/// <summary>
/// 移除图元
/// </summary>
/// <param name="layerName">图层名称</param>
/// <param name="element">图元</param>
/// <returns></returns>
public bool RemoveElement(string layerName, IMFElement element)
{
if (element == null)
{
return(true);
}
ILayer layer = layerMgr.GetLayer(layerName);
if (layer == null)
{
return(true);
}
IElementFactory elementFactory = null;
switch (element.ElementType)
{
case ElementTypeEnum.Point:
elementFactory = pointFac;
break;
case ElementTypeEnum.Picture:
elementFactory = pictureFac;
break;
case ElementTypeEnum.Line:
elementFactory = lineFac;
break;
case ElementTypeEnum.Polygon:
elementFactory = polygonFac;
break;
case ElementTypeEnum.Text:
elementFactory = textFac;
break;
case ElementTypeEnum.Circle:
elementFactory = circleFac;
break;
case ElementTypeEnum.Model3D:
elementFactory = model3dFac;
break;
}
if (elementFactory == null)
{
return(false);
}
bool ret = elementFactory.RemoveElement(element, layer);
element.Dispose();
return(ret);
}
/// <summary>
/// 移除图元
/// </summary>
/// <param name="layerName">图层名称</param>
/// <param name="element">图元</param>
/// <returns></returns>
public bool RemoveElement(string layerName, MapFrame.Core.Interface.IMFElement element)
{
if (element == null)
{
return(true);
}
var layer = lyMgr.GetLayer(layerName);
if (layer == null)
{
return(true);
}
IElementFactory elementFactory = null;
switch (element.ElementType)
{
case ElementTypeEnum.Point:
elementFactory = pointFac;
break;
case ElementTypeEnum.Line:
elementFactory = lineFac;
break;
case ElementTypeEnum.Polygon:
elementFactory = polygonFac;
break;
case ElementTypeEnum.Text:
elementFactory = textFac;
break;
case ElementTypeEnum.Circle:
elementFactory = circleFac;
break;
case ElementTypeEnum.Picture:
elementFactory = pointIcoFac;
break;
}
if (elementFactory == null)
{
return(false);
}
bool ret = elementFactory.RemoveElement(element, layer);
element.Dispose();
this.Refresh();
return(ret);
}