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profile: pass [from,to] range to polygon plotting functions

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Only plot the zoomed range. Currently this passes the sample
before and after the range, so it generally "overshoots" by
one sample in each direction. The plan is to do clipping
on the first and last polygon segment later on.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2021-10-08 21:00:37 +02:00 • committed by Dirk Hohndel
parent c09382036f
commit 118700fd18
3 changed files with 97 additions and 56 deletions
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18
profile-widget/profilescene.cpp
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@ -395,6 +395,22 @@ void ProfileScene::plotDive(const struct dive *dIn, int dcIn, DivePlannerPointsM
timeAxis->setBounds(round(relStart * maxtime), round(relEnd * maxtime));
}
// Find first and last plotInfo entry
int firstSecond = lrint(timeAxis->minimum());
int lastSecond = lrint(timeAxis->maximum());
auto it1 = std::lower_bound(plotInfo.entry, plotInfo.entry + plotInfo.nr, firstSecond,
[](const plot_data &d, int s)
{ return d.sec < s; });
auto it2 = std::lower_bound(it1, plotInfo.entry + plotInfo.nr, lastSecond,
[](const plot_data &d, int s)
{ return d.sec < s; });
if (it1 > plotInfo.entry && it1->sec > firstSecond)
--it1;
if (it2 < plotInfo.entry + plotInfo.nr)
++it2;
int from = it1 - plotInfo.entry;
int to = it2 - plotInfo.entry;
timeAxis->updateTicks(animSpeed);
cylinderPressureAxis->setBounds(plotInfo.minpressure, plotInfo.maxpressure);
@ -446,7 +462,7 @@ void ProfileScene::plotDive(const struct dive *dIn, int dcIn, DivePlannerPointsM
// Replot dive items
for (AbstractProfilePolygonItem *item: profileItems)
item->replot(d, inPlanner);
item->replot(d, from, to, inPlanner);
if (prefs.percentagegraph)
percentageItem->replot(d, currentdc, dataModel->data());