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BarSeries: fails to plot negative values #2147

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#2152
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BarSeries: fails to plot negative values#2147
#2152
@swharden

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@swharden
swharden
opened on Oct 4, 2022

I think the bug is here (it always assumes values are positive):

ScottPlot/src/ScottPlot4/ScottPlot/Plottable/BarSeries.cs

Lines 49 to 71 in 4008bdf

private RectangleF GetPixelRect(PlotDimensions dims, Bar bar)
{
if (bar.IsVertical)
{
float left = dims.GetPixelX(bar.Position - bar.Thickness / 2);
float right = dims.GetPixelX(bar.Position + bar.Thickness / 2);
float bottom = dims.GetPixelY(bar.ValueBase);
float top = dims.GetPixelY(bar.Value);
float width = right - left;
float height = bottom - top;
return new RectangleF(left, top, width, height);
}
else
{
float left = dims.GetPixelX(bar.ValueBase);
float right = dims.GetPixelX(bar.Value);
float top = dims.GetPixelY(bar.Position + bar.Thickness / 2);
float bottom = dims.GetPixelY(bar.Position - bar.Thickness / 2);
float width = right - left;
float height = bottom - top;
return new RectangleF(left, top, width, height);
}
}

Spillover from #2145

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