Graphics Programs Reference
In-Depth Information
4.
At the Specify point on positive-Y portion of the UCS XY plane: prompt, pick
the top corner of the butterfly chair seat, as shown in the left image in Figure 20.29. The
UCS icon changes to indicate your new UCS.
5.
Now that you've defi ned a UCS, you need to save it so that you can return to it later.
Click the Manage UCS tool from the expanded Coordinates tool group of the Tool Sets
palette. You can also choose Tools
Named UCS on the menu bar or type
UC↵ to open
the UCS dialog box.
6.
With the Named tab selected, double-click the Unnamed item in the list box.
7.
Enter
FRONT
↵.
8.
Click OK to exit the UCS dialog box.
You've defi ned and saved a UCS for the front side of the chair. As you can see from the UCS
icon, this UCS is at a non-orthogonal angle to the WCS. Continue by creating UCSs for two more
sides of the butterfl y chair using the 3-Point UCS option:
1.
Defi ne a UCS for the side of the chair, as shown in the middle image in Figure 20.29. Use
the UCS dialog box to rename this UCS Side, just as you did for Front in steps 5 through 8
in the previous exercise. Remember that you renamed the unnamed UCS.
2.
Repeat these steps for a UCS for the back of the chair, named Back. Use the right image in
Figure 20.29 for reference.
3.
Open the UCS dialog box again; in the Named tab, highlight Front.
4.
Click the Option action menu and choose Set Current. Then click OK. This activates Front
as the current UCS.
5.
Click the Start, End, Direction tool from the 3-Point Arc tool fl yout on the Tool Sets pal-
ette (Figure 20.30).
FIGURE 20.30
The Start, End,
Direction tool in
the 3-Point fl yout.
3-Point Arc tool
