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[544] | 1 | #ifndef __TETRAHEDRON3_H
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| 2 | #define __TETRAHEDRON3_H
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| 3 |
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| 4 | #include "Triangle3.h"
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| 5 | #include "Vector3.h"
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| 6 |
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| 7 | class Tetrahedron3
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| 8 | {
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| 9 | public:
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| 10 | Vector3 mVertices[4];
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| 11 |
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| 12 | Tetrahedron3() {}
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| 13 |
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| 14 | Tetrahedron3(const Vector3 &a,
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| 15 | const Vector3 &b,
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| 16 | const Vector3 &c,
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| 17 | const Vector3 &d)
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| 18 | {
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| 19 | Init(a, b, c, d);
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| 20 | }
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| 21 |
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| 22 | Tetrahedron3(const Triangle3 &t, const Vector3 &a)
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| 23 | {
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| 24 | Init(t.mVertices[0], t.mVertices[1], t.mVertices[2], a);
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| 25 | }
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| 26 |
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| 27 | void Init(const Vector3 &a,
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| 28 | const Vector3 &b,
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| 29 | const Vector3 &c,
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| 30 | const Vector3 &d)
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| 31 | {
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| 32 | mVertices[0] = a;
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| 33 | mVertices[1] = b;
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| 34 | mVertices[2] = c;
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| 35 | mVertices[3] = c;
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| 36 | }
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| 37 |
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| 38 | Triangle3 GetTriangle(const int i) const
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| 39 | {
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| 40 | switch(i)
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| 41 | {
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| 42 | case 0:
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| 43 | return Triangle3(mVertices[0], mVertices[1], mVertices[2]);
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| 44 | break;
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| 45 | case 1:
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| 46 | return Triangle3(mVertices[0], mVertices[1], mVertices[3]);
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| 47 | break;
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| 48 | case 2:
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| 49 | return Triangle3(mVertices[1], mVertices[2], mVertices[3]);
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| 50 | break;
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| 51 | case 3:
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| 52 | return Triangle3(mVertices[0], mVertices[3], mVertices[2]);
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| 53 | break;
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| 54 | }
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| 55 | return Triangle3();
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| 56 | }
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| 57 |
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| 58 |
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| 59 | float GetArea() const;
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| 60 | float GetVolume() const;
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| 61 | bool Valid() const;
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| 62 |
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| 63 | };
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| 64 |
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| 65 |
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| 66 | #endif
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| 67 |
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