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Stacked Y Log Axes

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I’ve been trying to get stacked y axes work when each is in log space but the data seems to ignore the positioning of the axes in this case. When stacking linear axes the data associated with each axes just plots in the space for each axis.

I’m using a grid panel for y axis layout

Version
8.3
Images
  • Lex
    • Lex
    • 2 months ago
    Hi Malcolm, Thank you for reporting this. We are going to investigate the described issue on our side and will get back to you as soon as we have an update. With best regards, Lex S., MSEE, SciChart Technical Support Engineer
  • Malcolm Geddes
    I should have added that I was plotting fastcolumn series and that the same data when plotted on linear axes looks perfect
  • Malcolm Geddes
    It was the zeroliney property that was causing the issues, thanks
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Best Answer
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Hi Malcolm,

We discussed your inquiry and investigated the described use case on our side.

Please ensure your data does not contain values equal to or less than 0, as the logarithm function can’t work with such values correctly.
This also applies to the ZeroLineY property, which is used to limit the bottom of the Column and Mountain Series. It should also be set to the value > 0.
Please take a look:
SciChart WPF Documentation – ZeroLineY Property (BaseRenderableSeries) | WPF Chart Documentation

We have a Negative Logarithmic Axis implemented though, but it’s a workaround to work with the DataSeries containing only values less than 0.
Please take a look at our “Logarithmic Axis ” example for more info:
WPF Chart Logarithmic Axis Example – SciChart

With best regards,

Lex S., MSEE
SciChart Technical Support Engineer

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I should add that I’m using a fast column renderable series in there. I’ll post a pic without log using just the standard numeric axes

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