To Simplify Surfaces

When you simplify a surface, you reduce the number of points or triangles in a TIN surface, while preserving the surface accuracy.

You can remove the specified amount of points in the specified surface region. The command does not remove points on breaklines and on the surface border.

1. Select a surface. On the Surface tab, Modify panel, click Edit Surface drop-down Simplify Surface Find.
2. If more than one surface is available in the drawing, click the surface that you want to simplify or press Enter to select a surface in the Select A Surface dialog box.
3. Follow the Simplify Surface wizard sequence and the command line prompts to specify:
   • A simplification method.
   • The surface region that you want to simplify.
   • Point reduction options.
4. Click Apply.

   The total number of points to be removed is displayed.

5. Click Finish to remove the points.

The Simplify Surface operation appears in the surface definition in the Prospector tree.

Tutorial Exercise: Simplifying a Surface