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  Inquiry About Legend Sorting in Pie Chart
Posted by Ji-hyeon Choi on Mar-11-2025 12:44
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Hello,

I would like the pie chart's legend to be sorted as shown in the attached image on the right. Is there a way to achieve this?

We look forward to your response.
Best regards.
파이차트_현상.png

  Re: Inquiry About Legend Sorting in Pie Chart
Posted by Peter Kwan on Mar-11-2025 15:57
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Hi Ji-hyeon,

The legend in the right pie chart starts from the red sector, and then flows anti-clockwise.

You can use PieChart.setStartAngle to configure ChartDirector to flow the sectors in the same way. See:

https://www.advsofteng.com/doc/cdjava.htm#anglepie.htm

For your case, please add the line:

// First sector (red) start at 90 degrees, and other sectors flow anti-clockwise
c.setStartAngle(90, false);

// Add border to the sectors. The border color is semi-transparent white (0x7fffffff)
c.setLineColor(0x7fffffff);

Best Regards
Peter Kwan

  Re: Inquiry About Legend Sorting in Pie Chart
Posted by Ji-hyeon Choi on Mar-11-2025 16:03
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I'm sorry for the misunderstanding. What I meant was about the text in the legend.
Is it possible to align the values and text in the legend as shown on the right side of the image?

  Re: Inquiry About Legend Sorting in Pie Chart
Posted by Peter Kwan on Mar-11-2025 17:57
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Hi Ji-hyeon,

You can use CDML formatting. See:

https://www.advsofteng.com/doc/cdjava.htm#legendpie2.htm

For your case, I thinking something like the followings may work:

b.setText("<*block,valign=top*><*block,width=150*>{label}<*/*>" +
     "<*block,width=60,halign=right*>{percent}%<*/*><*/*>");

The CDML syntax is explained below:

https://www.advsofteng.com/doc/cdjava.htm#cdml.htm

The available parameters that you can use (like {label}, {percent}, etc) are listed in the "Pie Chart" section in:

https://www.advsofteng.com/doc/cdjava.htm#paramsub.htm

Hope this can help.

Regards
Peter Kwan