public static IEnumerable <Point> GetGroupPoints(this GeometryGroup geometryGroup)
{
if (geometryGroup != null)
{
foreach (Geometry geometry in geometryGroup.Children)
{
foreach (Point point in GeometryExtensions.GetPoints(geometry))
{
yield return(point);
}
}
}
}
public void UpdatePoints()
{
IEnumerable <Point> points = GeometryExtensions.GetPoints(this.Outline);
this.Points.BeginInit();
try
{
this.Points.Clear();
foreach (Point point in points)
{
this.Points.Add(point);
}
}
finally
{
this.Points.EndInit();
}
}