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107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
/*+
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VIDE -- Void IDEntification pipeline -- ./c_tools/libzobov/contour_pixels.cpp
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Copyright (C) 2010-2013 Guilhem Lavaux
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Copyright (C) 2011-2013 P. M. Sutter
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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+*/
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#include <vector>
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#include <healpix_map.h>
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#include <healpix_map_fitsio.h>
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#include "contour_pixels.hpp"
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using namespace std;
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static const bool DEBUG = true;
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void computeFilledPixels(Healpix_Map<float>& m, vector<int>& filled)
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{
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filled.clear();
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for (int p = 0; p < m.Npix(); p++)
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if (m[p] > 0)
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filled.push_back(p);
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}
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void computeContourPixels(Healpix_Map<float>& m, vector<int>& contour)
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{
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contour.clear();
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for (int p = 0; p < m.Npix(); p++)
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{
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fix_arr<int, 8> result;
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m.neighbors(p, result);
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for (int q = 0; q < 8; q++)
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{
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if (result[q] < 0)
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continue;
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float delta = (m[p]-0.5)*(m[result[q]]-0.5);
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if (delta < 0)
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{
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contour.push_back(p);
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// This is boundary go to next pixel
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break;
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}
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}
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}
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if (DEBUG)
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{
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Healpix_Map<int> contour_map;
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contour_map.SetNside(m.Nside(), RING);
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contour_map.fill(0);
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for (int p = 0; p < contour.size(); p++)
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{
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contour_map[contour[p]]=1;
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}
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fitshandle h;
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h.create("!contour_map.fits");
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write_Healpix_map_to_fits(h, contour_map, planckType<int>());
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}
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}
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void computeMaskPixels(Healpix_Map<float>& m, vector<int>& contour)
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{
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for (int p = 0; p < m.Npix(); p++)
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{
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if (m[p]>0)
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{
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contour.push_back(p);
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// This is boundary go to next pixel
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}
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}
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if (DEBUG)
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{
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Healpix_Map<int> contour_map;
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contour_map.SetNside(m.Nside(), RING);
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contour_map.fill(0);
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for (int p = 0; p < contour.size(); p++)
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{
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contour_map[contour[p]]=1;
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}
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fitshandle h;
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h.create("!mask_map.fits");
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write_Healpix_map_to_fits(h, contour_map, planckType<int>());
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}
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}
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