Re: Circle Curve-Fitting# EE - 电子工程
s*g
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Pick any two points on a circle, and you get a secant line.
Draw a straight line perpendicular to this secant line, and
it goes through the center of the circle. Now pick two other
points and repeat the above two steps. Where the two perpendicular
lines cross is the center of the circle. From that you'll know
the radius, etc etc.
Another way is to assume a center (x,y,z) and pick 5 or 6 points
on the curve, hence you get 5 or 6 radii. And your goal, for curve
fitting, is to minimize the differe