diff options
Diffstat (limited to 'gr-qtgui/src/lib/TimeDomainDisplayPlot.cc')
| -rw-r--r-- | gr-qtgui/src/lib/TimeDomainDisplayPlot.cc | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/gr-qtgui/src/lib/TimeDomainDisplayPlot.cc b/gr-qtgui/src/lib/TimeDomainDisplayPlot.cc index e6f6581d2..c299f83a4 100644 --- a/gr-qtgui/src/lib/TimeDomainDisplayPlot.cc +++ b/gr-qtgui/src/lib/TimeDomainDisplayPlot.cc @@ -237,6 +237,15 @@ void TimeDomainDisplayPlot::_resetXAxisPoints() _xAxisPoints[loc] = loc*delt; } setAxisScale(QwtPlot::xBottom, 0, _numPoints*delt); + + // Set up zoomer base for maximum unzoom x-axis + // and reset to maximum unzoom level + QwtDoubleRect zbase = _zoomer->zoomBase(); + zbase.setLeft(0); + zbase.setRight(_numPoints*delt); + _zoomer->zoom(zbase); + _zoomer->setZoomBase(zbase); + _zoomer->zoom(0); } void TimeDomainDisplayPlot::LegendEntryChecked(QwtPlotItem* plotItem, bool on) @@ -248,16 +257,19 @@ void TimeDomainDisplayPlot::SetSampleRate(double sr, double units, const std::string &strunits) { - _sampleRate = sr/units; - _resetXAxisPoints(); - - // While we could change the displayed sigfigs based on the unit being - // displayed, I think it looks better by just setting it to 4 regardless. - //double display_units = ceil(log10(units)/2.0); - double display_units = 4; - setAxisTitle(QwtPlot::xBottom, QString("Time (%1)").arg(strunits.c_str())); - ((TimeDomainDisplayZoomer*)_zoomer)->SetTimePrecision(display_units); - ((TimeDomainDisplayZoomer*)_zoomer)->SetUnitType(strunits); + double newsr = sr/units; + if(newsr != _sampleRate) { + _sampleRate = sr/units; + _resetXAxisPoints(); + + // While we could change the displayed sigfigs based on the unit being + // displayed, I think it looks better by just setting it to 4 regardless. + //double display_units = ceil(log10(units)/2.0); + double display_units = 4; + setAxisTitle(QwtPlot::xBottom, QString("Time (%1)").arg(strunits.c_str())); + ((TimeDomainDisplayZoomer*)_zoomer)->SetTimePrecision(display_units); + ((TimeDomainDisplayZoomer*)_zoomer)->SetUnitType(strunits); + } } #endif /* TIME_DOMAIN_DISPLAY_PLOT_C */ |