private string GetExtraDataText(long currentTimestamp)
{
if (trackExtraData == TrackExtraData.None)
{
return("");
}
string displayText = "###";
switch (trackExtraData)
{
case TrackExtraData.Name:
displayText = name;
break;
case TrackExtraData.TotalDistance:
PointF o = CalibrationHelper.GetOrigin();
displayText = CalibrationHelper.GetLengthText(o, points["0"], true, true);
break;
case TrackExtraData.Position:
default:
displayText = CalibrationHelper.GetPointText(points["0"], true, true, currentTimestamp);
break;
}
return(displayText);
}
private static CoordinateSystemGrid FindForLineCalibration(CalibrationHelper calibrationHelper)
{
CoordinateSystemGrid grid = new CoordinateSystemGrid();
RectangleF imageBounds = new RectangleF(PointF.Empty, calibrationHelper.ImageSize);
// The clip window is an inflated version of the image to account for distortion.
RectangleF clipWindow = imageBounds.CenteredScale(1.3f);
// Create a fake plane to act as the user-defined projected plane.
QuadrilateralF quadImage = new QuadrilateralF(imageBounds.Deflate(2.0f));
PointF a = calibrationHelper.GetPointFromRectified(quadImage.A);
PointF b = calibrationHelper.GetPointFromRectified(quadImage.B);
PointF d = calibrationHelper.GetPointFromRectified(quadImage.D);
RectangleF plane = new RectangleF(0, 0, b.X - a.X, a.Y - d.Y);
// Define the extended plane (for vanishing point replacement and drawing stop condition) as the reprojection of the whole image.
QuadrilateralF extendedPlane = ReprojectImageBounds(calibrationHelper, new QuadrilateralF(imageBounds));
CalibrationPlane calibrator = new CalibrationPlane();
calibrator.Initialize(plane.Size, quadImage);
PointF originImage = calibrationHelper.GetOrigin();
PointF originRectified = originImage;
if (calibrationHelper.DistortionHelper != null && calibrationHelper.DistortionHelper.Initialized)
{
originRectified = calibrationHelper.DistortionHelper.Undistort(originImage);
}
calibrator.SetOrigin(originRectified);
// From this point on we are mostly in the same situation as for plane calibration.
// stepping size is the same in both directions.
int targetSteps = 15;
float width = extendedPlane.B.X - extendedPlane.A.X;
float step = RangeHelper.FindUsableStepSize(width, targetSteps);
CreateVerticalGridLines(grid, 0, -step, calibrator, clipWindow, plane, extendedPlane, true, false, PointF.Empty);
CreateVerticalGridLines(grid, step, step, calibrator, clipWindow, plane, extendedPlane, true, false, PointF.Empty);
CreateHorizontalGridLines(grid, 0, -step, calibrator, clipWindow, plane, extendedPlane, true, false, PointF.Empty);
CreateHorizontalGridLines(grid, step, step, calibrator, clipWindow, plane, extendedPlane, true, false, PointF.Empty);
return(grid);
}
