//-------------------------------------------------------------------------------------------
//Определение ориентации траектории
private TrajectoryOrientation DetectTrajectoryOrientation(
EllipseOrientaion primaryEllipseOrientation, //Первоначальная ориентация
double rotationAngle //Угол поворота первоначальной траектории
)
{
TrajectoryOrientation trajectoryOrientation = TrajectoryOrientation.Undefined;
if (primaryEllipseOrientation == EllipseOrientaion.NorthEast)
{
if (0 < rotationAngle)
{
trajectoryOrientation = TrajectoryOrientation.AxisX;
}
else
{
trajectoryOrientation = TrajectoryOrientation.AxisY;
}
}
if (primaryEllipseOrientation == EllipseOrientaion.NorthWest)
{
if (0 < rotationAngle)
{
trajectoryOrientation = TrajectoryOrientation.AxisY;
}
else
{
trajectoryOrientation = TrajectoryOrientation.AxisX;
}
}
return(trajectoryOrientation);
}
//---------------------------------------------------------------------------------------------
//Трансформация траектоории (центрирование, поворот, растяжение)
private Curve2D TransformateTrajectory(
Curve2D trajectory,
EllipseDescriptor approximateEllipse
)
{
//Центрирование
Curve2D transformedTrajectory = this.CentreTrajectory(trajectory, approximateEllipse);
//Поворот параллельно координатной оси
double rotationAngleToAxis = approximateEllipse.GetAngleBetweenOxAndPrincipalAxis();
transformedTrajectory =
this.RotateTrajectory(transformedTrajectory, rotationAngleToAxis);
//Растяжение
EllipseOrientaion primaryOrientation = approximateEllipse.GetOrientaion();
TrajectoryOrientation trajectoryOrientation =
this.DetectTrajectoryOrientation(primaryOrientation, rotationAngleToAxis);
double koefficientOfStretch = 1 / approximateEllipse.GetCompressionRatio();
transformedTrajectory = this.StretchingTrajectory
(transformedTrajectory, trajectoryOrientation, koefficientOfStretch);
//Поворот траектории до пересечения первой точки с осью OX
Point2D firstPointTrajectory = transformedTrajectory[0];
double rotationAngle = Mathem.Arctg(firstPointTrajectory.Y, firstPointTrajectory.X);
transformedTrajectory =
this.RotateTrajectory(transformedTrajectory, rotationAngle);
return(transformedTrajectory);
}
//-------------------------------------------------------------------------------------------
//Растяжение траектории до окружности
private Curve2D StretchingTrajectory(
Curve2D trajectory,
TrajectoryOrientation trajectoryOrientation,
double koefficientOfStretch
)
{
Curve2D transformedTrajectory = null;
if (trajectoryOrientation == TrajectoryOrientation.AxisX)
{
transformedTrajectory =
trajectory.GetStretchCurveAlongAxisY(koefficientOfStretch);
}
if (trajectoryOrientation == TrajectoryOrientation.AxisY)
{
transformedTrajectory =
trajectory.GetStretchCurveAlongAxisX(koefficientOfStretch);
}
return(transformedTrajectory);
}
