This seems like an image that could easily be created with the Pen Tool in Photoshop. Which, if I understand correctly, is a sequence of Bezier curves[1]. [1]

This seems like an image that could easily be created with the Pen Tool in Photoshop. Which, if I understand correctly, is a sequence of Bezier curves[1]. [1] http://en.wikipedia.org/wiki/B%C3%A9zier_curve http://en.wikipedia.org/wiki/B%C3%A9zier_curve