Geographic Coordinate System Dialog

Note: The GEOCOORDINATE ASSIGN NOQUERY key-in is typically used if no geographic coordinate system was previously assigned to a file. It assigns the specified geographic coordinate system but does not query the user, reproject, or change storage units. It can be used to assign a geographic coordinate system if the storage units are correct. It takes the value stored in your user preference file (*.UPF).

Note: The GEOCOORDINATE ASSIGN REPROJECT key-in reprojects the data to the new GCS. It assigns the specified geographic coordinate system but does not query the user because it is not possible to change units. This key-in reprojects a file from one geographic coordinate system to another so the file must already have a defined geographic coordinate system.

Note: The GEOCOORDINATE ASSIGN MATCHUNITS key-in corrects the GCS but does not change the data. It assigns the specified geographic coordinate system and matches the storage units to those of the geographic coordinate system but does not query the user or reproject. The key-in assigns the geographic coordinate system to a file with units that should be changed to match the geographic coordinate system. It is used when units in a file are incorrect. A common case occurs in State Plane mapping. Many users selected the feet units from OpenRail Designer . However, these feet are international feet and the state plane coordinate systems are defined in US Survey feet, a small but significant change over long distances. This key-in changes the design file units to be correct for the specified coordinate system.