OpenScales 画线、画面、加点

1、画线

var t_layer:Layer=_baseWidgets.map.getLayerByIdentifier("道路定位");
var m_roadlayer:VectorLayer;
if(t_layer==null)
{
  m_roadlayer=new VectorLayer("道路定位");
  _baseWidgets.map.addLayer(m_roadlayer);
}
m_roadlayer.visible=true;
var array:Vector.<Number> = new Vector.<Number>();
//lon为经度坐标，lat为纬度坐标
array.push(Number(lon),Number(lat));
var r_layer:VectorLayer=_baseWidgets.map.getLayerByIdentifier("道路定位") as VectorLayer;
r_layer.reset();
var road:LineStringFeature = new LineStringFeature(new LineString(array),null,Style.getDefaultLineStyle());
r_layer.addFeature(road);
//定位
_baseWidgets.map.center = road.lonlat;

2、画多边形面

var t_layer:Layer=_baseWidgets.map.getLayerByIdentifier("图幅定位");

var m_mappablelayer:VectorLayer;

 if(t_layer==null)
{
m_mappablelayer=new VectorLayer("图幅定位");
_baseWidgets.map.addLayer(m_mappablelayer);
}
var r_layer:VectorLayer=_baseWidgets.map.getLayerByIdentifier("图幅定位") as VectorLayer;
r_layer.reset();
var pablepoints:Vector.<Number> = new Vector.<Number>();
var arrString:Array =gStr.split(",");
//arr是我的数据数组经度,纬度
for(var i:int=0;i<arr.length;i++)
{
var arrPoint:Array = arr[i].split(" ");
if(i<1)
{ 
pablepoints.push(arrPoint[0]);
pablepoints.push(arrPoint[1]);
}else{
pablepoints.push(arrPoint[1]);
pablepoints.push(arrPoint[2]);
}}
var style:Style=new Style();
style.rules[0]=new Rule();
style.rules[0].symbolizers.push(new PolygonSymbolizer(new SolidFill(0x99D0F2,0.5), null));
var pableLinearRing:Vector.<Geometry> = new Vector.<Geometry>();
pableLinearRing.push(new LinearRing(pablepoints));
var mappable:PolygonFeature = new PolygonFeature(new Polygon(pableLinearRing),null,style);
r_layer.addFeature(mappable);
r_layer.redraw();
_baseWidgets.map.center = mappable.lonlat;

3、画点

[Bindable]
[Embed(source='assets/images/location/Map-Marker-Marker-Outside-Azure.png')]
private var _image:Class;

//图标样式
var style:Style = new Style();
style.name = "地名图标";	
var rule:Rule = new Rule();
var symbolizer:PointSymbolizer = new PointSymbolizer(new DisplayObjectMarker(_image, -15, -30,30));
var markerstyle:org.openscales.core.style.marker.Marker = symbolizer.graphic;
rule.symbolizers.push(symbolizer);
style.rules.push(rule);
				
//创建图层
var t_layer:Layer=_baseWidgets.map.getLayerByIdentifier("地名定位");

var m_placeslayer:VectorLayer;
 if(t_layer==null)
{
m_placeslayer=new VectorLayer("地名定位");
_baseWidgets.map.addLayer(m_placeslayer);
}
var p_layer:VectorLayer=_baseWidgets.map.getLayerByIdentifier("地名定位") as VectorLayer;
p_layer.reset();
m_placeslayer.visible=true;
//添加点
var t_f:PointFeature=PointFeature.createPointFeature(new Location(obj.labelx ,obj.labely),null,style);
p_layer.addFeature(t_f);