Structure to set the tessellation parameters. More...
Detailed Description
Structure to set the tessellation parameters.
- Version
- 3.0
Field Documentation
A3DETessellationLevelOfDetail A3DRWParamsTessellationData::m_eTessellationLevelOfDetail |
Enum to specify predefined values for some following members.
A3DDouble A3DRWParamsTessellationData::m_dChordHeightRatio |
Specifies the ratio of the diagonal length of the bounding box to the chord height. A value of 50 means that the diagonal of the bounding box is 50 times greater than the chord height. Values can range from 50 to 10,000. Higher values will generate more accurate tessellation.
A3DDouble A3DRWParamsTessellationData::m_dAngleToleranceDeg |
Specifies the maximum angle between two contiguous tessellation segments describing the curve of a topological edge for every face.
During tessellation, the curve describing the edge of a topological face will be approximated using straight line segments. m_dAngleToleranceDeg is the maximum angle between two consecutive segments.
Allowable values range from 10 to 40. Lower values will result in greater accuracy.
A3DDouble A3DRWParamsTessellationData::m_dMinimalTriangleAngleDeg |
Specifies the angle between two contiguous segments of wire edges for every face. Allowable values range from 10 through 30.
- Deprecated:
- This is a deprecated feature.
A3DDouble A3DRWParamsTessellationData::m_dMaxChordHeight |
Specifies the maximum distance between the original geometric surface specified in the CAD file and the resulting tessellation. Be careful, very small values can generate very large tessellation files.
Conversely, very large values can generate inaccurate tessellation. In such cases, it may be better to use the m_dChordHeightRatio
member to scale this value relative to the object that's being tessellated.
- Note
m_dMaxChordHeight
is ignored ifm_bUseHeightInsteadOfRatio
isn't set to true.
A3DBool A3DRWParamsTessellationData::m_bAccurateTessellation |
Accurate tessellation. Uses standard parameters. 'A3D_FALSE' indicates the tessellation is set for visualization. Setting this value to 'A3D_TRUE' will generate tessellation more suited for analysis. Can be used with all TessellationLevelOfDetails.
A3DBool A3DRWParamsTessellationData::m_bAccurateTessellationWithGrid |
Enable accurate tessellation with faces inner points on a grid.
A3DDouble A3DRWParamsTessellationData::m_dAccurateTessellationWithGridMaximumStitchLength |
Maximal grid stitch length. Disabled if value is 0. Be careful, a too small value can generate a huge tessellation.
A3DBool A3DRWParamsTessellationData::m_bAccurateSurfaceCurvatures |
Take into account surfaces curvature in accurate tessellation to controle triangles elongation directions. Ignored if m_bAccurateTessellation
isn't set to true.
A3DBool A3DRWParamsTessellationData::m_bDoNotComputeNormalsInAccurateTessellation |
Do not compute surface normals in accurate tessellation. Ignored if m_bAccurateTessellation
isn't set to true.
A3DBool A3DRWParamsTessellationData::m_bKeepUVPoints |
Keep parametric points as texture points.
A3DBool A3DRWParamsTessellationData::m_bUseHeightInsteadOfRatio |
Use m_dMaxChordHeight instead of m_dChordHeightRatio if m_eTessellationLevelOfDetail = kA3DTessLODUserDefined.
A3DDouble A3DRWParamsTessellationData::m_dMaximalTriangleEdgeLength |
Maximal length of the edges of triangles. Disabled if value is 0. Be careful, a too small value can generate a huge tessellation.