Offset Surfaces

How to create an offset surface with sharp edges?


How to create an offset surface with sharp edges?

  • If an edge is smooth, it is recomputed by the offset operation.
  • If an edge is sharp, it is recomputed by intersecting the adjacent offset faces.
Let's suppose that your initial surface is the one below.
The Connect Checker analysis detects a max value of 3.1deg for the tangency continuity of internal edges.
If you try to offset the surface with the default options, the operation sometimes does not complete, a warning message is issued and tags are displayed in the 3D geometry. You are in the case where there is a one or more sharp edges.

Workaround

Perform a healing (in tangency) on the initial surface prior to offsetting the surface. The purpose of this operation is to smooth the surface to be offset.
In the Healing Definition dialog box, specify a Tangency Angle greater than the maximum value detected by the connect checker. The Tangency Objective should be 0.5deg.
 
For more details about offset surfaces, refer to Creating Offset Surfaces.