The minimum and maximum x- and y-coordinates of a bounding box.
Example
Specifying the extent of a Map using mxml tags inside the Map:
<esri:Map>
<esri:extent>
<esri:Extent xmin="15" ymin="54" xmax="40" ymax="71">
<esri:SpatialReference wkid="4326"/>
</esri:Extent>
</esri:extent>
</esri:Map>Specifying the extent of a Map using method property bound to an id:
<esri:Extent id="myExtent" xmin="15" ymin="54" xmax="40" ymax="71" spatialReference="{new SpatialReference(4326)}"/>
<esri:Map extent="{myExtent}"/>
center:MapPoint [read-only]
Returns the centerpoint of the extent.
This property can be used as the source for data binding.
Implementation
public function get center():MapPoint
extent:Extent [read-only]
The extent of this Extent.
This property can be used as the source for data binding.
Implementation
public function get extent():Extent
height:Number [read-only]
Distance between ymin and ymax.
This property can be used as the source for data binding.
Implementation
public function get height():Number
type:String [read-only]
The type of geometry is EXTENT.
This property can be used as the source for data binding.
Implementation
public function get type():String
width:Number [read-only]
Distance between xmin and xmax.
This property can be used as the source for data binding.
Implementation
public function get width():Number
xmax:Number [read-write]
Top-right x-coordinate of an extent envelope.
This property can be used as the source for data binding.
Implementation
public function get xmax():Number
public function set xmax(value:Number):void
xmin:Number [read-write]
Bottom-left x-coordinate of an extent envelope.
This property can be used as the source for data binding.
Implementation
public function get xmin():Number
public function set xmin(value:Number):void
ymax:Number [read-write]
Top-right y-coordinate of an extent envelope.
This property can be used as the source for data binding.
Implementation
public function get ymax():Number
public function set ymax(value:Number):void
ymin:Number [read-write]
Bottom-left y-coordinate of an extent envelope.
This property can be used as the source for data binding.
Implementation
public function get ymin():Number
public function set ymin(value:Number):void
public function Extent(xmin:Number = 0, ymin:Number = 0, xmax:Number = 0, ymax:Number = 0, spatialReference:SpatialReference = null)
Creates a new Extent object.
Parameters
| xmin:Number (default = 0) |
| |
| ymin:Number (default = 0) |
| |
| xmax:Number (default = 0) |
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| ymax:Number (default = 0) |
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| spatialReference:SpatialReference (default = null) |
public function centerAt(point:MapPoint):Extent
Returns a new extent of the same size but re-centered on the specified location.
Parameters
| point:MapPoint — The point to center at.
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Returns
| Extent —
A new extent is returned with the same width and height centered at the argument point.
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public function contains(point:MapPoint):Boolean
Checks if a point is contained in "this" extent.
Parameters
| point:MapPoint — The location to check for.
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Returns
| Boolean — True if the extent contains the point, false otherwise.
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See also
Example
ActionScript to check if a point is inside the extent:
if( extent.contains( MapPoint(graphic.geometry) ) )
public function containsExtent(env:Extent):Boolean
Checks if another extent is completely contained within "this" extent.
Parameters
Returns
| Boolean — True if this extent contains the passed extent.
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public function expand(factor:Number):Extent
Returns a new expanded extent.
For example, a value of 1.5 will create an extent that is 50% bigger.
Parameters
| factor:Number — The multiplier value.
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Returns
| Extent —
A new expanded extent.
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public function intersection(extent:Extent):Extent
Returns a new extent of the area that are in both extents.
Parameters
| extent:Extent — The minx, miny, maxx and maxy bounding box.
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Returns
| Extent —
The intersecting extent or null if extents do not intersect.
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public function intersects(geometry:Geometry):Boolean
Checks if the geometry in the argument intersects "this" extent.
Note: as of version 1.3 this method accepts any geometry. Before it only accepted other extents.
Parameters
Returns
| Boolean — true if intersects, false otherwise.
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public function offset(dx:Number, dy:Number):Extent
Returns a new extent with the given offset from "this" extent. Units are in map units.
Parameters
| dx:Number — The offset distance in map units for the x-coordinate.
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| dy:Number — The offset distance in map units for the y-coordinate.
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Returns
public function union(extent:Extent):Extent
Returns a new extent that covers both areas.
Parameters
| extent:Extent — The minx, miny, maxx and maxy bounding box.
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Returns
public function update(xmin:Number, ymin:Number, xmax:Number, ymax:Number, spatialReference:SpatialReference = null):void
Updates extent with new values.
Parameters
| xmin:Number — The new minimum x-coordinate value.
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| ymin:Number — The new minimum y-coordinate value.
|
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| xmax:Number — The new maximum x-coordinate value.
|
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| ymax:Number — The new maximum y-coordinate value.
|
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| spatialReference:SpatialReference (default = null) |
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Geometry
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