The Step Height View mode is used to compute the distance between two distinct levels of a stepped surface.  A polyline region is defined on each surface.  A least squares plane is then computed for each region.  The differences between the computed planes is then reported.

Edit Region #1

Selecting this option places region #1 in edit mode.  Clicking the surface image when region #1 is in edit mode will add a polyline point to this region.

Clear Region #1

Selecting this option removes all of the defined polypoints from region #1.

Edit Region #2

Selecting this option places region #2 in edit mode.  Clicking the surface image when region #2 is in edit mode will add a polyline point to this region.

Clear Region #2

Selecting this option removes all of the defined polypoints from region #2.

Compute Step Height

Clicking the Compute toolbar button will compute all of the results for the step height measurement.

Show/Hide

Use this toolbar button to show and hide the surface height map.