How to adjust the height map with a Combo Overlay
Revision as of 13:02, 11 April 2022 by Vincent@tygron.nl (talk | contribs)
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.:
- Add a DTM Height Map Overlay to your project.
- Add an Average Overlay that selects a specified attibute. This can be a custom attribute or a more general one, such as NWB_ID.
- 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).
- 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...}}