Location

Location

Location is an abstract class, see Figure 47. Location class model that groups together the different location referencing methods, which in turn provide several ways to define:

● a Point Location, with a single x, y coordinate. ● a Linear Location, which indicates a location with a length, such as the location on a stretch of road. ● an Area Location, which defines a polygon, which defines the extent of a feature, which is often used in map representation.

Each element of the place hierarchy contains both a point and an area location which serves different purposes for the different elements. This can be seen for Place (Figure 6), SubplaceElement (Figure 7), IdentifiedArea (Figure 8) and Space (Figure 9).

Figure 47 - Location class model

Linear Location is not used in this Specification but has been included for completeness. No further details of how to define a linear location area given.

Copyright Alliance for Parking Data Standards: APDS Information Model 4.0 Version Release June 7, 2022