require(["esri/tasks/DataLayer"], function(DataLayer) { /* code goes here */ });Description
(Added at v1.4)
Input for properties of ClosestFacilityParameters,RouteParameters or ServiceAreaParameters. The DataLayer can be used to define the following for each parameter type:
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samplesthat use this class.
Constructors ConstantsSPATIAL_REL_CONTAINS Part or all of a feature from feature class 1 is contained within a feature from feature class 2. SPATIAL_REL_CROSSES The feature from feature class 1 crosses a feature from feature class 2. SPATIAL_REL_ENVELOPEINTERSECTS The envelope of feature class 1 intersects with the envelope of feature class 2. SPATIAL_REL_INDEXINTERSECTS The envelope of the query feature class intersects the index entry for the target feature class. SPATIAL_REL_INTERSECTS Part of a feature from feature class 1 is contained in a feature from feature class 2. SPATIAL_REL_OVERLAPS Features from feature class 1 overlap features in feature class 2. SPATIAL_REL_TOUCHES The feature from feature class 1 touches the border of a feature from feature class 2. SPATIAL_REL_WITHIN The feature from feature class 1 is completely enclosed by the feature from feature class 2. Properties
Constructor Details
Creates a new DataLayer object.
Sample:
require([
"esri/tasks/DataLayer", ...
], function(DataLayer, ... ) {
var stops = new DataLayer();
...
});
Property Details
The geometry to apply to the spatial filter. The spatial relationship as specified by spatialRelationship is applied to this geometry while performing the query.
require([
"esri/map", "esri/tasks/DataLayer", ...
], function(Map, DataLayer, ... ) {
var map = new Map( ... );
var stops = new DataLayer();
stops.geometry = map.extent;
...
});
The name of the data layer in the map service that is being referenced.
Sample:
require([
"esri/tasks/DataLayer", ...
], function(DataLayer, ... ) {
var stops = new DataLayer();
stops.name = "Hospitals";
...
});
The spatial relationship to be applied on the input geometry while performing the query. See the Constants Table for a list of valid values.
Sample:
require([
"esri/tasks/DataLayer", ...
], function(DataLayer, ... ) {
var stops = new DataLayer();
stops.spatialRelationship = DataLayer.SPATIAL_REL_CONTAINS;
...
});
A where clause for the query. Any legal SQL where clause operating on the fields in the layer is allowed, for example: query.where = "POP2000 > 350000".
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