Graphics Programs Reference
In-Depth Information
FiG 4.6
Intersecting the slope with the outline.
FiG 4.7
Perimeter of the surface, raised of the plan.
Tip
The Sandbox tools only work with contours: They will not work with a
cloud of isolated elevation points. You can get around this limitation
by using vertical lines whose ends correspond to the isolated points.
The Sandbox will then take these vertical lines into account when
generating the surface, but will ignore their lower extremities.
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