Steema Central

What options should I use to get the best possible image quality, I know this is somewhat dependant on screen resolution etc. but I do feel that the edges of the pie chart could be a little better. The following image is a png image of a donut chart that illustrates the rough edge of circles.



the Image quality setting on the 3D tab of the editor is set to best quality, setting it to best speed produces much the same effect but with thiner lines. The same effect is also present when exporting to files and printing etc.

Also note the colour bleeding out of the boxes in the legend.

Are there other options I can use to improve the quality?

Hi.

The "problem" is when in 3d the internal algorithm uses polyline to construct pie segments. No matter what you do with image resolution, the end result will still be each pie will be represented as collection of straight lines. Ideally the best solution would be to replace the internal polyline algorithm with Bezier curves (already on our wish list).
In existing version the only workaround I can think is switch to 2d and set pie series Circled property to true. In this case internal algorithm will use Bezier curves to construct pie segment.