Dear Esri community,
first of all: My english got a little rusty over the years, but please bear with me.
I'm quite new to learning and using ArcGIS Pro, and I was asked to perform a visibilty analysis for a race track. For this task I have 3 features/datasets at hand:
- a DEM raster dataset (elevation model) of the survey area: (the attribute table contains the attributes "Object_ID"; "Value" with the z-values and "Count", which says how many cells with the same z-value exist in this raster dataset)
- a line/polyline feature showing the race track
- a polygon feature with the existing forest areas in the survey area (the attribute table shows 4 attributes: "object-ID", the attribute "forest" with value 1 for forested areas and 0 for unforested areas, as well as "shape_length" and "shape-area")
My task is to show, from which surrounding areas the race track can be seen, considering the view point of a human to be 1,5 meters above ground level, considering forested areas to be 20 m in hight and considering the race track to be 1 meter above the ground. I basically know how to use the "visibility" tool but I have problems preparing the data to do so, since the "forest" polygon layer doesn't contain any hights. I already converted the "forest" polygon layer into a raster dataset with the same cell size as the DEM elevation model but now I don't know how to add the 20 meter offset to the cells, which are considered "forested" (value 1 in the "forest" polygon feature and the converted "forest" raster dataset). Do I need to merge the two raster datasets into one or am I thinking too complicated? If I need to merge them, which tool do I need to use? Questions over questions so thank you all in advance for your kind help!
Greetings
Asayo
