Create a PolyNURBS surface on top of an existing triangular mesh. This is useful for quickly turning a complex structural optimization results into PolyNURBS surfaces.

Before you perform a fit operation, it is best to reduce the number of triangles first using the Simplify tool.
  1. On the ribbon, click the PolyNURBS tab.
  2. Click the Fit tool.

  3. Select a trimesh. Hold Ctrl or use box selection to select multiple objects.
  4. Choose from the following options:
    • Pure quad mesh: Select this option if you want the resulting PolyNURBS surface to be composed solely of 4-sided polygons.
    • Target Vertex Count: Enter the number of vertices you want the resulting PolyNURBS to contain.
    • Sharp Creases: Enter a value other than 0. A higher value corresponds to a stronger crease.
  5. Right-click and mouse through the check mark to exit, or double-right-click.
Tip: While this tool is intended to be used on faceted STL geometry, you can fit over any surface geometry.