I am trying to automate a calculation of the blocked fraction of a field of view from a point to a shapefile. I.e. find α in
, such that α / 360 gives me the fraction of the field of view covered by the shapefile in reference to the total field of view.
I know ArcGIS features a 'field of view' based on a DEM/raster (right?), but I am looking for a simpler application, between a simple point and polygon shape.
Is anyone aware of software / a function that is able to do this? It is very easy to do by hand, but I need to process roughly 250 cases, so I thought I'd better ask for other suggestions :)