Coordinate Systems

Coordinate Systems When specifying positions you can use Cartesian or Polar Coordinates. Cartesian coordinates are simply a X value, a comma, and a Y value, for example: 100,100. Polar coordinates are a Distance followed by a < symbol and an angle, for example: 10<25. Angles are measured in degrees, with 0 = East and 90 = North. Any of these numbers can have decimal values. (AutoCAD is a three dimensional CAD system, so you can enter XYZ values instead of the XY values shown here) The positions specified above are "absolute coordinates", because they specify a particular position. AutoCAD can also use "relative coordinates" to specify a position relative to the current position, for example: @5.6,-3.4 and @16.32<62. (Consider relative coordinates simply as distances)