52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
#ifndef _3DS_WRITER_COMPARE_TRIANGLE_HEADER__
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#define _3DS_WRITER_COMPARE_TRIANGLE_HEADER__
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#include <osg/Geode>
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#include <osg/Geometry>
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#include <iostream>
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struct Triangle
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{
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unsigned int t1;
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unsigned int t2;
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unsigned int t3;
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unsigned int material;
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};
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class WriterCompareTriangle {
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public:
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WriterCompareTriangle(const osg::Geode & geode, unsigned int nbVertices);
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bool operator()(const std::pair<Triangle, int> & t1,
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const std::pair<Triangle, int> & t2) const;
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private:
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void // This function prevent from cut scene in too many blocs
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setMaxMin(int & nbVerticesX,
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int & nbVerticesY,
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int & nbVerticesZ) const;
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/**
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* Cut the scene in different bloc to sort.
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* \param nbVertices is the number of vertice in mesh.
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* \param sceneBox contain the size of the scene.
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*/
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void
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cutscene(int nbVertices,
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const osg::BoundingBox & sceneBox);
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/**
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* Find in which box those points are.
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* \return the place of the box in the vector.
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* \sa See cutScene() about the definition of the boxes for faces sorting.
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*/
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int inWhichBox(const osg::BoundingBox::value_type x,
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const osg::BoundingBox::value_type y,
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const osg::BoundingBox::value_type z) const;
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int inWhichBox(const osg::BoundingBox::vec_type & point) const;
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const osg::Geode & geode;
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std::vector<osg::BoundingBox> boxList;
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};
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#endif // _3DS_WRITER_COMPARE_TRIANGLE_HEADER__
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