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  Multiple Trend Layer based on data...
Posted by Ramesh on Sep-06-2012 22:05
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Hi,
I have a chart with multiple range of data on both axis(y and y2).
When i try to plot trend line for the different range of data, its not plotting Y2 axis data. Is
there any way i can make it?
Below is the code snippet:

CurrTrendLayer = _chart.addTrendLayer2(pointTimestamps, currVar.Points.GetValues(),
Chart.CColor(TrendColors.GetNextColor()));

CurrTrendLayer.setLineWidth(3);

Also, attached the picture, in that, you can see blue colored lines are trend lines, for 2 sets
of data and the range is covered in Y-axis, there is one more variable with the data range is
on Y2 axis. There is no trend line for that variable.

Can anyone help me?

Thanks
Ramesh
Trend Chart.PNG

  Re: Multiple Trend Layer based on data...
Posted by Peter Kwan on Sep-06-2012 23:07
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Hi Ramesh,

Have you use Layer.setUseYAxis2 to inform ChartDirector that the data series should be using the secondary y-axis, like :

CurrTrendLayer.setUseYAxis2();

Without Layer.setUseYAxis2 , ChartDirector cannot know which data series is using which axis, and it will simply use the default (the primary axis) for all data series. So to use the secondary y-axis, the Layer.setUseYAxis2 or DataSet.setUseYAxis2 is needed.

Hope this can help.

Regards
Peter Kwan

  Re: Multiple Trend Layer based on data...
Posted by Ramesh on Sep-07-2012 13:10
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Hi Peter,

Thanks for your help!!! this one worked.
I was looking for something like this method.

Thanks
Ramesh