Spatial Databases: With Application to GIS
Výsledky 1-5 z 71
A map contains geographic objects such as land parcels, rivers, and roads that are related to the same geographic area. Any geographic object has the ...
A similar operation, denoted point query, is the query that retrieves all objects whose geometry contains a given point. • Clipping Clipping extracts the ...
... R” that contains the relevant objects. This region is bounded, and for the sake of convenience we assume that it is a sufficiently large rectangle whose ...
... pixels that contains it. A point is described as a single pixel. Its location is described as the pixel address; that is, a pair of integer coordinates.
... interpolation of the three vertices of the triangle that contains P (see Figure 2.9). Data structures for TINs require an intensive use of pointers.
Co říkají ostatní - Napsat recenzi
CHAPTER 7 QUERY PROCESSING
CHAPTER 8 COMMERCIAL SYSTEMS
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