Graphics Programs Reference
In-Depth Information
4. Use a crossing selection window to select all the components of the
front deck, but do not select the cabin wall, front door, or threshold.
If you inadvertently select an unwanted object, hold down the Shift
key and pick the object again to deselect it. The dashed selected set
should look like Figure 5.30.
FiGuRE 5.30 The selected front deck and steps
5. At the Specify first point of mirror line: prompt, activate the
Midpoint osnap and click near the midpoint of the top, outside wall line.
As discussed earlier, as long as the Midpoint snap marker displays
at the correct midpoint, it is not necessary to pick the exact midpoint
of the line.
6. Move the cursor downward. With Polar Tracking active, the cursor is
restricted to the 270° angle, causing the deck to be mirrored perfectly
to the rear of the cabin, as shown in Figure 5.31.
7. Click to define the mirror line and press to retain the source
objects. The front deck is mirrored to the back of the cabin.
The STRETCH command is used to lengthen or shorten objects in the drawing
area. The major restriction when using it is that the objects must be selected with
a crossing window or crossing polygon, so be sure to define your selection window
from right to left or enter CR at the Select objects: prompt.
When part of an object resides inside the crossing window borders, the por-
tion inside the window is moved, the portion crossing the border is stretched
 
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