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Unformatted text preview: omplex) point object consists of a finite number of single points. This enables us to represent the intersections of two lines as a single point object. Data type line A (complex) line object consists of a finite number of disjoint continuous lines. This enables us to represent several disjoint rivers as a single line object. Data type region A (complex) region object consists of a finite number of disjoint or 0‐meet faces (sub‐regions) possibly with one or more disjoint or 0‐meet holes. Spatial Data Types – Type System
Multiple components and holes in regions are needed since this guarantees the closure properties of the spatial data types this is required by spatial applications (e.g., Italy with mainland, offshore islands, and the Vatican) Proposal of the Open Geospatial Consortium (OGC) for a spatial type system...
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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.
- Fall '08