Earthsys 144: Fundamentals of GIScience
Spatial & Cartographic Data Models
where is your data? gis.stanford.edu
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Cartographic Model
cartographic models
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cartographic models
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map layers
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titles
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metadata
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zones
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values
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labels
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locations
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coordinates
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locations across layers
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spatial data models
layers
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vector & raster
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vector data model
entities & (spatial) objects
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vector data structure
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vector representations
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representing complex entities
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representing complex entities
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How long is the coast of Britain?
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The problem of generalization
topology
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topology
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topological rules
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topology
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raster data model
raster data models
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cells
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cells
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cells
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cells
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attribute data
attribute data
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nominal data
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ordinal attributes
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interval/ratio attributes
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comparisons & conversions
vector vs raster
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conversion
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null
"Raster is faster, but vector is correcter"
-Ron Briggs UTDallas
other spatial data models
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3-dimensional models
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3-dimensional models
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object-oriented models
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multiple models
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Spatial & Cartographic Data Models
By Stace Maples
Spatial & Cartographic Data Models
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