btConvexTriangleMeshShape.h

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/*
Bullet Continuous Collision Detection and Physics Library
Copyright (c) 2003-2009 Erwin Coumans  http://bulletphysics.org

This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose, 
including commercial applications, and to alter it and redistribute it freely, 
subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#ifndef CONVEX_TRIANGLEMESH_SHAPE_H
#define CONVEX_TRIANGLEMESH_SHAPE_H


#include "btPolyhedralConvexShape.h"
#include "BulletCollision/BroadphaseCollision/btBroadphaseProxy.h" // for the types


class btConvexTriangleMeshShape : public btPolyhedralConvexAabbCachingShape
{

    class btStridingMeshInterface*  m_stridingMesh;

public:
    btConvexTriangleMeshShape(btStridingMeshInterface* meshInterface, bool calcAabb = true);

    class btStridingMeshInterface*  getMeshInterface()
    {
        return m_stridingMesh;
    }
    const class btStridingMeshInterface* getMeshInterface() const
    {
        return m_stridingMesh;
    }
    
    virtual btVector3   localGetSupportingVertex(const btVector3& vec)const;
    virtual btVector3   localGetSupportingVertexWithoutMargin(const btVector3& vec)const;
    virtual void    batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const;
    
    //debugging
    virtual const char* getName()const {return "ConvexTrimesh";}
    
    virtual int getNumVertices() const;
    virtual int getNumEdges() const;
    virtual void getEdge(int i,btVector3& pa,btVector3& pb) const;
    virtual void getVertex(int i,btVector3& vtx) const;
    virtual int getNumPlanes() const;
    virtual void getPlane(btVector3& planeNormal,btVector3& planeSupport,int i ) const;
    virtual bool isInside(const btVector3& pt,btScalar tolerance) const;

    
    virtual void    setLocalScaling(const btVector3& scaling);
    virtual const btVector3& getLocalScaling() const;

    void calculatePrincipalAxisTransform(btTransform& principal, btVector3& inertia, btScalar& volume) const;

};



#endif //CONVEX_TRIANGLEMESH_SHAPE_H