Graphics Programs Reference
In-Depth Information
If you have a mouse with a scroll wheel, you can avoid using the Zoom command altogether.
Just place the cursor on the toilet and turn the wheel to zoom into the image. For Magic Mouse
users, use a one-finger vertical gesture on the Multi-Touch area of the mouse. Trackpad users
can hold down C and use a two-finger vertical gesture.
Modifying an Object
Now let's see how editing commands are used to construct an object. To define the back edge of
the seat, let's put a copy of the line defining the front of the toilet tank 3˝ (7 cm for metric users)
toward the center of the ellipse:
1. Click the Copy tool in the Tool Sets palette, or type CO ↵.
2. At the Select objects: prompt, pick the horizontal line that touches the top of the
ellipse. The line is highlighted. Press ↵ to complete your selection.
3. At the Specify base point or [Displacement/mOde] <Displacement>: prompt, pick
a base point near the line. Then point the cursor down and enter ↵, or 7 ↵ if you're a met-
ric user.
4. Press ↵ to exit the Copy command. Your drawing should look like Figure 3.5.
FIGURE 3.5
The line
copied down
Notice that the Copy command acts exactly like the Move command you used in Chapter
2 except that Copy doesn't alter the position of the objects you select and you must press ↵
to exit Copy.
T R I M M I N G A N O B J E C T
Now you must delete the part of the ellipse that isn't needed. You'll use the Trim command to
trim off part of the ellipse:
1. Click the Trim tool in the Tool Sets palette. You can also type TR ↵. You'll see this prompt:
Current settings: Projection=UCS Edge=None
Select cutting edges ...
Select objects or <select all>:
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