Rational Cubic Bézier Curves

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This Demonstration shows a rational cubic Bézier curve, with green marks at two-thirds the distance of the points and to the intersection of and . When you drag the points and to the green marks and set the parameter to 1, the resulting curve is equivalent to a normal () quadratic Bézier curve with points , , and , where is the red point of intersection. This is not the case if .

Contributed by: Alexis Luengas Zimmer (September 2012)
Based on a program by: Isabelle Cattiaux-Huillard and Gudrun Albrecht
Open content licensed under CC BY-NC-SA


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