topic JS-API: featureLayer.selectFeatures in ArcGIS JavaScript Maps SDK Questions

JS-API: featureLayer.selectFeatures

ChrisPag — Mon, 30 Nov 2015 13:43:28 GMT

Hi,

is there any posibility to select only the Features located inside the Selection-Geometry?
The Method featureLayer.selectFeatures(query,FeatureLayer.SELECTION_NEW) as well takes
the Features intersecting the shape of the Selection-Geometry

Chris

Re: JS-API: featureLayer.selectFeatures

KenBuja — Mon, 30 Nov 2015 13:49:33 GMT

You can set the spatialRelationship method of the Query task. By default, it's SPATIAL_REL_INTERSECTS, but you can set it to SPATIAL_REL_WITHIN.

Re: JS-API: featureLayer.selectFeatures

ChrisPag — Tue, 01 Dec 2015 10:09:27 GMT

Hi,

thank you for the response. Your Suggestion works in the wrong direction.

I want to select all PolygonFeatures from FLayer located completly in

a handdrawn Polygon called geo.

SPATIAL_REL_WITHIN gives a result if geo is complete located in one Feature

of FLayer.

function clipFLayer(geo) {

var selectionQuery = new esri.tasks.Query();

selectionQuery.spatialRelationship = esri.tasks.Query.SPATIAL_REL_WITHIN;

selectionQuery.geometry = geo;

FLayer = new esri.layers.FeatureLayer(theService, {outFields: ["*"]});

FLayer.selectFeatures(selectionQuery,esri.layers.FeatureLayer.SELECTION_NEW);

FLayer.on("selection-complete", findRelatedRecords);

}

Re: JS-API: featureLayer.selectFeatures

KenBuja — Tue, 01 Dec 2015 13:56:48 GMT

You're correct. That should have been SPATIAL_REL_CONTAINS

Re: JS-API: featureLayer.selectFeatures

ChrisPag — Tue, 01 Dec 2015 14:40:43 GMT

Thank you!