Method Create

Create(int)

Returns an instance of the SpatialReference class based on the given well-known ID.

Declaration

public static SpatialReference Create(int wkid)

Parameters

Type	Name	Description
int	wkid	The well-known ID of the horizontal coordinate system. Must be a positive value.

Returns

Type	Description
SpatialReference	A SpatialReference object.

Remarks

The returned SpatialReference has only horizontal coordinate system and does not have vertical coordinate system associated with it.

Exceptions

Type	Condition
ArgumentException	The provided WKID is not a supported well-known ID.

Applies to

Platforms and versions

Target	Versions
.NET Standard 2.0	100.3 - 200.8
.NET	100.13 - 300.0
.NET Windows	100.13 - 300.0
.NET Android	200.0 - 300.0
.NET iOS	200.0 - 300.0
.NET Framework	100.0 - 200.8
Xamarin.Android	100.0 - 100.15
Xamarin.iOS	100.0 - 100.15
UWP	100.0 - 200.8

Relevant samples

Densify and generalize: A multipart geometry can be densified by adding interpolated points at regular intervals. Generalizing multipart geometry simplifies it while preserving its general shape. Densifying a multipart geometry adds more vertices at regular intervals.

Identify layers: Identify features in all layers in a map. MapView supports identifying features across multiple layers. Because some layer types have sublayers, the sample recursively counts results for sublayers within each layer.

Create(int, int)

Returns an instance of the SpatialReference class based on well-known IDs for the horizontal and vertical coordinate systems.

Declaration

public static SpatialReference Create(int wkid, int verticalWkid)

Parameters

Type	Name	Description
int	wkid	The well-known ID of the horizontal coordinate system. Must be a supported well-known ID.
int	verticalWkid	The well-known ID of the vertical coordinate system. Must be a supported well-known ID.

Returns

Type	Description
SpatialReference	A SpatialReference object.

Remarks

When the vertical WKID is less than or equal to 0, this is equivalent to calling Create(int), and the spatial reference will not have a vertical coordinate system associated with it. If verticalWkid is greater than zero but is not a supported well-known ID, an exception will be thrown.

Exceptions

Type	Condition
ArgumentException	The provided WKID or verticalWKID is not a supported well-known ID.

Applies to

Platforms and versions

Target	Versions
.NET Standard 2.0	100.3 - 200.8
.NET	100.13 - 300.0
.NET Windows	100.13 - 300.0
.NET Android	200.0 - 300.0
.NET iOS	200.0 - 300.0
.NET Framework	100.0 - 200.8
Xamarin.Android	100.0 - 100.15
Xamarin.iOS	100.0 - 100.15
UWP	100.0 - 200.8

Create(string)

Returns an instance of the SpatialReference class based on well-known text (WKT).

Declaration

public static SpatialReference Create(string wktext)

Parameters

Type	Name	Description
string	wktext	A well-known text (WKT) string that defines a horizontal and optionally vertical coordinate system. Must be a supported well-known ID.

Returns

Type	Description
SpatialReference	A SpatialReference object.

Exceptions

Type	Condition
ArgumentException	The provided wktext does not contain a supported coordinate system well-known text string.

Applies to

Platforms and versions

Target	Versions
.NET Standard 2.0	100.3 - 200.8
.NET	100.13 - 300.0
.NET Windows	100.13 - 300.0
.NET Android	200.0 - 300.0
.NET iOS	200.0 - 300.0
.NET Framework	100.0 - 200.8
Xamarin.Android	100.0 - 100.15
Xamarin.iOS	100.0 - 100.15
UWP	100.0 - 200.8