← CAD and mesh conversion guides

OCCT conversion workflows

DXF to OCCT BRep

Convert DXF to OCCT BRep. Prepare source geometry, select the target writer and verify placements and supported attributes.

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

Ask about this workflow
Input interface
OCCT3D DXF reader
Processing route
CAD and mesh exchange
Output interface
OCCT BRep writer

Read DXF for OCCT BRep output

A DXF-to-OCCT BRep workflow connects the DXF reader to the OCCT BRep writer. Select the model items and output representation needed by the receiving application.

Read DXF entities through the DXF component and identify curves, embedded BRep bodies and mesh data. DXF import and export support mesh workflows as well as BRep, but the actual source entities determine which path is available.

Store imported geometry as native OCCT shapes

Use existing mesh data or tessellate imported BRep faces for a polygonal target. A curve-only drawing requires surface construction before a surface-mesh export; this is a modeling step that cannot be inferred from the DXF extension.

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 drawing units, entity coverage and placements. Establish how layers, names and supported colors map to the receiving document instead of assuming that CAD drawing organization is identical to a scene hierarchy.

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.

Conversion integration

Build a DXF to OCCT BRep workflow

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