I am looking for areas in a city that are suited for setting up precipitation measuring stations. One constraint is, that the station has to be distant from each object at least two times the object's height.
I have a raster (14000 x 11000 cells, 2 m resolution) representing the height above the ground of every object in the city (buildings, vegetation etc.). An Approach to buffer relevant pixels didn't lead to a result due to limited computation power. My first idea was to translate this distance into an angle (26.57 deg) and run an analysis, that's giving the maximum viewing angle to the sky. If it's higher than 26.57, the cell is not suited. But I haven't found a tool to calculate exactly this for every raster cell.
What tool or alternative solution can I use to find suitable areas? I am using ArcGIS.