in my app I am parsing an XML from the web which gives me such coordinate info:
I am able to use my app to get a pair of float values like 14.871381 and 50.065968. I do not want any complicate processing (using simple C++ program running in CLI) - if possible the best would be if some free library or CLI utility could say whether this point (according to the coordinates) lies in a polygon (in my case a particular region - just one) - maybe like this:
Have a map with defined polygon (region/county) A Query: 14.871381 ; 50.065968 Reply: A or: Query: 14.871381 ; 50.065968 is in region A? Reply: True (or False or 1/0 or something simple)
Most important is to have really efficient and low demanding solution, no GUI needed (program runs in CLI) and it runs on weak HW (single-core Atom CPU) running Kubuntu linux and about 1-2 queries per second.
PS: my brother is able to help me with GIS related information but not with the programming...