| Name | Type | Description | 
|---|---|---|
| youScene | Object | YouScene 对象 | 
Example:
var drawControl = new DrawControl(youScene);
var polygon = new DrawPolygon3D();
drawControl.add(polygon)Methods
- 
    
    添加一个画图对象Name Type Description featureDrawFeature 画图子类对象 
- 
    
    清除所有画图对象
- 
    
    销毁画图组件
- 
    
    删除一个画图对象Name Type Description featureDrawFeature 画图子类对象 
