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authordan miller2007-10-19 05:20:48 +0000
committerdan miller2007-10-19 05:20:48 +0000
commitd48ea5bb797037069d641da41da0f195f0124491 (patch)
tree40ff433d94859d629aac933d5ec73b382f62ba1a /libraries/ode-0.9/OPCODE/Ice/IceIndexedTriangle.h
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one more for the gipper
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1///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
2/**
3 * Contains a handy indexed triangle class.
4 * \file IceIndexedTriangle.h
5 * \author Pierre Terdiman
6 * \date January, 17, 2000
7 */
8///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
9
10///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
11// Include Guard
12#ifndef __ICEINDEXEDTRIANGLE_H__
13#define __ICEINDEXEDTRIANGLE_H__
14
15 // Forward declarations
16#ifdef _MSC_VER
17 enum CubeIndex;
18#else
19 typedef int CubeIndex;
20#endif
21
22 // An indexed triangle class.
23 class ICEMATHS_API IndexedTriangle
24 {
25 public:
26 //! Constructor
27 inline_ IndexedTriangle() {}
28 //! Constructor
29 inline_ IndexedTriangle(udword r0, udword r1, udword r2) { mVRef[0]=r0; mVRef[1]=r1; mVRef[2]=r2; }
30 //! Copy constructor
31 inline_ IndexedTriangle(const IndexedTriangle& triangle)
32 {
33 mVRef[0] = triangle.mVRef[0];
34 mVRef[1] = triangle.mVRef[1];
35 mVRef[2] = triangle.mVRef[2];
36 }
37 //! Destructor
38 inline_ ~IndexedTriangle() {}
39 //! Vertex-references
40 udword mVRef[3];
41
42 // Methods
43 void Flip();
44 float Area(const Point* verts) const;
45 float Perimeter(const Point* verts) const;
46 float Compacity(const Point* verts) const;
47 void Normal(const Point* verts, Point& normal) const;
48 void DenormalizedNormal(const Point* verts, Point& normal) const;
49 void Center(const Point* verts, Point& center) const;
50 void CenteredNormal(const Point* verts, Point& normal) const;
51 void RandomPoint(const Point* verts, Point& random) const;
52 bool IsVisible(const Point* verts, const Point& source) const;
53 bool BackfaceCulling(const Point* verts, const Point& source) const;
54 float ComputeOcclusionPotential(const Point* verts, const Point& view) const;
55 bool ReplaceVertex(udword oldref, udword newref);
56 bool IsDegenerate() const;
57 bool HasVertex(udword ref) const;
58 bool HasVertex(udword ref, udword* index) const;
59 ubyte FindEdge(udword vref0, udword vref1) const;
60 udword OppositeVertex(udword vref0, udword vref1) const;
61 inline_ udword OppositeVertex(ubyte edgenb) const { return mVRef[2-edgenb]; }
62 void GetVRefs(ubyte edgenb, udword& vref0, udword& vref1, udword& vref2) const;
63 float MinEdgeLength(const Point* verts) const;
64 float MaxEdgeLength(const Point* verts) const;
65 void ComputePoint(const Point* verts, float u, float v, Point& pt, udword* nearvtx=null) const;
66 float Angle(const IndexedTriangle& tri, const Point* verts) const;
67 inline_ Plane PlaneEquation(const Point* verts) const { return Plane(verts[mVRef[0]], verts[mVRef[1]], verts[mVRef[2]]); }
68 bool Equal(const IndexedTriangle& tri) const;
69 CubeIndex ComputeCubeIndex(const Point* verts) const;
70 };
71
72#endif // __ICEINDEXEDTRIANGLE_H__