Drawing curves

Making my way through the Drawing curves recipe from the Processing 2 Creative programming cookbook source code on GitHub. In this recipe I learned how to use the bezier and curve functions to draw Bezier curves and Catmull-rom splines in the display window. For the Bezier curves in this example, 0 and 20 are the coordinates for the first anchor point. 50 and 10 are the coordinates for the first control point. 80 and 100 are the coordinates for the second control point, and the 30 and 200 are the coordinates for the second anchor…

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