spline curve in Java

I need to use a cubic B-spline curve but cannot find code for it anywhere. The only curves available in Java API are QuadCurve2D , Path2D and CubicCurve2D . I think they all are Bezier, but I'm not sure about it.

If you know where can I find code for cubic B-spline preferably that extends Java Shape class and supports contains(Point p) for onMouseOver please help.

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Apache has a class to represent spline curves:

http://jmeter.apache.org/api/org/apache/jmeter/visualizers/Spline3.html

However, it doesn't extend Shape or support what you want. The class works by interpolating the curve between nodes with a cubic curve. For contains(Point P) You might be able to use the getPlots() method, compare its results to the x and y values of P.

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CubicCurve2D is a cubic B-spline.

However, this may or may not be what you need as there are other cubic B-splines.

That is, all CubicCurve2Ds are cubic B-splines. Not all cubic B-splines are CubicCurve2Ds.

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