LineSymbol

Class: esri/symbols/LineSymbol
Inheritance: LineSymbol Symbol Accessor
Subclasses: SimpleLineSymbol
Since: ArcGIS API for JavaScript 4.0

Line symbols are used to draw Polyline features in a FeatureLayer in a 2D MapView.

The only subclass of LineSymbol is SimpleLineSymbol.

SimpleLineSymbol may also be used to symbolize 2D polyline features in a 3D SceneView. However, it is recommended you use LineSymbol3D instead.

See also:

Property Overview

Any properties can be set, retrieved or listened to. See the Working with Properties topic.
NameTypeSummary
Color

The color of the symbol.

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String

The name of the class.

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String

The symbol type.

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Number

The width of the symbol in points.

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Property Details

The color of the symbol. This can be autocast with a named string; hex string; array of rgb or rgba values; an object with r, g, b, and a properties; or a Color object.

Default Value: "black"
Examples:
// CSS color string
symbol.color = "dodgerblue";
// HEX string
symbol.color = "#33cc33";
// array of RGBA values
symbol.color = [51, 204, 51, 0.3];
// object with rgba properties
symbol.color = {
  r: 51,
  g: 51,
  b: 204,
  a: 0.7
};

declaredClassStringreadonly

The name of the class. The declared class name is formatted as esri.folder.className.

typeStringreadonly

The symbol type.

Possible values: simple-line-symbol

The width of the symbol in points. This value may be autocast with a string expressing size in points or pixels (e.g. 12px).

Default Value: 0.75
Examples:
// width in points
symbol.width = 4;
// width in pixels
symbol.width = "2px";
// width in points
symbol.width = "4pt";

Method Overview

NameReturn TypeSummary
*

Creates a new instance of this class and initializes it with values from a JSON object generated from a product in the ArcGIS platform.

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Object

Converts an instance of this class to its ArcGIS Portal JSON representation.

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Method Details

fromJSON(json){*}static

Creates a new instance of this class and initializes it with values from a JSON object generated from a product in the ArcGIS platform. The object passed into the input json parameter often comes from a response to a query operation in the REST API or a toJSON() method from another ArcGIS product. See the Using fromJSON() topic in the Guide for details and examples of when and how to use this function.

Parameter:
json Object

A JSON representation of the instance in the ArcGIS format. See the ArcGIS REST API documentation for examples of the structure of various input JSON objects.

Returns:
TypeDescription
*Returns a new instance of this class.

toJSON(){Object}inherited

Converts an instance of this class to its ArcGIS Portal JSON representation. See the Using fromJSON() topic in the Guide for more information.

Returns:
TypeDescription
ObjectThe ArcGIS Portal JSON representation of an instance of this class.

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