IGES 2D: Import

This task shows you how to import into a CATDrawing document the data contained in a 2D IGES file.
Once imported, the data can be handled just as if it were created as a CATDrawing. 
The table entitled What about the elements you import ? provides information on the entities you can import.
You can find further information in the Advanced Tasks:

Statistics about each import operation can be found in the report file.

  1. Select the File > Open command.
    The File Selection dialog box is displayed.

  2. If the directory contains many different types of files you may wish to set the .ig2 extension in the
    Files of type field. This displays all files with the extension "ig2" contained in all the selected directory.

  3. Select the .ig2 file of your choice and click Open.
    This creates a new document similar to a CADrawing document in all respects and containing all 2D geometry
    and annotations. The data is now available in your session.

  Several 2D IGES import options can be customized:


V5 determines systematically and automatically the most suitable format (A0 ISO, A1 ISO, etc.)
for each sheet (layout) i.e. V5 chooses the smallest format in which the drawing can be totally included:

  • If the standard is ISO, V5 chooses the format among A0, A1, A2, etc.
  • If the standard is ANSI, V5 chooses the format among A, B, C, etc.
  • If no standard format fits the sheet, the format is set to the largest one i.e. A0 ISO and
    made invisible with a message "No standard format can be applied to this sheet" in the report file.
  • If you are not satisfied with this automatic result, use the Page Setup command to modify the format.

Information on what has been determined automatically is written in the report file:

For more information on Formats, see the Defining a Sheet chapter in the Generative Drafting User's Guide.


Code pages

DBCS (Double Byte Character Set) Supported Code Pages are:

  • 932 (Japanese)
  • 936 (Simplified Chinese)
  • 950 (Traditional Chinese)
949 (Korean) is not supported.


Fonts are mapped with those defined by default in the standard.
See the Generative Drafting User's Guide for more information.

Report File

After the recovery of 2D IGES files, the system generates:

  • a report file (name_of_file.rpt) where you can find references about the quality of the transfer 

These files are created in a location referenced by 

  • the USERPROFILE variable on NT. Its default value is 
    Profiles\\user\\Local Settings\\Application \Data\\Dassault Systemes\\CATReport
    on NT (user being you logon id)

Always check the report file after a conversion ! Some problems may have occurred without been visually highlighted.


What about the Elements You Import?

To make sure the elements you need to handle in your session are those you expected,
here is a list presenting the IGES data supported when imported into a CATDrawing document:

Element type

Element number in IGES format

circular pattern 100
composite curve 102
conic arc 104
copious data 106
line 110
parametric spline curve 112
point 116
transformation matrix 124
rational B-spline curve 126
offset curve 130
angular dimension 202
arc length dimension 204
diameter dimension 206
flag note 208
general label 210
general note 212
leader 214
linear dimension 216
point dimension 220
radius dimension 222
general symbol 228
sectioned area 230
subfigure definition (detail) 308
associativity instance (group) 402
drawing 404
properties 406
single subfigure instance (ditto) 408
view 410