/// <summary>
/// 删除图元
/// </summary>
/// <param name="element"></param>
/// <param name="layer"></param>
/// <returns></returns>
public bool RemoveElement(IMFElement element, ILayer layer)
{
if (element == null)
{
return(true);
}
IGraphicsContainer graphicsLayer = layer as IGraphicsContainer;
if (graphicsLayer == null)
{
return(true);
}
Point_ArcGlobe pointElement = element as Point_ArcGlobe;
if (pointElement.Rasterize)
{
pointElement.Rasterize = false;
}
this.Dosomething((Action) delegate()
{
graphicsLayer.DeleteElement(pointElement);
}, true);
return(true);
}
/// <summary>
/// 创建图元
/// </summary>
/// <param name="kml"></param>
/// <param name="layer"></param>
/// <returns></returns>
public IMFElement CreateElement(Kml kml, ILayer layer)
{
KmlPoint pointKml = kml.Placemark.Graph as KmlPoint;
if (pointKml.Position == null)
{
return(null);
}
int index = -1;
//图层
IGlobeGraphicsLayer graphicsLayer = layer as IGlobeGraphicsLayer;
//图元
Point_ArcGlobe pointElement = new Point_ArcGlobe(graphicsLayer, pointKml);
this.Dosomething((Action) delegate()
{
IGlobeGraphicsElementProperties properties = new GlobeGraphicsElementPropertiesClass();
properties.Rasterize = pointKml.Rasterize; //栅格化
graphicsLayer.AddElement(pointElement, properties, out index);
pointElement.Index = index; //指定索引
pointElement.ElementName = kml.Placemark.Name;
}, true);
return(pointElement);
}
