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When the value is positive or negative in the qwt cumulative chart, the graph is not displayed normally

  • I am using qwt-6.1.5 version, and I have set to input positive and negative values in populate() of the example file "barchart". If you display the graph afterwards, all values will not be displayed, and positive or negative values will not be displayed. I would like to know if qwt does not support displaying positive and negative values for the cumulative graph at the same time, is it a bug, or requires other settings.

    I want to display both positive and negative values at the same time as shown in the picture below.

  • @BJUN

    Hi and welcome to devnet forum

    qwt is an extension of Qt as third party library. It maintains its own mailing list. Please check out there. This might be a faster way to get feedback on the issue.