Graphics Programs Reference
In-Depth Information
In step 3, you see an X at the location of a dimension definition point. If the definition
point is already associated with an object, the X appears with a box around it. The box is
a reminder that the definition point is already associated with an object and that you'll be
changing its association. In this situation, you can press ↵ to switch to the dimension's other
definition point.
Also in step 3, you have the option to select an object. This option enables you to associate the
dimension with an entire object instead of with just one endpoint. If you type
S
↵ at that prompt
in step 3, you can then select the object you want to associate with the dimension. The dimen-
sion changes so that its definition points coincide with the endpoints of the object. The dimen-
sion remains in its original orientation. For example, a vertical dimension remains vertical even
if you associate the dimension with a horizontal line. In this situation, the dimension dutifully
dimensions the endpoints of the line but shows a distance of zero.
REMOVING DIMENSION ASSOCIATIONS
You can remove a dimension's association with an object by using the Dimdisassociate com-
mand. Type
DIMDISASSOCIATE
↵ at the Command prompt, select the dimension(s), and then
press ↵.
Adding a String of Dimensions with a Single Operation
AutoCAD provides a method for creating a string of dimensions by using a single operation.
The Qdim command lets you select a set of objects instead of having to select points. The follow-
ing exercise demonstrates how the Qdim command works:
1.
If you haven't done so already, zoom out so you have an overall view of the Unit floor plan.
2.
Click Quick Dimension on the Dimensions tool group of the Tool Sets palette.
3.
At the Select geometry to dimension: prompt, place a selection window around the
entire left-side wall of the unit.
4.
Press ↵ to finish your selection. The following prompt appears:
Specify dimension line position, or
[Continuous/Staggered/Baseline/Ordinate/Radius/Diameter/
datumPoint/Edit/seTtings] <Continuous>:
