How to animate bars of barchart-coreplot

I am new to iphone development and coreplot. I want to draw a barchart according to some data, that i have done. now i want to give some animations to the bars of plot. That means bars in the graph should lengten or shorten in a growing or shrinking efect.

Can anybody开发者_开发技巧 help me?

Thanks in advance.

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Kindly refer the following post: How to access CALayer of individual bar in core-plot?

It talks about precisely the same thing you are trying to do.

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I dont know what class you might be using, but most probably it is a subclass of CA Layer. Check this code out:

CABasicAnimation *rotation = [CABasicAnimation animationWithKeyPath:@"transform"];
CATransform3D transform = CATransform3DMakeRotation(DegreesToRadians(360), 0, 0, 1);
rotation.toValue = [NSValue valueWithCATransform3D:transform];  
rotation.duration = 10.0f;
[pieChart addAnimation:rotation forKey:@"rotation"];

How to animate the pie charts developed using core-plot library?