forked from bartvdbraak/blender
189 lines
2.9 KiB
C++
189 lines
2.9 KiB
C++
/*
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* Copyright (c) 2005 Erwin Coumans http://www.erwincoumans.com
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies.
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* Erwin Coumans makes no representations about the suitability
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* of this software for any purpose.
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* It is provided "as is" without express or implied warranty.
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*/
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#include "Simplex1to4Shape.h"
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#include "SimdMatrix3x3.h"
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BU_Simplex1to4::BU_Simplex1to4()
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:m_numVertices(0)
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{
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}
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BU_Simplex1to4::BU_Simplex1to4(const SimdPoint3& pt0)
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:m_numVertices(0)
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{
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AddVertex(pt0);
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}
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BU_Simplex1to4::BU_Simplex1to4(const SimdPoint3& pt0,const SimdPoint3& pt1)
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:m_numVertices(0)
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{
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AddVertex(pt0);
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AddVertex(pt1);
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}
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BU_Simplex1to4::BU_Simplex1to4(const SimdPoint3& pt0,const SimdPoint3& pt1,const SimdPoint3& pt2)
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:m_numVertices(0)
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{
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AddVertex(pt0);
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AddVertex(pt1);
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AddVertex(pt2);
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}
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BU_Simplex1to4::BU_Simplex1to4(const SimdPoint3& pt0,const SimdPoint3& pt1,const SimdPoint3& pt2,const SimdPoint3& pt3)
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:m_numVertices(0)
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{
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AddVertex(pt0);
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AddVertex(pt1);
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AddVertex(pt2);
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AddVertex(pt3);
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}
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void BU_Simplex1to4::AddVertex(const SimdPoint3& pt)
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{
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m_vertices[m_numVertices++] = pt;
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}
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int BU_Simplex1to4::GetNumVertices() const
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{
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return m_numVertices;
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}
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int BU_Simplex1to4::GetNumEdges() const
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{
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//euler formula, F-E+V = 2, so E = F+V-2
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switch (m_numVertices)
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{
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case 0:
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return 0;
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case 1: return 0;
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case 2: return 1;
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case 3: return 3;
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case 4: return 6;
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}
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return 0;
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}
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void BU_Simplex1to4::GetEdge(int i,SimdPoint3& pa,SimdPoint3& pb) const
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{
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switch (m_numVertices)
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{
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case 2:
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pa = m_vertices[0];
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pb = m_vertices[1];
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break;
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case 3:
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switch (i)
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{
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case 0:
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pa = m_vertices[0];
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pb = m_vertices[1];
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break;
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case 1:
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pa = m_vertices[1];
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pb = m_vertices[2];
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break;
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case 2:
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pa = m_vertices[2];
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pb = m_vertices[0];
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break;
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}
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break;
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case 4:
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switch (i)
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{
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case 0:
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pa = m_vertices[0];
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pb = m_vertices[1];
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break;
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case 1:
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pa = m_vertices[1];
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pb = m_vertices[2];
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break;
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case 2:
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pa = m_vertices[2];
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pb = m_vertices[0];
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break;
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case 3:
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pa = m_vertices[0];
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pb = m_vertices[3];
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break;
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case 4:
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pa = m_vertices[1];
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pb = m_vertices[3];
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break;
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case 5:
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pa = m_vertices[2];
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pb = m_vertices[3];
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break;
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}
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}
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}
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void BU_Simplex1to4::GetVertex(int i,SimdPoint3& vtx) const
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{
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vtx = m_vertices[i];
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}
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int BU_Simplex1to4::GetNumPlanes() const
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{
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switch (m_numVertices)
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{
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case 0:
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return 0;
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case 1:
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return 0;
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case 2:
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return 0;
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case 3:
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return 2;
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case 4:
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return 4;
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default:
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{
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}
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}
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return 0;
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}
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void BU_Simplex1to4::GetPlane(SimdVector3& planeNormal,SimdPoint3& planeSupport,int i) const
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{
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}
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int BU_Simplex1to4::GetIndex(int i) const
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{
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return 0;
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}
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bool BU_Simplex1to4::IsInside(const SimdPoint3& pt,SimdScalar tolerance) const
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{
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return false;
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}
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