InitialViewProperties | API Reference | ArcGIS Maps SDK for JavaScript 4.31

Represents the initial viewing state of the WebMap when displayed in a MapView.

Constructors

InitialViewProperties Constructor new InitialViewProperties(properties)

Parameter

properties Object

optional

See the properties for a list of all the properties that may be passed into the constructor.

Property Overview

Any properties can be set, retrieved or listened to. See the Watch for changes topic.

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Type	Summary	Class
ColorBackground	The background color of the WebMap.	InitialViewProperties
String	The name of the class.	Accessor
SpatialReference	The spatial reference of the WebMap.	InitialViewProperties
TimeExtent	The initial time extent of the WebMap.	InitialViewProperties
String	The initial time zone of the WebMap.	InitialViewProperties
Viewpoint	The initial viewpoint of the WebMap.	InitialViewProperties

Property Details

background Property background ColorBackgroundautocast

The background color of the WebMap.

Default Value:null

declaredClass Inherited Property declaredClass Stringreadonly Inherited from Accessor Since: ArcGIS Maps SDK for JavaScript 4.7 Accessor since 4.0, declaredClass added at 4.7.

The name of the class. The declared class name is formatted as esri.folder.className.

spatialReference Property spatialReference SpatialReferenceautocast

The spatial reference of the WebMap. This indicates the projected or geographic coordinate system used to locate geographic features in the map. For complete listings of supported coordinate systems, see Using spatial references.

timeExtent Property timeExtent TimeExtent Since: ArcGIS Maps SDK for JavaScript 4.31 InitialViewProperties since 4.0, timeExtent added at 4.31.

The initial time extent of the WebMap.

timeZone Property timeZone String Since: ArcGIS Maps SDK for JavaScript 4.28 InitialViewProperties since 4.0, timeZone added at 4.28.

The initial time zone of the WebMap.

Possible Values

Value	Description
system	Dates and times are be displayed in the timezone of the device or browser.
unknown	Dates and times will be displayed based on the time zone that has been defined for the layer. No adjustments are made to the display of date info. Additionally, the TimeSlider is disabled.
Specified IANA timezone	Dates and times will be displayed in the specified IANA time zone. See wikipedia - List of tz database time zones.

See also

MapView.timeZone

viewpoint Property viewpoint Viewpointautocast

The initial viewpoint of the WebMap.

Method Overview

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Return Type	Summary	Class
	Adds one or more handles which are to be tied to the lifecycle of the object.	Accessor
this	Creates a deep clone of this object.	InitialViewProperties
Boolean	Returns true if a named group of handles exist.	Accessor
	Removes a group of handles owned by the object.	Accessor

Method Details

addHandles Inherited Method addHandles(handleOrHandles, groupKey) Inherited from Accessor Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, addHandles added at 4.25.

Adds one or more handles which are to be tied to the lifecycle of the object. The handles will be removed when the object is destroyed.

// Manually manage handles
const handle = reactiveUtils.when(
  () => !view.updating,
  () => {
    wkidSelect.disabled = false;
  },
  { once: true }
);

this.addHandles(handle);

// Destroy the object
this.destroy();

Parameters

handleOrHandles WatchHandle|WatchHandle []

Handles marked for removal once the object is destroyed.

groupKey *

optional

Key identifying the group to which the handles should be added. All the handles in the group can later be removed with Accessor.removeHandles(). If no key is provided the handles are added to a default group.

clone Method clone(){this}

Creates a deep clone of this object. Any properties that store values by reference will be assigned copies of the referenced values on the cloned instance.

Returns

Type	Description
this	A deep clone of the class instance that invoked this method.

hasHandles Inherited Method hasHandles(groupKey){Boolean} Inherited from Accessor Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, hasHandles added at 4.25.

Returns true if a named group of handles exist.

Parameter

groupKey *

optional

A group key.

Returns

Type	Description
Boolean	Returns `true` if a named group of handles exist.

Example

// Remove a named group of handles if they exist.
if (obj.hasHandles("watch-view-updates")) {
  obj.removeHandles("watch-view-updates");
}

removeHandles Inherited Method removeHandles(groupKey) Inherited from Accessor Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, removeHandles added at 4.25.

Removes a group of handles owned by the object.

Parameter

groupKey *

optional

A group key or an array or collection of group keys to remove.

Example

obj.removeHandles(); // removes handles from default group

obj.removeHandles("handle-group");
obj.removeHandles("other-handle-group");