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Robin's patch for the correct way to apply a low pass filter to peak data.

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This commit is contained in:
nick_m 2015-02-23 22:40:09 +11:00
parent f79238bebc
commit 621c905590
1 changed files with 6 additions and 2 deletions
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8
libs/canvas/wave_view.cc
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@ -585,10 +585,14 @@ WaveView::draw_image (Cairo::RefPtr<Cairo::ImageSurface>& image, PeakData* _peak
/* draw square waves and other discontiguous points clearly */
if (i > 0) {
if (tips[i-1].top + 2 < tips[i].top) {
wave_context->move_to (i, tips[i-1].top);
wave_context->move_to (i-1, tips[i-1].top);
wave_context->line_to (i-1, (tips[i].bot + tips[i-1].top)/2);
wave_context->move_to (i, (tips[i].bot + tips[i-1].top)/2);
wave_context->line_to (i, tips[i].top);
} else if (tips[i-1].bot > tips[i].bot + 2) {
wave_context->move_to (i, tips[i-1].bot);
wave_context->move_to (i-1, tips[i-1].bot);
wave_context->line_to (i-1, (tips[i].top + tips[i-1].bot)/2);
wave_context->move_to (i, (tips[i].top + tips[i-1].bot)/2);
wave_context->line_to (i, tips[i].bot);
}
}