Class: OpenStreetMapImageLayer

OpenStreetMapImageLayer(displayName)

Provides a layer that shows Open Street Map imagery.

Constructor

new OpenStreetMapImageLayer(displayName)

Constructs an Open Street Map layer.
Parameters:
Name Type Description
displayName String This layer's display name. "Open Street Map" if this parameter is null or undefined.
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Extends

Members

detailControl :Number

Controls the level of detail switching for this layer. The next highest resolution level is used when an image's texel size is greater than this number of pixels, up to the maximum resolution of this layer.
Type:
  • Number
Inherited From:
Default Value:
  • 1.75
Source:

(readonly) displayName :String

The displayName specified to this layer's constructor.
Type:
  • String
Overrides:
Source:

enabled :Boolean

Indicates whether to display this layer.
Type:
  • Boolean
Inherited From:
Default Value:
  • true
Source:

(readonly) imageFormat :String

The image format specified to this layer's constructor.
Type:
  • String
Inherited From:
Source:

(readonly) inCurrentFrame :Boolean

Indicates whether elements of this layer were drawn in the most recently generated frame.
Type:
  • Boolean
Overrides:
Source:

(readonly) layerIdentifier :String

The WMTS layer identifier of this layer.
Type:
  • String
Inherited From:
Source:

maxActiveAltitude :Number

The eye altitude below which this layer is displayed, in meters.
Type:
  • Number
Inherited From:
Default Value:
  • Number.MAX_VALUE (always displayed)
Source:

minActiveAltitude :Number

The eye altitude above which this layer is displayed, in meters.
Type:
  • Number
Inherited From:
Default Value:
  • -Number.MAX_VALUE (always displayed)
Source:

opacity :Number

This layer's opacity, which is combined with the opacity of shapes within layers. Opacity is in the range [0, 1], with 1 indicating fully opaque.
Type:
  • Number
Inherited From:
Default Value:
  • 1
Source:

pickEnabled :Boolean

Indicates whether this layer is pickable.
Type:
  • Boolean
Overrides:
Default Value:
  • true
Source:

(readonly) resourceUrl :String

The url specified to this layer's constructor.
Type:
  • String
Inherited From:
Source:

retrievalQueueSize :Number

Controls how many concurrent tile requests that are allowed for this layer.
Type:
  • Number
Inherited From:
Default Value:
  • WorldWind.configuration.layerRetrievalQueueSize;
Source:

(readonly) styleIdentifier :String

The style identifier specified to this layer's constructor.
Type:
  • String
Inherited From:
Source:

(readonly) tileMatrixSet :String

The tileMatrixSet specified to this layer's constructor.
Type:
  • String
Inherited From:
Source:

time :Date

The time to display. This property selects the layer contents that represents the specified time. If null, layer-type dependent contents are displayed.
Type:
  • Date
Inherited From:
Source:

(readonly) timeString :String

The time string passed to this layer's constructor.
Type:
  • String
Inherited From:
Source:

Methods

(protected) doRender(dc)

Subclass method called to display this layer. Subclasses should implement this method rather than the render method, which determines enable, pick and active altitude status and does not call this doRender method if the layer should not be displayed.
Parameters:
Name Type Description
dc DrawContext The current draw context.
Overrides:
Source:

(protected) isLayerInView(dc) → {boolean}

Indicates whether this layer is within the current view. Subclasses may override this method and when called determine whether the layer contents are visible in the current view frustum. The default implementation always returns true.
Parameters:
Name Type Description
dc DrawContext The current draw context.
Inherited From:
Source:
Returns:
true If this layer is within the current view, otherwise false.
Type
boolean

refresh()

Refreshes the data associated with this layer. The behavior of this function varies with the layer type. For image layers, it causes the images to be re-retrieved from their origin.
Inherited From:
Source:

render(dc)

Displays this layer. Subclasses should generally not override this method but should instead override the doRender method. This method calls that method after verifying that the layer is enabled, the eye point is within this layer's active altitudes and the layer is in view.
Parameters:
Name Type Description
dc DrawContext The current draw context.
Inherited From:
Source: