arcgis3.22算时当前最新的3版本的API了，项目需要，整理一下简单的标记标绘功能，以后就直接crtl+C,ctrl+V了。

代码符合AMD规范，方便模块化开发调用。

polygon多边形

back.drawPolygon = function(){
      toolbar = new Draw(ArcGIS.mainMap);
      toolbar.on("draw-end", addPolygon);
      toolbar.activate("polygon");
}

function addPolygon(evt){
     toolbar.deactivate();
     var symbol = new SimpleFillSymbol(  
                SimpleFillSymbol.STYLE_SOLID,  
                new SimpleLineSymbol(  
                  SimpleLineSymbol.STYLE_SOLID,  
                  new Color([255,0,0,0.65]), 2  
                ),  
                new Color([0,0,0,0.35])  
              ); 
     ArcGIS.mainMap.graphics.add(new Graphic(evt.geometry, symbol));
}

polygon图片填充

var fillSymbol = new PictureFillSymbol(
      "images/mangrove.png", new SimpleLineSymbol(
        SimpleLineSymbol.STYLE_SOLID,
        new Color('#000'), 1), 42,42);

polygon半透明，简单颜色填充

var symbol = new SimpleFillSymbol(  
       SimpleFillSymbol.STYLE_SOLID,  
       new SimpleLineSymbol(  
         SimpleLineSymbol.STYLE_SOLID,  
         new Color([255,0,0,0.65]), 2  
       ),  
       new Color([0,0,0,0.35])  
     );

Circle

back.drawArea = function() {
      toolbar = new Draw(ArcGIS.mainMap);
      toolbar.on("draw-end", addCircle);
      toolbar.activate("circle");
}

function addCircle(evt){
  toolbar.deactivate();
 var symbol = new SimpleFillSymbol(  
        SimpleFillSymbol.STYLE_SOLID,  
        new SimpleLineSymbol(  
          SimpleLineSymbol.STYLE_SOLID,  
          new Color([255,0,0,0.65]), 2  
        ),  
        new Color([0,0,0,0.35])  
      );
  ArcGIS.mainMap.graphics.add(new Graphic(evt.geometry, symbol));
}

polyline折线

back.drawDistance = function() {
    tb = new Draw(ArcGIS.mainMap);
    tb.on("draw-end", addPolyline);
    ArcGIS.mainMap.disableMapNavigation();
    tb.activate("polyline");
}

function addPolyline(evt) {
    tb.deactivate();
    ArcGIS.mainMap.enableMapNavigation();
    var lineSymbol = new CartographicLineSymbol(
            CartographicLineSymbol.STYLE_SOLID, new Color([ 255, 0, 0 ]),
            3, CartographicLineSymbol.CAP_ROUND,
            CartographicLineSymbol.JOIN_MITER, 2);
    ArcGIS.mainMap.graphics.add(new Graphic(evt.geometry, lineSymbol));
}

point点

back.drawPoint = function(url) {
    var events = ArcGIS.mainMap.on("click", function(e) {
        var pt = new esri.geometry.Point(e.mapPoint.x, e.mapPoint.y,
                ArcGIS.mainMap.spatialReference);
        var pictureMarkerSymbol = new PictureMarkerSymbol(url, 31, 31);
        var attr = {
            "name" : "1",
            "remark" : "1"
        };
        graphic = new esri.Graphic(pt, pictureMarkerSymbol, attr, null);
        ArcGIS.mainMap.graphics.add(graphic);
        events.remove();
    });
}