A point can also contain m and z fields as well, representing the vertical and linear referencing system coordinates. Creating Point objectsĪ point contains x and y fields along with a spatialReference field. The layout diagram further shows how Feature and spatially enabled DataFrame objects from arcgis.features module return components of the geometry module. The module provides functions that can be used to define spatial relationships to be used in queries against feature layers and imagery layers. The SpatialReference class is used to represent spatial reference and coordinate system information. There difference between these two sets of operations is explained in the section 'Two patterns of applying spatial operations'.
The sub-module contains an alternate set of spatial operations. The base class provides geometry operations such as clip(), difference(), buffer(). Users generally do not instantiate the base class, but work directly with one or more child classes such as Point, Polyline, Polygon etc. The class is a base class from which specific geometry classes inherit.
The arcgis.geometry module contains classes and utility functions to construct geometry objects such as Points, Polylines, Polygons and perform spatial operations on them. The picture below illustrates how the geometry module is organized (which showcase only the important objects, sub-modules, and properties via the OMD):
Gis = GIS( 'home') Object Model Diagram (OMD) of the geometry module
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