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4 If you are modifying an ellipsoid, enter a code and description for the
ellipsoid.
To modify a predefined ellipsoid, you must change the code before you
can change the other ellipsoid properties.
5 Under Calculation Method, select a calculation method.
6 Enter the appropriate ellipsoid dimension parameters for the calculation
method you selected.
Quick Reference
ADEDEFCRDSYS
Defines a global coordinate system
Setup menu ➤ Define Global Coordinate System
Menu
ADEDEFCRDSYSCommand Line
Global Coordinate System Manager Dialog BoxDialog Box
Modifying or Deleting a Coordinate System Category
You can modify categories by adding or removing coordinate systems, or
moving coordinate systems from one category to another. You can also delete
categories.
See also:
■
Overview of Coordinate Systems (page 143)
■ Overview of Creating New Coordinate Systems (page 90)
■ Creating a Coordinate System Category (page 96)
To edit or delete a coordinate system category
1 Click Map Setup tab ➤ Coordinate System panel ➤ Define Global
Coordinate System.
2 In the Global Coordinate System Manager dialog box, click Category
Manager.
Creating New Coordinate Systems | 101