143 lines
4.2 KiB
C++
143 lines
4.2 KiB
C++
/*+
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This is CosmoTool (./src/kdtree_leaf.hpp) -- Copyright (C) Guilhem Lavaux (2007-2014)
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guilhem.lavaux@gmail.com
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This software is a computer program whose purpose is to provide a toolbox for cosmological
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data analysis (e.g. filters, generalized Fourier transforms, power spectra, ...)
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This software is governed by the CeCILL license under French law and
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abiding by the rules of distribution of free software. You can use,
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modify and/ or redistribute the software under the terms of the CeCILL
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license as circulated by CEA, CNRS and INRIA at the following URL
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"http://www.cecill.info".
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As a counterpart to the access to the source code and rights to copy,
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modify and redistribute granted by the license, users are provided only
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with a limited warranty and the software's author, the holder of the
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economic rights, and the successive licensors have only limited
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liability.
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In this respect, the user's attention is drawn to the risks associated
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with loading, using, modifying and/or developing or reproducing the
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software by the user in light of its specific status of free software,
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that may mean that it is complicated to manipulate, and that also
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therefore means that it is reserved for developers and experienced
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professionals having in-depth computer knowledge. Users are therefore
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encouraged to load and test the software's suitability as regards their
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requirements in conditions enabling the security of their systems and/or
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data to be ensured and, more generally, to use and operate it in the
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same conditions as regards security.
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The fact that you are presently reading this means that you have had
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knowledge of the CeCILL license and that you accept its terms.
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+*/
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#ifndef __LEAF_KDTREE_HPP
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#define __LEAF_KDTREE_HPP
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#include <cmath>
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#include "config.hpp"
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#include "bqueue.hpp"
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namespace CosmoTool {
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template<int N, typename CType = ComputePrecision>
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struct KDLeafDef
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{
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typedef CType CoordType;
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typedef float KDLeafCoordinates[N];
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};
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template<int N, typename ValType, typename CType = ComputePrecision>
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struct KDLeafCell
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{
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bool active;
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ValType val;
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typename KDLeafDef<N,CType>::KDLeafCoordinates coord;
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};
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class NotEnoughCells: public Exception
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{
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public:
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NotEnoughCells() : Exception() {}
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~NotEnoughCells() throw () {}
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};
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template<int N, typename ValType, typename CType = ComputePrecision>
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struct KDLeafTreeNode
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{
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bool leaf;
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union {
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KDLeafCell<N,ValType,CType> *value;
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KDLeafTreeNode<N,ValType,CType> *children[2];
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};
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typename KDLeafDef<N,CType>::KDLeafCoordinates minBound, maxBound;
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#ifdef __KDLEAF_TREE_NUMNODES
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uint32_t numNodes;
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#endif
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};
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template<int N, typename ValType, typename CType = ComputePrecision>
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class KDLeafTree
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{
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public:
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typedef typename KDLeafDef<N,CType>::CoordType CoordType;
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typedef typename KDLeafDef<N>::KDLeafCoordinates coords;
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typedef KDLeafCell<N,ValType,CType> Cell;
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typedef KDLeafTreeNode<N,ValType,CType> Node;
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KDLeafTree(Cell *cells, uint32_t Ncells);
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~KDLeafTree();
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Node *getRoot() { return root; }
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void optimize();
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Node *getAllNodes() { return nodes; }
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uint32_t getNumNodes() const { return lastNode; }
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uint32_t countActives() const;
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CoordType computeDistance(const Cell *cell, const coords& x) const;
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#ifdef __KDLEAF_TREE_NUMNODES
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uint32_t getNumberInNode(const Node *n) const { return n->numNodes; }
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#else
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uint32_t getNumberInNode(const Node *n) const {
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if (n->leaf)
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return 1;
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if (n == 0)
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return 0;
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return getNumberInNode(n->children[0])+getNumberInNode(n->children[1]);
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}
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#endif
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double countInRange(CType sLo, CType sHi, Node *root1 = 0, Node *root2 = 0) const;
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protected:
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Node *nodes;
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uint32_t numNodes, numCells;
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uint32_t lastNode;
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Node *root;
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Cell **sortingHelper;
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Node *buildTree(Cell **cell0,
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uint32_t NumCells,
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uint32_t depth,
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coords minBound,
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coords maxBound);
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double recursiveCountInRange(Node *na, Node *nb, CType sLo, CType sHi) const;
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};
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template<int N, typename T, typename CType>
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uint32_t gatherActiveCells(KDLeafCell<N,T,CType> **cells, uint32_t numCells);
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};
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#include "kdtree_leaf.tcc"
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#endif
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