vtGeom Class Reference
[Scene Graph]

Inheritance diagram for vtGeom:

[legend]List of all members.

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Detailed Description

The vtGeom class represents a Geometry Node which can contain any number of visible vtMesh objects.

A vtGeom also manages a set of Materials (vtMaterial). Each contained mesh is assigned one of these materials, by index.

This separation (Group/Mesh) provides the useful ability to define a vtMesh once in memory, and have multiple vtGeom nodes which contain it, which permits a large number of visual instances (each with potentially different material and transform) with very little memory cost.

Public Member Functions
void	Release ()
void	AddMesh (vtMesh *pMesh, int iMatIdx)
void	RemoveMesh (vtMesh *pMesh)
void	AddTextMesh (vtTextMesh *pMesh, int iMatIdx)
unsigned int	GetNumMeshes () const
vtMesh *	GetMesh (int i) const
vtTextMesh *	GetTextMesh (int i) const

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Member Function Documentation

void vtGeom::AddMesh (  vtMesh *  pMesh, int  iMatIdx )

Add a mesh to this geometry. Parameters: pMesh  The mesh to add iMatIdx  The material index for this mesh, which is an index into the material array of the geometry.

void vtGeom::AddTextMesh (  vtTextMesh *  pMesh, int  iMatIdx )

Add a text mesh to this geometry. Parameters: pMesh  The mesh to add iMatIdx  The material index for this mesh, which is an index into the material array of the geometry.

vtMesh * vtGeom::GetMesh (  int  i  )  const

Return a contained vtMesh by index.

unsigned int vtGeom::GetNumMeshes (   )  const

Return the number of contained meshes.

vtTextMesh * vtGeom::GetTextMesh (  int  i  )  const

Return a contained vtTextMesh by index.

void vtGeom::Release (   )  [virtual]

Releases a node. Use this method instead of C++'s delete operator when you are done with a node. Internally, the node is reference counted so it is not deleted until all references to it are removed. Reimplemented from vtNode.

void vtGeom::RemoveMesh (  vtMesh *  pMesh  )

Remove a mesh from the geomtry. Has no effect if the mesh is not currently contained.

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