Morphing triangle regions defined by curves

You can morph regions on a model, using polygons to define the areas. Using polygons enables you to reshape up to three regions:

• within an inner curve
• outside an outer curve
• between the two curves

To use polygon regions:

1. Create the inner and outer polygons.

   Use the following example to identify the regions and the curves on a mesh:

   

   Inner transform region.

   Inner curve.

   Blend region.

   Outer curve.

   Outer transform region.

   Using this method, you can move a single point and blend the move into the rest of the model. This is useful to counteract the sagging of the centre of a part after manufacture.

   

   The example uses the centre of gravity to compensate for sag that occurs at the centre of a plate after it has been made. In this case the centre of the plate is moved by 2.0 and a smooth blend applied to the outer curve around the edge of the plate.

2. Select the mesh and click Mesh Tools tab > Triangles panel > Morph using Curves.
3. Morph the regions using the Morph Triangles using Curves dialog.