CHAPTER 9Geometry Processing Functions

To run the examples in this chapter, you need to import the following datasets:

imp spatial/spatial file=app_data_with_loc.dmp ignore=y full=y imp spatial/spatial file=citybldgs.dmp full=y ignore=y imp spatial/spatial file=map_large.dmp full=y ignore=y

In Chapter 8, we discussed how to perform proximity analysis using a spatial index and associated spatial operators. In this chapter, we describe geometry processing functions, which are also referred to as spatial functions (whenever there is no ambiguity), which complement this functionality. In contrast to the spatial operators, these geometry processing functions

  • do not require a spatial index,
  • provide more detailed analyses than the spatial operators ...

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