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  Multicolored line graph.
Posted by Brian on Aug-01-2018 00:25
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Hi,

Does anyone know if it possible to to have a single line graph where the line changes color depending on the value ranges that have been set in code?

Thanks

Brian.

  Re: Multicolored line graph.
Posted by Brian on Aug-01-2018 20:49
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Attachments:
Hi,

I may not have explained myself very well, I have attached an image of the time of chart I'm trying to achieve. Any advice would be greatly appreciated,

Thanks

Brian.
Chartdesign.png

  Re: Multicolored line graph.
Posted by Brian on Aug-02-2018 00:57
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Hi Peter,

I believe i have found a solution that's to a previous post on the forum.

I have pasted my code below for others who may need it/ for you to review if there is a better way to do this.


redLayer = c.addLineLayer2();

                    double[] data0Y = y0Values.ToArray();

                    int green = 0x00ff08;
                    int yellow = 0xfcfc00;
                    int red = 0xff0000;



                    int myLineColor = c.yZoneColor(8, green, c.yZoneColor(10, yellow, red));
                    redLayer.addDataSet(data0Y, myLineColor).setDataSymbol(Chart.GlassSphere2Shape, 11);
                    redLayer.setXData(data0X);
                    redLayer.setLineWidth(3);

  Re: Multicolored line graph.
Posted by Peter Kwan on Aug-02-2018 02:44
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Hi Brian,

Your method (nested y-zone colors) is exactly the one I would suggest.

In your code, the symbol would also change color. If you would like the symbol to have a single color, you can set the symbol color like:

redLayer.addDataSet(data0Y, myLineColor).setDataSymbol(Chart.GlassSphere2Shape, 11, 0x888888, 0x888888);

Regards
Peter Kwan