private void geoset_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
M2Geoset g = sender as M2Geoset;
if (e.PropertyName == "Visible")
{
M2SceneNode node = ModelSceneService.Instance.MainM2SceneNode;
if (node != null)
{
node.ShowGeoset(g.Index, g.Visible);
}
}
}