← CAD and mesh conversion guides

OCCT conversion workflows

STEP XML to STEP

Convert STEP XML to STEP or STP. Read STPX, STPA, STPZ and STPZX with BRep, mesh and supported assembly attributes in an OCCT3D workflow.

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 and mesh exchange
Output interface
OCCT STEP writer

Move STEP XML data into native STEP exchange

The STEP XML Reader & Writer supports STPX, STPA, STPZ and STPZX. A STEP XML-to-STEP route combines this reader with the native STEP writer to deliver STP or STEP output.

Both sides can participate in BRep and mesh exchange. The conversion should retain the representation required by the receiver rather than assume that XML input or native STEP output is limited to precise solids.

Carry the product organization with the geometry

The STEP XML component reads assemblies, names, colors and the native STEP attributes present in the XML data. Use an application document that retains these relationships during processing and output.

Check the part and subassembly structure, instance placements and required attributes after conversion. A mixed model may contain both BRep and tessellated items; include both kinds in the acceptance data when the receiving workflow uses them.

Select output for the receiving application

Specify the STEP configuration and representation accepted by the destination. Reopen the STP or STEP file there, then compare geometry or mesh coverage, names, colors and the attributes needed for the next operation. Any application processing between reading and writing should have its own recorded parameters.

This conversion changes the exchange representation without recovering missing design history or attributes absent from the source. For delivery in the opposite direction, see STEP to STEP XML. For a geometry-only mesh derivative, use STEP XML to STL.

Conversion integration

Build a STEP XML to STEP workflow

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