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  how to hidden legend box?
Posted by dennis.kim on Dec-14-2022 19:18
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Hi,

I am implementing multichart using sample code.
I simply want to make the legendbox invisible.

There doesn't seem to be a function like hidden in the lib function.
how can i handle legend box hidden?

<------------------------ code ------------------------------>
    MultiChart* m = new MultiChart(780, 3 * chartHeight + xAxisHeight);

    m->addChart(0, 0, drawXYChart(viewer, m_dataSeriesA, "EV_V", 0xff0000, 0, false));
    Axis* xAxisScale = ((XYChart*)m->getChart(0))->xAxis();

    m->addChart(0, 15 + chartHeight, drawXYChart(viewer, m_dataSeriesB, "Measure_V", 0x00cc00, xAxisScale, false));

    m->addChart(0, 15 + chartHeight * 2, drawXYChart(viewer, m_dataSeriesC, "Measure_C", 0x0000ff,
        xAxisScale,  true));
<----------------------------------------------------------->
aaa.jpg

  Re: how to hidden legend box?
Posted by dennis.kim on Dec-14-2022 19:42
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I found a way like below.

<-------------------- code ------------------------------->
m->addChart(0, 0, drawXYChart(viewer, m_dataSeriesA, "EV_V", 0xff0000, 0, false));
    Axis* xAxisScale = ((XYChart*)m->getChart(0))->xAxis();
    m->getChart(0)->getLegend()->setPos(1000,1000); // move legend out of window

    // All other charts synchronize their x-axes with that of the first chart.
    m->addChart(0, 15 + chartHeight, drawXYChart(viewer, m_dataSeriesB, "Measure_V", 0x00cc00,
        xAxisScale, false));
    m->getChart(1)->getLegend()->setPos(1000,1000); // move legend out of window


    // The last chart displays the x-axis.
    m->addChart(0, 15 + chartHeight * 2, drawXYChart(viewer, m_dataSeriesC, "Measure_C", 0x0000ff,
        xAxisScale,  true));
    m->getChart(2)->getLegend()->setPos(1000,1000); // move legend out of window
<--------------------------------------------------------->

Please let me know if there is another function other than this that is clearer.