I have a 12 mm spline between two points that are 10 mm apart. At one point the spline is tangent to a vertical line. The other point is tangent to a line that i would like to vary +-45 degrees. What I am wanting is SW to choose the path of the spline that has the highest curvature at all points. I am trying to simulate a piece of spring steel between the two points creating an over center latch. Any ideas?