Volume points

Choose Volume Points in the Terrain workspace, or open point editing for a supported surface or height-points layer. The canvas shows the point handles and the Inspector shows Volume points. Wait for any component preparation message to finish before editing.

Choose Raise by for a height contribution or Set level to for the absolute-height mode. Check this before entering elevations: the same numeric value has a different meaning in the two modes.

Click the surface to add a point, then select a handle or a row in Points. Use Height, Radius and Falloff to control the selection. Multiple selected points can be edited together; differing field values appear as mixed. Heights may be negative. Unit fields follow metric or imperial project settings and accept explicit units.

Interpolation offers Smooth, Linear and Stepped. In Smooth mode, Smooth Surface is available when at least two points exist. Inspect the whole surface after changing interpolation or smoothing; do not assume each overlapping point independently pins the final result.

Open Curves for the selected point’s X and Y profiles, or Points for its list. Delete selected points removes the current selection; individual rows can also delete a point. The last point can be deleted too.

Choose Done to leave point editing. Changes use drawing history. Undo reverses a recorded edit; changing which point is selected is not the same as changing its height.