topic Re: Raster Layer > Query for Extent in ArcGIS JavaScript Maps SDK Questions

Raster Layer > Query for Extent

MatthieuThery1 — Tue, 26 Nov 2019 16:02:37 GMT

Hi,

Is it possible to query for extent a Raster Layer (as a MapImageLayer sublayer) ?

For other types of sublayers I'm using QueryTask and the executeForExtent method and it works ok (below), however I'm getting an error when querying Raster Layers "{"error":{"code":400,"message":"Invalid or missing input parameters.","details":[]}}". I have tried various combination of queries to no avail.

As an example how would you query fo extent the hillshade raster in this sandbox example? ArcGIS API for JavaScript Sandbox , when looking at the rest endpoint it has "Supports Returning Query Extent: true" , so it might be possible?

const query = new Query({

outSpatialReference: spatialReference.wkid,

geometry: view.extent

});

const queryTask2 = new QueryTask({

url

});

queryTask2.executeForExtent(query)

Re: Raster Layer > Query for Extent

UndralBatsukh — Tue, 03 Dec 2019 17:33:55 GMT

Hi there,

QueryTask is returning an error because ImageService REST end point does not support `returnExtentOnly` option with Query operation. The SDK document for executeForExtent explains this method only works for feature services and map service layers.

Hope this helps,

-Undral

Re: Raster Layer > Query for Extent

MatthieuThery1 — Tue, 03 Dec 2019 18:11:18 GMT

Yes that's a map service layer I'm trying to query for extent.