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mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-04-21 10:13:43 +03:00

2 Commits

Author SHA1 Message Date
anv
2b5ee7c791 0033484: Data Exchange, Step Import - Pretessellated geometry is translated incompletely
Added proper translation for TessellatedCurveSet and ComplexTriangulatedSurfaceSet.
2023-09-22 05:57:01 +01:00
snn
cec41bb93d 0030024: Data Exchange - STEP, IGES export support of BRep shapes based on tessellated geometry
Support of reading and writing tessellated geometry is added for the following STEP entities:
- triangulated face
- complex triangulated face
- tessellated shell
- tessellated solid
- tessellated shape representation

Models without BRep geometry (mesh formats like STL, OBJ and so on) are supported for writing to STEP.

New parameters are added to enable/disable tessellated geometry reading and writing:
- read.step.tessellated (On/Off/OnNoBRep) (On by default)
- write.step.tessellated (On/Off/OnNoBRep) (OnNoBRep by default)

OnNoBRep - tessellation is read/written only for entities for which there is no BRep representation.

Faces with poly triangulation are written in STEP as triangulated face entities with one coordinates list per face.
Only one poly triangulation per face (returned by BRep_Tool::Triangulation) is written to STEP.
2022-06-03 17:44:17 +03:00