Read OCCT BRep for STEP conversion
A OCCT BRep-to-STEP workflow combines the OCCT BRep reader with the STEP writer. Use it when the receiving application needs STEP data from an existing OCCT BRep model.
Read native OCCT BRep shapes from BREP or SHAPE files. This provides geometry and topology for modeling or tessellation. A standalone shape file is not an XDE document and should not be assumed to contain assembly names, colors or materials.
Configure the STEP geometry and document mapping
Use the imported shapes directly for a precise CAD writer, or generate surface triangulation for a mesh writer. If the input contains open shells, faces or wires, select the geometry appropriate to the target instead of assuming every shape is a solid.
Write the imported model through the OCCT STEP interface. STEP supports BRep and mesh workflows, so choose the representation supported by the receiving application. Use the document layer when names, colors and assembly relationships are available and need to be transferred.
Validate the STEP result
If application-owned labels, placements or appearance must accompany the shape, supply them explicitly in the document passed to the writer. Keep this enrichment distinct from information read from the BRep file.
Reopen the STEP file in the destination and compare geometry coverage, placements, names and colors. A mesh representation remains polygonal inside STEP. If the next task requires solid modeling, verify that the source and output contain the required BRep geometry.
For a production pipeline, keep a representative source file and its expected geometry and attributes with the conversion settings. Discuss conversion integration with the source and destination applications, or compare the supported format interfaces.