In this series of articles I am discussing the creation of charts and graphs using nothing more than Quartz 2D, a graphics rendering API created by Apple, which is a part of Core Graphics. You might wish to get up to speed with Part 1 , Part 2 and Part 3 . Our graphs look great, but there are a couple of things missing. First, it is common to have labels that show the scale of values, to number the data points, to provide some comments and so on.
BuildMobile: Creating a Graph With Quartz 2D: Part 4