Class GeographicTransformationStep
Represents a step in the process of transforming between datums.
Implements
Namespace: Esri.ArcGISRuntime.Geometry
Assembly: Esri.ArcGISRuntime.dll
Syntax
public sealed class GeographicTransformationStep : IEquatable<GeographicTransformationStep>Remarks
Each geographic transformation step can be constructed from a well-known ID (WKID) that represents a geographic transformation. Because the Projection Engine supports thousands of transformations, WKIDs are not presented in the SDK as enumerations. Instead, they are documented in the guide and online.
The list of supported WKIDs includes a transformation from every supported datum to WGS 1984. Additionally, there is more limited list of transformations directly between two non-WGS84 datums, such as 4461, which is NAD_1983_HARN_To_NAD_1983_NSRS2007_1.
Transformations with more than one step typically go via WGS84, with one forward and one inverse geographic transformation chained together to get the required geographic coordinates.
A geographic transformation step object is immutable.
Constructors
| Name | Description |
|---|---|
| GeographicTransformationStep(Int32) | Initializes a new instance of the GeographicTransformationStep class from a well-known ID. |
| GeographicTransformationStep(String) | Initializes a new instance of the GeographicTransformationStep class from a well-known text string. |
Properties
| Name | Description |
|---|---|
| IsInverse | Gets a value indicating whether this geographic transformation step is an inverted transformation. |
| IsMissingProjectionEngineFiles | Gets a value indicating whether any files needed by the Projection Engine for this geographic transformation step are missing from the local file system. |
| ProjectionEngineFilenames | Gets a read-only list of Projection Engine files required to support this geographic transformation step. |
| Wkid | Gets the well-known ID or 0 if the transformation in this step does not have a well-known ID. |
| WkText | Gets the well-known text of the geographic transformation step. |
Methods
| Name | Description |
|---|---|
| Equals(GeographicTransformationStep) | Returns |
| Equals(Object) | Returns a value indicating if the two objects are equal. |
| GetHashCode() | Serves as the hash function for the class. |
| GetInverse() | Returns the inverse of the geographic transformation step. |
See Also
Applies to
| Target | Versions |
|---|---|
| .NET Standard 2.0 | 100.3 - 200.0 |
| .NET 6.0 | 100.13 - 200.0 |
| .NET 6.0 Windows | 100.13 - 200.0 |
| .NET 6.0 Android | 200 |
| .NET 6.0 iOS | 200 |
| .NET Framework | 100.2.1 - 200.0 |
| .NET 5 | 100.10 - 100.12 |
| .NET Core 3.1 | 100.7 - 100.12 |
| Android | 100.2.1 - 100.15 |
| iOS | 100.2.1 - 100.15 |
| UWP | 100.2.1 - 200.0 |