QuartzCore 绘图介绍,

pattern  合并图片

http://donbe.blog.163.com/blog/static/138048021201061781655949/

shadow 阴影

http://donbe.blog.163.com/blog/static/13804802120106179746722/

渐变 Gradients

http://donbe.blog.163.com/blog/static/138048021201062042426239/

Transparency Layers 给我们很方便的画阴影 

http://donbe.blog.163.com/blog/static/13804802120106204528100/

用 Quartz 画聊天对话框背景实例

http://donbe.blog.163.com/blog/static/13804802120106302487518/

mask 和 layer绘图相关 笔记

http://donbe.blog.163.com/blog/static/13804802120107239483208/

Transforms CTM, 转换矩阵

http://donbe.blog.163.com/blog/static/138048021201061054243442/

关于iphone开发2d游戏的总结(图形)  http://dongxiaohai90.blog.163.com/blog/static/176900144201122232529837/

http://lockriver.blog.163.com/blog/static/48723224201141045739670/

http://lockriver.blog.163.com/blog/static/4872322420114105614717/  手触绘图

http://blog.csdn.net/nullcn/article/details/6369570      How to Make Custom Drawn Gradient Backgrounds in a Grouped UITableView with Core Graphics

Gradient 并且存为image

http://blog.csdn.net/NULLCN/article/details/6370176