private void ComputeCompleted(object sender, AsyncCompletedEventArgs<Empty> e)
{
_calibrationForm.Close();
if(e.Error != null)
{
_calibrationResult = null;
}
else
{
_calibrationResult = _tracker.GetCalibration();
}
}
public static Image GetCalibrationImage(TobiiCalibration calibration)
{
// Create image to draw to
Bitmap bitmap = new Bitmap(250, 250, PixelFormat.Format32bppArgb);
Graphics graphicsDevice = Graphics.FromImage(bitmap);
graphicsDevice.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceCopy;
foreach(CalibrationPlotItem plotItem in calibration.Plot)
{
using(Pen pen = new Pen(Color.DarkGray))
{
// Draw calibration points
Rectangle r = GetCalibrationCircleBounds(new PointF(plotItem.TrueX, plotItem.TrueY), circleRadius);
graphicsDevice.DrawEllipse(pen,r);
// Draw bounds
pen.Color = Color.LightGray;
Rectangle canvasBounds = GetCanvasBounds();
graphicsDevice.DrawRectangle(pen,canvasBounds);
// Draw errors
if (plotItem.ValidityLeft == 1)
{
pen.Color = Color.Red;
Point p1 = PixelPointFromNormalizedPoint(new PointF(plotItem.TrueX, plotItem.TrueY));
Point p2 = PixelPointFromNormalizedPoint(new PointF(plotItem.MapLeftX, plotItem.MapLeftY));
graphicsDevice.DrawLine(pen, p1, p2);
}
if (plotItem.ValidityRight == 1)
{
pen.Color = Color.Lime;
Point p1 = PixelPointFromNormalizedPoint(new PointF(plotItem.TrueX, plotItem.TrueY));
Point p2 = PixelPointFromNormalizedPoint(new PointF(plotItem.MapRightX, plotItem.MapRightY));
graphicsDevice.DrawLine(pen, p1, p2);
}
}
}
return bitmap;
}
private void AbortCalibration()
{
_calibrationResult = null;
_sleepTimer.Stop();
_calibrationForm.Close();
}
private void StartNextOrFinish()
{
if (_calibrationForm.InvokeRequired)
{
_calibrationForm.Invoke(new Action(StartNextOrFinish));
return;
}
if(_calibrationPoints.Count > 0)
{
var point = _calibrationPoints.Dequeue();
_calibrationForm.DrawCalibrationPoint(point,Color.Yellow);
_sleepTimer.Start();
}
else
{
_sleepTimer.Stop();
// Use the async version of ComputeCalibration since
// this call takes some time
_calibrationForm.Close();
try
{
_tracker.ComputeCalibration();
_calibrationResult = _tracker.GetCalibration();
}
catch
{
_calibrationResult = null;
}
//!!_tracker.ComputeCalibrationAsync(ComputeCompleted);
}
}