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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | // 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: 5.0.0 (2010/01/01)
#ifndef WM5TETRAHEDRON3_H
#define WM5TETRAHEDRON3_H
#include "Wm5MathematicsLIB.h"
#include "Wm5Plane3.h"
namespace Wm5
{
template <typename Real>
class Tetrahedron3
{
public:
// The tetrahedron is represented as an array of four vertices:
// V0, V1, V2, and V3. The vertices are ordered so that the triangular
// faces are counterclockwise-ordered triangles when viewed by an observer
// outside the tetrahedron:
// face 0 = <V[0],V[2],V[1]>
// face 1 = <V[0],V[1],V[3]>
// face 2 = <V[0],V[3],V[2]>
// face 3 = <V[1],V[2],V[3]>
// Construction and destruction.
Tetrahedron3 (); // uninitialized
~Tetrahedron3 ();
Tetrahedron3 (const Vector3<Real>& v0, const Vector3<Real>& v1,
const Vector3<Real>& v2, const Vector3<Real>& v3);
Tetrahedron3 (const Vector3<Real> vertex[4]);
// Get the vertex indices for the specified face.
void GetFaceIndices (int face, int index[3]) const;
// Construct the planes of the faces. The planes have outer pointing
// normal vectors. The plane indexing is the same as the face indexing
// mentioned previously.
void GetPlanes (Plane3<Real> plane[4]) const;
Vector3<Real> V[4];
};
#include "Wm5Tetrahedron3.inl"
typedef Tetrahedron3<float> Tetrahedron3f;
typedef Tetrahedron3<double> Tetrahedron3d;
}
#endif
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