IGES Entities Supported

The following table lists the valid IGES entities for import into Autodesk Simulation

Number Description
100 Circle/Arc (curve for trimming)
102 Composite Curve (list of curves for trimming)
104 Ellipse (curve for trimming)
106 Copious Data (for some CAD Systems, interpreted as a curve)
110 Line (curve for trimming)
112 Parametric Spline Curve (curve for trimming)
114 Parametric Spline Surface
116 Point (used for 190)
118 Ruled Surface
120 Surface of Revolution (some CAD systems incorrectly specified the beginning and ending angles in early files)
122 Tabulated Cylinder Surface
123 Direction (used for 190)
126 NURB Curve (curve for trimming)
128 NURB Surface
140 Offset Surface (can be applied to any surface type)
141 Boundary Entity
142 Curve on Parametric Surface (basic trimming curve)
143 Bounded Surface
144 Trimmed Surface
190 Parametric Plane
Note:
  • Autodesk Simulation only uses 141/143 and 142/144 combinations to describe trimmed surfaces.
  • The IGES file also supports some representation of B-Rep solids (186) that are not supported by Autodesk Simulation