Read IGES for ACIS SAT / SAB output
A IGES-to-ACIS SAT / SAB workflow connects the IGES reader to the ACIS SAT / SAB writer. Select the model items and output representation needed by the receiving application.
Read IGS or IGES geometry with the OCCT IGES interface. Inspect the transferred curves, surfaces and topology before conversion: an IGES model may contain disconnected surfaces or wire geometry rather than a closed solid.
Translate precise geometry into ACIS
For mesh output, tessellate the imported faces and inspect boundaries between adjacent surfaces. Curves alone do not define a surface mesh. For BRep output, determine whether sewing or shape healing is needed before writing the translated geometry.
Use the ACIS writer for supported BRep geometry and select SAT or SAB for the receiving application. The published component description lists output through ACIS version 7; confirm the delivery and recipient version. A mesh-only input needs another route rather than an implied reconstruction of smooth CAD surfaces.
Check the ACIS SAT / SAB result
Check units, surface coverage, open boundaries and tolerances. A successful translation does not establish watertightness or restore product structure that the source IGES file did not contain.
Reopen the file in the recipient and check topology, surface coverage, units and supported attributes. Include translated curved surfaces and multi-body models in the comparison. Reading a file successfully is only the first check when the next task is a modeling operation.
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.