Graphics Programs Reference
In-Depth Information
Contours now appear
in the area of the pond,
and the surface model
reflects the shape of
the pond.
3D model, the roads are accurately represented; and if you zoom in,
you can see the curb and the crown of the road clearly. The interior
lot area is empty because this area has a hide boundary applied to it
in the Road FG surface.
▶
9.
Repeat steps 7 and 8, this time selecting the Pond surface.
▶
10.
Repeat steps 7 and 8, this time selecting the Lots - Interior surface.
11.
Click one of the red or blue contours, and select Surface Properties
on the ribbon.
Surface information
is now shown for the
interior lot grading,
but the pond area has
been overwritten with
inaccurate information.
You'll fix this in the next
few steps by changing
the order in which the
surfaces are pasted.
12.
On the Surface Properties dialog, on the Definition tab, click
Add Surface Lots - Interior and then click the up-arrow icon (see
Figure 18.3).
This moves the Lots - Interior surface above the Pond surface in
the paste order.
13.
Click OK, and then click Rebuild The Surface.
The lot grading contours and the correct pond contours are now
shown. This is an example of the importance of managing the order
of pasted surfaces to achieve the desired result.
FiGuRE 18.3
Clicking the up arrow changes the order
of operations so that the Lots - Interior surface is pasted before the
Pond surface.
14.
Repeat steps 7 and 8, this time selecting the Lot Daylight surface.
Contours are now shown in the area between lots 73 and 76,
and all design grading for the project is represented as one surface
(see Figure 18.4).
15.
Save and close the drawing.
You can view the results of successfully completing this exercise by opening
Combining Surfaces - Complete.dwg
.
