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Posts: 235 | Thanked: 1,081 times | Joined on Dec 2014 @ Earth
So weird "off by 1" in the display code ?

(e.g.: trying to link one more point on the spline than there are data points, and thus having something with weird coordinates)

(that could typically happen in bicubic smoothing routine : to draw a spline between "point(0)" and "point(1)", you also need "point(-1)" and "point(2)" for the bicubic computations. Those might not even exist in the data array).

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