private void LoadModel()
{
lock (this)
{
if (this.visualizationObject?.Source != null && this.root.Content == null)
{
HelixToolkit.Wpf.StLReader reader = new HelixToolkit.Wpf.StLReader();
var model = reader.Read(this.visualizationObject.Source);
model.Freeze();
this.root.Content = model;
}
}
}
