Rendering and Materials - AutoCAD 2011 and AutoCAD LT 2011: No Experience Required - page 915

4. Select the Front or Left face of the ViewCube to view your model
from the side and verify that each of the contours are lower than the
previous (see Figure 17.4).
FiGuRE 17.4 The contour lines as viewed from the side
5. Switch back to an isometric view, freezing all layers except
C-TOPO-3DOB.
6. Click the Loft button in the Modeling panel on the Home tab. It may
be hidden under the Extrude button.
7. At the Select cross sections in lofting order or: prompt,
enter MO ↵ to set the creation mode. Choose Surface by entering SU ↵ .
The creation mode is changed to Surface, and the command line
once again reads Select cross sections in lofting order or: .
8. It's important to pick the cross sections for a lofted surface in order;
otherwise, the surface may not generate as expected. Press ↵ after
you've selected each of the cross sections to advance through the
LOFT command.
Select the outermost polyline and then each subsequent spline or
polyline in order from outside to inside.
9. You can adjust how lofted surfaces are created by entering S ↵ with
the LOFT command still running. Verify that the Smooth Fit option is
selected in the Loft Settings dialog box that opens, shown in Figure 17.5.
Smooth Fit creates a soft transition from one contour to the next.
10. At the Enter an option: prompt, enter C ↵ for the Cross Sections
Only option.
11. Click OK, and then change to the Conceptual visual style. Your cabin
land parcel should look similar to Figure 17.6.
12. Thaw all layers with a 3DOB suffix.
13. Save your drawing as 17A-3DMOD1.dwg .