Graphics Programs Reference
In-Depth Information
distributions (Continued)
equal Equal means that the range of each rule will be equal. So, if there are
100 buildings ranging in height from 10 feet to 100 feet (90 feet overall) and
there are 10 ranges, each range will be exactly 9 feet (90/10).
Logarithm Without getting too deep into statistical mathematics, Logarithm
means that each range will be larger than the one before it.
standard deviation With a standard deviation distribution, the range
sizes will follow a bell curve shape with the first ranges being small, the middle
ranges largest, and the last ranges small.
Jenks (natural Breaks) Again, without getting too deep into the theory,
you can think of the Jenks distribution as an “optimized” or “best” distribution
of the values.
10. Click OK.
The buildings in the model should be color-coded based on their height and
should appear as shown in Figure 7.23.
fIgure 7.23 The results of a building height analysis performed using a
feature theme
11. Uncheck any themes in the Feature Themes panel.
Since there is no change to the model, there is no “end” proposal for this exer-
cise as you have seen in other exercises.
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