protected void GenerateCurve()
{
//Make sure we have all the info we need
if (Whisker == null || Whisker.WhiskerPoints == null)
{
return;
}
if (Whisker.WhiskerPoints.Length == 0)
{
return;
}
if (Whisker.Parent.OriginalWidth == 0 || Whisker.Parent.OriginalHeight == 0)
{
return;
}
//Calculate Control Points
IWhiskerPoint firstPoint = Whisker.WhiskerPoints[0].Clone();
ControlPoints = new IWhiskerPoint[Whisker.WhiskerPoints.Length];
ControlPoints[0] = firstPoint;
double videoWidth = Whisker.Parent.OriginalWidth;
double videoHeight = Whisker.Parent.OriginalHeight;
if (ControlPoints.Length == 2)
{
IWhiskerPoint lWhiskerPoint1 = Whisker.WhiskerPoints[1].Clone();
ControlPoints[1] = lWhiskerPoint1;
TargetPoint = GetTValuePointForLinear();
}
if (ControlPoints.Length == 3)
{
IWhiskerPoint qWhiskerPoint1 = Whisker.WhiskerPoints[1].Clone();
IWhiskerPoint qWhiskerPoint2 = Whisker.WhiskerPoints[2].Clone();
Point[] points = new Point[3];
points[0] = new Point(firstPoint.XRatio * videoWidth, firstPoint.YRatio * videoHeight);
points[1] = new Point(qWhiskerPoint1.XRatio * videoWidth, qWhiskerPoint1.YRatio * videoHeight);
points[2] = new Point(qWhiskerPoint2.XRatio * videoWidth, qWhiskerPoint2.YRatio * videoHeight);
Point point1;
DrawingUtility.GetControlPointsForQuadraticBezier(points, out point1);
qWhiskerPoint1.XRatio = point1.X / videoWidth;
qWhiskerPoint1.YRatio = point1.Y / videoHeight;
ControlPoints[1] = qWhiskerPoint1;
ControlPoints[2] = qWhiskerPoint2;
TargetPoint = GetTValuePointForQuadratic();
}
if (ControlPoints.Length == 4)
{
IWhiskerPoint cWhiskerPoint1 = Whisker.WhiskerPoints[1].Clone();
IWhiskerPoint cWhiskerPoint2 = Whisker.WhiskerPoints[2].Clone();
IWhiskerPoint cWhiskerPoint3 = Whisker.WhiskerPoints[3].Clone();
Point[] points = new Point[4];
points[0] = new Point(firstPoint.XRatio * videoWidth, firstPoint.YRatio * videoHeight);
points[1] = new Point(cWhiskerPoint1.XRatio * videoWidth, cWhiskerPoint1.YRatio * videoHeight);
points[2] = new Point(cWhiskerPoint2.XRatio * videoWidth, cWhiskerPoint2.YRatio * videoHeight);
points[3] = new Point(cWhiskerPoint3.XRatio * videoWidth, cWhiskerPoint3.YRatio * videoHeight);
Point point1, point2;
DrawingUtility.GetControlPointsForCubicBezier(points, out point1, out point2);
cWhiskerPoint1.XRatio = point1.X / videoWidth;
cWhiskerPoint1.YRatio = point1.Y / videoHeight;
cWhiskerPoint2.XRatio = point2.X / videoWidth;
cWhiskerPoint2.YRatio = point2.Y / videoHeight;
ControlPoints[1] = cWhiskerPoint1;
ControlPoints[2] = cWhiskerPoint2;
ControlPoints[3] = cWhiskerPoint3;
TargetPoint = GetTValuePointForCubic();
}
}