Arbortext IsoDraw > Data Exchange Reference > Image File Formats > IGES > Preferences for Export > Restrictions
  
Restrictions
Fonts
All text elements are saved in the IGES standard font. Since it is only possible in IGES to specify the height and width of a text, the sizes will differ slightly from the representation in Arbortext IsoDraw. If you want to use a special font type in IGES, change the font table in the file OptIGES.prf.
Patterns and Hatchings
Bitmap patterns and hatchings are not transferred.
Masked Elements
The element used as a mask and all masked elements are grouped together, but remain visible.
Image Elements and EPS Documents
These elements cannot be converted since IGES has no corresponding element types.
Conversion Notes
When exporting Arbortext IsoDraw files, some of the elements will be converted into several IGES elements, since IGES cannot recognize e.g. ellipses with blends. The following table summarizes how the element types are assigned.
Arbortext IsoDraw element
is converted to
Line/polyline
110
Line
Rectangle
110
Line
Ellipse
104
Elliptical Arc
112
Parametric Spline Curve
(for blends)
Bézier path
Parametric Spline Curve
Inner thread
As several ellipses
Outer thread
As several ellipses
Polygon
110
Line
Marker
-
No conversion
Text
124
Transformation Matrix
212
General Note
112
Parametric Spline Curve
(text background)
Callout,consisting of individual elements. These can be: Text, line, polygon, rectangle, ellipse. The conversion of these individual elements corresponds to that of the Arbortext IsoDraw elements listed.