64 lines
1.4 KiB
C++
64 lines
1.4 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/** \file
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* \ingroup freestyle
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* \brief Class to define a cell grid surrounding the bounding box of the scene
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*/
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#include "Grid.h"
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namespace Freestyle {
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/** Class to define a regular grid used for ray casting computations
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* We don't use a hash-table here. The grid is explicitly stored for faster computations.
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* However, this might result in significant increase in memory usage
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* (compared to the regular grid).
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*/
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class FastGrid : public Grid {
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public:
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FastGrid() : Grid()
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{
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_cells = NULL;
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_cells_size = 0;
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}
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virtual ~FastGrid()
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{
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clear();
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}
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/**
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* clears the grid
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* Deletes all the cells, clears the hash-table, resets size, size of cell, number of cells.
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*/
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virtual void clear();
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/** Sets the different parameters of the grid
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* orig
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* The grid origin
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* size
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* The grid's dimensions
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* nb
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* The number of cells of the grid
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*/
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virtual void configure(const Vec3r &orig, const Vec3r &size, unsigned nb);
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/** returns the cell whose coordinates are passed as argument */
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Cell *getCell(const Vec3u &p);
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/** Fills the case p with the cell iCell */
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virtual void fillCell(const Vec3u &p, Cell &cell);
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protected:
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Cell **_cells;
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unsigned _cells_size;
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#ifdef WITH_CXX_GUARDEDALLOC
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MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:FastGrid")
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#endif
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};
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} /* namespace Freestyle */
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