Define Z

Requires an LP360 Geospatial Standard and above, LP360 Drone, or LP360 Land Standard license.

The Define Z tool on the Volume tab of the ribbon allows you to control the elevation reference for Base polygons during volume calculations. Instead of relying solely on point cloud-derived surfaces, you can:

• Set Area(s) Z: Set a fixed Z value for the entire polygon, creating a constant elevation reference.

• Shift Area(s): Apply a Z offset (shift) to adjust the polygon’s elevation relative to its current position.

• Apply Auto-Z to Area(s): Reapply Auto-Z to conflate the polygon back to the LAS data surface if needed.

Important Notes:

• These adjustments apply to the entire polygon, not individual vertices.

• Individual vertices can still be Z-adjusted manually by using the normal Feature Edit tools such as selecting them and using right-click shortcuts.  See Edit Vertices – LP360 for details.