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Chapter 14. Dimensioning > Dimension System Variables

Dimension System Variables

Using and understanding the dimension system variables is entirely optional nowadays, because AutoCAD 2000 enables you to dimension quite successfully without using any dimension variables. If you plan to do any programming in the AutoCAD 2000 environment that involves dimensioning, you need to understand dimension variables because you will have to read and write to them directly without the assistance of the user interface. Otherwise, you may prefer to skim through this section and proceed to the following section.

The Dimension Style Manager is essentially a front end for dealing with dimension system variables. The Command Reference in AutoCAD 2000 help provides a useful graphic that depicts the relationship between dimension system variables and the Dimension Style Manager. Open the AutoCAD 2000 help and select Command Reference in the Contents tab. Then, open the Dimension Style Quick Reference. All the components of the dialog box are labeled with the corresponding dimension variable. Figure 14.21 shows the first page of this reference. You should check through all the pages to get a better grasp of the functions of dimension system variables. For more detailed information about the actual values, refer to Table 14.2.


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