Vertical exaggeration
A Triangulated Irregular Network (
Vertical exaggeration has two main
uses. First, it can be used to emphasize small changes
in elevation on a surface that is relatively flat, or that looks flat because
of its large extent. Second, it can bring z-values
into proportion with x,y values when these units
measure different things. This happens when the
z-values represent an attribute other than elevation (for example, in 3D
surfaces of population density or household income) or when the x,y units are in decimal degrees
and the z units are in meters or feet.
Vertical exaggeration is a purely
visual effect and does not influence analysis.
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A composite view of a mountain. In the
foreground (blue), the mountain has no vertical exaggeration. In the middle ground (green) the vertical exaggeration
is 2. In the background (red), the vertical
exaggeration is 5. |