So I have a list of points with their longitude and latitude (Lon_A, Lat_A and Lon_B, Lat_B). I also have a DEM layer from the SRTM for the relevant location. I need to check if line of sight exists between these point pairs. What I'm essentially doing is checking if it's possible to create a microwave link between given point pairs.
So in a nutshell If I have a data set of point pairs I need to get a Boolean output whether Line of Sight exists or not. Wondering if there's a way to do this using QGIS or GRASS GIS. Looking for a process where this can be done en masse instead of checking each individual point pair.