OCAD is made especially for cartography, and one works with it using simple graphic tools instead of complicated instructions. In its new ... Some of them are available in demo version, with some restriction, for example some functions are disabled or have time limitation (OCAD, Paint Shop Pro, Map Maker). ... The segment of the Beziera#39;s curve is defined by the initial point (x0, y0) and final point (x3, y3).