Public Member Functions | Public Attributes | Private Attributes

btTriangleMesh Class Reference

The btTriangleMesh class is a convenience class derived from btTriangleIndexVertexArray, that provides storage for a concave triangle mesh. More...

#include <btTriangleMesh.h>

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List of all members.

Public Member Functions

 btTriangleMesh (bool use32bitIndices=true, bool use4componentVertices=true)
bool getUse32bitIndices () const
bool getUse4componentVertices () const
void addTriangle (const btVector3 &vertex0, const btVector3 &vertex1, const btVector3 &vertex2, bool removeDuplicateVertices=false)
 By default addTriangle won't search for duplicate vertices, because the search is very slow for large triangle meshes.
int getNumTriangles () const
virtual void preallocateVertices (int numverts)
virtual void preallocateIndices (int numindices)
int findOrAddVertex (const btVector3 &vertex, bool removeDuplicateVertices)
 findOrAddVertex is an internal method, use addTriangle instead
void addIndex (int index)
 addIndex is an internal method, use addTriangle instead

Public Attributes

btScalar m_weldingThreshold

Private Attributes

btAlignedObjectArray< btVector3m_4componentVertices
btAlignedObjectArray< float > m_3componentVertices
btAlignedObjectArray< unsigned
int > 
m_32bitIndices
btAlignedObjectArray< unsigned
short int > 
m_16bitIndices
bool m_use32bitIndices
bool m_use4componentVertices

Detailed Description

The btTriangleMesh class is a convenience class derived from btTriangleIndexVertexArray, that provides storage for a concave triangle mesh.

It can be used as data for the btBvhTriangleMeshShape. It allows either 32bit or 16bit indices, and 4 (x-y-z-w) or 3 (x-y-z) component vertices. If you want to share triangle/index data between graphics mesh and collision mesh (btBvhTriangleMeshShape), you can directly use btTriangleIndexVertexArray or derive your own class from btStridingMeshInterface. Performance of btTriangleMesh and btTriangleIndexVertexArray used in a btBvhTriangleMeshShape is the same.

Definition at line 27 of file btTriangleMesh.h.


Constructor & Destructor Documentation

btTriangleMesh::btTriangleMesh ( bool  use32bitIndices = true,
bool  use4componentVertices = true 
)

Definition at line 21 of file btTriangleMesh.cpp.


Member Function Documentation

void btTriangleMesh::addIndex ( int  index  ) 

addIndex is an internal method, use addTriangle instead

Definition at line 65 of file btTriangleMesh.cpp.

void btTriangleMesh::addTriangle ( const btVector3 vertex0,
const btVector3 vertex1,
const btVector3 vertex2,
bool  removeDuplicateVertices = false 
)

By default addTriangle won't search for duplicate vertices, because the search is very slow for large triangle meshes.

In general it is better to directly use btTriangleIndexVertexArray instead.

Definition at line 125 of file btTriangleMesh.cpp.

int btTriangleMesh::findOrAddVertex ( const btVector3 vertex,
bool  removeDuplicateVertices 
)

findOrAddVertex is an internal method, use addTriangle instead

Definition at line 79 of file btTriangleMesh.cpp.

int btTriangleMesh::getNumTriangles (  )  const

Definition at line 133 of file btTriangleMesh.cpp.

bool btTriangleMesh::getUse32bitIndices (  )  const [inline]

Definition at line 43 of file btTriangleMesh.h.

bool btTriangleMesh::getUse4componentVertices (  )  const [inline]

Definition at line 48 of file btTriangleMesh.h.

void btTriangleMesh::preallocateIndices ( int  numindices  )  [virtual]

Reimplemented from btTriangleIndexVertexArray.

Definition at line 153 of file btTriangleMesh.cpp.

void btTriangleMesh::preallocateVertices ( int  numverts  )  [virtual]

Reimplemented from btTriangleIndexVertexArray.

Definition at line 142 of file btTriangleMesh.cpp.


Member Data Documentation

Definition at line 33 of file btTriangleMesh.h.

Definition at line 32 of file btTriangleMesh.h.

Definition at line 30 of file btTriangleMesh.h.

Definition at line 29 of file btTriangleMesh.h.

Definition at line 34 of file btTriangleMesh.h.

Definition at line 35 of file btTriangleMesh.h.

Definition at line 39 of file btTriangleMesh.h.


The documentation for this class was generated from the following files: