::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Compute the location (x, y) of the control point.
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Compute the location (x, y) of the control point. It is positioned orthogonally to the mid point of the line connecting p1 and p2 at a distance dist, where dist = bend * || p2 - p1 ||. A bend of 0. gives a straight line, while 2./-2. gives a huge bend up-right/down-left.
the starting point
the ending point
the bend or curvature
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Compute the distance or the length of the line connecting points p1 and p2.
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Compute the distance or the length of the line connecting points p1 and p2.
the starting point
the ending point
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Compute the slope of the line defined by points p1 and p2.
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Compute the slope of the line defined by points p1 and p2. Note: if deltaX is 0, the method returns infinity.
the starting point
the ending point
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: This object provides formulas used by the QCurve class.