The Ground Point filter defines the set of points that are used to construct a surface which is used to compute the heights for determining if a point fits within any of the defined range filters. The ground point filter can be modified using the 'Ground Points' command. You may modify the ground filter parameters within the Live View Point Filter based on classification, return combination and absolute elevation range values.

How to Modify the Ground Point Filter

Ground Filter... Button

1. Within the Height Filter Property Page, click the 'Points." command button.
2. Set the filter parameters in the Live View (Edit PCT Point Filter).