void _vis_Click(object sender, RoutedEventArgs e)
{
VisualizeFunction visalizer = new VisualizeFunction(this._function);
visalizer.ShowDialog();
visalizer = null;
}
void _vis_Click(object sender, RoutedEventArgs e)
{
VisualizeFunction visualizer = new VisualizeFunction(this._spatialDataField);
visualizer.Owner = (Window)((DockPanel)((Grid)this.Parent).Parent).Parent;
visualizer.ShowDialog();
visualizer = null;
}
