Vertex defined with multiple positions

Detailed Description

group a3d_multiple_vertex

Entity type is kA3DTypeTopoMultipleVertex.

A multiple vertex is defined as the average position of several 3D points, which are typically the endpoints of edge curves that end at this vertex.

../../_images/A3DPRCTopologyMultipleVertex.jpg

Warning

In general, no constraint is given to the 3D points stored in the array referenced by the A3DTopoMultipleVertexData::m_pPts member. In particular, the same point (same coordinates) may appear multiple times in that array. This is a common behavior, and all these points must be taken into account to evaluate the tolerance.

Function Documentation

A3DStatus A3DTopoMultipleVertexGet(const A3DTopoMultipleVertex *pMultipleVertex, A3DTopoMultipleVertexData *pData)

Populates the A3DTopoMultipleVertexData structure.

Version
2.0

Return values:
  • A3D_INITIALIZE_NOT_CALLED –
  • A3D_INVALID_DATA_STRUCT_SIZE –
  • A3D_INVALID_DATA_STRUCT_NULL –
  • A3D_INVALID_ENTITY_NULL –
  • A3D_INVALID_ENTITY_TYPE –
  • A3D_SUCCESS –
Returns:

A3D_SUCCESS on success, or an error code on failure
A3DStatus A3DTopoMultipleVertexCreate(const A3DTopoMultipleVertexData *pData, A3DTopoMultipleVertex **ppMultipleVertex)

Creates an A3DTopoMultipleVertex from an A3DTopoMultipleVertexData structure.

Version
2.0

Return values:
  • A3D_INVALID_DATA_STRUCT_SIZE –
  • A3D_INVALID_DATA_STRUCT_NULL –
  • A3D_SUCCESS –
Returns:

A3D_SUCCESS on success, or an error code on failure