How to set extents in an ArcGIS map?

How to set extents in an ArcGIS map?

The base layer is an ArcGIS Online layer with a world extent. The second layer has an extent of the State of Kansas, which is the desired extent to use. The initLayers () function creates the two layers.

Which is an example of the ArcGIS REST API?

A 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 a new instance of this class. Shrinks the original extent to the intersection with the input extent.

How to change the extent geometry in JavaScript?

Modifies the extent geometry in-place with X and Y offsets in map units. Converts an instance of this class to its ArcGIS portal JSON representation. Expands the original extent to include the extent of the input Extent. Centers the extent to the specified Point . This method modifies the extent geometry in-place.

Which is an example of a map extent?

For example, the ArcGIS Online services all have a world extent. Instead of the world extent, you may want your map extent to be the extent of your local data. In the following example, two services or layers are used.

When to return the intersection extent in JavaScript?

Returns the intersection extent if the input geometry is an extent that intersects this extent. Boolean is returned when passing in non-Extent geometry types. The geometry used to test the intersection. Valid geometry includes Point, Multipoint, Extent, Polygon, or Polyline.

How do you return an extent in JavaScript?

Bottom-left Y-coordinate of an extent envelope. A new extent is returned with the same width and height centered at the argument point. Sets the cache property to undefined. When “true”, the geometry in the argument is contained in this extent. Expands the extent by the factor given. Returns the value for a named property stored in the cache.

What happens to layer in ArcGIS API for JavaScript?

Since: ArcGIS API for JavaScript 4.17 Destroys the layer and any associated resources (including its portalItem, if it is a property on the layer). The layer can no longer be used once it has been destroyed. The destroyed layer will be removed from its parent object like Map, WebMap, WebScene, Basemap, Ground, or GroupLayer.

How to set the extent of the base layer?

Set the extent using the Map.setExtent method. As a variation of #2, set each property of the extent separately. When you include multiple services in the same application, the default extent is the initial extent of the base layer.

How do you define the extent in JavaScript?

JavaScript API. Extent. require([“esri/geometry/Extent”], function(Extent) { /* code goes here */ }); The minimum and maximum X and Y coordinates of a bounding box. Extent is used to describe the visible portion of a MapView. When working in a SceneView, Camera is used to define the visible part of the map within the view.

How to set spatial reference in ArcGIS JavaScript?

At versions 1.0 and 1.1 of the ArcGIS JavaScript API, any map service layers you used were required to correspond with the map’s spatial reference. Beginning at version 1.2, you can use dynamic map services that have a different spatial reference from the map.

How to define custom extent and spatial reference in JavaScript?

This sample shows how you can define a custom extent and spatial reference when you create a map. At versions 1.0 and 1.1 of the ArcGIS JavaScript API, any map service layers you used were required to correspond with the map’s spatial reference.

How to get the API reference for ArcGIS?

An array of the current GraphicsLayers in the map. Current height of the map in screen pixels. Reference to HTML DIV or other element where the map is placed on the page. Displays the InfoWindow on a map. When true, the key sequence of shift then click to recenter the map is enabled. When true, double click zoom is enabled.

What’s the default extent of the base map?

If you are using more than one service, the default extent is the initial extent of the base map or first layer added. If you want the starting extent to be something other than the default extent, you have several options for setting this new extent.

How to change the extent of an array in JavaScript?

Returns an array with either one Extent that’s been shifted to within +/- 180 or two Extents if the original extent intersects the International Dateline. Modifies the extent geometry in-place with X and Y offsets in map units. Converts an instance of this class to its ArcGIS portal JSON representation.