Object (Object Geometry, Object Attributes)

An object is a single element of the real world represented in Spatial Information Systems.

An object is composed of:

  1. Geometry, i.e. the spatial representation. Different types of geometry can be distinguished (point, line and polygon)
  2. Attribute Values, a set of characteristic values for that Object. More about Attributes

Groups of Objects of the same class, gather into Layers.

In the following example:

An object (a single measurement point), consists of a Geometry (i.e. its location at a specific point in space) and Attribute Values (Milanówek Municipality, 909, TelWin, etc.).


  1. The “Hydrants” layer probably consists of Objects: individual hydrants.
  2. The “National Parks” layer probably consists of 23 Objects: National Parks

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