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plot: Fix inverted y-axis

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Mike Walters
2016-02-28 17:02:38 +00:00
parent d1a580f0b9
commit 1c6029f60e
1 changed files with 1 additions and 1 deletions
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plotview.cpp
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@@ -140,7 +140,7 @@ void PlotView::plot(QPainter *painter, QRect &rect, float *samples, off_t count,
for (off_t i = 0; i < count; i++) {
float sample = samples[i*step];
int x = (float)i / count * rect.width();
int y = (sample * rect.height()/2) + rect.height()/2;
int y = rect.height() - ((sample * rect.height()/2) + rect.height()/2);
if (x < 0) x = 0;
if (y < 0) y = 0;