topic Re: Add graphic point after query in ArcGIS JavaScript Maps SDK Questions

Add graphic point after query

RichardMoussopo — Fri, 10 Dec 2021 20:24:05 GMT

I am not sure what I am missing in this code. I am querying a point service and get a result. and then trying to convert the result to graphic to add it on the map... but no luck.

var querystreetIntersect = new Query();
                querystreetIntersect.where = where;
                querystreetIntersect.returnGeometry = true;
                streetLayer.selectFeatures(querystreetIntersect, FeatureLayer.SELECTION_NEW, function (features) {
                    


                    var lat = features[0].attributes["Lat"];
                    var lon = features[0].attributes["Long"];


                    //var point = new Point(lon, lat, new SpatialReference({ wkid: 102100 }));
                    var simpleMarkerSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.STYLE_SQUARE, 12, new SimpleLineSymbol().setStyle(SimpleLineSymbol.STYLE_SOLID).setColor(new Color([100, 100, 100])), new Color([0, 0, 0, 0]));
                    var graphic = features[0];
                    graphic.setSymbol(symbol);
                    
                    console.log(features[0]);
                    map.graphics.add(graphic);
                    map.centerAndZoom([lon, lat], 19);
                   
                });

here is the result object from the console:

Re: Add graphic point after query

TomSellsted — Thu, 21 May 2015 23:11:09 GMT

Richard,

It is a bit hard to say without having more code for context. A couple of things I noticed. You are setting the graphic symbol with the symbol variable instead of the simpleMarkerSymbol that you just created. Is that correct?

Is the spatial reference appropriate for the graphic? This may also cause the graphic to not be displayed.

Regards,

Tom

Re: Add graphic point after query

RichardMoussopo — Fri, 22 May 2015 02:17:57 GMT

Thank you Tom for replying. Correct, I changed the "symbol" with "simpleMarkerSymbol" but still nothing. the graphic is not added to the map.

Re: Add graphic point after query

TomSellsted — Fri, 22 May 2015 02:46:59 GMT

Richard,

Did you look at the spatial reference? That may be the culprit?

Regards,

Tom Sellsted

Supervising Senior Analyst

Tom.Sellsted@YakimaWA.gov<mailto:Tom.Sellsted@YakimaWA.gov>

129 North 2nd Street, Yakima, WA 98901<x-apple-data-detectors://2/1>

Phone (509) 576-6602<tel:(509)%20576-6602> | FAX (509) 249-6835<tel:(509)%20249-6835>

46° 36' 17.86"N 120° 30' 18.23"W

Re: Add graphic point after query

RichardMoussopo — Fri, 22 May 2015 03:45:16 GMT

the spatial reference may be the issue here but I am not quite sure to verify that. I tried graphic.outSpatialReference = { wkid: 102100 };

still nothing. is there another way to convert the spatial reference?

Re: Add graphic point after query

TimWitt2 — Fri, 22 May 2015 12:15:51 GMT

Richard,

I think somehwere in there you need to create an actual graphic, so you can add it to the graphics layer?

Graphic | API Reference | ArcGIS API for JavaScript

You got your symbol and the geometry, all you need to do is create a graphic from it.

Tim

Re: Add graphic point after query

RichardMoussopo — Fri, 22 May 2015 14:51:22 GMT

Sorry guys, the problem was my service layer projection system. I had to re-project it in ArcMap in the correct projection and then republished the service.

Now it works just fine.

Thank you all...

Re: Add graphic point after query

TomSellsted — Fri, 22 May 2015 14:58:42 GMT

Richard,

Glad you got it working!

Regards,

Tom