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// Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.1 (2012/07/07)
#ifndef PARTITIONMESH_H
#define PARTITIONMESH_H
#include "Wm5EdgeKey.h"
#include "Wm5HPlane.h"
using namespace Wm5;
class PartitionMesh
{
public:
PartitionMesh (const std::vector<APoint>& vertices,
const std::vector<int>& indices, const HPlane& plane,
std::vector<APoint>& clipVertices, std::vector<int>& negIndices,
std::vector<int>& posIndices);
private:
void ClassifyVertices (const std::vector<APoint>& clipVertices,
const HPlane& plane);
void ClassifyEdges (std::vector<APoint>& clipVertices,
const std::vector<int>& indices);
void ClassifyTriangles (const std::vector<int>& indices,
std::vector<int>& negIndices, std::vector<int>& posIndices);
void AppendTriangle (std::vector<int>& indices, int v0, int v1, int v2);
void SplitTrianglePPM (std::vector<int>& negIndices,
std::vector<int>& posIndices, int v0, int v1, int v2);
void SplitTriangleMMP (std::vector<int>& rkNegIndices,
std::vector<int>& rkPosIndices, int v0, int v1, int v2);
void SplitTrianglePMZ (std::vector<int>& rkNegIndices,
std::vector<int>& rkPosIndices, int v0, int v1, int v2);
void SplitTriangleMPZ (std::vector<int>& rkNegIndices,
std::vector<int>& rkPosIndices, int v0, int v1, int v2);
// Stores the signed distances from the vertices to the plane.
std::vector<float> mSignedDistances;
// Stores the edges whose vertices are on opposite sides of the
// plane. The key is a pair of indices into the vertex array.
// The value is the point of intersection of the edge with the
// plane and an index into m_kVertices (the index is larger or
// equal to the number of vertices of incoming rkVertices).
std::map<EdgeKey,std::pair<APoint, int> > mEMap;
};
#endif
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