Creating the inner and outer curves

Use one of the following methods to create the inner and outer curves:

• Sketch a curve on the model, using as many points as needed, and then click the first point to close the curve.
• Select an open model; the boundary is used as the curve. You can use triangle or closed polyline models.

  Use this option for the outer polygon, to create a curve around the boundary of the model. If you use this method, you can define an inner curve and blend from this to the edge of the model.

• Select a single point for the inner curve. This has the effect of creating a blend region from the model's centre of gravity to the outer curve.
• Use one of the options on the Morph triangles using Curves dialog.