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Fix bugs with displaying of axis ticks

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This commit is contained in:
Jan Käberich 2020-11-29 18:33:25 +01:00
parent fe78ccdeeb
commit e1dfc48906
1 changed files with 66 additions and 52 deletions
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20
Software/PC_Application/Traces/tracexyplot.cpp
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@ -234,11 +234,18 @@ void TraceXYPlot::draw(QPainter &p)
font.setPixelSize(AxisLabelSize);
p.setFont(font);
p.drawText(QRect(0, w.height()-AxisLabelSize*1.5, w.width(), AxisLabelSize*1.5), Qt::AlignHCenter, labelX);
if(XAxis.ticks.size() >= 1) {
// draw X ticks
// this only works for evenly distributed ticks:
auto max = qMax(abs(XAxis.ticks.front()), abs(XAxis.ticks.back()));
auto minLabel = qMin(abs(XAxis.ticks.front()), abs(XAxis.ticks.back()));
auto step = abs(XAxis.ticks[0] - XAxis.ticks[1]);
double step;
if(XAxis.ticks.size() >= 2) {
step = abs(XAxis.ticks[0] - XAxis.ticks[1]);
} else {
// only one tick, set arbitrary number of digits
step = max / 1000;
}
if(minLabel > 0 && minLabel < step) {
step = minLabel;
}
@ -288,6 +295,7 @@ void TraceXYPlot::draw(QPainter &p)
p.drawLine(xCoord, 0, xCoord, plotAreaBottom);
}
}
}
for(int i=0;i<2;i++) {
if(YAxis[i].type == YAxisType::Disabled) {
@ -311,10 +319,16 @@ void TraceXYPlot::draw(QPainter &p)
p.drawText(QRect(0, 0, w.height()-xAxisSpace, AxisLabelSize*1.5), Qt::AlignHCenter, labelY);
p.restore();
// draw ticks
if(YAxis[0].type != YAxisType::Disabled) {
if(YAxis[i].type != YAxisType::Disabled && YAxis[i].ticks.size() > 0) {
// this only works for evenly distributed ticks:
auto max = qMax(abs(YAxis[i].ticks.front()), abs(YAxis[i].ticks.back()));
auto step = abs(YAxis[i].ticks[0] - YAxis[i].ticks[1]);
double step;
if(YAxis[i].ticks.size() >= 2) {
step = abs(YAxis[i].ticks[0] - YAxis[i].ticks[1]);
} else {
// only one tick, set arbitrary number of digits
step = max / 1000;
}
int significantDigits = floor(log10(max)) - floor(log10(step)) + 1;
for(auto t : YAxis[i].ticks) {
auto yCoord = Util::Scale<double>(t, YAxis[i].rangeMax, YAxis[i].rangeMin, 0, w.height() - xAxisSpace);