Graphics Programs Reference
In-Depth Information
Chapter 17: Drawing Curves
Create and edit polylines. Polylines are extremely versatile. You can use them in just about
any situation in which you need to draw line work that is continuous. For this reason, you'll
want to master polylines early in your AutoCAD training.
Master It Draw the part shown here.
Start here.
Close here.
1 1/2"
2 3/4"
Start Straighten here.
Enter G here.
2 1/4"
3 3/4"
1.
2.
Insert a new
vertex here.
3.
4.
Solution There are many ways to create this drawing. Use these instructions as guide-
lines, but keep in mind that this is not the only way to create the drawing:
1.
Open a new file called PART14 using the acad.dwt template. Set the Snap spacing to
0.25, and be sure Snap mode is on. Use the Pline command to draw the object shown in
step 1 of the drawing shown here. Start at the upper-left corner, and draw in the direc-
tion indicated by the arrows. Use the Close option to add the last line segment.
2.
Start the Pedit command, select the polyline, and then type E ↵ to issue the Edit Vertex
option. Press ↵ until the X mark moves to the first corner, as shown here. Enter S ↵ for
the Straighten option.
At the Enter an option prompt, press ↵ twice to move the X to the other corner shown
in step 2 of the drawing. Press G ↵ for Go to straighten the polyline between the two se-
lected corners.
3.
Press ↵ three times to move the X to the upper-right corner, and then enter I ↵ for Insert.
Pick a point as shown in step 3 of the drawing. The polyline changes to reflect the
new vertex. Enter X ↵ to exit the Edit Vertex option, and then press ↵ to exit the Pedit
command.
 
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