Geography Reference
In-Depth Information
ceives of both simultaneously, although the process of creating GI often is
separate. In the end, a cartographic representation should maintain the
integrity of the GI. Otherwise substantial errors and distortions can occur.
Review Questions
1. What is the ideal number of classes to show on a map?
2. What does the larger size of a symbol generally imply?
3. When is cartographic animation generally useful?
4. Why is it important to know the type of output equipment when con-
sidering cartographic representation issues?
5. What makes cartographic symbols iconic?
6. What are five suggested map elements?
7. What should symbolization show?
8. When is an equal interval classification useful?
9. How is a histogram useful?
10. Why is the Jenk's classification widely used?
Answers
1. What is the ideal number of classes to show on a map?
According to cartographic research, between three and seven classes is
ideal.
2. What does the larger size of a symbol generally imply?
Size should be used only to show ordinal distinctions.
3. When is cartographic animation generally useful?
Cartographic animation is generally helpful for showing events when only
discrete GI is available.
4. Why is it important to know the type of output equipment when con-
sidering cartographic representation issues?
Output equipment can provide specific and constrain choices with signifi-
cant consequences for cartographic presentation.
5. What makes cartographic symbols iconic?
The
use
of
commonplace
symbols
to
achieve
strong,
heterogeneous
semiotic references makes cartographic symbols iconic.
6. What are five suggested map elements?
The five most commonly suggested map elements are scale indicators, title,
author, date, and north arrow. Explanation and contact information can
additionally be considered.
7. What should symbolization show?
Symbolization should show enough reference to relevant and meaningful
things and events without unnecessary exaggeration and conflict to other
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