How do I check if the renderer object has been created without applying it in this code? I suspect my code is not generating an object. Any suggestions?
Thanks
Samir
Here is the complete code (and still unresponsive) for generating a renderer using Natural Breaks method:
function inti(){
...
mapM = new esri.Map("mapM", {
extent : iniExtent
});
...
stateFeatureLayer = new esri.layers.FeatureLayer("http://localhost:6080/arcgis/rest/services/State_profile/MapServer/1", {
mode : esri.layers.FeatureLayer.MODE_ONDEMAND,
outFields : ["*"],
id : "stateFeatureLayer",
infoTemplate : infoTemplate
});
distFeatureLayer = new esri.layers.FeatureLayer("http://localhost:6080/arcgis/rest/services/District_profile/MapServer/1", {
mode : esri.layers.FeatureLayer.MODE_ONDEMAND,
outFields : ["*"],
id : "distFeatureLayer",
infoTemplate : infoTemplate
});
...
}
function queryParams(newGeog, indc, indv, myURL){
if (mapM.infoWindow) {
mapM.infoWindow.hide();
}
if (flag === true) { //flag value returned from another function, and this value has been verified
myURL = "http://localhost:6080/arcgis/rest/services/State_profile/MapServer/1";
queryTask = new esri.tasks.QueryTask(myURL);
} else if (flag === false) {
myURL = "http://localhost:6080/arcgis/rest/services/District_profile/MapServer/1";
queryTask = new esri.tasks.QueryTask(myURL);
}
query = new esri.tasks.Query();
query.returnGeometry = true;
query.outFields = ["*"];
query.where = "1=1";
queryTask.execute(query);
var defaultFrom = new dojo.colorFromHex('#ffff80');
var defaultTo = new dojo.colorFromHex('#6B0000');
var resultContent = "<tr>" + indc + ": <td>${" + indv + ":formatNumber}</td></tr>"; //'indc' is the name of the indicator and 'indv' is its value
var classDef = new esri.tasks.ClassBreaksDefinition();
classDef.breakCount = 3;
classDef.classificationField = indv;
classDef.classificationMethod = "natural-breaks";
var colorRamp = new esri.tasks.AlgorithmicColorRamp();
colorRamp.fromColor = defaultFrom;
colorRamp.toColor = defaultTo;
colorRamp.algorithm = "cie-lab"; // options are: "cie-lab", "hsv", "lab-lch"
classDef.colorRamp = colorRamp;
var params = new esri.tasks.GenerateRendererParameters();
params.classificationDefinition = classDef;
var generateRenderer = new esri.tasks.GenerateRendererTask(myURL);
generateRenderer.execute(params);
dojo.connect(generateRenderer, "onComplete", function(renderer) {
if (flag === true) {
infoTemplate.setTitle("<tr>State: <td>${State_name}</tr></td>");
stateFeatureLayer.setRenderer(renderer);
stateFeatureLayer.refresh();
} else if (flag === false) {
infoTemplate.setTitle("<tr>DISTRICT: <td>${Dist_name}</tr></td><br /><tr>STATE: <td>${State_name}</tr></td>");
var strNewGeog = "State_name= '" + newGeog[0] + "'";
if (newGeog.length > 1) {
for ( i = 1; i < newGeog.length; i++){
strNewGeog += " OR State_name= '" + newGeog + "'";
}
}
distFeatureLayer.setDefinitionExpression(strNewGeog);
distFeatureLayer.selectFeatures(query, esri.layers.FeatureLayer.SELECTION_NEW);
distFeatureLayer.setRenderer(renderer);
}
infoTemplate.setContent(resultContent);
}); //another function shows and hides the relevant feature layer
}
dojo.addOnLoad(init);
Please help me resolve this.ThanksSamir
