JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Coordinate System Operations Editing Coordinate Systems Upgrading a Custom Coordinate System from a Previous Version of OpenCities Map or MicroStation GeoGraphics Applying a Geographic Coordinate System (GCS) to Multiple Design Files Enabling Coordinate System Readout Entering Longitude and Latitude Coordinates Reprojecting Design Data Grid to Ground Coordinate System Transformations MGE Based Coordinate Systems Import Esri PRJ file as GCS Parent topic: OpenCities Map Help