topic How to show labels for dynamic layer info in ArcGIS Dynamic Map Service Layer in ArcGIS JavaScript Maps SDK Questions

How to show labels for dynamic layer info in ArcGIS Dynamic Map Service Layer

shilpakaramar — Fri, 19 Mar 2021 06:52:25 GMT

I have used below code for show dynamic layers which is working fine and now I have to display labels for that dynamic layers.

How to do that with below code?

var dataSource = new esri.layers.TableDataSource();
    var layerSource = new esri.layers.LayerDataSource();
    var dynamicLayerInfo = new esri.layers.DynamicLayerInfo();
    var drawingOptions = new esri.layers.LayerDrawingOptions();
    var layerinfoTemplate = new www.InfoTemplate();
    var options = [];
    dataSource.workspaceId = "..."
    dataSource.dataSourceName = "..."; //shapefile name
    layerSource.dataSource = dataSource;
    dynamicLayerInfo.id = i;
    dynamicLayerInfo.name = "...";
    dynamicLayerInfo.source = layerSource;

    dynamicLayerInfos.push(dynamicLayerInfo);
    var labelClass = new w.LabelClass({
        useCodedValues: false,
        labelExpression: "Name: {CITY_NAME} Area: {CITY_AREA}",
        labelPlacement: 'esriServerLinePlacementAboveAfter',
        symbol: new w.TextSymbol({
                      color: new w.Color("#000000")
                })
        });
        drawingOptions.renderer = new SimpleRenderer(new SimpleLineSymbol(new 
 SimpleLineSymbol.STYLE_SOLID, new Color([0, 0, 0]), 2));
        drawingOptions.showLabels = true;
        options[0] = drawingOptions;
        EsriDynamicLayer.setDynamicLayerInfos(dynamicLayerInfos, true);
        EsriDynamicLayer.setLayerDrawingOptions(options);

Re: How to show labels for dynamic layer info in ArcGIS Dynamic Map Service Layer

nita14 — Fri, 19 Mar 2021 07:33:18 GMT

Hi,

please enable dynamic layers support on your service first.

https://enterprise.arcgis.com/en/server/latest/publish-services/windows/enabling-dynamic-layers-on-a-map-service-in-manager.htm

Hope this helps,

Adam

Re: How to show labels for dynamic layer info in ArcGIS Dynamic Map Service Layer

shilpakaramar — Fri, 19 Mar 2021 07:39:57 GMT

Hi @nita14

the dynamic layer is already enabled and dyaminc layers are already visible in the map.

Now I want to show labels of the layers that are visible in map,

Can you help me on that

Re: How to show labels for dynamic layer info in ArcGIS Dynamic Map Service Layer

nita14 — Fri, 19 Mar 2021 07:47:01 GMT

Did you assign labelClass to drawingOptions ?

https://developers.arcgis.com/javascript/3/jsapi/layerdrawingoptions-amd.html#labelinginfo

Re: How to show labels for dynamic layer info in ArcGIS Dynamic Map Service Layer

shilpakaramar — Fri, 19 Mar 2021 07:52:02 GMT

@nita14

yes i have assign it like below

var labelClass = new w.LabelClass({

useCodedValues: false,

labelExpression: "Name: {CITY_NAME} Area: {CITY_AREA}",

labelPlacement: 'esriServerLinePlacementAboveAfter',

symbol: new w.TextSymbol({

color: new w.Color("#000000")

})

});

drawingOptions.labelingInfo = [labelClass];

Re: How to show labels for dynamic layer info in ArcGIS Dynamic Map Service Layer

nita14 — Fri, 19 Mar 2021 08:00:43 GMT

labelPlacement: 'esriServerLinePlacementAboveAfter',

is wrong. Check valid values first.

https://developers.arcgis.com/javascript/3/jsapi/labelclass-amd.html#labelplacement

Basically, leave only labelExpression and check it that works. Zoom in the map to check if labels are there.

Adam

Re: How to show labels for dynamic layer info in ArcGIS Dynamic Map Service Layer

shilpakaramar — Fri, 19 Mar 2021 09:19:04 GMT

@nita14

Tried this but not showing labels

var labelClass = new w.LabelClass({

labelExpression: "Name: {CITY_NAME} Area: {CITY_AREA}",

});

drawingOptions.labelingInfo = [labelClass];

Re: How to show labels for dynamic layer info in ArcGIS Dynamic Map Service Layer

shilpakaramar — Fri, 07 May 2021 03:51:50 GMT

can you help me in this.. I am literally stuck in this.