1 Terrain map
QGIS 3.34.1
https://qgis.org/download/
example of URL:
Google Satelite
https://mt1.google.com/vt/lyrs=s&x={x}&y={y}&z={z}
Mapzen Global Terrain https://s3.amazonaws.com/elevation-tiles-prod/terrarium/{z}/{x}/{y}.png
OpenStreetMap
http://tile.openstreetmap.org/{z}/{x}/{y}.png
1
from TiFF to GRD
DEM 0m
Clutter map
after preparing the clutter picture, you can convert from TIFF to GRC.
GM 26.0 supports GRC format
Polygon 3D map
Building polygon from OpenStreetmap
change the attribute of polygon
assumption: terrain 0m building height 5m
if few buildings, you can change the
AMSL(terrain + building hight) of
polygon manually
how can calculate AMSL for the all
building automatically, it's not find yet
save in the tab format