/// <summary>
/// Calculates the distance from zero of a given angle.
/// </summary>
/// <param name="angle">angle to calculate</param>
/// <returns>an angle in the range (-180,180]</returns>
private int AngleDistanceFromZero(int angle)
{
angle = (int)FCCircularTrackbar.FitValueToCircle((int)angle);
if (angle > 180)
{
angle = -(360 - angle);
}
return(angle);
}
/// <summary>
/// Dispatches a move request from a PTZ Overlay Control to the camera control client
/// </summary>
private void PTZOverlayControl_MoveRequested(object sender, PTZMoveRequestEventArgs e)
{
if (client == null)
{
return;
}
try
{
Debug.WriteLine("Got Move Request: " + e.Pan + ", " + e.Tilt + ", " + e.Zoom);
if (e.IsAbsolute)
{
client.PanTiltAbsolute(e.Pan, e.Tilt);
if (e.Zoom != 0)
{
client.ZoomAbsolute(e.Zoom);
}
}
else
{
double newPan = FCCircularTrackbar.FitValueToCircle(ptzControl.PanAngle + e.Pan);
double newTilt = ptzControl.TiltAngle + e.Tilt;
if (newTilt > StreamViewerControl.SourceInfo.CameraControl.Capabilities.TiltMaxAngle)
{
newTilt = StreamViewerControl.SourceInfo.CameraControl.Capabilities.TiltMaxAngle;
}
else if (newTilt < StreamViewerControl.SourceInfo.CameraControl.Capabilities.TiltMinAngle)
{
newTilt = StreamViewerControl.SourceInfo.CameraControl.Capabilities.TiltMinAngle;
}
client.PanTiltAbsolute(newPan, newTilt);
if (e.Zoom != 0)
{
client.ZoomAbsolute(ptzControl.ZoomLevel + e.Zoom);
}
}
}
catch (Exception ex)
{
ErrorLogger.DumpToDebug(ex);
Stop();
}
}
/// <summary>
/// Calculates the shortest distance in degrees between two angles
/// </summary>
/// <param name="from">starting angle</param>
/// <param name="to">ending angle</param>
private void CalcPanAngleDelta(int from, int to)
{
PanAngleDelta = -1 * (FCCircularTrackbar.FitValueToCircle((from + 180.0 - to)) - 180);
}