topic Re: Select a feature with the Export Web Map service in ArcGIS JavaScript Maps SDK Questions

Select a feature with the Export Web Map service

MustafaKocaoğlu — Sat, 11 Dec 2021 20:03:28 GMT

I have a javascript app without a map. I need a png from export web map service and one of the features(geometry type polygon) should be selected. My code look like this:

var dynamicLayers = '[{"source":{"mapLayerId":3,"selectionObjectIds":['+ attrs.OBJECTID +'],"selectionSymbol":{"symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[255,0,0,255]}}}}]';
var JsonObj = {
     "bbox": JSON.stringify(result.features[0].geometry.getExtent()/*.expand(2) */),
     "format":"png",
     "transparent": "false",
     "size":"800,600",
     "f": "pjson",
     "mapScale": "1000",
     "dynamicLayers":dynamicLayer
}

$.get(getConfigValuByName("exportMapImage"), JsonObj, function (data) {
       $("#loading").show();
       var obj = JSON.parse(data);
                 /*....*/
       $("#loading").hide();
});

Re: Select a feature with the Export Web Map service

RobertScheitlin__GISP — Tue, 22 Dec 2015 14:23:27 GMT

Mustafa,

Have you tried to run those json parameters just using the rest endpoint in your web browser? I do not see any support for selectionObjectIds in the help documentation. Does your map service have dynamicLayers support enabled?

Re: Select a feature with the Export Web Map service

RobertScheitlin__GISP — Tue, 22 Dec 2015 15:03:11 GMT

Mustafa,

This is what I think will work in your situation:

var dynamicLayers = '[{"id":102,"source":{"type":"mapLayer","mapLayerId":3},"definitionExpression": "YOUR_OBJECTID_FIELD_NAME = '+ attrs.OBJECTID +'","drawingInfo":{"renderer": {"type":"simple", "symbol": {"type":"esriSFS","style":"esriSFSSolid","color":[0,0,255,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[0,0,255,255],"width":1}}}}},{"id":101,"source":{"type":"mapLayer","mapLayerId":3},"drawingInfo":{"renderer": {"type":"simple", "symbol": {"type":"esriSFS","style":"esriSFSSolid","color":[201,242,208,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[110, 110, 110, 255],"width":1}}}}}]';

Basically you define two dynamic layer one with a definition expression for the ObjectId you want to highlight and the second if the whole layer you want one the exported image (they are the same layers). The order you add them to the dynamicLayers determines their drawing order.

Re: Select a feature with the Export Web Map service

KenBuja — Sat, 11 Dec 2021 20:03:31 GMT

Is the variable used in the JSonObj incorrect? You initialize dynamicLayers but in the constructor use


"dynamicLayers":dynamicLayer

Re: Select a feature with the Export Web Map service

MustafaKocaoğlu — Tue, 22 Dec 2015 21:06:01 GMT

Yes, i tried to run those json parameters just using the rest endpoint in my browser and my map server have dynamicLayers support enabled. I got the png but not selected my geometry.

Re: Select a feature with the Export Web Map service

RobertScheitlin__GISP — Tue, 22 Dec 2015 21:15:02 GMT

Mustafa,

As I mentioned I can not find in the help docs where those parameters are supported. Look at my last reply for a solution that does work based on my testing.

Re: Select a feature with the Export Web Map service

MustafaKocaoğlu — Tue, 22 Dec 2015 21:18:20 GMT

Thank you Robert,

it works. Is it possible to let the rest of the layers visible? I mean i just want to select one feature and the other features and the other layers should be visible without changing style.

Re: Select a feature with the Export Web Map service

MustafaKocaoğlu — Tue, 22 Dec 2015 21:20:38 GMT

Thanks

Re: Select a feature with the Export Web Map service

RobertScheitlin__GISP — Tue, 22 Dec 2015 21:42:02 GMT

Mustafa,

I do not know of a way to do that.

Re: Select a feature with the Export Web Map service

MustafaKocaoğlu — Tue, 22 Dec 2015 21:51:38 GMT

Thank you anyway.