title: Problems setting up speed on PTZ absolute and relative modes
body: <p>I'm working with a ONVIF compliant network camera. So far I've been able to move the camera using the Continous move operation.The problem is that I can't set the speed parameter in the Absolute and Relative move operations. I've read the ONVIF's PTZ specs,but nothing works.<br>
  No matters what value I set, it always executes the default speed value.<br>
  The speed parameter is set throw the following code:</p>
  
  <p><code>_selectedDevice.PtzClient().AbsoluteMove(_selectedProfile,
                  new PTZVector
                  {...,
                  new PTZSpeed//());
                  {
                      PanTilt = new Vector2D
                      {
                          x = (float)_nuAbsoluteSpeed.Value,
                          y = (float)_nuAbsoluteSpeed.Value,
                      },
                      Zoom = new Vector1D
                      {
                          x = (float)_nuAbsoluteSpeed.Value,<br>
                      }
                  });</code><br>
  I also tried to set the space parameter parameter but the result is the same.<br>
  Any help?</p>