Graphics Programs Reference
In-Depth Information
the main solid object. Faces and edges of 3D solids are also considered subobjects. When you
use the Union, Subtract, and Intersect tools later on in this topic, objects merge into a single
solid—or at least that is how it seems at first. You can gain access to and modify the shape of
the subobjects from which the shape is constructed by using B while clicking the solid. Try
the following:
1.
Place the cursor on the components of the solid you've made so far. They are highlighted
as if they were one object. If you were to click it (don't do it yet), the entire object would
be selected.
2.
Move the cursor over the circular indentation and then press B. As you do this, the
indentation is highlighted (see the top image in Figure 19.19).
3.
While still holding down B, click the indentation. The grips for the indentation appear, as
shown in the bottom image in Figure 19.19. As you may guess, you can use these grips to
change the shape and location of a feature of the selected solid.
FIGURE 19.19
You can select
subobjects of a 3D
solid when you
hold down B.
Hold down the
B
key
and hover over the
circular indentation.
Click the mouse when
the indentation is highlighted.
Click the center square grip.
The indentation will move
with the mouse.
4.
Click the center square grip of the indentation, and move your cursor around. If you find
it a bit uncontrollable, turn off Polar Tracking mode. As you move the cursor, the indenta-
tion moves with it.
5.
Place the indentation in the location shown in Figure 19.20 and click. You've just moved
the indentation from the center to the edge of the cylinder.
