Read JT for IGES conversion
A JT-to-IGES workflow combines the JT reader with the IGES writer. Use it when the receiving application needs IGES data from an existing JT model.
JT can contain stored visualization meshes, embedded Parasolid BRep, or both. Select the representation needed for the destination before reading the assembly. The Parasolid interface imports precise geometry only when the JT file contains Parasolid BRep data.
Choose the geometry to deliver through IGES
For a mesh route, select a suitable stored level of detail or tessellate the imported Parasolid BRep with the required deflection. For a precise-geometry route, use the embedded BRep; a mesh-only JT file cannot supply the original CAD surfaces.
Transfer supported BRep curves and surfaces with the OCCT IGES writer. Select the geometry and topology representation accepted by the receiving CAD application. This is a precise-source route; a stored visualization mesh does not supply the original analytic geometry.
Validate the IGES result
Check part placements and repeated instances as well as names, colors and transparency. A stored coarse level of detail cannot regain surface detail merely by changing file format.
Reimport the IGES into the destination and check units, open boundaries and surface coverage. Determine whether downstream sewing or healing is required. Keep richer assembly relationships and attributes separately when the selected IGES mapping cannot preserve them.
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.