topic Re: Graphics layer renderer in ArcGIS Viewer for Flex Questions

Graphics layer renderer

RaoBase — Tue, 12 Jun 2012 13:28:14 GMT

Hi, I am doing a query and would like to display the results using the same symbology as the layer's symbology in the service. I am using simple ESRI optimized symbols.
I would like to assign the UniqueValuerenderer to the graphics layer as below, but no symbol appears on the map. When I use a SimpleMarkerSymbol, these appear fine.
Am I missing something here?

var myLayer:ArcGISDynamicMapServiceLayer;

for each (var layer:Layer in map.layers)
{
if(layer is ArcGISDynamicMapServiceLayer && layer.name== "Test Data")
{
myLayer = layer as ArcGISDynamicMapServiceLayer;
}
}

ArcGISDynamicMapServiceLayer(myLayer).getDetails(0, new AsyncResponder(
function myResultFunction(result:LayerDetails, token:Object = null):void
{
if(result.drawingInfo.renderer is com.esri.ags.renderers.UniqueValueRenderer)
{
graphicsLayer.renderer = result.drawingInfo.renderer as UniqueValueRenderer;
}
},
function myFaultFunction(error:Object, token:Object = null):void
{
showMessage(error.toString(),false);
}

Re: Graphics layer renderer

DasaPaddock — Tue, 12 Jun 2012 14:58:18 GMT

What is the query's "outFields" set to?

Re: Graphics layer renderer

RaoBase — Tue, 12 Jun 2012 15:26:54 GMT

The query's "outFields" is set to a list of 3 fields, including the one used for creating Unique Values symbology in the mxd file.
This particular field has datatype Number and can have values 0,1 and 2.

Even setting queryLayer.outFields = [ "*" ]; does not work.

Any ideas??

Re: Graphics layer renderer

DasaPaddock — Tue, 12 Jun 2012 15:38:53 GMT

What is the contents of "http://server/.../MapServer/[layer id]?f=pjson

Does it work fine if you use a FeatureLayer?

Re: Graphics layer renderer

RaoBase — Tue, 12 Jun 2012 22:18:11 GMT

Using FeatureLayer doesn't work either.
var uv:UniqueValueRenderer = queryLayer.layerDetails.drawingInfo.renderer as UniqueValueRenderer;
graphicsLayer.renderer = uv;

The contents of "http://server/.../MapServer/[layer id]?f=pjson
is:

{
"currentVersion" : 10.02,
"id" : 0,
"name" : "Incidents",
"type" : "Feature Layer",
"description" : "",
"definitionExpression" : "",
"geometryType" : "esriGeometryPoint",
"copyrightText" : "",
"parentLayer" : null,
"subLayers" : [],
"minScale" : 0,
"maxScale" : 0,
"defaultVisibility" : true,
"extent" : {
    "xmin" : -3.25129999965429,
    "ymin" : 56.1690999995917,
    "xmax" : -2.24930000025779,
    "ymax" : 58.1633000001311,
    "spatialReference" : {
      "wkid" : 4277
    }
},
"hasAttachments" : false,
"htmlPopupType" : "esriServerHTMLPopupTypeAsHTMLText",
"drawingInfo" : {"renderer" :
    {
      "type" : "uniqueValue",
      "field1" : "CATEGORY",
      "field2" : null,
      "field3" : null,
      "fieldDelimiter" : ", ",
      "defaultSymbol" : null,
      "defaultLabel" : "\u003call other values\u003e",
      "uniqueValueInfos" : [
        {
          "value" : "0",
          "label" : "Slight",
          "description" : "",
          "symbol" :
          {
            "type" : "esriPMS",
            "url" : "29D26027",
            "imageData" : "iVBORw0KGgoAAAANSUhEUgAAAAsAAAALCAYAAACprHcmAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAANRJREFUGJWVzz1KxGAQxvHfGwIBbW0E8WMLS29gZaXyFmolNlvY7AE8gjZ2FsIeYMWtgwew9BgWxgj2EpXEYneNC0bwgSmG+c8zz6T+ofRnEwuHddBPWMOTxihfdiNo5uBYuBYMknZ3S7AbS/t540TQpBCfHWHQcf04lu5zhjPn07+yJpP5DM56VJ1wTa/N3FQvgs1u76ykmsB1ME7Y7mSbavztfFcZxswBdn5BHxZrl22MdZ8br/YeP5zV9LGKopaNFlQXtyveWhhXS95xPq2p5p/+Apl6N1KFu/HFAAAAAElFTkSuQmCC",
            "contentType" : "image/png",
            "color" : null,
            "width" : 8,
            "height" : 8,
            "angle" : 0,
            "xoffset" : 0,
            "yoffset" : 0
          }
        },
        {
          "value" : "1",
          "label" : "Serious",
          "description" : "",
          "symbol" :
          {
            "type" : "esriPMS",
            "url" : "FA94EED4",
            "imageData" : "iVBORw0KGgoAAAANSUhEUgAAAAsAAAALCAYAAACprHcmAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAM9JREFUGJWVzjFKxGAQxfH/QCA5hcIWlt7ASqZQk4Baic0W23gAj6CNvZADrLBtvq9LZelBFD2BiUiezRo+YXXxwRQz/AZexj+SpUvbtmdmNgd2gWdJy7quHwD9wCGEe+Aq+d03s6MY40lZlpeAMoAY47mkFE6RdBFCeKyqqsnWh8WWugug+a4x24Jnaec3YO8P/DphM1tJOvhNSlpNOM/zZhiGU0mHG+zTOI53E3b3z67rjvu+vwbmwI6kFzNbFkVx6+7vaWfc/QO4Wc/GfAGTBUtp13zhgAAAAABJRU5ErkJggg==",
            "contentType" : "image/png",
            "color" : null,
            "width" : 8,
            "height" : 8,
            "angle" : 0,
            "xoffset" : 0,
            "yoffset" : 0
          }
        },
        {
          "value" : "2",
          "label" : "Undefined",
          "description" : "",
          "symbol" :
          {
            "type" : "esriPMS",
            "url" : "BB2574B4",
            "imageData" : "iVBORw0KGgoAAAANSUhEUgAAAAsAAAALCAYAAACprHcmAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAALRJREFUGJWV0DFOQlEQheHvJi+5u8CEwpIdWFmplVgRGgoaFuASsLE3YQGYsAxKFqLRFZAhhGsBvPcwonGSKSb555wzU/lHVe2h0McIF3jDHK+JcgLveMGktdvDTeGuMEyU6qD48A2sKzHAErOj8viPuOMGzrkr4je422SO+MTlWTTnDxH1gQtcnYUjFo0yM9zj+gd0hecaTmwLt3i0/3MH7yXneYp4SqzbyhIbTA99tD+x+AIicyt91vk+1wAAAABJRU5ErkJggg==",
            "contentType" : "image/png",
            "color" : null,
            "width" : 8,
            "height" : 8,
            "angle" : 0,
            "xoffset" : 0,
            "yoffset" : 0
          }
        }
      ]
    },
    "transparency" : 0,
    "labelingInfo" : null},
"displayField" : "NAME",
"fields" : [
    {
      "name" : "objectid",
      "type" : "esriFieldTypeOID",
      "alias" : "objectid"},
    {
      "name" : "INCIDENTID",
      "type" : "esriFieldTypeString",
      "alias" : "INCIDENTID",
      "length" : 50},
    {
      "name" : "INCIDENTDATE",
      "type" : "esriFieldTypeDate",
      "alias" : "INCIDENTDATE",
      "length" : 36},
    {
      "name" : "LONGITUDE",
      "type" : "esriFieldTypeDouble",
      "alias" : "LONGITUDE"},
    {
      "name" : "LATITUDE",
      "type" : "esriFieldTypeDouble",
      "alias" : "LATITUDE"},
    {
      "name" : "ERROR",
      "type" : "esriFieldTypeInteger",
      "alias" : "ERROR"},
    {
      "name" : "SPEED",
      "type" : "esriFieldTypeInteger",
      "alias" : "SPEED"},
    {
      "name" : "DIRECTION",
      "type" : "esriFieldTypeInteger",
      "alias" : "DIRECTION"},
    {
      "name" : "shape",
      "type" : "esriFieldTypeGeometry",
      "alias" : "shape"},
    {
      "name" : "CATEGORY",
      "type" : "esriFieldTypeDouble",
      "alias" : "CATEGORY"},

],
"typeIdField" : null,
"types" : null,
"relationships" : [],
"capabilities" : "Map,Query,Data"
}

Re: Graphics layer renderer

DasaPaddock — Wed, 13 Jun 2012 19:11:04 GMT

This JSON is invalid. There shouldn't be a comma on this line:
"alias" : "CATEGORY"},

Was this just a copy/paste error?

See: http://jsonlint.com/

Re: Graphics layer renderer

RaoBase — Thu, 14 Jun 2012 08:49:37 GMT

Yes, this was just a copy/paste mistake. Has anyone been able to successfully set the feature layer renderer to a graphics layer?

Re: Graphics layer renderer

DasaPaddock — Thu, 14 Jun 2012 14:06:38 GMT

It looks like it should work.

Have you confirmed that the features have a value of 0, 1 or 2 for the CATEGORY field?

Have you tried just putting the FeatureLayer in the map?

Is this service publicly available?

Can you provide a complete test case?