National Center for Geographic Information and Analysis
Unit 25: Using COGO for Data Input
- Author(s): Unit 25, CCTP
- Miller, Ross
- Editor(s): Palladino, Steve
- et al.
This unit describes Coordinate Geometry (COGO), a method of inputting surveying or engineering data into GIS, CAD or mapping software. It includes materials for a lab exercise using Arc/Info COGO in which students coordinate a subdivision plan, making use of traversing, sideshots and curve layout operations. Also included are lecture notes outlining uses of COGO and basic operations, data conversion and attributes in Esri’s Arc software.