Geography Reference
In-Depth Information
Illustration of displacement operation.
ENHANCEMENT
Enhancement exaggerates geometrical characteristics of lines or areas to
clarify the geographic characteristics or help in inferring geographical rela-
tionships from the cartographic presentation. As with the displacement
operation, it creates positional changes that distort the relationship between
the features and actual things and events on the ground.
Illustration of enhancement operation.
SELECTION
Selection is used to retain certain points, lines, or areas for the cartographic
representation and to remove others. This mainly aids in dealing with clutter,
although this operation is also used to help clarify relationships by removing
details. Naturally, this operation can result in significant distortions and pos-
sibilities to misinterpret geographic relationships.
Illustration of selection operation.
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