3
votes
2answers
127 views

geospatial libraries like postgis

I'm pretty comfortable with postgis, but I realized that for part of my application, having a database is pretty heavy. I'd like to be able to take a stream of Point objects and check against an in ...
0
votes
0answers
31 views

GEOS: How to intersect without noding?

As discussed in this question intersecting two GEOS line geometries gives a result which has also been noded. This is very nice if noding is what you want, but is it possible (through the C api) to ...
4
votes
2answers
460 views

is there a way to tell if two linestrings “really” intersect in JTS or GEOS

In JTS (or GEOS) you can't tell if two linestrings really cross each other. The result is exactly the same whether the lines simply have a point in common but don't cross or if they really cross. Is ...