So here is the problem I am working on. I have an OpenStreetMap roadmap which I overlaid with a 2-D cartesian grid. So for a given grid square, I want to find out if a road segment continues from the ...
I have a decently detailed shapefile with polygon/multipolygon features (the file is about 500mb). It's actually a shapefile of the entire world, with the features representing coastlines. I need to ...