Drawing Curves - Mastering AutoCAD for Mac - page 454

If you want to break a polyline into simple lines and arcs, you can use the Explode tool on the
Tool Sets palette, just as you would with blocks. After a polyline is exploded, it becomes a set of
individual line segments or arcs.
To turn off the fi lling of solid polylines, enter FILLMODE ↵ 0 ↵. After changing the value of
Fillmode, enter RE ↵ to regenerate the display of the drawing.
FILLETING A POLYLINE
You can use the Fillet tool on the Tool Sets palette to fi llet all the vertices of a polyline composed of
straight-line segments. Click the Fillet tool or enter F ↵, set your fi llet radius by typing R ↵ and enter ing
a radius value, type P ↵ to select the Polyline option, and then pick the polyline you want to fi llet.
Editing Polylines
You can edit polylines with many of the standard editing commands. To change the properties
of a polyline, click the polyline to display its properties in the Properties Inspector palette. You
can use the Stretch tool on the Tool Sets palette to move vertices of a polyline. The Trim, Extend,
and Break tools on the Tool Sets palette also work with polylines.
In addition, many editing capabilities are offered only for polylines. For instance, later in this
section you'll see how to smooth out a polyline by using the Fit option in the Pedit command.
In this exercise, you'll use the Offset tool on the Tool Sets palette to add the inside portion of
the joint:
1. Click the Offset tool in the Tool Sets palette. You can also choose Modify  Offset from
the menu bar or type O ↵.
2. At the Specify offset distance or [Through/Erase/Layer] <Through>: prompt,
enter 1 ↵.
3. At the Select object to offset or [Exit/Undo]<Exit>: prompt, pick the U-shaped
polyline you just drew.
4. At the Specify point on side to offset or [Exit/Multiple/Undo] <Exit>:
prompt, pick a point on the inside of the U shape. You'll see a concentric copy of the
polyline appear (Figure 17.4).
5. Press ↵ to exit the Offset command.
FIGURE 17.4
The offset polyline