lecture02 - (e.g., Germany is north of Italy) Thematic...

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Review: Evolution of Databases
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Review: A Simplified Database Environment
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User Groups Interested in Spatial Databases and Some Queries (I)
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User Groups Interested in Spatial Databases and Some Queries (II)
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A Typical Map Some spatial terms ¾ Map ¾ Spatial partition = subdivision of space ¾ Spatial object (like point, line, region) ¾ Spatial containment hierarchy ¾ Topological relationship (here: all region objects are adjacent or disjoint to each other) ¾ Directional relationship
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Unformatted text preview: (e.g., Germany is north of Italy) Thematic attribute (e.g., state name, state population, state unemployment rate) Two dimensional space (2D, plane) Three dimensional space (3D) Map Projection Thematic attributes state_name and population are mapped to population Geometric and thematic operation Regions with the same thematic attribute values are merged after the projection ( A , 5) ( B , 5) (5)...
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This note was uploaded on 10/19/2009 for the course CIS 6930 taught by Professor Staff during the Fall '08 term at University of Florida.

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lecture02 - (e.g., Germany is north of Italy) Thematic...

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