Use a System from Geometry () coordinate system to create a coordinate system that is aligned with a work plane in a 3D geometry sequence or geometry part. Such a coordinate system makes it possible to specify geometric primitives and to transform geometry features using a coordinate system that is aligned with the surface of some other geometric primitive, for example. It can also make it easier to specify the directions of anisotropic materials.

If this coordinate system is added as a subnode to a Combined System node, define where it will be active using a selection in the Geometric Entity Selection section. Also, the Name and Coordinate names fields and the Frame list are not available in this case.

The Frame list is the same as for the Cylindrical System or Mapped System.

In the Coordinate names table, the Coordinate names are entered — x1, x2, and x3 by default.

If there are work planes both in the geometry and in some geometry parts, you can choose the source of the work plane from the Take work plane from list: This geometry (the default), to use a work plane from the geometry sequence in the component, or a part instance with a work plane that is used in the geometry.

From the Work plane list, select any of the work planes in the geometry sequence or part instance. The selected work plane then defines the coordinate system.