Select Coordinate System dialog box

Use this dialog box to change the coordinate system of data you add to your map. You must specify the original coordinate system for the data. AutoCAD Map 3D automatically converts the data from that coordinate system to the one specified for your map.

To change the coordinate system assigned to the data you are adding to a map

In Display Manager, click DataConnect To Data.


Select the set of coordinate systems in which the specific coordinate system is stored.


Search within the category for the coordinate system, using either its code (for example, CA-I) or its description (for example, NAD27 California State Planes, Zone I).

Coordinate Systems In Category

Scroll through the list or use Search to find and select a coordinate system in the current category.


Display the datum, ellipsoid, projection, false origin, latitude and longitude settings for the selected coordinate system.