Describes a point of view for a 2D or 3D view. In a 2D view, the viewpoint is determined using a center point and scale value. In a 3D view, it is determined using a camera position. The Viewpoint can be bookmarked for later use, or used for navigation purposes.
Constructors
new Viewpoint(properties)
properties Object See the properties for a list of all the properties that may be passed into the constructor. |
Property Overview
| Name | Type | Summary | |
|---|---|---|---|
| Camera | The viewpoint camera (3D only). more details | more details | |
| String | The name of the class. more details | more details | |
| Number | The rotation of due north in relation to the top of the view in degrees. more details | more details | |
| Number | The scale of the viewpoint. more details | more details | |
| Geometry | The target geometry framed by the viewpoint. more details | more details | |
Property Details
The viewpoint camera (3D only).
Z-values defined in a geographic or metric coordinate system are expressed in meters. However, in local scenes that use a projected coordinate system, vertical units are assumed to be the same as the horizontal units specified by the service.
declaredClassStringreadonly
The name of the class. The declared class name is formatted as
esri.folder.className.rotationNumber
The rotation of due north in relation to the top of the view in degrees.
- See also:
- MapView.rotation
Default Value: 0Examples:// due north is rotated 90 degrees, pointing to the right side of the view viewpoint.rotation = 90;// due north is rotated 180 degrees, pointing to the bottom of the view viewpoint.rotation = 180;// due north is rotated 270 degrees, pointing to the left side of the view viewpoint.rotation = 270;// due north is rotated 0 degrees, pointing to the top of the view (the default) viewpoint.rotation = 0; // 360 or multiple of 360 (e.g. 720) works here as well.scaleNumber
The scale of the viewpoint.
targetGeometryGeometry
The target geometry framed by the viewpoint.
Z-values defined in a geographic or metric coordinate system are expressed in meters. However, in local scenes that use a projected coordinate system, vertical units are assumed to be the same as the horizontal units specified by the service.
Method Overview
| Name | Return Type | Summary | |
|---|---|---|---|
| Viewpoint | Create a deep clone of the viewpoint. more details | more details | |
| * | Creates a new instance of this class and initializes it with values from a JSON object generated from a product in the ArcGIS platform. more details | more details | |
| Object | Converts an instance of this class to its ArcGIS Portal JSON representation. more details | more details | |
Method Details
clone(){Viewpoint}
Create a deep clone of the viewpoint.
Returns:Type Description Viewpoint A deep clone of the Viewpoint object that called this method. fromJSON(json){*}static
Creates a new instance of this class and initializes it with values from a JSON object generated from a product in the ArcGIS platform. The object passed into the input
jsonparameter often comes from a response to a query operation in the REST API or a toJSON() method from another ArcGIS product. See the Using fromJSON() topic in the Guide for details and examples of when and how to use this function.Parameter:json ObjectA JSON representation of the instance in the ArcGIS format. See the ArcGIS REST API documentation for examples of the structure of various input JSON objects.
Returns:Type Description * Returns a new instance of this class. toJSON(){Object}
Converts an instance of this class to its ArcGIS Portal JSON representation. See the Using fromJSON() topic in the Guide for more information.
Returns:Type Description Object The ArcGIS Portal JSON representation of an instance of this class.