Map projections allow us to convert from sphere to planar (flat) representation. Geographic coordinate systems allow for the measurements of distances and to determine direction. Except for the Geographic Grid all coordinate systems are based on some form of map projection. Coordinates In a coordinate system, the X value given […]
state plane coordinate system
GIS Learning
Map Projections and Coordinate Systems
What are Map Projections? The shape of the earth is roughly spherical wheres as maps are two dimensional. Map projection is a set of techniques designed to depict with reasonable accuracy the spherical earth in a two-dimensional (i.e. flat) media. Map projection types are created by an imaginary source of […]
GIS Learning
State Plane Coordinate System
If you’ve ever worked with GIS data regionally within the United States you’ve probably come across the State Plane Coordinate System. What is the State Plane Coordinate System? The State Plane Coordinate System (SPCS) is not a projection; rather it is a system for specifying positions of geodetic stations using […]