featureLayer

geo. featureLayer

new featureLayer(argopt) → {geo.featureLayer}

Description:

  • Layer to draw points, lines, and polygons on the map The polydata layer provide mechanisms to create and draw geometrical shapes such as points, lines, and polygons.

Source:
Parameters:
Name Type Attributes Description
arg geo.layer.spec <optional>

Specification for the new layer.
Returns:
Type
geo.featureLayer

Extends

Members

idle

Description:

  • Getter for the idle state. Read only.

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Inherited From:
Properties:
Name Type Description
idle boolean

true if the object is idle (onIdle would call a handler immediately).

Getter for the idle state. Read only.

(protected) newLayerId

Description:

  • Gets a new id number for a layer.

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Inherited From:

Gets a new id number for a layer.

(inner) m_this

Description:

  • private

Source:

private

Methods

active(argopt) → {boolean|this}

Description:

  • Get/Set whether or not the layer is active. An active layer will receive native mouse when the layer is on top. Non-active layers will never receive native mouse events.

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Inherited From:
Parameters:
Name Type Attributes Description
arg boolean <optional>

If specified, the new active value.
Returns:
Type
boolean | this

addChild(child) → {this}

Description:

  • Add a child (or an array of children) to the object.

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Inherited From:
Parameters:
Name Type Description
child geo.object | Array.<geo.object>

A child object or array of child objects.
Returns:
Type
this

addFeature(feature) → {this}

Description:

  • Add a feature to the layer if it is not already present.

Source:
Parameters:
Name Type Description
feature object

the feature to add.
Returns:
Type
this

addPromise(promise) → {this}

Description:

  • Add the promise here and also propagate up the scene tree.

Source:
Inherited From:
Parameters:
Name Type Description
promise Promise

A promise object.
Returns:
Type
this

attribution(argnullable) → {string|this}

Description:

  • Get or set the attribution html content that will displayed with the layer. By default, nothing will be displayed. Note, this content is not html escaped, so care should be taken when rendering user provided content.

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Inherited From:
Parameters:
Name Type Attributes Description
arg string <nullable>

An html fragment
Returns:

Chainable as a setter

Type
string | this

autoshareRenderer() → {boolean|string}

Description:

  • Get the setting of autoshareRenderer.

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Inherited From:
Returns:
Type
boolean | string

canvas() → {HTMLCanvasElement}

Description:

  • Get canvas of the layer.

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Inherited From:
Returns:

The canvas element associated with the layer.

Type
HTMLCanvasElement

children() → {Array.<geo.object>}

Description:

  • Get an array of the child objects.

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Inherited From:
Returns:

A copy of the array of child objects.

Type
Array.<geo.object>

clear() → {this}

Description:

  • Clear all features in layer.

Source:
Returns:
Type
this

createFeature(featureName, arg) → {geo.feature}

Description:

  • Create a feature by name.

Source:
Parameters:
Name Type Description
featureName string

The name of the feature to create.
arg object

Properties for the new feature.
Returns:

The created feature.

Type
geo.feature

dataTime() → {geo.timestamp}

Description:

  • Return last time data got changed.

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Inherited From:
Returns:

The data time.

Type
geo.timestamp

deleteFeature(feature) → {this}

Description:

  • Delete feature.

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Parameters:
Name Type Description
feature geo.feature

The feature to delete.
Returns:
Type
this

draw() → {this}

Description:

  • Draw. If the layer is visible, call the parent class's draw function and the renderer's render function.

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Overrides:
Returns:
Type
this

features(valopt) → {Array.<geo.feature>|this}

Description:

  • Get/Set drawables.

Source:
Parameters:
Name Type Attributes Description
val Array.<geo.feature> <optional>

A list of features, or unspecified to return the current feature list. If a list is provided, features are added or removed as needed.
Returns:

The current features associated with the layer or the current layer.

Type
Array.<geo.feature> | this

fromLocal(input) → {geo.geoPosition}

Description:

  • Transform coordinates from a local coordinate system to world coordinates.

Source:
Inherited From:
Parameters:
Name Type Description
input geo.geoPosition

Renderer coordinates.
Returns:

World coordinates.

Type
geo.geoPosition

gcsFeatures(valopt, nullable) → {string|this}

Description:

  • Get or set the gcs for all features. For features, the default is usually the map's ingcs.

Source:
Parameters:
Name Type Attributes Description
val string <optional>
<nullable>

If undefined, return the current gcs. If null, use the map's interface gcs. Otherwise, set a new value for the gcs. When getting the current gcs, if not all features have the same gcs, undefined will be returned.
Returns:

A string used by geo.transform. If the map interface gcs is in use, that value will be returned. If the gcs is set, return the current class instance.

Type
string | this

geoIsOn(event, handleropt) → {boolean}

Description:

  • Report if an event handler is bound to this object.

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Inherited From:
Parameters:
Name Type Attributes Description
event string | Array.<string>

An event or list of events to check.
handler function <optional>

A function that might be bound. If undefined, this will report true if there is any handler for the specified event.
Returns:

true if any of the specified events are bound to the specified handler.

Type
boolean

geoOff(eventopt, argopt, nullable) → {this}

Description:

  • Remove handlers from one event or an array of events. If no event is provided all handlers will be removed.

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Inherited From:
Parameters:
Name Type Attributes Description
event string | Array.<string> <optional>

An event or a list of events from geo.event or defined by the user, or undefined to remove all events (in which case arg is ignored).
arg function | Array.<function()> <optional>
<nullable>

A function or array of functions to remove from the events or a falsy value to remove all handlers from the events.
Returns:
Type
this

geoOn(event, handler) → {this}

Description:

  • Bind an event handler to this object.

Source:
Inherited From:
Parameters:
Name Type Description
event string

An event from geo.event or a user-defined value.
handler function

A function that is called when event is triggered. The function is passed a geo.event object.
Returns:
Type
this

geoOnce(event, handler) → {function}

Description:

  • Bind an event handler to this object that will fire once and then deregister itself.

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Inherited From:
Parameters:
Name Type Description
event string

An event from geo.event or a user-defined value.
handler function

A function that is called when event is triggered. The function is passed a geo.event object.
Returns:

The actual bound handler. This is a wrapper around the handler that was passed to the function.

Type
function

geoTrigger(event, args, childrenOnlyopt) → {this}

Description:

  • Trigger an event (or events) on this object and call all handlers.

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Inherited From:
Parameters:
Name Type Attributes Description
event string

The event to trigger.
args object

Arbitrary argument to pass to the handler.
childrenOnly boolean <optional>

If truthy, only propagate down the tree.
Returns:
Type
this

height() → {number}

Description:

  • Return the height of the layer in pixels.

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Inherited From:
Returns:

The height of the parent map in pixels.

Type
number

id(valopt) → {string|this}

Description:

  • Get/Set id of the layer.

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Inherited From:
Parameters:
Name Type Attributes Description
val string | null <optional>

If null, generate a new layer id. Otherwise, if specified, the new id of the layer.
Returns:
Type
string | this

initialized(valopt) → {boolean|this}

Description:

  • Get/Set if the layer has been initialized.

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Inherited From:
Parameters:
Name Type Attributes Description
val boolean <optional>

If specified, update the initialized value. Otherwise, return the current instance.
Returns:

Either the initialized value or this.

Type
boolean | this

map() → {geo.map}

Description:

  • Get the map associated with this layer.

Source:
Inherited From:
Returns:

The map associated with the layer.

Type
geo.map

modified() → {this}

Description:

  • Update the timestamp to the next global timestamp value.

Source:
Inherited From:
Returns:
Type
this

moveDown(nopt) → {this}

Description:

  • Bring the layer below the given number of layers. This will rotate the current z-indices for this and the previous n layers.

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Inherited From:
Parameters:
Name Type Attributes Default Description
n number <optional>
 1

The number of positions to move.
Returns:
Type
this

moveToBottom() → {this}

Description:

  • Bring the layer to the bottom of the map layers.

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Inherited From:
Returns:
Type
this

moveToTop() → {this}

Description:

  • Bring the layer to the top of the map layers.

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Inherited From:
Returns:
Type
this

moveUp(nopt) → {this}

Description:

  • Bring the layer above the given number of layers. This will rotate the current z-indices for this and the next n layers.

Source:
Inherited From:
Parameters:
Name Type Attributes Default Description
n number <optional>
 1

The number of positions to move.
Returns:
Type
this

name(valopt) → {string|this}

Description:

  • Get/Set name of the layer.

Source:
Inherited From:
Parameters:
Name Type Attributes Description
val string <optional>

If specified, the new name of the layer.
Returns:
Type
string | this

node() → {HTMLDivElement}

Description:

  • Get root node of the layer.

Source:
Inherited From:
Returns:
Type
HTMLDivElement

onIdle(handler) → {this}

Description:

  • Bind a handler that will be called one time when all internal promises are resolved. If there are no outstanding promises, this is invoked synchronously.

Source:
Inherited From:
Parameters:
Name Type Description
handler function

A function taking no arguments.
Returns:
Type
this

opacity(opacityopt) → {number|this}

Description:

  • Get or set the current layer opacity. The opacity is in the range [0-1]. An opacity of 0 is not the same as setting visible(false), as interactions can still occur with the layer.

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Inherited From:
Parameters:
Name Type Attributes Description
opacity number <optional>

If specified, set the opacity. Otherwise, return the opacity.
Returns:

The current opacity or the current layer.

Type
number | this

parent(argopt) → {this|geo.sceneObject}

Description:

  • Get/set parent of the object.

Source:
Inherited From:
Parameters:
Name Type Attributes Description
arg geo.sceneObject <optional>

The new parant or undefined to get the current parent.
Returns:
Type
this | geo.sceneObject

removeChild(child) → {this}

Description:

  • Remove a child (or array of children) from the object.

Source:
Inherited From:
Parameters:
Name Type Description
child geo.object | Array.<geo.object>

A child object or array of child objects.
Returns:
Type
this

removeFeature(feature) → {this}

Description:

  • Remove a feature without destroying it.

Source:
Parameters:
Name Type Description
feature geo.feature

The feature to remove.
Returns:
Type
this

removePromise(promise) → {this}

Description:

  • Remove the promise here and also propagate up the scene tree.

Source:
Inherited From:
Parameters:
Name Type Description
promise Promise

A promise object.
Returns:
Type
this

renderer() → {geo.renderer}

Description:

  • Get the renderer for the layer.

Source:
Inherited From:
Returns:

The renderer associated with the layer or null if there is no renderer.

Type
geo.renderer

rendererName() → {string}

Description:

  • Get the name of the renderer.

Source:
Inherited From:
Returns:
Type
string

selectionAPI(valopt) → {boolean|this}

Description:

  • Get/Set selectionAPI of the layer.

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Overrides:
Parameters:
Name Type Attributes Description
val boolean <optional>

If specified change the selectionAPI state of the layer, otherwise return the current state.
Returns:

The selectionAPI state or the current layer.

Type
boolean | this

sticky() → {boolean}

Description:

  • Get whether or not the layer is sticky (navigates with the map).

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Inherited From:
Returns:
Type
boolean

timestamp() → {number}

Description:

  • Get time.

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Inherited From:
Returns:

The timestamp. This is 0 if the timestamp has never been modified.

Type
number

toLocal(input) → {geo.geoPosition}

Description:

  • Transform coordinates from world coordinates into a local coordinate system specific to the underlying renderer. This method is exposed to allow direct access the rendering context, but otherwise should not be called directly. The default implementation is the identity operator.

Source:
Inherited From:
Parameters:
Name Type Description
input geo.geoPosition

World coordinates.
Returns:

Renderer coordinates.

Type
geo.geoPosition

updateTime() → {geo.timestamp}

Description:

  • Return the modified time for the last update that did something.

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Inherited From:
Returns:

The update time.

Type
geo.timestamp

visible(valopt) → {boolean|this}

Description:

  • Get/Set visibility of the layer.

Source:
Overrides:
Parameters:
Name Type Attributes Description
val boolean <optional>

If specified, change the visibility, otherwise return it.
Returns:

The current visibility or the layer.

Type
boolean | this

width() → {number}

Description:

  • Return the width of the layer in pixels.

Source:
Inherited From:
Returns:

The width of the parent map in pixels.

Type
number

zIndex(zIndexopt, allowDuplicateopt) → {number|this}

Description:

  • Get or set the z-index of the layer. The z-index controls the display order of the layers in much the same way as the CSS z-index property.

Source:
Inherited From:
Parameters:
Name Type Attributes Description
zIndex number <optional>

The new z-index, or undefined to return the current z-index.
allowDuplicate boolean <optional>

When setting the z index, if this is truthy, allow other layers to have the same z-index. Otherwise, ensure that other layers have distinct z-indices from this one.
Returns:
Type
number | this