Using the PostGIS shp2pgsql -s 4326 ... I generated the sql file and created my spatially enabled table. When executing my query: select box2d(ST_extent(the_geom)) from feature_data; I'm returned ...
When I crop OpenStreetMap data using Osmosis with the --bounding-box option, it seems to only give me nodes and ways that are fully contained within the bounding box. There are several long highways ...
I have a PostGIS db, and I want to find the points that lie within some region (a bounding box). I have two sets of coordinates, from which I can get all four rectangle points that form the box (if ...
I am working on a google map application, to display the items that are listed in the selected rectangular area. Below image give you some understanding. Based on the co-ordinates ...
I have a bunch of GPX files and I want to find out which files contain tracks located in certain geographic extent, e.g. files containing tracks in Pennsylvania. Also, the inverse is also useful too, ...
I was wondering if anyone could help me out with a website which I can use to get geometries for a area. What I'm looking for is something like google maps where I can drag a cursor over a area of the ...
How can I calculate the length and with of polygons using open source tools? By "polygon length" I mean the length of the longest line within the polygon (update: to be correct, I just need the ...