O = (-0.38049133197495705, 0.1116698312277831)
A = (0.9819959178812602, 0.11917664803139862)
u = Vector(O, A)
B = (0.17125970309078378, 0.8210640191694499)
v = Vector(O, B)
a = Line(O, A)
b = OrthogonalLine(B, a)
B' = Intersect(b, a)
w = Vector(O, B')
c = Segment(B, B')