https://wiki.calax.com/ Tue, 21 Jul 2026 12:58:27 +0000 FeedCreator 1.8 https://wiki.calax.com/lib/exe/fetch.php?media=wiki:dokuwiki.svg https://wiki.calax.com/ https://wiki.calax.com/doku.php?id=gis:start Introduction Two-dimensional points are elements composed of two ordinates, X and Y, often corresponding to longitude and latitude. Line strings are composed of one or more pairs of points that define line segments. Polygons are composed of connected line strings that form a closed ring, and the area of the polygon is implied. For example, a point might represent a building location, a line string might represent a road or flight path, and a polygon might represent a state, city, zoning distric… anonymous@undisclosed.example.com (Anonymous) Wed, 24 Nov 2021 08:33:08 +0000