NVIDIA Corporation
Polar stroking for vector graphics

Abstract:

The disclosure introduces polar stroking for representing paths. A system, method, and apparatus are disclosed for representing and rendering stroked paths employing polar stroking. In one example, a method of approximating a link of a path is provided that includes: (1) determining tangent angle changes of a link of a path, (2) evaluating the link in steps based on the tangent angle changes, and (3) providing a polar stroked representation of the link employing the steps, wherein the evaluating is performed non-recursively. A polar stroking system is also disclosed. In one example, the polar stroking system includes: (1) a path processor configured to decompose a path into links, and (2) a polar stroking processor configured to determine polar stroking intermediates of the links from a characterization of the links and generate, employing the polar stroking intermediates, a polar stroked representation for each of the links.