文件名称：iphone绘图iphone绘图
文件大小：894KB
文件格式：PDF
更新时间：2013-02-14 09:55:58
iphone绘图
Quartz 2D is an advanced, two-dimensional drawing engine available for iPhone application development and to all Mac OS X application environments outside of the kernel. Quartz 2D provides low-level, lightweight 2D rendering with unmatched output fidelity regardless of display or printing device. Quartz 2D is resolutionand device-independent; you don’t need to think about the final destination when you use the Quartz 2D application programming interface (API) for drawing. The Quartz 2D API is easy to use and provides access to powerful features such as transparency layers, path-based drawing, offscreen rendering, advanced color management, anti-aliased rendering, and PDF document creation, display, and parsing. The Quartz 2D API is