Method Overview

Method Details

cloneScheme(scheme){PointLocationScheme|PolylineLocationScheme|PolygonLocationScheme}

Clones a location scheme object.

Parameter:

scheme PointLocationScheme|PolylineLocationScheme|PolygonLocationScheme The location scheme object to clone.

Returns:

Type	Description
PointLocationScheme | PolylineLocationScheme | PolygonLocationScheme	Returns a clone of the given location scheme object.

Example:

// clones the primary scheme returned from the getSchemes() method
var locationScheme = primaryScheme.clone();

getSchemes(params){Object}

Returns a primary scheme and secondary schemes defining symbol properties for location-only visualizions in a FeatureLayer or SceneLayer. The basemap parameter determines the color of the graphics used to visualize each feature. The geometryType determines which type of symbol to return.

Parameters:

params Object See the table below for details of each parameter that may be passed to this function. Specification: basemap String|Basemap The basemap to pair with the visualization. This value indicates the best symbol color for visualizing features on top of the given basemap. geometryType String The geometry type of the features to visualize. Possible Values: point | multipoint | polyline | polygon | mesh view SceneView optional The SceneView instance in which the scheme will be used. This property is only applicable when the scheme will be used in conjunction with 3D symbols. worldScale Boolean optional Indicates if the size units of the scheme will be in meters. This should be true when the scheme is intended for 3D volumetric symbology. A view must be provided if this property is set to true.

Returns:

Type

Description

Object

Returns an object containing the optimal location scheme (and secondary schemes) to use for the given basemap. See the table below for more details of this object. Property Type Description primaryScheme PointLocationScheme | PolylineLocationScheme | PolygonLocationScheme The location scheme best suited for the given basemap, geometry type, and theme. secondarySchemes Object[] Additional location schemes that may be used to visualize data of the given geometry type overlaid on the given basemap.

Example:

// gets the primary scheme for the features of the given geometry type and basemap
var schemes = locationSchemes.getSchemes({
  basemap: map.basemap,
  geometryType: featureLayer.geometryType
});

// the best default scheme for the layer, basemap, and theme
var primaryScheme = schemes.primaryScheme;

Type Definitions

PointLocationScheme

Properties defining the location-only symbology scheme used to visualize point features.

Properties:

color Color The fill color of the marker symbol.

outline Object Properties for defining the outline of the marker symbol. Specification: color Color The outline color of the marker symbol. width Number The width of the marker symbol in pixels or points.

size Number The size of the marker symbol in pixels or points.

opacity Number The opacity of the marker symbol.

PolygonLocationScheme

Properties defining the location-only symbology scheme used to visualize polygon features driven by attribute data.

Properties:

color Color The color of the fill symbol.

outline Object Properties for defining the outline of the fill symbol. Specification: color Color The outline color of the fill symbol. width Number The width of the fill symbol in pixels or points.

opacity Number The opacity of the fill symbol.

PolylineLocationScheme

Properties defining the location-only symbology scheme used to visualize polyline features.

Properties:

color Color The color of the line symbol.

width Number The width of the line symbol in pixels or points.

opacity Number The opacity of the line symbol.