... For practical reason, the shapes (i.e. the visible area) should be limited to 1000 Meters distance. However, I have no idea how to get this done. Anyone here who can advice me? Thx!
Visibility... and specify an outer radius
Other requirements are listed in the tool, like having a raster etc
Your title is confusing, so perhaps a screen grab of the tool you are using and the inputs and the result so far would help
Retrieving data ...