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ia.TileLayer Class

Extends ia.LayerBase
Defined in: ia\maps\layers\TileLayer.js:1
Module: ia

For handling Background Tile layers.

Constructor

ia.TileLayer

(
  • inSource
)

Defined in ia\maps\layers\TileLayer.js:1

Parameters:

  • inSource String

    The spatial source.

Methods

_mapEventHandler

(
  • event
)
private

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:324

Handles when to carry out hit tests.

Parameters:

_renderTile

(
  • tile
)
private

Defined in ia\maps\layers\TileLayer.js:86

Renders a tile image.

Parameters:

  • tile Object

    The tile object.

addCanvases

()

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:233

Adds drawing canvases for the layer when the layer is shown. This method was introduced to fix a bug a chrome when multiple canvases were affecting rendering. It basically reduces the number of unused canvases which are taking up memory.

addEventListener

(
  • eventType
  • fnc
  • obj
)

Inherited from ia.EventDispatcher: ia\events\EventDispatcher.js:15

Add an event listener.

Parameters:

  • eventType String

    The type of event to listen for.

  • fnc Function

    The function to call when the event occurs.

  • obj Object

    An optional parent object.

clear

()

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:359

Clears all canvases in the layer.

createCanvas

() HTML Canvas

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:336

Creates a new canvas.

Returns:

HTML Canvas: The canvas.

dispatchEvent

(
  • event
)

Inherited from ia.EventDispatcher: ia\events\EventDispatcher.js:50

Dispatch an event to the listeners.

Parameters:

  • event Object

    The event object.

getVisible

() Boolean

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:132

Gets the visibility of the layer.

Returns:

Boolean: true/false.

loadSource

()

Inherited from ia.LayerBase but overwritten in ia\maps\layers\TileLayer.js:113

Loads the source data.

parseData

(
  • data
)

Defined in ia\maps\layers\TileLayer.js:138

Parses the data after its completed loading.

Parameters:

  • data JSON

    The raw data.

removeCanvases

()

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:292

Removes drawing canvases for the layer when the layer is hidden. This method was introduced to fix a bug a chrome when multiple canvases were affecting rendering. It basically reduces the number of unused canvases which are taking up memory.

removeListener

(
  • obj
)

Inherited from ia.EventDispatcher: ia\events\EventDispatcher.js:30

Removes all event listeners for the given object.

Parameters:

  • obj Object

    The object.

render

()

Inherited from ia.LayerBase but overwritten in ia\maps\layers\TileLayer.js:59

Draws or renders the tiles.

setMap

(
  • map
  • map
)

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:175

Sets the map and canvas for the layer.

Parameters:

  • map ia.Map

    The map.

  • map HTML Element

    The container.

setVisible

(
  • value
)

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:143

Sets the visibility of the layer.

Parameters:

  • value Boolean

    true/false.

Properties

bBox

ia.BoundingBox

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:66

The bounding box for the layer.

canvas

HTML Canvas

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:50

The canvas associated with this layer.

context

HTML Canvas Context

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:58

The canvas context associated with this layer.

id

String

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:24

The id of the layer.

Default: ""

interactive

Boolean

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:92

Is selection and highlighting switched on.

Default: false

isLoaded

Boolean

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:83

Indicates whether the layer is loaded.

Default: false

map

ia.Map

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:42

The map associated with this layer.

name

String

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:33

The name of the layer.

Default: ""

showDataTips

Boolean

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:110

Are data tips displayed.

Default: trueE

showInLayerList

Boolean

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:74

Should the layer be displayed ina layer list.

Default: false

showLabels

Boolean

Inherited from ia.LayerBase: ia\charts\layers\LayerBase.js:101

Show labels.

Default: false

url

Number

Defined in ia\maps\layers\TileLayer.js:33

The minimum display extent.

Default: -Infinity

url

String

Defined in ia\maps\layers\TileLayer.js:51

The spatial data source for the layer.

url

Number

Defined in ia\maps\layers\TileLayer.js:42

The maximum display extent.

Default: Infinity

url

String

Defined in ia\maps\layers\TileLayer.js:24

The path to tiles.

Default: "./"