← CAD and mesh conversion guides

OCCT conversion workflows

STEP XML to JT

Convert STEP XML to JT. Build JT visualization meshes with supported names, colors and assembly placements.

Build this conversion into your application with OCCT readers, writers and the commercial components identified below.

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Input interface
OCCT3D STEP XML reader
Processing route
CAD to mesh
Output interface
OCCT3D JT writer

Read STEP XML for JT conversion

A STEP XML-to-JT workflow combines the STEP XML reader with the JT writer. Use it when the receiving application needs JT data from an existing STEP XML model.

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.

Build a JT visualization model

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.

Use the OCAF-to-JT converter for supported hierarchy, names, colors and mesh representations. Configure tessellation and any required levels of detail around the viewing task. This output route creates a visualization representation; it does not promise Parasolid BRep export inside JT.

Validate the JT 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.

Select a JT version accepted by the recipient and check part positions, geometry coverage and appearance there. Compare both the full assembly and selected parts. If later processing requires precise CAD surfaces, retain the source BRep alongside the visualization derivative.

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.

Conversion integration

Build a STEP XML to JT workflow

Share the source and receiving applications, representative files, required attributes and throughput. We can scope SDK evaluation or an integrated conversion service.