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  multiple Y-axis ranges chart
Posted by cho on Aug-07-2020 18:20
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Hi Peter,

I want to implement a real-time chart by applying realtimetrack (MFC example).

The Y-axis range of the three items is as follows.

Alpha is 0 ~ 3000,
Beta is 0 ~ 2,
Gamma is -10 to +10.

If I set the Y-axis range based on Alpha, I cannot see the Beta and Gamma waveforms clearly.
If I set based on Beta or Gamma, Alpha's waveform go out of the chart area.

In this case, I would like to know how to implement a chart so that I can see all the waveforms clearly.

Please let me know your detailed solution with a example.

Thanks in advance.

Regards
Cho

  Re: multiple Y-axis ranges chart
Posted by Peter Kwan on Aug-08-2020 15:26
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Attachments:
Hi Cho,

There are two methods:

(a) Use mutliple y-axis, like:

https://www.advsofteng.com/doc/cdcpp.htm#multiaxes.htm

(b) Use a MultiChart like in the attached image.

Please let me know which style you prefer. I can create a simple Visual Studio example for you.

Regards
Peter Kwan
realtimetrack_20200808152504.png

  Re: multiple Y-axis ranges chart
Posted by cho on Aug-08-2020 21:28
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Hi Peter,

I am glad that you are willing to help.

This time I want to apply style (a).
But I have a desire to know both. If your circumstances allow...

Thank you again.

Regards
Cho

  Re: multiple Y-axis ranges chart
Posted by Peter Kwan on Aug-10-2020 21:14
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Attachments:
Hi Cho,

Attached please find two MFC examples - one is based on the multi-axes method (see attached image), and one is based on the MultiChart method.

Hope this can help.

Regards
Peter Kwan
realtimetrack_20200810203953.png
realtimetrack_multiaxes_mfc.zip
realtimetrack_multiaxes_mfc.zip
40.33 Kb
realtimetrack_multichart_mfc.zip
realtimetrack_multichart_mfc.zip
40.41 Kb

  Re: multiple Y-axis ranges chart
Posted by cho on Aug-11-2020 08:29
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Attachments:
Hi Peter,

First of all, thank you for your kind help.

Among the samples provided, "the multi-axes method (see attached image)" is different from the illustrated style (a) image. It's a single axis chart.

(But the second sample "the MultiChart method" is the same chart as style (b).)

Could you please re-attach "the multi-axes method (style (a))" sample if possible?

Always thank you.

Regards
Cho
image.png

  Re: multiple Y-axis ranges chart
Posted by Peter Kwan on Aug-11-2020 12:12
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Attachments:
Hi cho,

Sorry for the mistake. Attached please find the correct realtimetrack_multiaxes_mfc.zip.

Regards
Peter Kwan
realtimetrack_multiaxes_mfc.zip
realtimetrack_multiaxes_mfc.zip
39.95 Kb

  Re: multiple Y-axis ranges chart
Posted by cho on Aug-11-2020 12:27
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Hi Peter,

Thank you very much for your help.

Regards
Cho