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Merge pull request #34 from certik/log_zero2

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Skip drawing the line for negative values in log plots
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Jan W. Krieger 2019-11-29 07:27:50 +01:00 committed by GitHub
commit ee4262d14c
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 11 deletions
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26
lib/jkqtplotter/graphs/jkqtpscatter.cpp
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@ -94,7 +94,8 @@ void JKQTPXYLineGraph::draw(JKQTPEnhancedPainter& painter) {
//double yold=-1;
//bool first=false;
//QVector<QLineF> lines;
QPolygonF linesP;
std::vector<QPolygonF> vec_linesP;
vec_linesP.push_back(QPolygonF());
intSortData();
for (int iii=imin; iii<imax; iii++) {
int i=qBound(imin, getDataIndex(iii), imax);
@ -110,24 +111,27 @@ void JKQTPXYLineGraph::draw(JKQTPEnhancedPainter& painter) {
}
if ((!parent->getXAxis()->isLogAxis() || xv>0.0) && (!parent->getYAxis()->isLogAxis() || yv>0.0) ) {
plotStyledSymbol(parent, painter, x, y);
}
if (drawLine) {
linesP<<QPointF(x,y);
if (drawLine) {
vec_linesP[vec_linesP.size()-1] << QPointF(x,y);
}
} else {
vec_linesP.push_back(QPolygonF());
}
}
}
//qDebug()<<"JKQTPXYLineGraph::draw(): "<<4<<" lines="<<lines.size();
//qDebug()<<"JKQTPXYLineGraph::draw(): "<<5<<" p="<<painter.pen();
if (linesP.size()>0) {
if (isHighlighted()) {
painter.setPen(penSelection);
for (auto &linesP : vec_linesP) {
if (linesP.size()>0) {
if (isHighlighted()) {
painter.setPen(penSelection);
//painter.drawLines(lines);
painter.drawPolyline(linesP);
}
painter.setPen(p);
//painter.drawLines(lines);
painter.drawPolyline(linesP);
}
painter.setPen(p);
//painter.drawLines(lines);
painter.drawPolyline(linesP);
}
//qDebug()<<"JKQTPXYLineGraph::draw(): "<<6;
}