Use the Calculate Minimum Distance Between Surfaces command to list the shortest vertical distance between two surfaces.
You can use this command, for example, to calculate the clearance between a road surface and the bottom of a bridge. Optionally, you can draw the line identifying the shortest distance location.
If the surfaces are flat and there is more than one location with the shortest distance, the output is represented by a series of points, a line, or an area displayed as a closed polyline.
To identify the shortest distance between two surfaces
- Click Analyze tab
Ground Data panel
Minimum Distance Between Surfaces
.At the Command prompt, enter MinimumDistBetweenSurfaces. - In the drawing, select the first surface or press Enter to select it from the list.
- Select the second surface or press Enter to select it from the list.
- In the displayed prompt, select Y or N to specify whether you want to draw the marker line connecting the two points that lay at the shortest distance from one another.