Data Structures | |
struct | A3DTopoBrepDataData |
BrepData structure. More... | |
Detailed Description
Entity type is kA3DTypeTopoBrepData.
Orientations
Here are some important points about A3DTopoBrepData entity orientation:
- Edges are implicitly oriented from the Start vertex toward the End vertex.
- 3D curves referenced by edges are oriented from the Start vertex toward the End vertex.
- Co-edge has two flags that describe orientation:
- Orientation with loop, which relates to the corresponding edge.
- Orientation UV with loop, which relates to the space parametric curve attached to the co-edge, if defined.
- Loop is oriented regarding Ampere rule (in surface parametric space).
- Surface is oriented with the shell so that normals point from the material to the void.
Generally, a face containing a hole is defined with two loops having the same orientation. The outside loop is defined by the m_uiOuterLoopIndex
member of an A3DTopoFaceData structure, regardless of orientation. To get the real face normal vector, you must consider the surface normal vector and the m_pucOrientationWithShell
member of the A3DTopoShellData structure.
sa A3DTopoBrepData, A3DTopoBrepDataData, A3DTopoBrepDataGet, A3DTopoBrepDataCreate
Typedef Documentation
◆ PFA3DTopoBrepDataGet
typedef A3DStatus( * PFA3DTopoBrepDataGet) (const A3DTopoBrepData *pBrep, A3DTopoBrepDataData *pData) |
Populates the A3DTopoBrepDataData structure.
- Version
- 2.0
◆ PFA3DTopoBrepDataCreate
typedef A3DStatus( * PFA3DTopoBrepDataCreate) (const A3DTopoBrepDataData *pData, A3DTopoBrepData **ppBrep) |
Creates an A3DTopoBrepData from an A3DTopoBrepDataData structure.
- Version
- 2.0
◆ PFA3DTopoBrepDataGetFaces
typedef A3DStatus( * PFA3DTopoBrepDataGetFaces) (A3DTopoBrepData const *psBrepData, A3DUns32 *psNbFaces, A3DTopoFace ***papsFaces) |
Return all A3DTopoFace from an A3DTopoBrepData.
- Version
- 8.2
◆ PFA3DTopoBrepDataGetEdges
typedef A3DStatus( * PFA3DTopoBrepDataGetEdges) (A3DTopoBrepData const *psBrepData, A3DUns32 *piNbEdges, A3DTopoEdge ***papsEdges) |
Return all A3DTopoEdge from an A3DTopoBrepData.
- Version
- 8.2
◆ PFA3DTopoFaceGetShellAndOrientation
typedef A3DStatus( * PFA3DTopoFaceGetShellAndOrientation) (A3DTopoBrepData const *psBrepData, A3DTopoFace const *psFace, A3DTopoShell const **ppsShell, A3DUns8 *pusOrientation) |
Return the owning A3DTopoShell of the A3DTopoFace and the orientation between them inside the given A3DTopoBrepData.
- Note
- Possible values for the pusOrientation are as follows:
- 0: Opposite orientation
- 1: Same orientation for face and shell
- 2: Unknown orientation
- Version
- 11.1
◆ PFA3DTopoFaceGetShell
typedef A3DStatus( * PFA3DTopoFaceGetShell) (A3DTopoBrepData const *psBrepData, A3DTopoFace const *psFace, A3DTopoShell const **ppsShell) |
Return the owning A3DTopoShell of the A3DTopoFace inside the given A3DTopoBrepData.
- Version
- 8.2
◆ PFA3DTopoLoopGetFace
typedef A3DStatus( * PFA3DTopoLoopGetFace) (A3DTopoBrepData const *psBrepData, A3DTopoLoop const *psLoop, A3DTopoFace const **ppsFace) |
Return the owning A3DTopoFace of the A3DTopoLoop inside the given A3DTopoBrepData.
- Version
- 8.2