RetrieveVertexFromDrawingVisual
(
DrawingVisual oDrawingVisual
)
{
Debug.Assert(oDrawingVisual != null);
AssertValid();
Object oVertexAsObject =
oDrawingVisual.GetValue(FrameworkElement.TagProperty);
Debug.Assert(oVertexAsObject is IVertex);
return((IVertex)oVertexAsObject);
}
/// <summary>
/// 清空舞台
/// </summary>
public void ClearStage()
{
// 几何对象
AShape shape = null;
// 图形对象
DrawingVisual brush = null;
for (int i = this.panel.AmountVisual() - 1; i > -1; i--)
{
if (!MatchUtils.IsEmpty(brush = this.panel.ObtainVisual(i) as DrawingVisual) && !MatchUtils.IsEmpty(shape = brush.GetValue(MagicGraphic.Nexus) as AShape))
{
shape.Earse();
{
shape = null;
brush = null;
}
}
}
}
