How to adjust the height map with a Combo Overlay

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Please note: This page is currently being updated.

It is now possibe to change the Digital Terrain Model (DTM) of a project, by using a Combo Overlay.

In the following example the roads of the project area will be lowered with 20cm.

How to adjust the height map with a combo overlay.:
  1. Add a DTM Height Map Overlay to your project.
  2. Add an Average Overlay that selects a specified attibute. This can be a custom attribute or a more general one, such as NWB_ID.
  3. Add a Combo Overlay with the Height Map Overlay as input A, the Avg Overlay as input B, and with the formula: IF(GT(B, 0), SUB(A, 0.2), NO_DATA).
  4. This Combo Overlay displays a height map with all roads 2cm loewer, and all other areas as 'NO_DATA'.

These steps can be created by using the "Editor steps" template:

{{Editor steps|title=title|Step|Step|Step...}}