Tests if two geometries are equal (have equivalent spatial reference systems, same geometry type, and same points).
public static bool Equals(Geometry geometry1, Geometry geometry2)
The first geometry.
The second geometry.
This method is one of several that determines the spatial relationship between two geometries. If the spatial relationship exists between the two input geometries then true is returned. If the spatial relationship does not exist between the two input geometries then false is returned. The spatial relationship test used by this method is based on the Dimensionally Extended 9 Intersection Model (DE-9IM) developed by Clementini, et al., and is discussed further in the web pages: DE-9IM and Understanding spatial relations.
The following is a visual example of when this method returns true:
Various implementations of IsEqual(Geometry) method (i.e. IsEqual(Geometry), IsEqual(Geometry), IsEqual(Segment), IsEqual(Geometry), IsEqual(Geometry), IsEqual(Geometry), IsEqual(Segment)) provide the strictest comparison of two geometries to ensure that they are identical. For a slightly more relaxed comparison (one that does not take coordinate order into account), use Equals(Geometry, Geometry). The following table provides a comparison of these options:
|Order of Coordinates||--|
Supports true curves.
Platforms and versions
|.NET Standard 2.0||100.3 - 100.14|
|.NET 6.0||100.13 - 100.14|
|.NET 6.0 Windows||100.13 - 100.14|
|.NET Framework||100.0 - 100.14|
|.NET 5||100.10 - 100.12|
|.NET Core 3.1||100.7 - 100.12|
|Xamarin.Android||100.0 - 100.14|
|Xamarin.iOS||100.0 - 100.14|
|UWP||100.0 - 100.14|