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Fixed crash with 0 window width

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This commit is contained in:
Martin Tůma 2017-05-22 22:37:35 +02:00
parent dba6291f3e
commit d54f22d3f0
1 changed files with 9 additions and 7 deletions
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16
src/track.cpp
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@ -49,24 +49,26 @@ static QSet<int> eliminate(const QVector<qreal> &v, int window)
static Graph filter(const Graph &g, int window)
{
qreal acc = 0;
Graph ret;
if (g.size() < window)
return ret;
return Graph();
if (window < 2)
return Graph(g);
qreal acc = 0;
Graph ret(g.size());
for (int i = 0; i < window; i++)
acc += g.at(i).y();
for (int i = 0; i <= window/2; i++)
ret.append(GraphPoint(g.at(i).s(), g.at(i).t(), acc/window));
ret[i] = GraphPoint(g.at(i).s(), g.at(i).t(), acc/window);
for (int i = window/2 + 1; i < g.size() - window/2; i++) {
acc += g.at(i + window/2).y() - g.at(i - (window/2 + 1)).y();
ret.append(GraphPoint(g.at(i).s(), g.at(i).t(), acc/window));
ret[i] = GraphPoint(g.at(i).s(), g.at(i).t(), acc/window);
}
for (int i = g.size() - window/2; i < g.size(); i++)
ret.append(GraphPoint(g.at(i).s(), g.at(i).t(), acc/window));
ret[i] = GraphPoint(g.at(i).s(), g.at(i).t(), acc/window);
return ret;
}