS MULTIPOINT object
|
||||
* @param string|null $label Label for the GIS MULTIPOINT object
|
||||
* @param string $point_color Color for the GIS MULTIPOINT object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
* @param TCPDF $pdf TCPDF instance
|
||||
*
|
||||
* @return TCPDF the modified TCPDF instance
|
||||
*/
|
||||
public function prepareRowAsPdf(
|
||||
$spatial,
|
||||
?string $label,
|
||||
$point_color,
|
||||
array $scale_data,
|
||||
$pdf
|
||||
) {
|
||||
// allocate colors
|
||||
$red = hexdec(mb_substr($point_color, 1, 2));
|
||||
$green = hexdec(mb_substr($point_color, 3, 2));
|
||||
$blue = hexdec(mb_substr($point_color, 4, 2));
|
||||
$line = [
|
||||
'width' => 1.25,
|
||||
'color' => [
|
||||
$red,
|
||||
$green,
|
||||
$blue,
|
||||
],
|
||||
];
|
||||
|
||||
// Trim to remove leading 'MULTIPOINT(' and trailing ')'
|
||||
$multipoint = mb_substr($spatial, 11, -1);
|
||||
$points_arr = $this->extractPoints($multipoint, $scale_data);
|
||||
|
||||
foreach ($points_arr as $point) {
|
||||
// draw a small circle to mark the point
|
||||
if ($point[0] == '' || $point[1] == '') {
|
||||
continue;
|
||||
}
|
||||
|
||||
$pdf->Circle($point[0], $point[1], 2, 0, 360, 'D', $line);
|
||||
}
|
||||
|
||||
// print label for each point
|
||||
if ((isset($label) && trim($label) != '') && ($points_arr[0][0] != '' && $points_arr[0][1] != '')) {
|
||||
$pdf->setXY($points_arr[0][0], $points_arr[0][1]);
|
||||
$pdf->setFontSize(5);
|
||||
$pdf->Cell(0, 0, trim($label));
|
||||
}
|
||||
|
||||
return $pdf;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares and returns the code related to a row in the GIS dataset as SVG.
|
||||
*
|
||||
* @param string $spatial GIS MULTIPOINT object
|
||||
* @param string $label Label for the GIS MULTIPOINT object
|
||||
* @param string $point_color Color for the GIS MULTIPOINT object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string the code related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsSvg($spatial, $label, $point_color, array $scale_data)
|
||||
{
|
||||
$point_options = [
|
||||
'name' => $label,
|
||||
'class' => 'multipoint vector',
|
||||
'fill' => 'white',
|
||||
'stroke' => $point_color,
|
||||
'stroke-width' => 2,
|
||||
];
|
||||
|
||||
// Trim to remove leading 'MULTIPOINT(' and trailing ')'
|
||||
$multipoint = mb_substr($spatial, 11, -1);
|
||||
$points_arr = $this->extractPoints($multipoint, $scale_data);
|
||||
|
||||
$row = '';
|
||||
foreach ($points_arr as $point) {
|
||||
if (((float) $point[0]) === 0.0 || ((float) $point[1]) === 0.0) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$row .= '<circle cx="' . $point[0] . '" cy="'
|
||||
. $point[1] . '" r="3"';
|
||||
$point_options['id'] = $label . $this->getRandomId();
|
||||
foreach ($point_options as $option => $val) {
|
||||
$row .= ' ' . $option . '="' . trim((string) $val) . '"';
|
||||
}
|
||||
|
||||
$row .= '/>';
|
||||
}
|
||||
|
||||
return $row;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares JavaScript related to a row in the GIS dataset
|
||||
* to visualize it with OpenLayers.
|
||||
*
|
||||
* @param string $spatial GIS MULTIPOINT object
|
||||
* @param int $srid Spatial reference ID
|
||||
* @param string $label Label for the GIS MULTIPOINT object
|
||||
* @param array $point_color Color for the GIS MULTIPOINT object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string JavaScript related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsOl(
|
||||
$spatial,
|
||||
int $srid,
|
||||
$label,
|
||||
$point_color,
|
||||
array $scale_data
|
||||
) {
|
||||
$fill_style = ['color' => 'white'];
|
||||
$stroke_style = [
|
||||
'color' => $point_color,
|
||||
'width' => 2,
|
||||
];
|
||||
$result = 'var fill = new ol.style.Fill(' . json_encode($fill_style) . ');'
|
||||
. 'var stroke = new ol.style.Stroke(' . json_encode($stroke_style) . ');'
|
||||
. 'var style = new ol.style.Style({'
|
||||
. 'image: new ol.style.Circle({'
|
||||
. 'fill: fill,'
|
||||
. 'stroke: stroke,'
|
||||
. 'radius: 3'
|
||||
. '}),'
|
||||
. 'fill: fill,'
|
||||
. 'stroke: stroke';
|
||||
|
||||
if (trim($label) !== '') {
|
||||
$text_style = [
|
||||
'text' => trim($label),
|
||||
'offsetY' => -9,
|
||||
];
|
||||
$result .= ',text: new ol.style.Text(' . json_encode($text_style) . ')';
|
||||
}
|
||||
|
||||
$result .= '});';
|
||||
|
||||
if ($srid === 0) {
|
||||
$srid = 4326;
|
||||
}
|
||||
|
||||
$result .= $this->getBoundsForOl($srid, $scale_data);
|
||||
|
||||
// Trim to remove leading 'MULTIPOINT(' and trailing ')'
|
||||
$multipoint = mb_substr($spatial, 11, -1);
|
||||
$points_arr = $this->extractPoints($multipoint, null);
|
||||
|
||||
return $result . 'var multiPoint = new ol.geom.MultiPoint('
|
||||
. $this->getPointsArrayForOpenLayers($points_arr, $srid) . ');'
|
||||
. 'var feature = new ol.Feature({geometry: multiPoint});'
|
||||
. 'feature.setStyle(style);'
|
||||
. 'vectorLayer.addFeature(feature);';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate the WKT with the set of parameters passed by the GIS editor.
|
||||
*
|
||||
* @param array $gis_data GIS data
|
||||
* @param int $index Index into the parameter object
|
||||
* @param string|null $empty Multipoint does not adhere to this
|
||||
*
|
||||
* @return string WKT with the set of parameters passed by the GIS editor
|
||||
*/
|
||||
public function generateWkt(array $gis_data, $index, $empty = '')
|
||||
{
|
||||
$no_of_points = $gis_data[$index]['MULTIPOINT']['no_of_points'] ?? 1;
|
||||
if ($no_of_points < 1) {
|
||||
$no_of_points = 1;
|
||||
}
|
||||
|
||||
$wkt = 'MULTIPOINT(';
|
||||
for ($i = 0; $i < $no_of_points; $i++) {
|
||||
$wkt .= (isset($gis_data[$index]['MULTIPOINT'][$i]['x'])
|
||||
&& trim((string) $gis_data[$index]['MULTIPOINT'][$i]['x']) != ''
|
||||
? $gis_data[$index]['MULTIPOINT'][$i]['x'] : '')
|
||||
. ' ' . (isset($gis_data[$index]['MULTIPOINT'][$i]['y'])
|
||||
&& trim((string) $gis_data[$index]['MULTIPOINT'][$i]['y']) != ''
|
||||
? $gis_data[$index]['MULTIPOINT'][$i]['y'] : '') . ',';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
|
||||
return $wkt . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate the WKT for the data from ESRI shape files.
|
||||
*
|
||||
* @param array $row_data GIS data
|
||||
*
|
||||
* @return string the WKT for the data from ESRI shape files
|
||||
*/
|
||||
public function getShape(array $row_data)
|
||||
{
|
||||
$wkt = 'MULTIPOINT(';
|
||||
for ($i = 0; $i < $row_data['numpoints']; $i++) {
|
||||
$wkt .= $row_data['points'][$i]['x'] . ' '
|
||||
. $row_data['points'][$i]['y'] . ',';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
|
||||
return $wkt . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate parameters for the GIS data editor from the value of the GIS column.
|
||||
*
|
||||
* @param string $value Value of the GIS column
|
||||
* @param int $index Index of the geometry
|
||||
*
|
||||
* @return array params for the GIS data editor from the value of the GIS column
|
||||
*/
|
||||
public function generateParams($value, $index = -1)
|
||||
{
|
||||
$params = [];
|
||||
if ($index == -1) {
|
||||
$index = 0;
|
||||
$data = GisGeometry::generateParams($value);
|
||||
$params['srid'] = $data['srid'];
|
||||
$wkt = $data['wkt'];
|
||||
} else {
|
||||
$params[$index]['gis_type'] = 'MULTIPOINT';
|
||||
$wkt = $value;
|
||||
}
|
||||
|
||||
// Trim to remove leading 'MULTIPOINT(' and trailing ')'
|
||||
$points = mb_substr($wkt, 11, -1);
|
||||
$points_arr = $this->extractPoints($points, null);
|
||||
|
||||
$no_of_points = count($points_arr);
|
||||
$params[$index]['MULTIPOINT']['no_of_points'] = $no_of_points;
|
||||
for ($i = 0; $i < $no_of_points; $i++) {
|
||||
$params[$index]['MULTIPOINT'][$i]['x'] = $points_arr[$i][0];
|
||||
$params[$index]['MULTIPOINT'][$i]['y'] = $points_arr[$i][1];
|
||||
}
|
||||
|
||||
return $params;
|
||||
}
|
||||
|
||||
/**
|
||||
* Overridden to make sure that only the points having valid values
|
||||
* for x and y coordinates are added.
|
||||
*
|
||||
* @param array $points_arr x and y coordinates for each point
|
||||
* @param int $srid spatial reference id
|
||||
*
|
||||
* @return string JavaScript for adding an array of points to OpenLayers
|
||||
*/
|
||||
protected function getPointsArrayForOpenLayers(array $points_arr, int $srid)
|
||||
{
|
||||
$ol_array = 'new Array(';
|
||||
foreach ($points_arr as $point) {
|
||||
if ($point[0] == '' || $point[1] == '') {
|
||||
continue;
|
||||
}
|
||||
|
||||
$ol_array .= $this->getPointForOpenLayers($point, $srid) . '.getCoordinates(), ';
|
||||
}
|
||||
|
||||
if (mb_substr($ol_array, -2) === ', ') {
|
||||
$ol_array = mb_substr($ol_array, 0, -2);
|
||||
}
|
||||
|
||||
return $ol_array . ')';
|
||||
}
|
||||
}
|
||||
575
admin/phpMyAdmin/libraries/classes/Gis/GisMultiPolygon.php
Normal file
575
admin/phpMyAdmin/libraries/classes/Gis/GisMultiPolygon.php
Normal file
|
|
@ -0,0 +1,575 @@
|
|||
<?php
|
||||
/**
|
||||
* Handles actions related to GIS MULTIPOLYGON objects
|
||||
*/
|
||||
|
||||
declare(strict_types=1);
|
||||
|
||||
namespace PhpMyAdmin\Gis;
|
||||
|
||||
use PhpMyAdmin\Image\ImageWrapper;
|
||||
use TCPDF;
|
||||
|
||||
use function array_merge;
|
||||
use function array_slice;
|
||||
use function count;
|
||||
use function explode;
|
||||
use function hexdec;
|
||||
use function json_encode;
|
||||
use function mb_substr;
|
||||
use function round;
|
||||
use function str_contains;
|
||||
use function trim;
|
||||
|
||||
/**
|
||||
* Handles actions related to GIS MULTIPOLYGON objects
|
||||
*/
|
||||
class GisMultiPolygon extends GisGeometry
|
||||
{
|
||||
/** @var self */
|
||||
private static $instance;
|
||||
|
||||
/**
|
||||
* A private constructor; prevents direct creation of object.
|
||||
*/
|
||||
private function __construct()
|
||||
{
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the singleton.
|
||||
*
|
||||
* @return GisMultiPolygon the singleton
|
||||
*/
|
||||
public static function singleton()
|
||||
{
|
||||
if (! isset(self::$instance)) {
|
||||
self::$instance = new GisMultiPolygon();
|
||||
}
|
||||
|
||||
return self::$instance;
|
||||
}
|
||||
|
||||
/**
|
||||
* Scales each row.
|
||||
*
|
||||
* @param string $spatial spatial data of a row
|
||||
*
|
||||
* @return array an array containing the min, max values for x and y coordinates
|
||||
*/
|
||||
public function scaleRow($spatial)
|
||||
{
|
||||
$min_max = [];
|
||||
|
||||
// Trim to remove leading 'MULTIPOLYGON(((' and trailing ')))'
|
||||
$multipolygon = mb_substr($spatial, 15, -3);
|
||||
// Separate each polygon
|
||||
$polygons = explode(')),((', $multipolygon);
|
||||
|
||||
foreach ($polygons as $polygon) {
|
||||
// If the polygon doesn't have an inner ring, use polygon itself
|
||||
if (! str_contains($polygon, '),(')) {
|
||||
$ring = $polygon;
|
||||
} else {
|
||||
// Separate outer ring and use it to determine min-max
|
||||
$parts = explode('),(', $polygon);
|
||||
$ring = $parts[0];
|
||||
}
|
||||
|
||||
$min_max = $this->setMinMax($ring, $min_max);
|
||||
}
|
||||
|
||||
return $min_max;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the PNG image object, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS POLYGON object
|
||||
* @param string|null $label Label for the GIS POLYGON object
|
||||
* @param string $fill_color Color for the GIS POLYGON object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*/
|
||||
public function prepareRowAsPng(
|
||||
$spatial,
|
||||
?string $label,
|
||||
$fill_color,
|
||||
array $scale_data,
|
||||
ImageWrapper $image
|
||||
): ImageWrapper {
|
||||
// allocate colors
|
||||
$black = $image->colorAllocate(0, 0, 0);
|
||||
$red = (int) hexdec(mb_substr($fill_color, 1, 2));
|
||||
$green = (int) hexdec(mb_substr($fill_color, 3, 2));
|
||||
$blue = (int) hexdec(mb_substr($fill_color, 4, 2));
|
||||
$color = $image->colorAllocate($red, $green, $blue);
|
||||
|
||||
$label = trim($label ?? '');
|
||||
|
||||
// Trim to remove leading 'MULTIPOLYGON(((' and trailing ')))'
|
||||
$multipolygon = mb_substr($spatial, 15, -3);
|
||||
// Separate each polygon
|
||||
$polygons = explode(')),((', $multipolygon);
|
||||
|
||||
$first_poly = true;
|
||||
foreach ($polygons as $polygon) {
|
||||
// If the polygon doesn't have an inner polygon
|
||||
if (! str_contains($polygon, '),(')) {
|
||||
$points_arr = $this->extractPoints($polygon, $scale_data, true);
|
||||
} else {
|
||||
// Separate outer and inner polygons
|
||||
$parts = explode('),(', $polygon);
|
||||
$outer = $parts[0];
|
||||
$inner = array_slice($parts, 1);
|
||||
|
||||
$points_arr = $this->extractPoints($outer, $scale_data, true);
|
||||
|
||||
foreach ($inner as $inner_poly) {
|
||||
$points_arr = array_merge(
|
||||
$points_arr,
|
||||
$this->extractPoints($inner_poly, $scale_data, true)
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
// draw polygon
|
||||
$image->filledPolygon($points_arr, $color);
|
||||
// mark label point if applicable
|
||||
if ($label !== '' && $first_poly) {
|
||||
$label_point = [
|
||||
$points_arr[2],
|
||||
$points_arr[3],
|
||||
];
|
||||
}
|
||||
|
||||
$first_poly = false;
|
||||
}
|
||||
|
||||
// print label if applicable
|
||||
if (isset($label_point)) {
|
||||
$image->string(
|
||||
1,
|
||||
(int) round($label_point[0]),
|
||||
(int) round($label_point[1]),
|
||||
$label,
|
||||
$black
|
||||
);
|
||||
}
|
||||
|
||||
return $image;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the TCPDF instance, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS MULTIPOLYGON object
|
||||
* @param string|null $label Label for the GIS MULTIPOLYGON object
|
||||
* @param string $fill_color Color for the GIS MULTIPOLYGON object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
* @param TCPDF $pdf TCPDF instance
|
||||
*
|
||||
* @return TCPDF the modified TCPDF instance
|
||||
*/
|
||||
public function prepareRowAsPdf($spatial, ?string $label, $fill_color, array $scale_data, $pdf)
|
||||
{
|
||||
// allocate colors
|
||||
$red = hexdec(mb_substr($fill_color, 1, 2));
|
||||
$green = hexdec(mb_substr($fill_color, 3, 2));
|
||||
$blue = hexdec(mb_substr($fill_color, 4, 2));
|
||||
$color = [
|
||||
$red,
|
||||
$green,
|
||||
$blue,
|
||||
];
|
||||
|
||||
$label = trim($label ?? '');
|
||||
|
||||
// Trim to remove leading 'MULTIPOLYGON(((' and trailing ')))'
|
||||
$multipolygon = mb_substr($spatial, 15, -3);
|
||||
// Separate each polygon
|
||||
$polygons = explode(')),((', $multipolygon);
|
||||
|
||||
$first_poly = true;
|
||||
foreach ($polygons as $polygon) {
|
||||
// If the polygon doesn't have an inner polygon
|
||||
if (! str_contains($polygon, '),(')) {
|
||||
$points_arr = $this->extractPoints($polygon, $scale_data, true);
|
||||
} else {
|
||||
// Separate outer and inner polygons
|
||||
$parts = explode('),(', $polygon);
|
||||
$outer = $parts[0];
|
||||
$inner = array_slice($parts, 1);
|
||||
|
||||
$points_arr = $this->extractPoints($outer, $scale_data, true);
|
||||
|
||||
foreach ($inner as $inner_poly) {
|
||||
$points_arr = array_merge(
|
||||
$points_arr,
|
||||
$this->extractPoints($inner_poly, $scale_data, true)
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
// draw polygon
|
||||
$pdf->Polygon($points_arr, 'F*', [], $color, true);
|
||||
// mark label point if applicable
|
||||
if ($label !== '' && $first_poly) {
|
||||
$label_point = [
|
||||
$points_arr[2],
|
||||
$points_arr[3],
|
||||
];
|
||||
}
|
||||
|
||||
$first_poly = false;
|
||||
}
|
||||
|
||||
// print label if applicable
|
||||
if (isset($label_point)) {
|
||||
$pdf->setXY($label_point[0], $label_point[1]);
|
||||
$pdf->setFontSize(5);
|
||||
$pdf->Cell(0, 0, $label);
|
||||
}
|
||||
|
||||
return $pdf;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares and returns the code related to a row in the GIS dataset as SVG.
|
||||
*
|
||||
* @param string $spatial GIS MULTIPOLYGON object
|
||||
* @param string $label Label for the GIS MULTIPOLYGON object
|
||||
* @param string $fill_color Color for the GIS MULTIPOLYGON object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string the code related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsSvg($spatial, $label, $fill_color, array $scale_data)
|
||||
{
|
||||
$polygon_options = [
|
||||
'name' => $label,
|
||||
'class' => 'multipolygon vector',
|
||||
'stroke' => 'black',
|
||||
'stroke-width' => 0.5,
|
||||
'fill' => $fill_color,
|
||||
'fill-rule' => 'evenodd',
|
||||
'fill-opacity' => 0.8,
|
||||
];
|
||||
|
||||
$row = '';
|
||||
|
||||
// Trim to remove leading 'MULTIPOLYGON(((' and trailing ')))'
|
||||
$multipolygon = mb_substr($spatial, 15, -3);
|
||||
// Separate each polygon
|
||||
$polygons = explode(')),((', $multipolygon);
|
||||
|
||||
foreach ($polygons as $polygon) {
|
||||
$row .= '<path d="';
|
||||
|
||||
// If the polygon doesn't have an inner polygon
|
||||
if (! str_contains($polygon, '),(')) {
|
||||
$row .= $this->drawPath($polygon, $scale_data);
|
||||
} else {
|
||||
// Separate outer and inner polygons
|
||||
$parts = explode('),(', $polygon);
|
||||
$outer = $parts[0];
|
||||
$inner = array_slice($parts, 1);
|
||||
|
||||
$row .= $this->drawPath($outer, $scale_data);
|
||||
|
||||
foreach ($inner as $inner_poly) {
|
||||
$row .= $this->drawPath($inner_poly, $scale_data);
|
||||
}
|
||||
}
|
||||
|
||||
$polygon_options['id'] = $label . $this->getRandomId();
|
||||
$row .= '"';
|
||||
foreach ($polygon_options as $option => $val) {
|
||||
$row .= ' ' . $option . '="' . trim((string) $val) . '"';
|
||||
}
|
||||
|
||||
$row .= '/>';
|
||||
}
|
||||
|
||||
return $row;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares JavaScript related to a row in the GIS dataset
|
||||
* to visualize it with OpenLayers.
|
||||
*
|
||||
* @param string $spatial GIS MULTIPOLYGON object
|
||||
* @param int $srid Spatial reference ID
|
||||
* @param string $label Label for the GIS MULTIPOLYGON object
|
||||
* @param array $fill_color Color for the GIS MULTIPOLYGON object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string JavaScript related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsOl($spatial, int $srid, $label, $fill_color, array $scale_data)
|
||||
{
|
||||
$fill_color[] = 0.8;
|
||||
$fill_style = ['color' => $fill_color];
|
||||
$stroke_style = [
|
||||
'color' => [0,0,0],
|
||||
'width' => 0.5,
|
||||
];
|
||||
$row = 'var style = new ol.style.Style({'
|
||||
. 'fill: new ol.style.Fill(' . json_encode($fill_style) . '),'
|
||||
. 'stroke: new ol.style.Stroke(' . json_encode($stroke_style) . ')';
|
||||
|
||||
if (trim($label) !== '') {
|
||||
$text_style = ['text' => trim($label)];
|
||||
$row .= ',text: new ol.style.Text(' . json_encode($text_style) . ')';
|
||||
}
|
||||
|
||||
$row .= '});';
|
||||
|
||||
if ($srid === 0) {
|
||||
$srid = 4326;
|
||||
}
|
||||
|
||||
$row .= $this->getBoundsForOl($srid, $scale_data);
|
||||
|
||||
// Trim to remove leading 'MULTIPOLYGON(((' and trailing ')))'
|
||||
$multipolygon = mb_substr($spatial, 15, -3);
|
||||
// Separate each polygon
|
||||
$polygons = explode(')),((', $multipolygon);
|
||||
|
||||
return $row . $this->getPolygonArrayForOpenLayers($polygons, $srid)
|
||||
. 'var multiPolygon = new ol.geom.MultiPolygon(polygonArray);'
|
||||
. 'var feature = new ol.Feature(multiPolygon);'
|
||||
. 'feature.setStyle(style);'
|
||||
. 'vectorLayer.addFeature(feature);';
|
||||
}
|
||||
|
||||
/**
|
||||
* Draws a ring of the polygon using SVG path element.
|
||||
*
|
||||
* @param string $polygon The ring
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string the code to draw the ring
|
||||
*/
|
||||
private function drawPath($polygon, array $scale_data)
|
||||
{
|
||||
$points_arr = $this->extractPoints($polygon, $scale_data);
|
||||
|
||||
$row = ' M ' . $points_arr[0][0] . ', ' . $points_arr[0][1];
|
||||
$other_points = array_slice($points_arr, 1, count($points_arr) - 2);
|
||||
foreach ($other_points as $point) {
|
||||
$row .= ' L ' . $point[0] . ', ' . $point[1];
|
||||
}
|
||||
|
||||
$row .= ' Z ';
|
||||
|
||||
return $row;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate the WKT with the set of parameters passed by the GIS editor.
|
||||
*
|
||||
* @param array $gis_data GIS data
|
||||
* @param int $index Index into the parameter object
|
||||
* @param string|null $empty Value for empty points
|
||||
*
|
||||
* @return string WKT with the set of parameters passed by the GIS editor
|
||||
*/
|
||||
public function generateWkt(array $gis_data, $index, $empty = '')
|
||||
{
|
||||
$data_row = $gis_data[$index]['MULTIPOLYGON'];
|
||||
|
||||
$no_of_polygons = $data_row['no_of_polygons'] ?? 1;
|
||||
if ($no_of_polygons < 1) {
|
||||
$no_of_polygons = 1;
|
||||
}
|
||||
|
||||
$wkt = 'MULTIPOLYGON(';
|
||||
for ($k = 0; $k < $no_of_polygons; $k++) {
|
||||
$no_of_lines = $data_row[$k]['no_of_lines'] ?? 1;
|
||||
if ($no_of_lines < 1) {
|
||||
$no_of_lines = 1;
|
||||
}
|
||||
|
||||
$wkt .= '(';
|
||||
for ($i = 0; $i < $no_of_lines; $i++) {
|
||||
$no_of_points = $data_row[$k][$i]['no_of_points'] ?? 4;
|
||||
if ($no_of_points < 4) {
|
||||
$no_of_points = 4;
|
||||
}
|
||||
|
||||
$wkt .= '(';
|
||||
for ($j = 0; $j < $no_of_points; $j++) {
|
||||
$wkt .= (isset($data_row[$k][$i][$j]['x'])
|
||||
&& trim((string) $data_row[$k][$i][$j]['x']) != ''
|
||||
? $data_row[$k][$i][$j]['x'] : $empty)
|
||||
. ' ' . (isset($data_row[$k][$i][$j]['y'])
|
||||
&& trim((string) $data_row[$k][$i][$j]['y']) != ''
|
||||
? $data_row[$k][$i][$j]['y'] : $empty) . ',';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
$wkt .= '),';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
$wkt .= '),';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
|
||||
return $wkt . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate the WKT for the data from ESRI shape files.
|
||||
*
|
||||
* @param array $row_data GIS data
|
||||
*
|
||||
* @return string the WKT for the data from ESRI shape files
|
||||
*/
|
||||
public function getShape(array $row_data)
|
||||
{
|
||||
// Determines whether each line ring is an inner ring or an outer ring.
|
||||
// If it's an inner ring get a point on the surface which can be used to
|
||||
// correctly classify inner rings to their respective outer rings.
|
||||
foreach ($row_data['parts'] as $i => $ring) {
|
||||
$row_data['parts'][$i]['isOuter'] = GisPolygon::isOuterRing($ring['points']);
|
||||
}
|
||||
|
||||
// Find points on surface for inner rings
|
||||
foreach ($row_data['parts'] as $i => $ring) {
|
||||
if ($ring['isOuter']) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$row_data['parts'][$i]['pointOnSurface'] = GisPolygon::getPointOnSurface($ring['points']);
|
||||
}
|
||||
|
||||
// Classify inner rings to their respective outer rings.
|
||||
foreach ($row_data['parts'] as $j => $ring1) {
|
||||
if ($ring1['isOuter']) {
|
||||
continue;
|
||||
}
|
||||
|
||||
foreach ($row_data['parts'] as $k => $ring2) {
|
||||
if (! $ring2['isOuter']) {
|
||||
continue;
|
||||
}
|
||||
|
||||
// If the pointOnSurface of the inner ring
|
||||
// is also inside the outer ring
|
||||
if (! GisPolygon::isPointInsidePolygon($ring1['pointOnSurface'], $ring2['points'])) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (! isset($ring2['inner'])) {
|
||||
$row_data['parts'][$k]['inner'] = [];
|
||||
}
|
||||
|
||||
$row_data['parts'][$k]['inner'][] = $j;
|
||||
}
|
||||
}
|
||||
|
||||
$wkt = 'MULTIPOLYGON(';
|
||||
// for each polygon
|
||||
foreach ($row_data['parts'] as $ring) {
|
||||
if (! $ring['isOuter']) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$wkt .= '('; // start of polygon
|
||||
|
||||
$wkt .= '('; // start of outer ring
|
||||
foreach ($ring['points'] as $point) {
|
||||
$wkt .= $point['x'] . ' ' . $point['y'] . ',';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
$wkt .= ')'; // end of outer ring
|
||||
|
||||
// inner rings if any
|
||||
if (isset($ring['inner'])) {
|
||||
foreach ($ring['inner'] as $j) {
|
||||
$wkt .= ',('; // start of inner ring
|
||||
foreach ($row_data['parts'][$j]['points'] as $innerPoint) {
|
||||
$wkt .= $innerPoint['x'] . ' ' . $innerPoint['y'] . ',';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
$wkt .= ')'; // end of inner ring
|
||||
}
|
||||
}
|
||||
|
||||
$wkt .= '),'; // end of polygon
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
|
||||
return $wkt . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate parameters for the GIS data editor from the value of the GIS column.
|
||||
*
|
||||
* @param string $value Value of the GIS column
|
||||
* @param int $index Index of the geometry
|
||||
*
|
||||
* @return array params for the GIS data editor from the value of the GIS column
|
||||
*/
|
||||
public function generateParams($value, $index = -1)
|
||||
{
|
||||
$params = [];
|
||||
if ($index == -1) {
|
||||
$index = 0;
|
||||
$data = GisGeometry::generateParams($value);
|
||||
$params['srid'] = $data['srid'];
|
||||
$wkt = $data['wkt'];
|
||||
} else {
|
||||
$params[$index]['gis_type'] = 'MULTIPOLYGON';
|
||||
$wkt = $value;
|
||||
}
|
||||
|
||||
// Trim to remove leading 'MULTIPOLYGON(((' and trailing ')))'
|
||||
$multipolygon = mb_substr($wkt, 15, -3);
|
||||
// Separate each polygon
|
||||
$polygons = explode(')),((', $multipolygon);
|
||||
|
||||
$param_row =& $params[$index]['MULTIPOLYGON'];
|
||||
$param_row['no_of_polygons'] = count($polygons);
|
||||
|
||||
$k = 0;
|
||||
foreach ($polygons as $polygon) {
|
||||
// If the polygon doesn't have an inner polygon
|
||||
if (! str_contains($polygon, '),(')) {
|
||||
$param_row[$k]['no_of_lines'] = 1;
|
||||
$points_arr = $this->extractPoints($polygon, null);
|
||||
$no_of_points = count($points_arr);
|
||||
$param_row[$k][0]['no_of_points'] = $no_of_points;
|
||||
for ($i = 0; $i < $no_of_points; $i++) {
|
||||
$param_row[$k][0][$i]['x'] = $points_arr[$i][0];
|
||||
$param_row[$k][0][$i]['y'] = $points_arr[$i][1];
|
||||
}
|
||||
} else {
|
||||
// Separate outer and inner polygons
|
||||
$parts = explode('),(', $polygon);
|
||||
$param_row[$k]['no_of_lines'] = count($parts);
|
||||
$j = 0;
|
||||
foreach ($parts as $ring) {
|
||||
$points_arr = $this->extractPoints($ring, null);
|
||||
$no_of_points = count($points_arr);
|
||||
$param_row[$k][$j]['no_of_points'] = $no_of_points;
|
||||
for ($i = 0; $i < $no_of_points; $i++) {
|
||||
$param_row[$k][$j][$i]['x'] = $points_arr[$i][0];
|
||||
$param_row[$k][$j][$i]['y'] = $points_arr[$i][1];
|
||||
}
|
||||
|
||||
$j++;
|
||||
}
|
||||
}
|
||||
|
||||
$k++;
|
||||
}
|
||||
|
||||
return $params;
|
||||
}
|
||||
}
|
||||
336
admin/phpMyAdmin/libraries/classes/Gis/GisPoint.php
Normal file
336
admin/phpMyAdmin/libraries/classes/Gis/GisPoint.php
Normal file
|
|
@ -0,0 +1,336 @@
|
|||
<?php
|
||||
/**
|
||||
* Handles actions related to GIS POINT objects
|
||||
*/
|
||||
|
||||
declare(strict_types=1);
|
||||
|
||||
namespace PhpMyAdmin\Gis;
|
||||
|
||||
use PhpMyAdmin\Image\ImageWrapper;
|
||||
use TCPDF;
|
||||
|
||||
use function hexdec;
|
||||
use function json_encode;
|
||||
use function mb_substr;
|
||||
use function round;
|
||||
use function trim;
|
||||
|
||||
/**
|
||||
* Handles actions related to GIS POINT objects
|
||||
*/
|
||||
class GisPoint extends GisGeometry
|
||||
{
|
||||
/** @var self */
|
||||
private static $instance;
|
||||
|
||||
/**
|
||||
* A private constructor; prevents direct creation of object.
|
||||
*/
|
||||
private function __construct()
|
||||
{
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the singleton.
|
||||
*
|
||||
* @return GisPoint the singleton
|
||||
*/
|
||||
public static function singleton()
|
||||
{
|
||||
if (! isset(self::$instance)) {
|
||||
self::$instance = new GisPoint();
|
||||
}
|
||||
|
||||
return self::$instance;
|
||||
}
|
||||
|
||||
/**
|
||||
* Scales each row.
|
||||
*
|
||||
* @param string $spatial spatial data of a row
|
||||
*
|
||||
* @return array an array containing the min, max values for x and y coordinates
|
||||
*/
|
||||
public function scaleRow($spatial)
|
||||
{
|
||||
// Trim to remove leading 'POINT(' and trailing ')'
|
||||
$point = mb_substr($spatial, 6, -1);
|
||||
|
||||
return $this->setMinMax($point, []);
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the PNG image object, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS POLYGON object
|
||||
* @param string|null $label Label for the GIS POLYGON object
|
||||
* @param string $point_color Color for the GIS POLYGON object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*/
|
||||
public function prepareRowAsPng(
|
||||
$spatial,
|
||||
?string $label,
|
||||
$point_color,
|
||||
array $scale_data,
|
||||
ImageWrapper $image
|
||||
): ImageWrapper {
|
||||
// allocate colors
|
||||
$black = $image->colorAllocate(0, 0, 0);
|
||||
$red = (int) hexdec(mb_substr($point_color, 1, 2));
|
||||
$green = (int) hexdec(mb_substr($point_color, 3, 2));
|
||||
$blue = (int) hexdec(mb_substr($point_color, 4, 2));
|
||||
$color = $image->colorAllocate($red, $green, $blue);
|
||||
|
||||
$label = trim($label ?? '');
|
||||
|
||||
// Trim to remove leading 'POINT(' and trailing ')'
|
||||
$point = mb_substr($spatial, 6, -1);
|
||||
$points_arr = $this->extractPoints($point, $scale_data);
|
||||
|
||||
// draw a small circle to mark the point
|
||||
if ($points_arr[0][0] != '' && $points_arr[0][1] != '') {
|
||||
$image->arc(
|
||||
(int) round($points_arr[0][0]),
|
||||
(int) round($points_arr[0][1]),
|
||||
7,
|
||||
7,
|
||||
0,
|
||||
360,
|
||||
$color
|
||||
);
|
||||
// print label if applicable
|
||||
if ($label !== '') {
|
||||
$image->string(
|
||||
1,
|
||||
(int) round($points_arr[0][0]),
|
||||
(int) round($points_arr[0][1]),
|
||||
$label,
|
||||
$black
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
return $image;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the TCPDF instance, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS POINT object
|
||||
* @param string|null $label Label for the GIS POINT object
|
||||
* @param string $point_color Color for the GIS POINT object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
* @param TCPDF $pdf TCPDF instance
|
||||
*
|
||||
* @return TCPDF the modified TCPDF instance
|
||||
*/
|
||||
public function prepareRowAsPdf(
|
||||
$spatial,
|
||||
?string $label,
|
||||
$point_color,
|
||||
array $scale_data,
|
||||
$pdf
|
||||
) {
|
||||
// allocate colors
|
||||
$red = hexdec(mb_substr($point_color, 1, 2));
|
||||
$green = hexdec(mb_substr($point_color, 3, 2));
|
||||
$blue = hexdec(mb_substr($point_color, 4, 2));
|
||||
$line = [
|
||||
'width' => 1.25,
|
||||
'color' => [
|
||||
$red,
|
||||
$green,
|
||||
$blue,
|
||||
],
|
||||
];
|
||||
|
||||
$label = trim($label ?? '');
|
||||
|
||||
// Trim to remove leading 'POINT(' and trailing ')'
|
||||
$point = mb_substr($spatial, 6, -1);
|
||||
$points_arr = $this->extractPoints($point, $scale_data);
|
||||
|
||||
// draw a small circle to mark the point
|
||||
if ($points_arr[0][0] != '' && $points_arr[0][1] != '') {
|
||||
$pdf->Circle($points_arr[0][0], $points_arr[0][1], 2, 0, 360, 'D', $line);
|
||||
// print label if applicable
|
||||
if ($label !== '') {
|
||||
$pdf->setXY($points_arr[0][0], $points_arr[0][1]);
|
||||
$pdf->setFontSize(5);
|
||||
$pdf->Cell(0, 0, $label);
|
||||
}
|
||||
}
|
||||
|
||||
return $pdf;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares and returns the code related to a row in the GIS dataset as SVG.
|
||||
*
|
||||
* @param string $spatial GIS POINT object
|
||||
* @param string $label Label for the GIS POINT object
|
||||
* @param string $point_color Color for the GIS POINT object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string the code related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsSvg($spatial, $label, $point_color, array $scale_data)
|
||||
{
|
||||
$point_options = [
|
||||
'name' => $label,
|
||||
'id' => $label . $this->getRandomId(),
|
||||
'class' => 'point vector',
|
||||
'fill' => 'white',
|
||||
'stroke' => $point_color,
|
||||
'stroke-width' => 2,
|
||||
];
|
||||
|
||||
// Trim to remove leading 'POINT(' and trailing ')'
|
||||
$point = mb_substr($spatial, 6, -1);
|
||||
$points_arr = $this->extractPoints($point, $scale_data);
|
||||
|
||||
$row = '';
|
||||
if (((float) $points_arr[0][0]) !== 0.0 && ((float) $points_arr[0][1]) !== 0.0) {
|
||||
$row .= '<circle cx="' . $points_arr[0][0]
|
||||
. '" cy="' . $points_arr[0][1] . '" r="3"';
|
||||
foreach ($point_options as $option => $val) {
|
||||
$row .= ' ' . $option . '="' . trim((string) $val) . '"';
|
||||
}
|
||||
|
||||
$row .= '/>';
|
||||
}
|
||||
|
||||
return $row;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares JavaScript related to a row in the GIS dataset
|
||||
* to visualize it with OpenLayers.
|
||||
*
|
||||
* @param string $spatial GIS POINT object
|
||||
* @param int $srid Spatial reference ID
|
||||
* @param string $label Label for the GIS POINT object
|
||||
* @param array $point_color Color for the GIS POINT object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string JavaScript related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsOl(
|
||||
$spatial,
|
||||
int $srid,
|
||||
$label,
|
||||
$point_color,
|
||||
array $scale_data
|
||||
) {
|
||||
$fill_style = ['color' => 'white'];
|
||||
$stroke_style = [
|
||||
'color' => $point_color,
|
||||
'width' => 2,
|
||||
];
|
||||
$result = 'var fill = new ol.style.Fill(' . json_encode($fill_style) . ');'
|
||||
. 'var stroke = new ol.style.Stroke(' . json_encode($stroke_style) . ');'
|
||||
. 'var style = new ol.style.Style({'
|
||||
. 'image: new ol.style.Circle({'
|
||||
. 'fill: fill,'
|
||||
. 'stroke: stroke,'
|
||||
. 'radius: 3'
|
||||
. '}),'
|
||||
. 'fill: fill,'
|
||||
. 'stroke: stroke';
|
||||
|
||||
if (trim($label) !== '') {
|
||||
$text_style = [
|
||||
'text' => trim($label),
|
||||
'offsetY' => -9,
|
||||
];
|
||||
$result .= ',text: new ol.style.Text(' . json_encode($text_style) . ')';
|
||||
}
|
||||
|
||||
$result .= '});';
|
||||
|
||||
if ($srid === 0) {
|
||||
$srid = 4326;
|
||||
}
|
||||
|
||||
$result .= $this->getBoundsForOl($srid, $scale_data);
|
||||
|
||||
// Trim to remove leading 'POINT(' and trailing ')'
|
||||
$point = mb_substr($spatial, 6, -1);
|
||||
$points_arr = $this->extractPoints($point, null);
|
||||
|
||||
if ($points_arr[0][0] != '' && $points_arr[0][1] != '') {
|
||||
$result .= 'var point = new ol.Feature({geometry: '
|
||||
. $this->getPointForOpenLayers($points_arr[0], $srid) . '});'
|
||||
. 'point.setStyle(style);'
|
||||
. 'vectorLayer.addFeature(point);';
|
||||
}
|
||||
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate the WKT with the set of parameters passed by the GIS editor.
|
||||
*
|
||||
* @param array $gis_data GIS data
|
||||
* @param int $index Index into the parameter object
|
||||
* @param string|null $empty Point does not adhere to this parameter
|
||||
*
|
||||
* @return string WKT with the set of parameters passed by the GIS editor
|
||||
*/
|
||||
public function generateWkt(array $gis_data, $index, $empty = '')
|
||||
{
|
||||
return 'POINT('
|
||||
. (isset($gis_data[$index]['POINT']['x'])
|
||||
&& trim((string) $gis_data[$index]['POINT']['x']) != ''
|
||||
? $gis_data[$index]['POINT']['x'] : '')
|
||||
. ' '
|
||||
. (isset($gis_data[$index]['POINT']['y'])
|
||||
&& trim((string) $gis_data[$index]['POINT']['y']) != ''
|
||||
? $gis_data[$index]['POINT']['y'] : '') . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate the WKT for the data from ESRI shape files.
|
||||
*
|
||||
* @param array $row_data GIS data
|
||||
*
|
||||
* @return string the WKT for the data from ESRI shape files
|
||||
*/
|
||||
public function getShape(array $row_data)
|
||||
{
|
||||
return 'POINT(' . ($row_data['x'] ?? '')
|
||||
. ' ' . ($row_data['y'] ?? '') . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate parameters for the GIS data editor from the value of the GIS column.
|
||||
*
|
||||
* @param string $value of the GIS column
|
||||
* @param int $index of the geometry
|
||||
*
|
||||
* @return array params for the GIS data editor from the value of the GIS column
|
||||
*/
|
||||
public function generateParams($value, $index = -1)
|
||||
{
|
||||
$params = [];
|
||||
if ($index == -1) {
|
||||
$index = 0;
|
||||
$data = GisGeometry::generateParams($value);
|
||||
$params['srid'] = $data['srid'];
|
||||
$wkt = $data['wkt'];
|
||||
} else {
|
||||
$params[$index]['gis_type'] = 'POINT';
|
||||
$wkt = $value;
|
||||
}
|
||||
|
||||
// Trim to remove leading 'POINT(' and trailing ')'
|
||||
$point = mb_substr($wkt, 6, -1);
|
||||
$points_arr = $this->extractPoints($point, null);
|
||||
|
||||
$params[$index]['POINT']['x'] = $points_arr[0][0];
|
||||
$params[$index]['POINT']['y'] = $points_arr[0][1];
|
||||
|
||||
return $params;
|
||||
}
|
||||
}
|
||||
580
admin/phpMyAdmin/libraries/classes/Gis/GisPolygon.php
Normal file
580
admin/phpMyAdmin/libraries/classes/Gis/GisPolygon.php
Normal file
|
|
@ -0,0 +1,580 @@
|
|||
<?php
|
||||
/**
|
||||
* Handles actions related to GIS POLYGON objects
|
||||
*/
|
||||
|
||||
declare(strict_types=1);
|
||||
|
||||
namespace PhpMyAdmin\Gis;
|
||||
|
||||
use PhpMyAdmin\Image\ImageWrapper;
|
||||
use TCPDF;
|
||||
|
||||
use function array_merge;
|
||||
use function array_slice;
|
||||
use function count;
|
||||
use function explode;
|
||||
use function hexdec;
|
||||
use function json_encode;
|
||||
use function max;
|
||||
use function mb_substr;
|
||||
use function min;
|
||||
use function round;
|
||||
use function sqrt;
|
||||
use function str_contains;
|
||||
use function trim;
|
||||
|
||||
/**
|
||||
* Handles actions related to GIS POLYGON objects
|
||||
*/
|
||||
class GisPolygon extends GisGeometry
|
||||
{
|
||||
/** @var self */
|
||||
private static $instance;
|
||||
|
||||
/**
|
||||
* A private constructor; prevents direct creation of object.
|
||||
*/
|
||||
private function __construct()
|
||||
{
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the singleton.
|
||||
*
|
||||
* @return GisPolygon the singleton
|
||||
*/
|
||||
public static function singleton()
|
||||
{
|
||||
if (! isset(self::$instance)) {
|
||||
self::$instance = new GisPolygon();
|
||||
}
|
||||
|
||||
return self::$instance;
|
||||
}
|
||||
|
||||
/**
|
||||
* Scales each row.
|
||||
*
|
||||
* @param string $spatial spatial data of a row
|
||||
*
|
||||
* @return array an array containing the min, max values for x and y coordinates
|
||||
*/
|
||||
public function scaleRow($spatial)
|
||||
{
|
||||
// Trim to remove leading 'POLYGON((' and trailing '))'
|
||||
$polygon = mb_substr($spatial, 9, -2);
|
||||
|
||||
// If the polygon doesn't have an inner ring, use polygon itself
|
||||
if (! str_contains($polygon, '),(')) {
|
||||
$ring = $polygon;
|
||||
} else {
|
||||
// Separate outer ring and use it to determine min-max
|
||||
$parts = explode('),(', $polygon);
|
||||
$ring = $parts[0];
|
||||
}
|
||||
|
||||
return $this->setMinMax($ring, []);
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the PNG image object, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS POLYGON object
|
||||
* @param string|null $label Label for the GIS POLYGON object
|
||||
* @param string $fill_color Color for the GIS POLYGON object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*/
|
||||
public function prepareRowAsPng(
|
||||
$spatial,
|
||||
?string $label,
|
||||
$fill_color,
|
||||
array $scale_data,
|
||||
ImageWrapper $image
|
||||
): ImageWrapper {
|
||||
// allocate colors
|
||||
$black = $image->colorAllocate(0, 0, 0);
|
||||
$red = (int) hexdec(mb_substr($fill_color, 1, 2));
|
||||
$green = (int) hexdec(mb_substr($fill_color, 3, 2));
|
||||
$blue = (int) hexdec(mb_substr($fill_color, 4, 2));
|
||||
$color = $image->colorAllocate($red, $green, $blue);
|
||||
|
||||
$label = trim($label ?? '');
|
||||
|
||||
// Trim to remove leading 'POLYGON((' and trailing '))'
|
||||
$polygon = mb_substr($spatial, 9, -2);
|
||||
|
||||
// If the polygon doesn't have an inner polygon
|
||||
if (! str_contains($polygon, '),(')) {
|
||||
$points_arr = $this->extractPoints($polygon, $scale_data, true);
|
||||
} else {
|
||||
// Separate outer and inner polygons
|
||||
$parts = explode('),(', $polygon);
|
||||
$outer = $parts[0];
|
||||
$inner = array_slice($parts, 1);
|
||||
|
||||
$points_arr = $this->extractPoints($outer, $scale_data, true);
|
||||
|
||||
foreach ($inner as $inner_poly) {
|
||||
$points_arr = array_merge(
|
||||
$points_arr,
|
||||
$this->extractPoints($inner_poly, $scale_data, true)
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
// draw polygon
|
||||
$image->filledPolygon($points_arr, $color);
|
||||
// print label if applicable
|
||||
if ($label !== '') {
|
||||
$image->string(
|
||||
1,
|
||||
(int) round($points_arr[2]),
|
||||
(int) round($points_arr[3]),
|
||||
$label,
|
||||
$black
|
||||
);
|
||||
}
|
||||
|
||||
return $image;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds to the TCPDF instance, the data related to a row in the GIS dataset.
|
||||
*
|
||||
* @param string $spatial GIS POLYGON object
|
||||
* @param string|null $label Label for the GIS POLYGON object
|
||||
* @param string $fill_color Color for the GIS POLYGON object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
* @param TCPDF $pdf TCPDF instance
|
||||
*
|
||||
* @return TCPDF the modified TCPDF instance
|
||||
*/
|
||||
public function prepareRowAsPdf($spatial, ?string $label, $fill_color, array $scale_data, $pdf)
|
||||
{
|
||||
// allocate colors
|
||||
$red = hexdec(mb_substr($fill_color, 1, 2));
|
||||
$green = hexdec(mb_substr($fill_color, 3, 2));
|
||||
$blue = hexdec(mb_substr($fill_color, 4, 2));
|
||||
$color = [
|
||||
$red,
|
||||
$green,
|
||||
$blue,
|
||||
];
|
||||
|
||||
$label = trim($label ?? '');
|
||||
|
||||
// Trim to remove leading 'POLYGON((' and trailing '))'
|
||||
$polygon = mb_substr($spatial, 9, -2);
|
||||
|
||||
// If the polygon doesn't have an inner polygon
|
||||
if (! str_contains($polygon, '),(')) {
|
||||
$points_arr = $this->extractPoints($polygon, $scale_data, true);
|
||||
} else {
|
||||
// Separate outer and inner polygons
|
||||
$parts = explode('),(', $polygon);
|
||||
$outer = $parts[0];
|
||||
$inner = array_slice($parts, 1);
|
||||
|
||||
$points_arr = $this->extractPoints($outer, $scale_data, true);
|
||||
|
||||
foreach ($inner as $inner_poly) {
|
||||
$points_arr = array_merge(
|
||||
$points_arr,
|
||||
$this->extractPoints($inner_poly, $scale_data, true)
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
// draw polygon
|
||||
$pdf->Polygon($points_arr, 'F*', [], $color, true);
|
||||
// print label if applicable
|
||||
if ($label !== '') {
|
||||
$pdf->setXY($points_arr[2], $points_arr[3]);
|
||||
$pdf->setFontSize(5);
|
||||
$pdf->Cell(0, 0, $label);
|
||||
}
|
||||
|
||||
return $pdf;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares and returns the code related to a row in the GIS dataset as SVG.
|
||||
*
|
||||
* @param string $spatial GIS POLYGON object
|
||||
* @param string $label Label for the GIS POLYGON object
|
||||
* @param string $fill_color Color for the GIS POLYGON object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string the code related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsSvg($spatial, $label, $fill_color, array $scale_data)
|
||||
{
|
||||
$polygon_options = [
|
||||
'name' => $label,
|
||||
'id' => $label . $this->getRandomId(),
|
||||
'class' => 'polygon vector',
|
||||
'stroke' => 'black',
|
||||
'stroke-width' => 0.5,
|
||||
'fill' => $fill_color,
|
||||
'fill-rule' => 'evenodd',
|
||||
'fill-opacity' => 0.8,
|
||||
];
|
||||
|
||||
// Trim to remove leading 'POLYGON((' and trailing '))'
|
||||
$polygon = mb_substr($spatial, 9, -2);
|
||||
|
||||
$row = '<path d="';
|
||||
|
||||
// If the polygon doesn't have an inner polygon
|
||||
if (! str_contains($polygon, '),(')) {
|
||||
$row .= $this->drawPath($polygon, $scale_data);
|
||||
} else {
|
||||
// Separate outer and inner polygons
|
||||
$parts = explode('),(', $polygon);
|
||||
$outer = $parts[0];
|
||||
$inner = array_slice($parts, 1);
|
||||
|
||||
$row .= $this->drawPath($outer, $scale_data);
|
||||
|
||||
foreach ($inner as $inner_poly) {
|
||||
$row .= $this->drawPath($inner_poly, $scale_data);
|
||||
}
|
||||
}
|
||||
|
||||
$row .= '"';
|
||||
foreach ($polygon_options as $option => $val) {
|
||||
$row .= ' ' . $option . '="' . trim((string) $val) . '"';
|
||||
}
|
||||
|
||||
$row .= '/>';
|
||||
|
||||
return $row;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares JavaScript related to a row in the GIS dataset
|
||||
* to visualize it with OpenLayers.
|
||||
*
|
||||
* @param string $spatial GIS POLYGON object
|
||||
* @param int $srid Spatial reference ID
|
||||
* @param string $label Label for the GIS POLYGON object
|
||||
* @param array $fill_color Color for the GIS POLYGON object
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string JavaScript related to a row in the GIS dataset
|
||||
*/
|
||||
public function prepareRowAsOl($spatial, int $srid, $label, $fill_color, array $scale_data)
|
||||
{
|
||||
$fill_color[] = 0.8;
|
||||
$fill_style = ['color' => $fill_color];
|
||||
$stroke_style = [
|
||||
'color' => [0,0,0],
|
||||
'width' => 0.5,
|
||||
];
|
||||
$row = 'var style = new ol.style.Style({'
|
||||
. 'fill: new ol.style.Fill(' . json_encode($fill_style) . '),'
|
||||
. 'stroke: new ol.style.Stroke(' . json_encode($stroke_style) . ')';
|
||||
if (trim($label) !== '') {
|
||||
$text_style = ['text' => trim($label)];
|
||||
$row .= ',text: new ol.style.Text(' . json_encode($text_style) . ')';
|
||||
}
|
||||
|
||||
$row .= '});';
|
||||
|
||||
if ($srid === 0) {
|
||||
$srid = 4326;
|
||||
}
|
||||
|
||||
$row .= $this->getBoundsForOl($srid, $scale_data);
|
||||
|
||||
// Trim to remove leading 'POLYGON((' and trailing '))'
|
||||
$polygon = mb_substr($spatial, 9, -2);
|
||||
|
||||
// Separate outer and inner polygons
|
||||
$parts = explode('),(', $polygon);
|
||||
|
||||
return $row . $this->getPolygonForOpenLayers($parts, $srid)
|
||||
. 'var feature = new ol.Feature({geometry: polygon});'
|
||||
. 'feature.setStyle(style);'
|
||||
. 'vectorLayer.addFeature(feature);';
|
||||
}
|
||||
|
||||
/**
|
||||
* Draws a ring of the polygon using SVG path element.
|
||||
*
|
||||
* @param string $polygon The ring
|
||||
* @param array $scale_data Array containing data related to scaling
|
||||
*
|
||||
* @return string the code to draw the ring
|
||||
*/
|
||||
private function drawPath($polygon, array $scale_data)
|
||||
{
|
||||
$points_arr = $this->extractPoints($polygon, $scale_data);
|
||||
|
||||
$row = ' M ' . $points_arr[0][0] . ', ' . $points_arr[0][1];
|
||||
$other_points = array_slice($points_arr, 1, count($points_arr) - 2);
|
||||
foreach ($other_points as $point) {
|
||||
$row .= ' L ' . $point[0] . ', ' . $point[1];
|
||||
}
|
||||
|
||||
$row .= ' Z ';
|
||||
|
||||
return $row;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate the WKT with the set of parameters passed by the GIS editor.
|
||||
*
|
||||
* @param array $gis_data GIS data
|
||||
* @param int $index Index into the parameter object
|
||||
* @param string|null $empty Value for empty points
|
||||
*
|
||||
* @return string WKT with the set of parameters passed by the GIS editor
|
||||
*/
|
||||
public function generateWkt(array $gis_data, $index, $empty = '')
|
||||
{
|
||||
$no_of_lines = $gis_data[$index]['POLYGON']['no_of_lines'] ?? 1;
|
||||
if ($no_of_lines < 1) {
|
||||
$no_of_lines = 1;
|
||||
}
|
||||
|
||||
$wkt = 'POLYGON(';
|
||||
for ($i = 0; $i < $no_of_lines; $i++) {
|
||||
$no_of_points = $gis_data[$index]['POLYGON'][$i]['no_of_points'] ?? 4;
|
||||
if ($no_of_points < 4) {
|
||||
$no_of_points = 4;
|
||||
}
|
||||
|
||||
$wkt .= '(';
|
||||
for ($j = 0; $j < $no_of_points; $j++) {
|
||||
$wkt .= (isset($gis_data[$index]['POLYGON'][$i][$j]['x'])
|
||||
&& trim((string) $gis_data[$index]['POLYGON'][$i][$j]['x']) != ''
|
||||
? $gis_data[$index]['POLYGON'][$i][$j]['x'] : $empty)
|
||||
. ' ' . (isset($gis_data[$index]['POLYGON'][$i][$j]['y'])
|
||||
&& trim((string) $gis_data[$index]['POLYGON'][$i][$j]['y']) != ''
|
||||
? $gis_data[$index]['POLYGON'][$i][$j]['y'] : $empty) . ',';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
$wkt .= '),';
|
||||
}
|
||||
|
||||
$wkt = mb_substr($wkt, 0, -1);
|
||||
|
||||
return $wkt . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Calculates the area of a closed simple polygon.
|
||||
*
|
||||
* @param array $ring array of points forming the ring
|
||||
*
|
||||
* @return float the area of a closed simple polygon
|
||||
*
|
||||
* @static
|
||||
*/
|
||||
public static function area(array $ring)
|
||||
{
|
||||
$no_of_points = count($ring);
|
||||
|
||||
// If the last point is same as the first point ignore it
|
||||
$last = count($ring) - 1;
|
||||
if (($ring[0]['x'] == $ring[$last]['x']) && ($ring[0]['y'] == $ring[$last]['y'])) {
|
||||
$no_of_points--;
|
||||
}
|
||||
|
||||
// _n-1
|
||||
// A = _1_ \ (X(i) * Y(i+1)) - (Y(i) * X(i+1))
|
||||
// 2 /__
|
||||
// i=0
|
||||
$area = 0;
|
||||
for ($i = 0; $i < $no_of_points; $i++) {
|
||||
$j = ($i + 1) % $no_of_points;
|
||||
$area += $ring[$i]['x'] * $ring[$j]['y'];
|
||||
$area -= $ring[$i]['y'] * $ring[$j]['x'];
|
||||
}
|
||||
|
||||
$area /= 2.0;
|
||||
|
||||
return $area;
|
||||
}
|
||||
|
||||
/**
|
||||
* Determines whether a set of points represents an outer ring.
|
||||
* If points are in clockwise orientation then, they form an outer ring.
|
||||
*
|
||||
* @param array $ring array of points forming the ring
|
||||
*
|
||||
* @static
|
||||
*/
|
||||
public static function isOuterRing(array $ring): bool
|
||||
{
|
||||
// If area is negative then it's in clockwise orientation,
|
||||
// i.e. it's an outer ring
|
||||
return self::area($ring) < 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Determines whether a given point is inside a given polygon.
|
||||
*
|
||||
* @param array $point x, y coordinates of the point
|
||||
* @param array $polygon array of points forming the ring
|
||||
*
|
||||
* @static
|
||||
*/
|
||||
public static function isPointInsidePolygon(array $point, array $polygon): bool
|
||||
{
|
||||
// If first point is repeated at the end remove it
|
||||
$last = count($polygon) - 1;
|
||||
if (($polygon[0]['x'] == $polygon[$last]['x']) && ($polygon[0]['y'] == $polygon[$last]['y'])) {
|
||||
$polygon = array_slice($polygon, 0, $last);
|
||||
}
|
||||
|
||||
$no_of_points = count($polygon);
|
||||
$counter = 0;
|
||||
|
||||
// Use ray casting algorithm
|
||||
$p1 = $polygon[0];
|
||||
for ($i = 1; $i <= $no_of_points; $i++) {
|
||||
$p2 = $polygon[$i % $no_of_points];
|
||||
if ($point['y'] <= min([$p1['y'], $p2['y']])) {
|
||||
$p1 = $p2;
|
||||
continue;
|
||||
}
|
||||
|
||||
if ($point['y'] > max([$p1['y'], $p2['y']])) {
|
||||
$p1 = $p2;
|
||||
continue;
|
||||
}
|
||||
|
||||
if ($point['x'] > max([$p1['x'], $p2['x']])) {
|
||||
$p1 = $p2;
|
||||
continue;
|
||||
}
|
||||
|
||||
if ($p1['y'] != $p2['y']) {
|
||||
$xinters = ($point['y'] - $p1['y'])
|
||||
* ($p2['x'] - $p1['x'])
|
||||
/ ($p2['y'] - $p1['y']) + $p1['x'];
|
||||
if ($p1['x'] == $p2['x'] || $point['x'] <= $xinters) {
|
||||
$counter++;
|
||||
}
|
||||
}
|
||||
|
||||
$p1 = $p2;
|
||||
}
|
||||
|
||||
return $counter % 2 != 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a point that is guaranteed to be on the surface of the ring.
|
||||
* (for simple closed rings)
|
||||
*
|
||||
* @param array $ring array of points forming the ring
|
||||
*
|
||||
* @return array|false a point on the surface of the ring
|
||||
*/
|
||||
public static function getPointOnSurface(array $ring)
|
||||
{
|
||||
$x0 = null;
|
||||
$x1 = null;
|
||||
$y0 = null;
|
||||
$y1 = null;
|
||||
// Find two consecutive distinct points.
|
||||
for ($i = 0, $nb = count($ring) - 1; $i < $nb; $i++) {
|
||||
if ($ring[$i]['y'] != $ring[$i + 1]['y']) {
|
||||
$x0 = $ring[$i]['x'];
|
||||
$x1 = $ring[$i + 1]['x'];
|
||||
$y0 = $ring[$i]['y'];
|
||||
$y1 = $ring[$i + 1]['y'];
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (! isset($x0)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Find the mid point
|
||||
$x2 = ($x0 + $x1) / 2;
|
||||
$y2 = ($y0 + $y1) / 2;
|
||||
|
||||
// Always keep $epsilon < 1 to go with the reduction logic down here
|
||||
$epsilon = 0.1;
|
||||
$denominator = sqrt(($y1 - $y0) ** 2 + ($x0 - $x1) ** 2);
|
||||
$pointA = [];
|
||||
$pointB = [];
|
||||
|
||||
while (true) {
|
||||
// Get the points on either sides of the line
|
||||
// with a distance of epsilon to the mid point
|
||||
$pointA['x'] = $x2 + ($epsilon * ($y1 - $y0)) / $denominator;
|
||||
$pointA['y'] = $y2 + ($pointA['x'] - $x2) * ($x0 - $x1) / ($y1 - $y0);
|
||||
|
||||
$pointB['x'] = $x2 + ($epsilon * ($y1 - $y0)) / (0 - $denominator);
|
||||
$pointB['y'] = $y2 + ($pointB['x'] - $x2) * ($x0 - $x1) / ($y1 - $y0);
|
||||
|
||||
// One of the points should be inside the polygon,
|
||||
// unless epsilon chosen is too large
|
||||
if (self::isPointInsidePolygon($pointA, $ring)) {
|
||||
return $pointA;
|
||||
}
|
||||
|
||||
if (self::isPointInsidePolygon($pointB, $ring)) {
|
||||
return $pointB;
|
||||
}
|
||||
|
||||
//If both are outside the polygon reduce the epsilon and
|
||||
//recalculate the points(reduce exponentially for faster convergence)
|
||||
$epsilon **= 2;
|
||||
if ($epsilon == 0) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate parameters for the GIS data editor from the value of the GIS column.
|
||||
*
|
||||
* @param string $value Value of the GIS column
|
||||
* @param int $index Index of the geometry
|
||||
*
|
||||
* @return array params for the GIS data editor from the value of the GIS column
|
||||
*/
|
||||
public function generateParams($value, $index = -1)
|
||||
{
|
||||
$params = [];
|
||||
if ($index == -1) {
|
||||
$index = 0;
|
||||
$data = GisGeometry::generateParams($value);
|
||||
$params['srid'] = $data['srid'];
|
||||
$wkt = $data['wkt'];
|
||||
} else {
|
||||
$params[$index]['gis_type'] = 'POLYGON';
|
||||
$wkt = $value;
|
||||
}
|
||||
|
||||
// Trim to remove leading 'POLYGON((' and trailing '))'
|
||||
$polygon = mb_substr($wkt, 9, -2);
|
||||
// Separate each linestring
|
||||
$linerings = explode('),(', $polygon);
|
||||
$params[$index]['POLYGON']['no_of_lines'] = count($linerings);
|
||||
|
||||
$j = 0;
|
||||
foreach ($linerings as $linering) {
|
||||
$points_arr = $this->extractPoints($linering, null);
|
||||
$no_of_points = count($points_arr);
|
||||
$params[$index]['POLYGON'][$j]['no_of_points'] = $no_of_points;
|
||||
for ($i = 0; $i < $no_of_points; $i++) {
|
||||
$params[$index]['POLYGON'][$j][$i]['x'] = $points_arr[$i][0];
|
||||
$params[$index]['POLYGON'][$j][$i]['y'] = $points_arr[$i][1];
|
||||
}
|
||||
|
||||
$j++;
|
||||
}
|
||||
|
||||
return $params;
|
||||
}
|
||||
}
|
||||
719
admin/phpMyAdmin/libraries/classes/Gis/GisVisualization.php
Normal file
719
admin/phpMyAdmin/libraries/classes/Gis/GisVisualization.php
Normal file
|
|
@ -0,0 +1,719 @@
|
|||
<?php
|
||||
/**
|
||||
* Handles visualization of GIS data
|
||||
*/
|
||||
|
||||
declare(strict_types=1);
|
||||
|
||||
namespace PhpMyAdmin\Gis;
|
||||
|
||||
use PhpMyAdmin\Core;
|
||||
use PhpMyAdmin\Image\ImageWrapper;
|
||||
use PhpMyAdmin\Sanitize;
|
||||
use PhpMyAdmin\Util;
|
||||
use TCPDF;
|
||||
|
||||
use function array_merge;
|
||||
use function base64_encode;
|
||||
use function count;
|
||||
use function intval;
|
||||
use function is_numeric;
|
||||
use function is_string;
|
||||
use function mb_strlen;
|
||||
use function mb_strpos;
|
||||
use function mb_strtolower;
|
||||
use function mb_substr;
|
||||
use function ob_get_clean;
|
||||
use function ob_start;
|
||||
use function rtrim;
|
||||
|
||||
use const PNG_ALL_FILTERS;
|
||||
|
||||
/**
|
||||
* Handles visualization of GIS data
|
||||
*/
|
||||
class GisVisualization
|
||||
{
|
||||
/** @var array Raw data for the visualization */
|
||||
private $data;
|
||||
|
||||
/** @var string */
|
||||
private $modifiedSql;
|
||||
|
||||
/** @var array Set of default settings values are here. */
|
||||
private $settings = [
|
||||
// Array of colors to be used for GIS visualizations.
|
||||
'colors' => [
|
||||
'#B02EE0',
|
||||
'#E0642E',
|
||||
'#E0D62E',
|
||||
'#2E97E0',
|
||||
'#BCE02E',
|
||||
'#E02E75',
|
||||
'#5CE02E',
|
||||
'#E0B02E',
|
||||
'#0022E0',
|
||||
'#726CB1',
|
||||
'#481A36',
|
||||
'#BAC658',
|
||||
'#127224',
|
||||
'#825119',
|
||||
'#238C74',
|
||||
'#4C489B',
|
||||
'#87C9BF',
|
||||
],
|
||||
|
||||
|
||||
// Hex values for abovementioned colours
|
||||
'colors_hex' => [
|
||||
[176, 46, 224],
|
||||
[224, 100, 46],
|
||||
[224, 214, 46],
|
||||
[46, 151, 224],
|
||||
[188, 224, 46],
|
||||
[224, 46, 117],
|
||||
[92, 224, 46],
|
||||
[224, 176, 46],
|
||||
[0, 34, 224],
|
||||
[114, 108, 177],
|
||||
[72, 26, 54],
|
||||
[186, 198, 88],
|
||||
[18, 114, 36],
|
||||
[130, 81, 25],
|
||||
[35, 140, 116],
|
||||
[76, 72, 155],
|
||||
[135, 201, 191],
|
||||
],
|
||||
|
||||
// The width of the GIS visualization.
|
||||
'width' => 600,
|
||||
// The height of the GIS visualization.
|
||||
'height' => 450,
|
||||
];
|
||||
|
||||
/** @var array Options that the user has specified. */
|
||||
private $userSpecifiedSettings = null;
|
||||
|
||||
/**
|
||||
* Returns the settings array
|
||||
*
|
||||
* @return array the settings array
|
||||
*/
|
||||
public function getSettings()
|
||||
{
|
||||
return $this->settings;
|
||||
}
|
||||
|
||||
/**
|
||||
* Factory
|
||||
*
|
||||
* @param string $sql_query SQL to fetch raw data for visualization
|
||||
* @param array $options Users specified options
|
||||
* @param int $row number of rows
|
||||
* @param int $pos start position
|
||||
*
|
||||
* @return GisVisualization
|
||||
*/
|
||||
public static function get($sql_query, array $options, $row, $pos)
|
||||
{
|
||||
return new GisVisualization($sql_query, $options, $row, $pos);
|
||||
}
|
||||
|
||||
/**
|
||||
* Get visualization
|
||||
*
|
||||
* @param array $data Raw data, if set, parameters other than $options will be
|
||||
* ignored
|
||||
* @param array $options Users specified options
|
||||
*
|
||||
* @return GisVisualization
|
||||
*/
|
||||
public static function getByData(array $data, array $options)
|
||||
{
|
||||
return new GisVisualization(null, $options, null, null, $data);
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if data has SRID
|
||||
*/
|
||||
public function hasSrid(): bool
|
||||
{
|
||||
foreach ($this->data as $row) {
|
||||
if ($row['srid'] != 0) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Stores user specified options.
|
||||
*
|
||||
* @param string $sql_query SQL to fetch raw data for visualization
|
||||
* @param array $options Users specified options
|
||||
* @param int $row number of rows
|
||||
* @param int $pos start position
|
||||
* @param array|null $data raw data. If set, parameters other than $options
|
||||
* will be ignored
|
||||
*/
|
||||
private function __construct($sql_query, array $options, $row, $pos, $data = null)
|
||||
{
|
||||
$this->userSpecifiedSettings = $options;
|
||||
if (isset($data)) {
|
||||
$this->data = $data;
|
||||
} else {
|
||||
$this->modifiedSql = $this->modifySqlQuery($sql_query, $row, $pos);
|
||||
$this->data = $this->fetchRawData();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* All the variable initialization, options handling has to be done here.
|
||||
*/
|
||||
protected function init(): void
|
||||
{
|
||||
$this->handleOptions();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns sql for fetching raw data
|
||||
*
|
||||
* @param string $sql_query The SQL to modify.
|
||||
* @param int $rows Number of rows.
|
||||
* @param int $pos Start position.
|
||||
*
|
||||
* @return string the modified sql query.
|
||||
*/
|
||||
private function modifySqlQuery($sql_query, $rows, $pos)
|
||||
{
|
||||
$isMariaDb = $this->userSpecifiedSettings['isMariaDB'] === true;
|
||||
$modified_query = 'SELECT ';
|
||||
$spatialAsText = 'ASTEXT';
|
||||
$spatialSrid = 'SRID';
|
||||
$axisOrder = '';
|
||||
|
||||
if ($this->userSpecifiedSettings['mysqlVersion'] >= 50600) {
|
||||
$spatialAsText = 'ST_ASTEXT';
|
||||
$spatialSrid = 'ST_SRID';
|
||||
}
|
||||
|
||||
// If MYSQL version >= 8.0.1 override default axis order
|
||||
if ($this->userSpecifiedSettings['mysqlVersion'] >= 80001 && ! $isMariaDb) {
|
||||
$axisOrder = ', \'axis-order=long-lat\'';
|
||||
}
|
||||
|
||||
// If label column is chosen add it to the query
|
||||
if (! empty($this->userSpecifiedSettings['labelColumn'])) {
|
||||
$modified_query .= Util::backquote($this->userSpecifiedSettings['labelColumn'])
|
||||
. ', ';
|
||||
}
|
||||
|
||||
// Wrap the spatial column with 'ST_ASTEXT()' function and add it
|
||||
$modified_query .= $spatialAsText . '('
|
||||
. Util::backquote($this->userSpecifiedSettings['spatialColumn'])
|
||||
. $axisOrder . ') AS ' . Util::backquote($this->userSpecifiedSettings['spatialColumn'])
|
||||
. ', ';
|
||||
|
||||
// Get the SRID
|
||||
$modified_query .= $spatialSrid . '('
|
||||
. Util::backquote($this->userSpecifiedSettings['spatialColumn'])
|
||||
. ') AS ' . Util::backquote('srid') . ' ';
|
||||
|
||||
// Append the original query as the inner query
|
||||
$modified_query .= 'FROM (' . rtrim($sql_query, ';') . ') AS '
|
||||
. Util::backquote('temp_gis');
|
||||
|
||||
// LIMIT clause
|
||||
if (is_numeric($rows) && $rows > 0) {
|
||||
$modified_query .= ' LIMIT ';
|
||||
if (is_numeric($pos) && $pos >= 0) {
|
||||
$modified_query .= $pos . ', ' . $rows;
|
||||
} else {
|
||||
$modified_query .= $rows;
|
||||
}
|
||||
}
|
||||
|
||||
return $modified_query;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns raw data for GIS visualization.
|
||||
*
|
||||
* @return array the raw data.
|
||||
*/
|
||||
private function fetchRawData(): array
|
||||
{
|
||||
global $dbi;
|
||||
|
||||
$modified_result = $dbi->tryQuery($this->modifiedSql);
|
||||
|
||||
if ($modified_result === false) {
|
||||
return [];
|
||||
}
|
||||
|
||||
return $modified_result->fetchAllAssoc();
|
||||
}
|
||||
|
||||
/**
|
||||
* A function which handles passed parameters. Useful if desired
|
||||
* chart needs to be a little bit different from the default one.
|
||||
*/
|
||||
private function handleOptions(): void
|
||||
{
|
||||
if ($this->userSpecifiedSettings === null) {
|
||||
return;
|
||||
}
|
||||
|
||||
$this->settings = array_merge($this->settings, $this->userSpecifiedSettings);
|
||||
}
|
||||
|
||||
/**
|
||||
* Sanitizes the file name.
|
||||
*
|
||||
* @param string $file_name file name
|
||||
* @param string $ext extension of the file
|
||||
*
|
||||
* @return string the sanitized file name
|
||||
*/
|
||||
private function sanitizeName($file_name, $ext)
|
||||
{
|
||||
$file_name = Sanitize::sanitizeFilename($file_name);
|
||||
|
||||
// Check if the user already added extension;
|
||||
// get the substring where the extension would be if it was included
|
||||
$required_extension = '.' . $ext;
|
||||
$extension_length = mb_strlen($required_extension);
|
||||
$user_extension = mb_substr($file_name, -$extension_length);
|
||||
if (mb_strtolower($user_extension) != $required_extension) {
|
||||
$file_name .= $required_extension;
|
||||
}
|
||||
|
||||
return $file_name;
|
||||
}
|
||||
|
||||
/**
|
||||
* Handles common tasks of writing the visualization to file for various formats.
|
||||
*
|
||||
* @param string $file_name file name
|
||||
* @param string $type mime type
|
||||
* @param string $ext extension of the file
|
||||
*/
|
||||
private function writeToFile($file_name, $type, $ext): void
|
||||
{
|
||||
$file_name = $this->sanitizeName($file_name, $ext);
|
||||
Core::downloadHeader($file_name, $type);
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate the visualization in SVG format.
|
||||
*
|
||||
* @return string the generated image resource
|
||||
*/
|
||||
private function svg()
|
||||
{
|
||||
$this->init();
|
||||
|
||||
$output = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>'
|
||||
. "\n"
|
||||
. '<svg version="1.1" xmlns:svg="http://www.w3.org/2000/svg"'
|
||||
. ' xmlns="http://www.w3.org/2000/svg"'
|
||||
. ' width="' . intval($this->settings['width']) . '"'
|
||||
. ' height="' . intval($this->settings['height']) . '">'
|
||||
. '<g id="groupPanel">';
|
||||
|
||||
$scale_data = $this->scaleDataSet($this->data);
|
||||
$output .= $this->prepareDataSet($this->data, $scale_data, 'svg', '');
|
||||
|
||||
$output .= '</g></svg>';
|
||||
|
||||
return $output;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the visualization as a SVG.
|
||||
*
|
||||
* @return string the visualization as a SVG
|
||||
*/
|
||||
public function asSVG()
|
||||
{
|
||||
return $this->svg();
|
||||
}
|
||||
|
||||
/**
|
||||
* Saves as a SVG image to a file.
|
||||
*
|
||||
* @param string $file_name File name
|
||||
*/
|
||||
public function toFileAsSvg($file_name): void
|
||||
{
|
||||
$img = $this->svg();
|
||||
$this->writeToFile($file_name, 'image/svg+xml', 'svg');
|
||||
echo $img;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate the visualization in PNG format.
|
||||
*
|
||||
* @return ImageWrapper|null the generated image resource
|
||||
*/
|
||||
private function png(): ?ImageWrapper
|
||||
{
|
||||
$this->init();
|
||||
|
||||
$image = ImageWrapper::create(
|
||||
$this->settings['width'],
|
||||
$this->settings['height'],
|
||||
['red' => 229, 'green' => 229, 'blue' => 229]
|
||||
);
|
||||
if ($image === null) {
|
||||
return null;
|
||||
}
|
||||
|
||||
$scale_data = $this->scaleDataSet($this->data);
|
||||
/** @var ImageWrapper $image */
|
||||
$image = $this->prepareDataSet($this->data, $scale_data, 'png', $image);
|
||||
|
||||
return $image;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the visualization as a PNG.
|
||||
*
|
||||
* @return string the visualization as a PNG
|
||||
*/
|
||||
public function asPng()
|
||||
{
|
||||
$image = $this->png();
|
||||
if ($image === null) {
|
||||
return '';
|
||||
}
|
||||
|
||||
// render and save it to variable
|
||||
ob_start();
|
||||
$image->png(null, 9, PNG_ALL_FILTERS);
|
||||
$image->destroy();
|
||||
$output = ob_get_clean();
|
||||
|
||||
// base64 encode
|
||||
$encoded = base64_encode((string) $output);
|
||||
|
||||
return '<img src="data:image/png;base64,' . $encoded . '">';
|
||||
}
|
||||
|
||||
/**
|
||||
* Saves as a PNG image to a file.
|
||||
*
|
||||
* @param string $file_name File name
|
||||
*/
|
||||
public function toFileAsPng($file_name): void
|
||||
{
|
||||
$image = $this->png();
|
||||
if ($image === null) {
|
||||
return;
|
||||
}
|
||||
|
||||
$this->writeToFile($file_name, 'image/png', 'png');
|
||||
$image->png(null, 9, PNG_ALL_FILTERS);
|
||||
$image->destroy();
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the code for visualization with OpenLayers.
|
||||
*
|
||||
* @return string the code for visualization with OpenLayers
|
||||
*
|
||||
* @todo Should return JSON to avoid eval() in gis_data_editor.js
|
||||
*/
|
||||
public function asOl()
|
||||
{
|
||||
$this->init();
|
||||
$scale_data = $this->scaleDataSet($this->data);
|
||||
$output = 'function drawOpenLayers() {'
|
||||
. 'if (typeof ol !== "undefined") {'
|
||||
. 'var olCss = "js/vendor/openlayers/theme/ol.css";'
|
||||
. '$(\'head\').append(\'<link rel="stylesheet" type="text/css" href=\'+olCss+\'>\');'
|
||||
. 'var vectorLayer = new ol.source.Vector({});'
|
||||
. 'var map = new ol.Map({'
|
||||
. 'target: \'openlayersmap\','
|
||||
. 'layers: ['
|
||||
. 'new ol.layer.Tile({'
|
||||
. 'source: new ol.source.OSM()'
|
||||
. '}),'
|
||||
. 'new ol.layer.Vector({'
|
||||
. 'source: vectorLayer'
|
||||
. '})'
|
||||
. '],'
|
||||
. 'view: new ol.View({'
|
||||
. 'center: ol.proj.fromLonLat([37.41, 8.82]),'
|
||||
. 'zoom: 4'
|
||||
. '}),'
|
||||
. 'controls: [new ol.control.MousePosition({'
|
||||
. 'coordinateFormat: ol.coordinate.createStringXY(4),'
|
||||
. 'projection: \'EPSG:4326\'}),'
|
||||
. 'new ol.control.Zoom,'
|
||||
. 'new ol.control.Attribution]'
|
||||
. '});';
|
||||
$output .= $this->prepareDataSet($this->data, $scale_data, 'ol', '')
|
||||
. 'return map;'
|
||||
. '}'
|
||||
. 'return undefined;'
|
||||
. '}';
|
||||
|
||||
return $output;
|
||||
}
|
||||
|
||||
/**
|
||||
* Saves as a PDF to a file.
|
||||
*
|
||||
* @param string $file_name File name
|
||||
*/
|
||||
public function toFileAsPdf($file_name): void
|
||||
{
|
||||
$this->init();
|
||||
|
||||
// create pdf
|
||||
$pdf = new TCPDF('', 'pt', $GLOBALS['cfg']['PDFDefaultPageSize'], true, 'UTF-8', false);
|
||||
|
||||
// disable header and footer
|
||||
$pdf->setPrintHeader(false);
|
||||
$pdf->setPrintFooter(false);
|
||||
|
||||
//set auto page breaks
|
||||
$pdf->setAutoPageBreak(false);
|
||||
|
||||
// add a page
|
||||
$pdf->AddPage();
|
||||
|
||||
$scale_data = $this->scaleDataSet($this->data);
|
||||
$pdf = $this->prepareDataSet($this->data, $scale_data, 'pdf', $pdf);
|
||||
|
||||
// sanitize file name
|
||||
$file_name = $this->sanitizeName($file_name, 'pdf');
|
||||
$pdf->Output($file_name, 'D');
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert file to image
|
||||
*
|
||||
* @param string $format Output format
|
||||
*
|
||||
* @return string File
|
||||
*/
|
||||
public function toImage($format)
|
||||
{
|
||||
if ($format === 'svg') {
|
||||
return $this->asSVG();
|
||||
}
|
||||
|
||||
if ($format === 'png') {
|
||||
return $this->asPng();
|
||||
}
|
||||
|
||||
if ($format === 'ol') {
|
||||
return $this->asOl();
|
||||
}
|
||||
|
||||
return '';
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert file to given format
|
||||
*
|
||||
* @param string $filename Filename
|
||||
* @param string $format Output format
|
||||
*/
|
||||
public function toFile($filename, $format): void
|
||||
{
|
||||
if ($format === 'svg') {
|
||||
$this->toFileAsSvg($filename);
|
||||
} elseif ($format === 'png') {
|
||||
$this->toFileAsPng($filename);
|
||||
} elseif ($format === 'pdf') {
|
||||
$this->toFileAsPdf($filename);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Calculates the scale, horizontal and vertical offset that should be used.
|
||||
*
|
||||
* @param array $data Row data
|
||||
*
|
||||
* @return array an array containing the scale, x and y offsets
|
||||
*/
|
||||
private function scaleDataSet(array $data)
|
||||
{
|
||||
$min_max = [
|
||||
'maxX' => 0.0,
|
||||
'maxY' => 0.0,
|
||||
'minX' => 0.0,
|
||||
'minY' => 0.0,
|
||||
];
|
||||
$border = 15;
|
||||
// effective width and height of the plot
|
||||
$plot_width = $this->settings['width'] - 2 * $border;
|
||||
$plot_height = $this->settings['height'] - 2 * $border;
|
||||
|
||||
foreach ($data as $row) {
|
||||
// Figure out the data type
|
||||
$ref_data = $row[$this->settings['spatialColumn']];
|
||||
if (! is_string($ref_data)) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$type_pos = mb_strpos($ref_data, '(');
|
||||
if ($type_pos === false) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$type = mb_substr($ref_data, 0, $type_pos);
|
||||
|
||||
$gis_obj = GisFactory::factory($type);
|
||||
if (! $gis_obj) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$scale_data = $gis_obj->scaleRow($row[$this->settings['spatialColumn']]);
|
||||
|
||||
// Update minimum/maximum values for x and y coordinates.
|
||||
$c_maxX = (float) $scale_data['maxX'];
|
||||
if ($min_max['maxX'] === 0.0 || $c_maxX > $min_max['maxX']) {
|
||||
$min_max['maxX'] = $c_maxX;
|
||||
}
|
||||
|
||||
$c_minX = (float) $scale_data['minX'];
|
||||
if ($min_max['minX'] === 0.0 || $c_minX < $min_max['minX']) {
|
||||
$min_max['minX'] = $c_minX;
|
||||
}
|
||||
|
||||
$c_maxY = (float) $scale_data['maxY'];
|
||||
if ($min_max['maxY'] === 0.0 || $c_maxY > $min_max['maxY']) {
|
||||
$min_max['maxY'] = $c_maxY;
|
||||
}
|
||||
|
||||
$c_minY = (float) $scale_data['minY'];
|
||||
if ($min_max['minY'] !== 0.0 && $c_minY >= $min_max['minY']) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$min_max['minY'] = $c_minY;
|
||||
}
|
||||
|
||||
// scale the visualization
|
||||
$x_ratio = ($min_max['maxX'] - $min_max['minX']) / $plot_width;
|
||||
$y_ratio = ($min_max['maxY'] - $min_max['minY']) / $plot_height;
|
||||
$ratio = $x_ratio > $y_ratio ? $x_ratio : $y_ratio;
|
||||
|
||||
$scale = $ratio != 0 ? 1 / $ratio : 1;
|
||||
|
||||
// Center plot
|
||||
$x = $ratio == 0 || $x_ratio < $y_ratio
|
||||
? ($min_max['maxX'] + $min_max['minX'] - $this->settings['width'] / $scale) / 2
|
||||
: $min_max['minX'] - ($border / $scale);
|
||||
$y = $ratio == 0 || $x_ratio >= $y_ratio
|
||||
? ($min_max['maxY'] + $min_max['minY'] - $this->settings['height'] / $scale) / 2
|
||||
: $min_max['minY'] - ($border / $scale);
|
||||
|
||||
return [
|
||||
'scale' => $scale,
|
||||
'x' => $x,
|
||||
'y' => $y,
|
||||
'minX' => $min_max['minX'],
|
||||
'maxX' => $min_max['maxX'],
|
||||
'minY' => $min_max['minY'],
|
||||
'maxY' => $min_max['maxY'],
|
||||
'height' => $this->settings['height'],
|
||||
];
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares and return the dataset as needed by the visualization.
|
||||
*
|
||||
* @param array $data Raw data
|
||||
* @param array $scale_data Data related to scaling
|
||||
* @param string $format Format of the visualization
|
||||
* @param ImageWrapper|TCPDF|string|false $results Image object in the case of png
|
||||
* TCPDF object in the case of pdf
|
||||
*
|
||||
* @return mixed the formatted array of data
|
||||
*/
|
||||
private function prepareDataSet(array $data, array $scale_data, $format, $results)
|
||||
{
|
||||
$color_number = 0;
|
||||
|
||||
// loop through the rows
|
||||
foreach ($data as $row) {
|
||||
$index = $color_number % count($this->settings['colors']);
|
||||
|
||||
// Figure out the data type
|
||||
$ref_data = $row[$this->settings['spatialColumn']];
|
||||
if (! is_string($ref_data)) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$type_pos = mb_strpos($ref_data, '(');
|
||||
if ($type_pos === false) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$type = mb_substr($ref_data, 0, $type_pos);
|
||||
|
||||
$gis_obj = GisFactory::factory($type);
|
||||
if (! $gis_obj) {
|
||||
continue;
|
||||
}
|
||||
|
||||
$label = '';
|
||||
if (isset($this->settings['labelColumn'], $row[$this->settings['labelColumn']])) {
|
||||
$label = $row[$this->settings['labelColumn']];
|
||||
}
|
||||
|
||||
if ($format === 'svg') {
|
||||
$results .= $gis_obj->prepareRowAsSvg(
|
||||
$row[$this->settings['spatialColumn']],
|
||||
$label,
|
||||
$this->settings['colors'][$index],
|
||||
$scale_data
|
||||
);
|
||||
} elseif ($format === 'png') {
|
||||
$results = $gis_obj->prepareRowAsPng(
|
||||
$row[$this->settings['spatialColumn']],
|
||||
$label,
|
||||
$this->settings['colors'][$index],
|
||||
$scale_data,
|
||||
$results
|
||||
);
|
||||
} elseif ($format === 'pdf' && $results instanceof TCPDF) {
|
||||
$results = $gis_obj->prepareRowAsPdf(
|
||||
$row[$this->settings['spatialColumn']],
|
||||
$label,
|
||||
$this->settings['colors'][$index],
|
||||
$scale_data,
|
||||
$results
|
||||
);
|
||||
} elseif ($format === 'ol') {
|
||||
$results .= $gis_obj->prepareRowAsOl(
|
||||
$row[$this->settings['spatialColumn']],
|
||||
(int) $row['srid'],
|
||||
$label,
|
||||
$this->settings['colors_hex'][$index],
|
||||
$scale_data
|
||||
);
|
||||
}
|
||||
|
||||
$color_number++;
|
||||
}
|
||||
|
||||
return $results;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set user specified settings
|
||||
*
|
||||
* @param array $userSpecifiedSettings User specified settings
|
||||
*/
|
||||
public function setUserSpecifiedSettings(array $userSpecifiedSettings): void
|
||||
{
|
||||
$this->userSpecifiedSettings = $userSpecifiedSettings;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue