/// <summary>
/// 创建线图元
/// </summary>
/// <param name="kml">线的kml</param>
/// <param name="layer">图层</param>
/// <returns></returns>
public Core.Interface.IMFElement CreateElement(Core.Model.Kml kml, ILayer layer)
{
KmlLineString line = kml.Placemark.Graph as KmlLineString;
if (line == null)
{
return(null);
}
if (line.PositionList == null || line.PositionList.Count < 1)
{
return(null);
}
CompositeGraphicsLayerClass graphicLayer = layer as CompositeGraphicsLayerClass;
if (graphicLayer == null)
{
return(null);
}
Line_ArcMap lineElement = new Line_ArcMap(mapControl, line, mapFactory);
lineElement.Opacity = 50;
lineElement.ElementType = ElementTypeEnum.Line;
graphicLayer.AddElement(lineElement, 0);
return(lineElement);
}
/// <summary>
/// 删除图元
/// </summary>
/// <param name="element">要移除的线图元</param>
/// <param name="layer">图元所在的图层</param>
/// <returns></returns>
public bool RemoveElement(Core.Interface.IMFElement element, ILayer layer)
{
CompositeGraphicsLayerClass graphicLayer = layer as CompositeGraphicsLayerClass;
if (graphicLayer == null)
{
return(false);
}
Line_ArcMap line = element as Line_ArcMap;
if (line == null)
{
return(false);
}
graphicLayer.DeleteElement(line);//删除线图元
return(true);
}
