Class: GeoFeature

ol.source.GeoFeature

Geo geometric thematic element type thematic layer base class.

new ol.source.GeoFeature(name, opt_options)

GeoFeature.js, line 5
Name Type Default Description
name string

Name of the layer.
opt_options Object

parameters.

Name Type Default Description
map ol.Map

The map for OpenLayers.
id string optional

Theme layer ID. The theme layer ID is created by default using CommonUtil.createUniqueID("themeLayer_").
opacity number 1 optional

Layer opacity.
logo string optional

Logo。
projection ol.proj.Projection optional

Projection information.
ratio number 1.5 optional

View ratio, 1 means that the canvas is the size of the map viewport, 2 means that the canvas is twice the width and height of the map viewport, and so on. Must be 1 or higher.
resolutions Array optional

Resolution array.
opt_option.state ol.source.State optional

Resource status.
opt_options.style Object optional

Thematic map style.
opt_options.styleGroups Object optional

Each theme type style group.
opt_options.isHoverAble boolean false optional

Whether to enable the hover event.
opt_options.highlightStyle Object optional

The style style that is triggered after the hover event is turned on.
opt_option.attributions string | Object 'Map Data <span>© <a href='http://support.supermap.com.cn/product/iServer.aspx' target='_blank'>SuperMap iServer</a></span> with <span>© <a href='https://iclient.supermap.io' target='_blank'>SuperMap iClient</a></span>' optional

Copyright information.

Extends

  • Theme

Methods

addFeatures(features)

GeoFeature.js, line 62

Add features.

Name Type Description
features SuperMap.ServerFeature | GeoJSONObject | ol.Feature

Features object.

clear()

GeoFeature.js, line 214

The contents of cleanup include data (features), thematic elements, and caching.

clearCache()

GeoFeature.js, line 205

Clear cache

createThematicFeature(feature)

GeoFeature.js, line 175

Create thematic feature.

Name Type Description
feature Object

Feature object.

destroy()

GeoFeature.js, line 44

Disposes the resource. The property that references resource is set to null.

getCacheCount(){number}

GeoFeature.js, line 225

Get the count of current caches.

Returns:
Type Description
number Return to the count of current caches.

redrawThematicFeatures(extent)

GeoFeature.js, line 99

Redraw all thematic features.

Name Type Description
extent Object

View range data.

removeAllFeatures()

GeoFeature.js, line 90

Clear all the vector elements on the current layer.

removeFeatures(features)

GeoFeature.js, line 80

Delete feature from the thematic diagram. This function removes all the vector elements that are passed in.

Name Type Description
features SuperMap.Feature.Vector

The feature object to be deleted.

setMaxCacheCount(cacheCount)

GeoFeature.js, line 234

Set the maximum number of caching bars.

Name Type Description
cacheCount number

Total count of caches.

setMaxCacheCount(featureID)

GeoFeature.js, line 246

Get all the graphics associated with feature through FeatureID. If this parameter is not passed in, the function returns all the graphs.

Name Type Description
featureID number

feature ID.