Data models
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Classification of the GIS data structure is based on the method
of storing digital map data within the computer and can be vector
or raster. There has been considerable debate over whether vector or raster
data structures are most appropriate for use in GIS. However, which
structure is best largely depends on what you want to do with your
GIS and the output you require. Two tables summarise the advantages
and disadvantages of raster and the advantages and disadvantages
of vector structures. |
Vector and raster 17kb
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http://www.geog.ubc.ca/courses/klink Feel like trying the questions? Go ahead. |
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Justifying raster or
vector
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Imagine that your colleague has been strongly arguing that vector
is the only way to go for the new GIS you are designing. Your output
will be mainly for scientific enquiry and needs great accuracy,
and your input will mainly be digital images requiring complex analyses.
Is your colleague correct? Explain in your e-journal, then discuss
in
the discussion forum
if you wish. |
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