Importing IGES Files

The ACIS IGES translator provides bi-directional functionality for data translation between ACIS and the IGES (Initial Graphics Exchange Specification) format.

To import an IGES file:

  1. Select File and then Import.
  2. Select the file to be imported.
  3. Select IGES from the Files of type drop-down menu.
  4. Click Open. A new window will appear.
  5. Optionally specify any appropriate settings from this window.
  6. Click Finish.

Import Iges '<iges_filename>' [No_bodies] [No_surfaces] [No_curves] [No_vertices] [Group {'<name>'|<id>}] [Nofreesurfaces] [HEAL|noheal] [Logfile ['filename'] [Display]] [Show_Each] [Sort]

Import Options

It is possible to include free entities (vertices, curves and surfaces) in the file. Default operation is to read all entities in the file whether they are included as part of a body or are free. By using any of the options no_bodies, no_surfaces, no_curves, or no_vertices, the user may exclude certain types of free entities.

The group option of the import command will allow the user to create a group for each set of imported geometry. The newly created group can later be accessed using the name or id specified with the group option.

The nofreesurfaces option will automatically convert free surfaces to bodies. By default this option is off.

By default, bodies are automatically healed when imported - if this causes problems, you can disable this option by using the noheal argument.

The logfile option specifies a file where informational messages generated during import of the STEP file will be written. The display option will display the file.

The show_each option is a graphics option that applies to how the volumes are shown as they are imported. If there are multiple volumes in the file, the graphics display will be updated between each volume during import.

Normally the numerical IDs of the geometric entities contained in the ACIS model are used directly within Trelis. The sort option provides the capability to compress the IDs read from the ACIS file. The sort option does the same thing as the compress ids sort command, but combines it with the import command to remove a step in the process.

Note that the IGES import and export functionality might not be available on all 64-bit platforms.

See also Exporting IGES Files.