Read STEP XML for OCCT BRep output
A STEP XML-to-OCCT BRep workflow connects the STEP XML reader to the OCCT BRep writer. Select the model items and output representation needed by the receiving application.
Read STPX, STPA, STPZ or STPZX with the STEP XML component. The interface supports BRep and mesh representations together with assemblies, names, colors and attributes available in the native STEP data used by the file.
Store imported geometry as native OCCT shapes
Inspect whether each selected part contains BRep, mesh or both. A mesh writer can reuse suitable triangles or tessellate CAD surfaces. A precise-geometry writer needs BRep input; storing triangles in a STEP XML file does not reconstruct analytic surfaces.
Write the imported precise shapes using native OCCT BRep storage. This route is useful for retaining translated geometry for subsequent OCCT modeling and analysis. It requires BRep source geometry and does not recover analytic surfaces from a mesh-only representation.
Check the OCCT BRep result
Check nested assembly placements and the relationship between attributes and their model items. Information retained by the reader still needs a compatible mapping in the destination writer.
Read the BRep file back with the intended OCCT delivery and compare shape types, tolerances and geometry coverage. A standalone BRep file does not carry the complete XDE assembly and attribute document; choose XCAF storage when that document-level information must be preserved.
Discuss this conversion with the producing and receiving applications, representative files and required geometry and attributes. Compare the reader/writer catalog when a different representation is needed.