Graphics Programs Reference
In-Depth Information
LINETYPES TROUBLESHOOTING
If you change the linetype of a layer or an object but the object remains a continuous line, check the
Ltscale system variable. It should be set to your drawing scale factor. If this doesn't work, set the Viewres
system variable to a higher value (see Appendix D on the topic's companion website). (Viewres can also
be set by the Arc And Circle Smoothness option in the Document Settings option of the Application
Preferences dialog box.) The behavior of linetype scales depends on whether you're in Model Space or
in a drawing layout. If your efforts to control linetype scale have no effect on your linetype's visibility,
you may be in a drawing layout. See Chapter 15 for more on Model Space and layouts.
Remember that if you assign a linetype to a layer, everything you draw on that layer will be
of that linetype. This includes arcs, polylines, circles, and traces. As explained in the sidebar
“Assigning Colors, Linetypes, and Linetype Scales to Individual Objects” later in this chapter,
you can also assign different colors and linetypes to individual objects rather than relying on
their layer assignment to define color and linetype. However, you may want to avoid assigning
colors and linetypes directly to objects until you have some experience with AutoCAD and a
good grasp of your drawing's organization.
In the previous exercise, you changed the global linetype scale setting. This affects all noncon-
tinuous linetypes within the current drawing. You can also set the default linetype scale for all new
objects with the Celtscale system variable (type CELTSCALE ↵ and enter the desired scale factor).
When individual objects are assigned a linetype scale, they're still affected by the global
linetype scale set by the Ltscale system variable. For example, say you assign a linetype scale of
2 to the curtain rod in the previous example. This scale is then multiplied by the global linetype
scale of 12, for a final linetype scale of 24.
You can also set the default linetype scale for individual objects by using the Celtscale sys-
tem variable. After it's set, only newly created objects are affected. You must use the Properties
Inspector palette to change the linetype scale of individual existing objects.
LINETYPES IN LAYOUTS
A system variable called Psltscale affects how layout viewports display linetypes. When the Psltscale
system variable is set to 1, layout viewports display linetypes at the Ltscale setting, which is usu-
ally incorrect for the 1-to-1 scale of the layout. When Psltscale is set to 0, linetypes appear in layout
viewports in the same way they appear in the Model Space.
A D D I N G T H E F I N A L D E T A I L
If you're working through the tutorial, your final task is to set up an insertion point for the cur-
rent drawing to facilitate its insertion into other drawings in the future. Follow these steps:
1. Type BASE ↵.
2. At the Enter base point <0´-0˝,0´-0˝,0´-0˝>: prompt, use the Endpoint object snap
to pick the upper-left corner of the bathroom. The bathroom drawing is complete.
3. Choose File Save to save the current drawing.
 
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