/// <summary>
/// Update the perspective view parameters and replot
/// </summary>
private void UpdatePointOfView()
{
_panel.DefaultView.SetDeg(_cameraView.phi, _cameraView.rho, _cameraView.distance);
hScrollBar_Phi.Value = (int)(_cameraView.phi * 100.0);
vScrollBar_Rho.Value = (int)(_cameraView.rho * 100.0);
numericUpDown_phi.Value = (decimal)_cameraView.phi;
numericUpDown_rho.Value = (decimal)_cameraView.rho;
numericUpDown_distance.Value = (decimal)_cameraView.distance;
_panel.ResetView();
_panel.Refresh();
}