Class: GetFeaturesByBufferParameters

SuperMap.GetFeaturesByBufferParameters

The dataset buffer query parameter class.

new SuperMap.GetFeaturesByBufferParameters(options)

GetFeaturesByBufferParameters.js, line 7
Name Type Description
options Object

The parameters.

Name Type Default Description
bufferDistance number

The buffer distance. The unit is identical to the dataset units of the queried layer.
geometry Object

Spatial query conditions.
datasetNames Array.<string>

A list of data set names in the dataset collection.
fields Array.<string> optional

Set the query result return field. All fields are returned by default.
attributeFilter string optional

The condition of the attribute query.
returnContent boolean true optional

Whether to return query result directly.
fromIndex number 0 optional

The minimum index.
toIndex number 19 optional

The maximum index.

Extends

Members

aggregationsObject

Aggregate query parameters, which only support data services from the Elasticsearch service.

attributeFilterstring

The query conditions.

bufferDistancenumber

The buffer distance. The unit is identical to the dataset units of the queried layer.

datasetNameArray.<string>

A list of data set names in the dataset collection.

fieldsArray.<string>

Sets the result query field. If specified, features of GetFeaturesResult only contains the specified field. If not, return all fields.

fromIndexnumber

The minimum index. If this value is greater than the max index, the result is null.

geometryObject

The geometry query condition.
The point type could be: SuperMap.Geometry.Point|L.Point|L.GeoJSON|ol.geom.Point|ol.format.GeoJSON.
The line type could be: SuperMap.Geometry.LineString|SuperMap.Geometry.LinearRing|L.Polyline|L.GeoJSON|ol.geom.LineString|ol.format.GeoJSON.
The Polygon type could be: SuperMap.Geometry.Polygon|L.Polygon|L.GeoJSON|ol.geom.Polygon|ol.format.GeoJSON.

maxFeaturesnumber

When processing the SQL query, it is used to set the number of query result returned by the server.

Default Value:
1000

returnContentboolean

Whether to return the new created resource representation or return the URL of the new resource. If the result is true, then the new created resource, i.e., the the query result representation. If the result is false, the URI of the querying result is returned.

Default Value:
true

returnCountOnlyboolean

Only return the total amount of the query result.

toIndexnumber

The maximum index. If this value is greater than the max index, treat this value as the end index.

Default Value:
19

Methods

SuperMap.GetFeaturesByBufferParameters.toJsonParameters(params){string}

GetFeaturesByBufferParameters.js, line 79

Transform the SuperMap.GetFeaturesByBufferParameters to JSON string.

Name Type Description
params SuperMap.GetFeaturesByBufferParameters

The GetFeaturesByBufferParameters
Returns:
Type Description
string The converted JSON string.

inherited destroy()

GetFeaturesParametersBase.js, line 67

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

inherited destroy()

GetFeaturesParametersBase.js, line 67

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