//点var pointSymbol = new SimpleMarkerSymbol();pointSymbol.style = SimpleMarkerSymbol.STYLE_CIRCLE;pointSymbol.setSize(10);pointSymbol.setColor(new Color([255, 255, 0, 1]));//线var line = new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID, new Color([196, 8, 9]), 2);//面var simpleLineSymbol = new SimpleLineSymbol(SimpleLineSymbol.STYLE_DASHDOT, new Color([255, 0, 0]), 2);var colorArea = new Color([_.random(0, 255), _.random(0, 255), _.random(0, 255), 0.25]);var sfs = new SimpleFillSymbol(SimpleFillSymbol.STYLE_SOLID,simpleLineSymbol, colorArea);