Graphics Programs Reference
In-Depth Information
Adjusting the Cabin Walls
The cabin walls were drawn with a constant height. In this section, you'll cre-
ate the peaks at the front and back of the cabin to accommodate the roof. To
accomplish this, you will add segmentation to the top of the walls using the
Slice tool and then move the new edges in the z-axis. Here's how:
1.
Freeze the A-DECK-3DOB, A-DECK-STRS-3DOB, A-ROOF-3DOB,
and A-ROOF-DECK-3DOB layers.
2.
Click the Slice button on the Solid Editing panel of the Home tab to
start the
SLICE
command.
3.
At the
Select objects to slice:
prompt, pick the exterior walls.
4.
The Slice tool uses a plane with an infinite depth to cut the selected
objects, so you need two points to define the plane.
At the
Specify start point of slicing plane or:
prompt, use
the Midpoint osnap to pick the midpoint of the top of the front wall,
as shown in the top image of Figure 16.79.
5.
At the
Specify second point on plane:
prompt, pick the midpoint of
the top of the back wall, as shown in the bottom image of Figure 16.79.
6.
The Slice tool can display both sides of the sliced object or it can
delete one of the sides. In this case, you want to keep both sides. At
the
Specify a point on desired side or [keep Both sides]:
prompt, press
↵
or enter
B
↵
to retain both sides.
The new edges appear on the walls (see Figure 16.80) and there are
now two sets of exterior walls; one on the south side of the cabin and
one on the north. Notice that the slice is centered on the wall, but
not centered over the doorway.
Just as you were able to edit the size of a box object by dragging its
grips, you can do the same with nonprimitive objects. The grips are
available at the edges, faces, and vertices—the points where two or
more edges end. You access the subobjects by holding down the Ctrl
key and clicking on the grip location. The grips won't appear until
you click.
7.
Zoom into the newly sliced area on the front wall. Hold the Ctrl key
down and click the middle of the top edge. The small rectangular red
edge grip appears as shown in Figure 16.81.
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