2011

3 In the Coordinate System Category Manager, select a category.
4 To modify the category, click Edit.
To delete the category, click Remove.
5 If you are modifying the category, do one or more of the following:
■ To remove coordinate systems from the category, click the coordinate
system names in the list under the Category Name box. Click Remove.
■ To add coordinate systems to the category, click the coordinate system
names in the list under the Available Categories list. Click Add.
■ To add coordinate systems from different categories, select the category
name in the Available Categories list.
Quick Reference
ADEDEFCRDSYS
Defines a global coordinate system
Setup menu ➤ Define Global Coordinate System
Menu
ADEDEFCRDSYSCommand Line
Global Coordinate System Manager Dialog BoxDialog Box
Grid Data Files and Datum Shifts
AutoCAD Map 3D uses grid data files to specify
datum (page 2059) shift
information and Grid Data Catalog files to determine the order for those files
when converting from one datum to another.
See also:
■
Creating New Coordinate Systems (page 89)
■ Overview of Coordinate Systems (page 143)
To work with grid data files and datum shifts
■
To set up a new grid data file (page 105)
■
To set up a new grid data file for the United States (page 108)
102 | Chapter 2 Setting Up