From Surface Snap

Use this command to calculate the elevation of a point on a 3D surface. The elevation of the X,Y position on the surface will be used as the Z value.

From Surface Snap can be used in these controls:

To use a From Surface Snap:

  1. While in an elevation control, right-click in a graphics view, and select Point to Point Snap from the context menu. The Point to Point Snap command pane displays.
  2. Pick a surface in the view, or select one from the Surface list.
  3. Pick a point on the selected surface, or type a coordinate in the Point box. The elevation at that point on the surface is recorded, and the command pane returns to the previous command, if necessary.

Related topics

Understanding COGO Controls

COGO Expressions, Units, and Entry Formats

Snaps Modes and Commands