pie chart ignores "margins" when drawing

[GoogleCodeExporter]

the margin: [top, right, bottom, left] propery is ignored by the pie chart even 
if it is a "common" property.

Original issue reported on code.google.com by stefano....@gmail.com on 22 Jan 2014 at 5:00

[GoogleCodeExporter]

I also fixed another issue related to pie positioning that somewhere was using 
cx instead of cy for vertical positioning.

Original comment by stefano....@gmail.com on 23 Jan 2014 at 5:14

• Changed state: Fixed