Developing Drawing Strategies: Part 2 - AutoCAD 2011 and AutoCAD LT 2011: No Experience Required - page 211

time establishing how the four burners truly interact with one another.
Consequently, to ensure that the constraints are correctly applied, the best
approach in this case will be to manually define the necessary geometric con-
straints. To do this, you'll use many of the individual constraint icons found
on the Parametric tab ➢ Geometric panel.
1. Make sure 05A-FPLAY4.dwg is open.
2. Confirm that Infer Constraints, Object Snap, Object Snap Tracking,
and Dynamic Input are still enabled on the status bar.
3. Click the Horizontal constraint tool from the Parametric tab ➢
Geometric panel.
4. From the Select and object or [2Points] prompt, press the
down-arrow to select 2Points, as shown in Figure 5.52.
FiGuRE 5.52 Selecting the 2Point option using Dynamic Input
5. Hover over the top left burner, and select it when a small red circle with
an X appears in the center of the circle, as shown in Figure 5.53 left.
6. From the Select second point: prompt, use the same method
to select the center point of the top-right burner, as shown in
Figure 5.53 right.
The two right burners (as if you were working at the stove facing
the rear deck) are now constrained horizontally; this means that
although the two burners may be located anywhere along the y-axis,
they will always be aligned along the x-axis. You can try this out by
using the MOVE command to move either one of the burners. Notice
how the second burner also moves even though it was not selected.
7. Use the Horizontal constraint once again, repeating steps 5 and 6 to
constrain the two burners on the left side of the stove.
All of the burners are now constrained horizontally; however, there
is no relationship between the left and right burners. To fix this, you
will continue constraining the burners, this time applying Vertical
constraints between the right and left burners.