A3DRWParamsExportStlData Struct Reference

A structure that specifies parameters used to write the model file to STL format. More...

Data Fields

A3DBool m_bAccurateSurfaceCurvatures
 
A3DBool m_bAccurateTessellation
 
A3DBool m_bAccurateTessellationWithGrid
 
A3DBool m_bBinaryFile
 
A3DBool m_bKeepCurrentTessellation
 
A3DBool m_bUseHeightInsteadOfRatio
 
A3DDouble m_dAccurateTessellationWithGridMaximumStitchLength
 
A3DDouble m_dAngleToleranceDeg
 
A3DDouble m_dChordHeightRatio
 
A3DDouble m_dMaxChordHeight
 
More...
 
A3DDouble m_dMaximalTriangleEdgeLength
 
A3DDouble m_dMinimalTriangleAngleDeg
 
A3DEUnits m_eExportUnit
 
A3DETessellationLevelOfDetail m_eTessellationLevelOfDetail
 

Detailed Description

A structure that specifies parameters used to write the model file to STL format.

Version
10.2

Field Documentation

◆ m_bBinaryFile

A3DBool A3DRWParamsExportStlData::m_bBinaryFile

With a value of TRUE, compresses the STL file to reduce file size.

◆ m_eTessellationLevelOfDetail

A3DETessellationLevelOfDetail A3DRWParamsExportStlData::m_eTessellationLevelOfDetail

Enum to specify predefined values for some following members.

◆ m_dChordHeightRatio

A3DDouble A3DRWParamsExportStlData::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.

◆ m_dAngleToleranceDeg

A3DDouble A3DRWParamsExportStlData::m_dAngleToleranceDeg

Specifies the maximum angle between two contiguous segments of wire edges for every face. The value must be from 10 through 40.

◆ m_dMinimalTriangleAngleDeg

A3DDouble A3DRWParamsExportStlData::m_dMinimalTriangleAngleDeg

Specifies the angle between two contiguous segments of wire edges for every face. Allowable values range from 10 through 30.

◆ m_dMaxChordHeight

A3DDouble A3DRWParamsExportStlData::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 if m_bUseHeightInsteadOfRatio isn't set to true.

◆ m_bAccurateTessellation

A3DBool A3DRWParamsExportStlData::m_bAccurateTessellation

Accurate tessellation. Uses standard parameters. 'false' indicates the tessellation is set for visualization. Setting this value to 'true' will generate tessellation more suited for analysis. Can be used with all TessellationLevelOfDetails.

◆ m_bAccurateTessellationWithGrid

A3DBool A3DRWParamsExportStlData::m_bAccurateTessellationWithGrid

Accurate tessellation with faces inner points on a grid.

◆ m_dAccurateTessellationWithGridMaximumStitchLength

A3DDouble A3DRWParamsExportStlData::m_dAccurateTessellationWithGridMaximumStitchLength

Maximal grid stitch length. Disabled if value is 0. Be careful, a too small value can generate a huge tessellation.

◆ m_bAccurateSurfaceCurvatures

A3DBool A3DRWParamsExportStlData::m_bAccurateSurfaceCurvatures

Take into account surfaces curvature in accurate tessellation to controle triangles elongation directions. Ignored if m_bAccurateTessellation isn't set to true.

◆ m_bKeepCurrentTessellation

A3DBool A3DRWParamsExportStlData::m_bKeepCurrentTessellation

With a value of TRUE, keeps the current tessellation.

◆ m_bUseHeightInsteadOfRatio

A3DBool A3DRWParamsExportStlData::m_bUseHeightInsteadOfRatio

◆ m_dMaximalTriangleEdgeLength

A3DDouble A3DRWParamsExportStlData::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.

◆ m_eExportUnit

A3DEUnits A3DRWParamsExportStlData::m_eExportUnit

Unit of the exported model. STL files have no unit however this value allow you to define it. This scales the model to match the target unit. Default value is set to kA3DUnitMillimeter. Setting to kA3DUnitUnknown keeps the original unit.