Clip Outside is a surface item modification tool. You might be interested in cutting a specific area from surface. Virtual Surveyor allows you to remove TIN segments that are outside of a selected boundary. 

The Clip Outside button appears in the TOOLS for Surface tab and works only if both a surface and a boundary are selected. 

Quick Usage Guide

  1. Select the surface and the boundary (hold Ctrl on your keyboard when clicking the items).
  2. Go to the SELECTION TOOLS tab.
  3. Click Clip Outside.
  4. The triangles outside the boundary are removed from the surface. 
    1. The triangles crossed by the boundary are cut out to fit inside the boundary.

Where to Use the Clip Outside Tool

  • Use Clip Outside to create a smaller surface that focuses on your area of interest.

Tips and Tricks

  • The elevation of the clipped surface is exactly the same as the elevation of the original surface. 
    • The elevations of the boundary vertices are not incorporated in the surface item.
  • After clipping, the external part of the original surface is deleted.
  • It is possible to clip outside of multiple boundaries within a surface at the same time by selecting the surface along with all the boundaries.