LineSymbol3DLayer

AMD: require(["esri/symbols/LineSymbol3DLayer"], (LineSymbol3DLayer) => { /* code goes here */ });
ESM: import LineSymbol3DLayer from "@arcgis/core/symbols/LineSymbol3DLayer.js";
Class: esri/symbols/LineSymbol3DLayer
Inheritance: LineSymbol3DLayer Symbol3DLayer Accessor
Since: ArcGIS Maps SDK for JavaScript 4.0

LineSymbol3DLayer renders Polyline geometries using a flat 2D line with a LineSymbol3D in a 3D SceneView. MapView does not support 3D symbols.

The color of the line is set in the material property. The width of the line may be defined in either points or pixels with the size property. Line width and color can also be data-driven by adding size and/or color visual variables to any Renderer that uses this symbol layer.

A LineSymbol3DLayer must be added to the symbolLayers property of a LineSymbol3D. It may also be added to PolygonSymbol3D symbols to create outlines of polygon features. Multiple symbol layers may be used in a single symbol. The image below depicts a line FeatureLayer whose features are symbolized with a LineSymbol3D containing a LineSymbol3DLayer.

symbols-3d-lines

See Symbol3DLayer and Symbol3D to read more general information about 3D symbols, symbol layers and how they relate to one another.

See also
Example
const symbol = {
  type: "line-3d",  // autocasts as new LineSymbol3D()
  symbolLayers: [{
    type: "line",  // autocasts as new LineSymbol3DLayer()
    size: 2,  // points
    material: { color: "black" },
    cap: "round",
    join: "round",
    pattern: {  // autocasts as new LineStylePattern3D()
      type: "style",
      style: "dash"
    },
    marker: {  // autocasts as new LineStyleMarker3D()
      type: "style",
      style: "arrow",
      placement: "end",
      color: "red"  // black line with red arrows
    }
  }]
};

Constructors

LineSymbol3DLayer

Constructor
new LineSymbol3DLayer(properties)
Parameter
properties Object
optional

See the properties for a list of all the properties that may be passed into the constructor.

Property Overview

Any properties can be set, retrieved or listened to. See the Working with Properties topic.
Show inherited properties Hide inherited properties
Name Type Summary Class

The style used to draw the endpoint of a line.

LineSymbol3DLayer

The name of the class.

Accessor

The style used to draw the intersection of two line segments within a line geometry.

LineSymbol3DLayer

Optional markers to be placed at the start and/or end of each line geometry.

LineSymbol3DLayer

The material used to shade the line.

LineSymbol3DLayer

The pattern used to render the line stroke.

LineSymbol3DLayer

The width of the line in points.

LineSymbol3DLayer

The symbol type.

LineSymbol3DLayer

Property Details

cap

Property
cap String
Since: ArcGIS Maps SDK for JavaScript 4.12 LineSymbol3DLayer since 4.0, cap added at 4.12.

The style used to draw the endpoint of a line. This also applies to the tips of each pattern segment along the line. See the table below for possible values.

Possible Value Example
butt sls-cap-butt
round sls-cap-round
square sls-cap-square

Possible Values:"butt" |"round" |"square"

Default Value:butt

declaredClass

Inherited
Property
declaredClass Stringreadonly
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.7 Accessor since 4.0, declaredClass added at 4.7.

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

join

Property
join String
Since: ArcGIS Maps SDK for JavaScript 4.12 LineSymbol3DLayer since 4.0, join added at 4.12.

The style used to draw the intersection of two line segments within a line geometry. See the table below for possible values.

Possible Value Example
bevel sls-join-bevel
miter sls-join-miter
round sls-join-round

Possible Values:"miter" |"round" |"bevel"

Default Value:miter

marker

Property
marker LineStyleMarker3D
Since: ArcGIS Maps SDK for JavaScript 4.23 LineSymbol3DLayer since 4.0, marker added at 4.23.

Optional markers to be placed at the start and/or end of each line geometry.

By default, no markers are placed. If markers are added, marker size is proportional to the width of the line. While markers inherit the line's color by default, you can use the color attribute to set a different one.

Example
const symbol = {
  type: "line-3d",  // autocasts as new LineSymbol3D()
  symbolLayers: [{
    type: "line",  // autocasts as new LineSymbol3DLayer()
    material: { color: "black" },
    marker: {  // autocasts as new LineStyleMarker3D()
      type: "style",
      style: "arrow",
      placement: "end",
      color: "red"  // black line with red arrows
    }
  }]
};

material

Property
material Objectautocast

The material used to shade the line. This property defines the line's color.

Property
optional
Autocasts from Object|Number[]|String

The color of the line. This can be autocast with an array of rgb(a) values, named string, hex string or an hsl(a) string, an object with r, g, b, and a properties, or a Color object.

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

pattern

Property
pattern LineStylePattern3D
Since: ArcGIS Maps SDK for JavaScript 4.22 LineSymbol3DLayer since 4.0, pattern added at 4.22.

The pattern used to render the line stroke. By default, the lines are shown as solid.

Example
const symbol = {
  type: "line-3d",  // autocasts as new LineSymbol3D()
  symbolLayers: [{
    type: "line",  // autocasts as new LineSymbol3DLayer()
    size: 2,  // points
    material: { color: "black" },
    pattern: {  // autocasts as new LineStylePattern3D()
      type: "style",
      style: "dash"
    }
  }]
};

size

Property
size Numberautocast
Autocasts from Number|String

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

Default Value:"1px"
Examples
// width in points
symbolLayer.size = 4;
// width in pixels
symbolLayer.size = "2px";
// width in points
symbolLayer.size = "4pt";

type

Property
type Stringreadonly

The symbol type.

For LineSymbol3DLayer the type is always "line".

Method Overview

Show inherited methods Hide inherited methods
Name Return Type Summary Class

Adds one or more handles which are to be tied to the lifecycle of the object.

Accessor

Creates a deep clone of the symbol layer.

LineSymbol3DLayer
*

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

Symbol3DLayer

Returns true if a named group of handles exist.

Accessor

Removes a group of handles owned by the object.

Accessor

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

Symbol3DLayer

Method Details

addHandles

Inherited
Method
addHandles(handleOrHandles, groupKey)
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, addHandles added at 4.25.

Adds one or more handles which are to be tied to the lifecycle of the object. The handles will be removed when the object is destroyed.

// Manually manage handles
const handle = reactiveUtils.when(
  () => !view.updating,
  () => {
    wkidSelect.disabled = false;
  },
  { once: true }
);

this.addHandles(handle);

// Destroy the object
this.destroy();
Parameters
handleOrHandles WatchHandle|WatchHandle[]

Handles marked for removal once the object is destroyed.

groupKey *
optional

Key identifying the group to which the handles should be added. All the handles in the group can later be removed with Accessor.removeHandles(). If no key is provided the handles are added to a default group.

clone

Method
clone(){LineSymbol3DLayer}

Creates a deep clone of the symbol layer.

Returns
Type Description
LineSymbol3DLayer A deep clone of the object that invoked this method.
Example
// Creates a deep clone of the graphic's first symbol layer
let symLyr = graphic.symbol.symbolLayers.at(0).clone();

fromJSON

Inherited
Method
fromJSON(json){*}static

Creates a new instance of this class and initializes it with values from a JSON object generated from an ArcGIS product. 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
Type Description
* Returns a new instance of this class.

hasHandles

Inherited
Method
hasHandles(groupKey){Boolean}
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, hasHandles added at 4.25.

Returns true if a named group of handles exist.

Parameter
groupKey *
optional

A group key.

Returns
Type Description
Boolean Returns true if a named group of handles exist.
Example
// Remove a named group of handles if they exist.
if (obj.hasHandles("watch-view-updates")) {
  obj.removeHandles("watch-view-updates");
}

removeHandles

Inherited
Method
removeHandles(groupKey)
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, removeHandles added at 4.25.

Removes a group of handles owned by the object.

Parameter
groupKey *
optional

A group key or an array or collection of group keys to remove.

Example
obj.removeHandles(); // removes handles from default group

obj.removeHandles("handle-group");
obj.removeHandles("other-handle-group");

toJSON

Inherited
Method
toJSON(){Object}
Inherited from Symbol3DLayer

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

Returns
Type Description
Object The ArcGIS portal JSON representation of an instance of this class.

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