new Leaflet(terria, map)
- Source:
The Leaflet viewer component
Parameters:
| Name | Type | Description |
|---|---|---|
terria |
Terria | The Terria instance. |
map |
Map | The leaflet map instance. |
Extends
Members
canShowSplitter :Boolean
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- Overrides:
Gets or sets whether this viewer can show a splitter.
Type:
- Boolean
dataSourceDisplay :LeafletDataSourceDisplay
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Gets the LeafletDataSourceDisplay used to render a DataSource.
Type:
map :Map
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Gets or sets the Leaflet Map instance.
Type:
- Map
terria :Terria
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- Inherited From:
Gets or sets the Terria instance.
Type:
Methods
(protected) _createFeatureFromImageryLayerFeature(imageryFeature) → {Feature}
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- Inherited From:
Creates a {@see Feature} (based on an {@see Entity}) from a {@see ImageryLayerFeatureInfo}.
Parameters:
| Name | Type | Description |
|---|---|---|
imageryFeature |
ImageryLayerFeatureInfo | The imagery layer feature for which to create an entity-based feature. |
Returns:
The created feature.
- Type
- Feature
addAttribution(attribution)
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- Overrides:
Adds an attribution to the map.
Parameters:
| Name | Type | Description |
|---|---|---|
attribution |
Credit | The attribution to add. |
addImageryProvider(options) → {ImageryLayer}
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Returns a new layer using a provided ImageryProvider. Does not add it to anything - in Leaflet there is no equivalent to Cesium's ability to add a layer without showing it, so here this is done by show/hide. Note the optional parameters are a subset of the Cesium version of this function, with one addition (onProjectionError).
Parameters:
| Name | Type | Description | |||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
options |
Object | Options Properties
|
Returns:
The newly created layer.
- Type
- ImageryLayer
captureScreenshot() → {Promise}
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- Overrides:
Captures a screenshot of the map.
Returns:
A promise that resolves to a data URL when the screenshot is ready.
- Type
- Promise
computePositionOnScreen(position, resultopt) → {Cartesian2}
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- Overrides:
Computes the screen position of a given world position.
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
position |
Cartesian3 | The world position in Earth-centered Fixed coordinates. |
|
result |
Cartesian2 |
<optional> |
The instance to which to copy the result. |
Returns:
The screen position, or undefined if the position is not on the screen.
- Type
- Cartesian2
getAllAttribution() → {Array.<String>}
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- Overrides:
Gets all attribution currently active on the globe or map.
Returns:
The list of current attributions, as HTML strings.
- Type
- Array.<String>
getContainer() → {Element}
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- Overrides:
Gets the current container element.
Returns:
The current container element.
- Type
- Element
getCurrentExtent() → {Rectangle}
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- Overrides:
Gets the current extent of the camera. This may be approximate if the viewer does not have a strictly rectangular view.
Returns:
The current visible extent.
- Type
- Rectangle
lower(index)
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- Overrides:
Lower an item's level in the viewer This does not check that index is valid
Parameters:
| Name | Type | Description |
|---|---|---|
index |
Number | The index of the item to lower |
lowerToBottom(item)
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- Overrides:
Lowers this imagery layer to the bottom, underneath all other layers. If this item is not enabled or not shown, this method does nothing.
Parameters:
| Name | Type | Description |
|---|---|---|
item |
CatalogItem | The item to lower to the bottom (usually a basemap) |
notifyRepaintRequired()
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- Overrides:
Notifies the viewer that a repaint is required.
pickFromLocation(latlng, imageryLayerCoords, ignoreSplitter, existingFeatures)
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- Overrides:
Picks features based off a latitude, longitude and (optionally) height.
Parameters:
| Name | Type | Description |
|---|---|---|
latlng |
Object | The position on the earth to pick. |
imageryLayerCoords |
Object | A map of imagery provider urls to the coords used to get features for those imagery providers - i.e. x, y, level |
ignoreSplitter |
Boolean | An optional arg to ignore the splitter and return all feature picking results. Defaults to false. |
existingFeatures |
An optional list of existing features to concatenate the ones found from asynchronous picking to. |
raise(index)
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- Overrides:
Raise an item's level in the viewer This does not check that index is valid
Parameters:
| Name | Type | Description |
|---|---|---|
index |
Number | The index of the item to raise |
removeAttribution(attribution)
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- Overrides:
Removes an attribution from the map.
Parameters:
| Name | Type | Description |
|---|---|---|
attribution |
Credit | The attribution to remove. |
updateLayerOrder()
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Updates the order of layers on the Leaflet map to match the order in the Now Viewing pane.
updateLayerOrderAfterReorder()
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- Overrides:
Because Leaflet doesn't actually do raise/lower, just reset the orders after every raise/lower
zoomTo(target, flightDurationSecondsopt)
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- Overrides:
Zooms to a specified camera view or extent.
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
target |
CameraView | Rectangle | DataSource | The view, extent or DataSource to which to zoom. |
||
flightDurationSeconds |
Number |
<optional> |
3.0
|
The length of the flight animation in seconds. Leaflet ignores the actual value, but will use an animated transition when this value is greater than 0. |