Class: Theme

Classes

Bar

Bar3D

Circle

Graph

Line

Pie

Point

RankSymbol

Ring

Vector

Members

dataObject

{ReadOnly} User data, used to generate visible shape, and can define data format and type in the sub class. e.g.: <SuperMap.Feature.Vector> 。

idstring

Unique identification of thematic elements

layerSuperMap.Layer.Theme

{ReadOnly} Thematic layer where thematic features are.

locationArray

Thematic feature pixel reference position. In general, it is determined by geographic reference. It is an array, the first element is x coordinate, and the second element is y coordinate.

lonlatSuperMap.LonLat

Thematic feature geographic reference position. In sub class, it is assigned by user data (or geographic position parameter).

shapesArray

{ReadOnly} The visible shape array by thematic features. The order of the array controls the render.

Methods

SuperMap.Feature.Theme.getDataValues(data, fields, decimalNumber){Array.<string>}

Graph.js, line 477

According to the field name array get the attribute value array of the feature. The type of attribute must be Number.

Name	Type	Description
data	SuperMap.Feature.Vector	Data.
fields	Array.<string>	Field name array.
decimalNumber	number	Decimal processing parameter

Returns:

Type	Description
Array.<string>	Attribute data values array of the field name array.

constructor(data, layer){SuperMap.Feature.Theme}

Theme.js, line 14

The Constructor.

Name	Type	Description
data	Object	User data which is used to generate visible shape. Required.
layer	SuperMap.Layer.Theme	The layer the theme element is in, required.

Returns:

Type	Description
SuperMap.Feature.Theme	Return a thematic feature.

destroy()

Theme.js, line 75

Destroys thematic features.

getLocalXY(coordinate){Array}

Theme.js, line 89

Conversion of geographic coordinates to pixel coordinates.

Name	Type	Description
coordinate	SuperMap.Geometry.Point | SuperMap.Geometry.GeoText | SuperMap.LonLat	Geo coordinate point.

Returns:

Type	Description
Array	The length of an array is 2, the first element to represent the X coordinates, the second elements to represent the Y coordinates. olution();