fdw
03-04-2010, 11:13 AM
I have verry good Terraindata. I use in the gis-configuration - clutter:
Option 3
(The primary DEM has composite terrain an clutter elevations. The clutter database has terrain elevations only. Clutter heights are the difference between the two. Terrain elevations are taken from the clutter database. No clutter descriptions are available.)
The result is a very good terrain profile.
But the problem is to define/modify clutter description. Thats needed to calculate diffraction loss at different vegetation/buildings.
The diffraction-options in diffraction-module unfortunately have no effect by the calculation.
In terrain-module it is not possible to change cluttertype.
How can I use the perfect terraindata with subsequent determination of cluttertype like wet trees or so on?
Option 3
(The primary DEM has composite terrain an clutter elevations. The clutter database has terrain elevations only. Clutter heights are the difference between the two. Terrain elevations are taken from the clutter database. No clutter descriptions are available.)
The result is a very good terrain profile.
But the problem is to define/modify clutter description. Thats needed to calculate diffraction loss at different vegetation/buildings.
The diffraction-options in diffraction-module unfortunately have no effect by the calculation.
In terrain-module it is not possible to change cluttertype.
How can I use the perfect terraindata with subsequent determination of cluttertype like wet trees or so on?