How to scale on x-axis with Core Plot

I have a barchart display the smoking counter, day by day. Each column represents one day. I would like to view the data on week, month, year, on the same graph by drag on the X-Axis. If I drag the x-axis to the right, the value on the x-axis come from month to day (smaller value scale). If I drag the x-axis to the left, the value on the x- axis come from day to month (bigger value scale).

I would like to ask: Can I make that functionality?

I am new with Core-Plot. So would you please show me how I can do that, which method, class, delegate I should implement to make that functionality.

Any help will be great appreciated.

开发者_C百科

Thank you.

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This question is pretty old, but quite interesting. I see two ways of dealing with it:

1. Using swipe gestures
   • Detect swipe gestures on the graph view;
   • When one is detected, start a fade out animation to hide the graph;
   • Update it (axis, plot space, reloadData, etc.) to display data in the unit that corresponds to the direction of the swipe gestures;
   • Fade in.
2. Using a UIScrollView
   • Create a UIScrollView with 3 pages (one fore each unit);
   • Display a different graph on each of these pages;
   • Implement navigation between the pages (eventually using a UIPageControl).