Get each polygon Id!
Dear Owen,
Thanks for your replay, i hope you spend an amazing holiday 
Actually the objective from having the polygon ID is to have control on it and delete some polygons when we have intersection.
Below the steps regarding the scenario.
Scenario:
- Keep the first one.
- Check the second one if intersect delete the second if not keep it.
- Check the third one if intersect delete if not keep it.
- ...
I update the Javascript code using service network area for arcgis online that you can test the result (Working but not deleting the intersection) the problem is i don't know how to check the intersection and deleted from the list.
I am using ESRI services you can run the application in your computer in order to check.
The part regarding the intersection is mentioned in a commentaire.
Below the code:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=7, IE=9, IE=10">
<!--The viewport meta tag is used to improve the presentation and behavior of the samples
on iOS devices-->
<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no">
<title>Dispatch Algorithm Implementation</title>
<link rel="stylesheet" href="http://js.arcgis.com/3.9/js/dojo/dijit/themes/claro/claro.css">
<link rel="stylesheet" href="http://js.arcgis.com/3.9/js/esri/css/esri.css">
<style>
body,html,#main{margin:0;padding:0;height:100%;width:100%;}
</style>
<script>var dojoConfig = { parseOnLoad: true };</script>
<script src="http://js.arcgis.com/3.9/"></script>
<script>
dojo.require("esri.map");
dojo.require("esri.tasks.servicearea");
dojo.require("dijit.dijit");
dojo.require("dijit.layout.BorderContainer");
dojo.require("dijit.layout.ContentPane");
dojo.require("dijit.form.HorizontalSlider");
dojo.require("dijit.form.HorizontalRuleLabels");
dojo.require("dijit.form.HorizontalRule");
dojo.require("dijit.form.Button");
dojo.require("esri.graphic");
dojo.require("esri.tasks.geometry");
dojo.require("esri.layers.graphics");
dojo.require("esri.Color");
var map, serviceAreaTask, params, clickpoint, gsvc;
function init() {
esri.config.defaults.io.proxyUrl = "/proxy";
map = new esri.Map("map", {
basemap: "streets",
center: [-122.447, 37.781],
zoom: 14
});
params = new esri.tasks.ServiceAreaParameters();
params.defaultBreaks= [1];
params.outSpatialReference = map.spatialReference;
params.returnFacilities = true;
serviceAreaTask = new esri.tasks.ServiceAreaTask("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Network/USA/NAServer/Service Area");
gsvc = new esri.tasks.GeometryService("http://tasks.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer");
dojo.connect(dijit.byId("hslider"), "onChange", updateHorizontalLabel);
updateHorizontalLabel();
}
// Create function that updates label when changed
function updateHorizontalLabel() {
// Get access to nodes/widgets we need to get/set values
var hSlider = dijit.byId("hslider");
var label = dojo.byId("decValue");
// Update label
label.innerHTML = hSlider.get("value");
params.defaultBreaks = [hSlider.value/60];
// if (typeof clickpoint != 'undefined') {
// AddDT(clickpoint);
// };
}
//Clears DTP
function ClearDTP() {
map.graphics.clear();
}
function AddDTP() {
map.graphics.clear(); //clear existing graphics
//define the symbology used to display the results and input point
var pointSymbol = new esri.symbol.PictureMarkerSymbol({
"angle":0,
"xoffset":0,
"yoffset":10,
"type":"esriPMS",
"url":"http://icons.iconarchive.com/icons/aha-soft/standard-transport/256/police-car-icon.png",
"contentType":"image/png",
"width":30,
"height":30
});
var m_mapPoint = [];
m_mapPoint[1] = new esri.geometry.Point([-122.447, 37.781],new esri.SpatialReference({ wkid:4326 }));
m_mapPoint[2] = new esri.geometry.Point([-122.457, 37.791],new esri.SpatialReference({ wkid:4326 }));
m_mapPoint[3] = new esri.geometry.Point([-122.450, 37.785],new esri.SpatialReference({ wkid:4326 }));
m_mapPoint[4] = new esri.geometry.Point([-122.452, 37.775],new esri.SpatialReference({ wkid:4326 }));
m_mapPoint[5] = new esri.geometry.Point([-122.452, 37.791],new esri.SpatialReference({ wkid:4326 }));
m_mapPoint[6] = new esri.geometry.Point([-122.450, 37.777],new esri.SpatialReference({ wkid:4326 }));
m_mapPoint[7] = new esri.geometry.Point([-122.470, 37.777],new esri.SpatialReference({ wkid:4326 }));
var location1 = new esri.Graphic(m_mapPoint[1],pointSymbol);
var location2 = new esri.Graphic(m_mapPoint[2],pointSymbol);
var location3 = new esri.Graphic(m_mapPoint[3],pointSymbol);
var location4 = new esri.Graphic(m_mapPoint[4],pointSymbol);
var location5 = new esri.Graphic(m_mapPoint[5],pointSymbol);
var location6 = new esri.Graphic(m_mapPoint[6],pointSymbol);
var location7 = new esri.Graphic(m_mapPoint[7],pointSymbol);
map.graphics.add(location1);
map.graphics.add(location2);
map.graphics.add(location3);
map.graphics.add(location4);
map.graphics.add(location5);
map.graphics.add(location6);
map.graphics.add(location7);
var features = [];
features.push(location1);
features.push(location2);
features.push(location3);
features.push(location4);
features.push(location5);
features.push(location6);
features.push(location7);
var facilities = new esri.tasks.FeatureSet();
facilities.features = features;
params.facilities = facilities;
//solve
serviceAreaTask.solve(params,function(solveResult){
var result = solveResult;
var serviceAreaSymbol = new esri.symbol.SimpleFillSymbol(
esri.symbol.SimpleFillSymbol.STYLE_SOLID,
new esri.symbol.SimpleLineSymbol(
esri.symbol.SimpleLineSymbol.STYLE_SOLID,
new dojo.Color([232,104,80]), 2
),
new dojo.Color([232,104,80,0.25])
);
var polygonSymbol = new esri.symbol.SimpleFillSymbol(esri.symbol.SimpleFillSymbol.STYLE_SOLID, new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID,
new dojo.Color([232,104,80]), 2),new dojo.Color([232,104,80,0.25]));
var polys = solveResult.serviceAreaPolygons;
var index=0;
// Filters all the polygons that intersect each other
filterIntersections(polys, index);
// Put the remaining polygons on the map
dojo.forEach(polys, function(poly){
poly.setSymbol(polygonSymbol);
map.graphics.add(poly);
});
}, function(err){
console.log(err.message);
});
}
function filterIntersections(polys, index)
{
var polysIntersect = [];
for (var j=index+1; j<polys.length; j++)
{
polysIntersect.push(polys
}
if(polysIntersect.length == 0)
{
// End of filtering
return;
}
// Call intersect service
gsvc.intersect(polysIntersect, polys[index].geometry, function(obj){
console.log(obj);
/**************************************
Delete from polys list all polygons that intersect with polys[index]
when we delete a polygon from polys -> index--;
this part here i don't know how to do ??
***************************************/
// Next polygon
index++;
filterIntersections(polys, index);
}, function(err){
console.log(err.message);
});
}
dojo.ready(init);
</script>
</head>
<body class="claro">
<div data-dojo-type="dijit.layout.BorderContainer" data-dojo-props="design:'headline', gutters:false" style="width:100%;height:100%;margin:0px;">
<div data-dojo-type="dijit.layout.ContentPane" data-dojo-props="region:'left'">
<b>Choose your threshold to find the appropriate dispatch:</b>
<div style="width: 360px; margin: 10px">
<!-- create rules and labels above horizontal slider -->
<ol data-dojo-type="dijit.form.HorizontalRuleLabels"
data-dojo-props="
container: 'topDecoration',
style: 'height: 1.2em; font-weight: bold; margin: 0 12px;'">
<li>0</li>
<li>0:20</li>
<li>0:40</li>
<li>1:00</li>
<li>1:20</li>
<li>1:40</li>
<li>2:00</li>
</ol>
<div data-dojo-type="dijit.form.HorizontalRule"
data-dojo-props="
container: 'topDecoration',
count: 7,
style: 'height: 5px; margin: 0 12px;'">
</div>
<input id="hslider" value="60" type="range"
data-dojo-type="dijit.form.HorizontalSlider"
data-dojo-props="
minimum: 0,
maximum: 120,
showButtons: false,
discreteValues: 25">
<div style="padding-top: 10px; text-align: center;">Travel time: <strong id="decValue"></strong> Seconds</div>
<br><br>
<label class="form_col" for="NumberPC">Please Enter a Number of Patrol Car:</label>
<input name="NumberPC" id="NumberPC" type="text" size="10" />
<br><br>
<label class="form_col" for="zone">Zone :</label>
<select name="zone" id="zone">
<option value="none">Select your zone</option>
<option value="z1">zone 1</option>
<option value="z2">zone 2</option>
<option value="z3">zone 3</option>
</select>
<br><br>
<button onclick="AddDTP();">Dispatch</button>
<button onclick="ClearDTP();">Clear Dispatch</button>
</div>
</div>
<div id="map" dojotype="dijit.layout.ContentPane" data-dojo-props="region:'center'"></div>
</div>
</body>
</html>
Thanks a lot.
