问题
Is there some sample code or a tutorial out there about how to draw a line chart using the Core Plot framework? I can't find anything using Google.
回答1:
If you have downloaded the framework, go to the examples directory within your checked-out version. There are several examples there, including CPTestApp-iPhone (which demonstrates line, bar, and pie charts), CPTestApp-iPad (same, but for the iPad), StockPlot (which downloads stock charts and plots the line graphs for them), and AAPLot (which grabs Apple's stock price and plots it using an open-high-low-close chart).
These examples are updated as the API changes, so they can be considered reliable sources to work from.
回答2:
I've created a Core Plot "Hello World" with an x^2 graph here: http://recycled-parts.blogspot.com/2011/08/coreplot-hello-world.html
Hope this helps!
来源：https://stackoverflow.com/questions/2934357/are-there-any-examples-for-how-to-draw-a-line-chart-in-core-plot-on-the-iphone