948ESRI Javascript多边形

我使用的是esri javascript 3.5。我有一个要将它绘制成多边形的点列表。我发现这个https://developers.arcgis.com/en/javascript/jssamples/util_relation.html，但我不知道如何使用它。我能知道我可以从哪里得到样品吗？说我有点的阵列...948ESRI Javascript多边形

 dojo.require("esri.map"); 
    dojo.require("esri.graphic"); 

    var map ; 
    function init() { 
    map = new esri.Map("map",{ 
     basemap:"topo", 
     center:[103.8, 1.35], //long, lat 
     zoom:13 
    }); 
       dojo.connect(map,"onLoad", loadData); 
    }//end init 
    function loadData(){ 
    var arr =[]; 
var p = new esri.geometry.Point(103.8, 1.35); 
arr.push(p); 
p = new esri.geometry.Point(103.8, 1.35222); 
arr.push(p); 
var polySymbolRed = new esri.symbol.SimpleFillSymbol(
       esri.symbol.SimpleLineSymbol.STYLE_SOLID, 
       new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, 
       new dojo.Color([0, 0, 0, 1]), 1), 
       new dojo.Color([255, 0, 0, 0.2]) 
     ); 

var gra = new esri.Graphic(arr,polySymbolRed); 
map.graphics.add(gra); 


    }

来源

2013-07-27 user903772

你很近，你只需要按摩数组创建.Graphic前位：

var poly = new esri.geometry.Polygon({ 
       "spatialReference": {" wkid":4326 }, 
       "fields": [{ 
        "name": "FID", 
        "type": "esriFieldTypeOID", 
        "alias": "FID", 
        "domain": null   
       },...] 
      }); 
var ring = new Array(); 

//push points into array 

poly.addRing(ring); 

var gra = new esri.Graphic(poly,polySymbolRed); 
//Maybe: 
//var gra = new esri.Graphic(esri.geometry.geographicToWebMercator(poly),polySymbolRed); 
//depending on what SR your map is using...

来源

2013-07-29 01:15:51 Juffy

我想提请你指定为多边形var polygon = new esri.geometry.Polygon（new esri.SpatialReference（{wkid：4326}））; polygon.addRing（[[74.00390625,32.02670629333614]，[25.9703383,44.4813038]，[26.103418,44.4593175]，[26.1695982,44.4587537]]）; esrimap.graphics.add（new esri.Graphic（polygon，polylineSymbol））;但它正在绘制多段线 –

您的变量'polylineSymbol'似乎表明问题出在哪里...... :)（多边形实际上只是一个带有FillSymbol而不是LineSymbol的多段线 - 如果您给它一个LineSymbol，它将绘制作为一条线）。 – Juffy

-1

var polygon = new Polygon(new SpatialReference({wkid:4326})); 
polygon.addRing([[-120,30],[-120,40],[-110,40],[-110,30],[-120,30]]) 

var point = new Point(-115, 35, {"spatialReference":{"wkid":4326 }}) 
polygon.contains(point); //returns true

来源

2015-01-06 10:36:20 for

948ESRI Javascript多边形

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