topic ArcGIS JS query from geometry in ArcGIS JavaScript Maps SDK Questions

ArcGIS JS query from geometry

Wade — Mon, 26 Jun 2023 01:23:27 GMT

I drew a range on the map, and used query to query which objects are in the geometry, but the result was not very accurate.

// evt.vertices draw-complete let polygon = new Polygon({ type: "polygon", rings: evt.vertices, spatialReference: { wkid: 3826 } }); let drawExtent = new Graphic({ geometry: polygon, symbol: { type: "polygon-3d", symbolLayers: [{ type: "fill", material: { color: [0, 0, 0, 0] }, outline: { color: "red", width: 1 }, }] } }); Promise.all(sceneView.map.allLayers.map(function (view) { if (view.type === "scene") { const query = view.createQuery(); query.geometry = drawExtent.geometry; query.spatialRelationship = "intersects"; query.returnGeometry = true; return view.queryFeatures(query) .then(function (result) { let queryResultLayer = []; if (result.features.length > 0) { result.features.forEach(function (item) { queryResultLayer.push(item.layer.title); }); } return queryResultLayer; }); } })) .then(function (results) { // results }); });

Re: ArcGIS JS query from geometry

Sage_Wall — Tue, 20 Jun 2023 12:33:06 GMT

Hi @Wade , it looks like you are passing in a graphic as the `query.geometry` instead of a Geometry object (or one of it's subclasses.)

https://developers.arcgis.com/javascript/latest/api-reference/esri-rest-support-Query.html#geometry

Re: ArcGIS JS query from geometry

Wade — Tue, 20 Jun 2023 13:12:19 GMT

Hi @Sage_Wall
The above is just part of my program, when I query, I pass drawExtent.geometry.

Re: ArcGIS JS query from geometry

Sage_Wall — Tue, 20 Jun 2023 14:29:40 GMT

What is the geometry you are passing into the query? Does it have a spatial reference defined? Would it be possible to create a codepen or provide a complete example showing how the expected results differ from the query result?

Re: ArcGIS JS query from geometry

Wade — Mon, 26 Jun 2023 01:31:23 GMT

The code update, polygons are generated after my drawing is done, Mainly drawing objects in range queries.

Excuse me, the query range is XYmin XYmax, not the range of 3D objects, so it will be inaccurate?