通过js api 对一个图层上进行标记点的生成

来源：互联网发布：怎么样弄中文域名编辑：程序博客网时间：2024/05/16 05:27

不需要使用Toolbar。直接使用map的graphics类中的add方法。

例子代码：通过JSON对象方式

/** * 在地图上画一个点 * * @param featureSet * @return */function addPointsToMap() {console.debug("开始画点");var myPoint = {"geometry":{"x":-104.4140625,"y":69.2578125,"spatialReference":{"wkid":4326}},"attributes":{"XCoord":-104.4140625,"YCoord":69.2578125,"Plant":"Mesa Mint"},"symbol":{"color":[255,0,0,128],"size":12,"angle":0,"xoffset":0,"yoffset":0,"type":"esriSMS","style":"esriSMSSquare","outline":{"color":[0,0,0,255],"width":1,"type":"esriSLS","style":"esriSLSSolid"}},"infoTemplate":{'title':'Vernal Pool Locations',"content":'Latitude: ${YCoord} <br/> Longitude: ${XCoord} <br/> Plant Name:${Plant}'}};//根据一个JSON构建一个Graphic对象var gra= new esri.Graphic(myPoint);//在当前地图上添加这个图像对象myMap.graphics.add(gra);//删除这个图像//myMap.graphics.remove(gra);}

通过编程new 对象方式
var pt = new esri.geometry.Point(accidents[i].xcoord, accidents[i].ycoord, myMap.spatialReference);var infoTemplate = new esri.InfoTemplate(accidents[i].sgdd, accidents[i].dzzb);var attr = {"XCoord" : accidents[i].xcoord,"YCoord" : accidents[i].ycoord,"Plant" : "Mesa Mint"}var graphic = new esri.Graphic(pt, picSymbol, attr, infoTemplate);// 在当前地图上添加这个图像对象myMap.graphics.add(graphic);

api参考

http://resources.esri.com/help/9.3/arcgisserver/apis/javascript/arcgis/help/jsapi_start.htm#jsapi/map.htm#toMap