I have two splines that define cross sections of a body at different planes
(like the lines drawings of yacht or airplane). Each of the two splines
define a shape that are approximately elliptic (actually its a conic). The
two splines are approximately concentric (i.e. one is inside the other and
they don't overlap).
On the inner spline I have drawn a tangent to the spline at some arbitrary
The problem I am trying to solve is how to find the point at which a
second tangent intersects the outer spline when the second tangent is
parallel to the first on the inner spline.
Anyone got any ideas ??
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16 years ago