Bull's Eye plotting/chart

How to do a bull's eye plot/chart?
Are there any good examples/link?

I think that Qwt could do that, Qt Widgets for Technical applications. You find the project here http://qwt.sourceforge.net/ .

do i need Qwt to draw bull's eye chart and bar charts?

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Originally Posted by babygal

do i need Qwt to draw bull's eye chart and bar charts?

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No; you can draw them yourself on any widget that has a paint() method.

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Originally Posted by SixDegrees

No; you can draw them yourself on any widget that has a paint() method.

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any sample codes?please.

There are numerous examples of custom widgets in Qt distribution (i.e. the analogclock example).