Da ich immer wieder gefragt werde, welche Ausprägungen denn Cinema 4D von Maschinenbau Programmen einlesen kann hier die Aufstellung. Bitte sagt dem IGES Lieferant Bescheid damit der Euch die funktionierenden Extensions ausliest:

The following are the supported 3D entities:
• 106 - 2D and 3D point set data (forms 1, 2, 3)
• 106 - 2D and 3D polygonal or lineset data (forms 12, 13, 14)
• 108 - Bounded plane (form 1)
• 110 - Independent line sets
• 114 - Parametric spline surface
• 118 - Ruled surface
• 120 - Surface of revolution
• 122 - Tabulated surface
• 128 - Rational B-Spline surface All of the above entities will be converted into legal and clean trimmed NURB patches by the import converter.

For the 144 trimmed surface entity, the following 3d surface types are supported as surfaces which can be trimmed by a NURB curve:
• 108 - Bounded plane (form 0, unbounded plane)
• 114 - Parametric spline surface
• 118 - Ruled surface
• 120 - Surface of revolution
• 122 - Tabulated surface
• 128 - Rational B-Spline surface

The following are the supported 2D curve types:
• 100 - Circular arc
• 102 - Composite curve
• 104 - Conic arc
• 106/12 - Piecewise linear 3d curve (3d line segments)
• 110 - Line
• 112 - Parametric B-Spline curve
• 126 - Rational B-Spline curve All of the above entities will be converted into legal and clean NURB trim curves by the import converter.

And the following are the remaining supported IGES entities:
• 124 - Transformation matrix. All inherited hierarchy methods supported as well.
• 308 - Subfigure definition
• 314 - Color definition
• 402 - Group associativity
• 408 - Subfigure instance
• 416 - External file reference If any of the following 2d curve types are closed and not referenced by another entity then they will be turned into trimmed planar regions if the corresponding option is enabled on the dialog box:

• 100 - Circular arc
• 102 - Composite curve
• 104 - Conic arc
• 112 - Parametric B-Spline curve
• 126 - Rational B-Spline curve Unsupported IGES Entities

There are many IGES entities not supported (and not required) by this converter. The main IGES entities which are not supported are:
• 108 - Forms 0 and -1, unbounded plane (unless trimmed by curve)
• 130 - Offset curve
• 140 - Offset surface
• 141/143 - Bounded surface (use 142/144 trimmed surface instead)

The main IGES entities which use CSG and B-Rep geometry, but which are not supported by this IGES reader are:
• 150-169, Constructive Solid Geometry entities - 180-186, Manifold solid B-Rep entities