From 32270dc747299d47fe98e8059e1cd3aeacf9fe56 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20K=C3=A4berich?= <kaeberic@ibr.cs.tu-bs.de>
Date: Sun, 1 Nov 2020 22:56:31 +0100
Subject: [PATCH] Autoscale improvements

---
 .../CustomWidgets/tilewidget.cpp              |   4 +-
 .../PC_Application/Traces/markerwidget.cpp    |   1 +
 Software/PC_Application/Traces/trace.cpp      |  19 +-
 Software/PC_Application/Traces/trace.h        |   1 +
 Software/PC_Application/Traces/tracemodel.cpp |   3 +
 Software/PC_Application/Traces/tracemodel.h   |   1 +
 Software/PC_Application/Traces/traceplot.cpp  |   2 +-
 Software/PC_Application/Traces/traceplot.h    |   2 +-
 .../PC_Application/Traces/tracexyplot.cpp     | 129 ++-
 Software/PC_Application/Traces/tracexyplot.h  |  36 +-
 .../Traces/xyplotaxisdialog.cpp               |  53 +-
 .../PC_Application/Traces/xyplotaxisdialog.ui | 902 +++++++++---------
 12 files changed, 640 insertions(+), 513 deletions(-)

diff --git a/Software/PC_Application/CustomWidgets/tilewidget.cpp b/Software/PC_Application/CustomWidgets/tilewidget.cpp
index 38ff1fa..0f1dc12 100644
--- a/Software/PC_Application/CustomWidgets/tilewidget.cpp
+++ b/Software/PC_Application/CustomWidgets/tilewidget.cpp
@@ -130,7 +130,9 @@ void TileWidget::on_bSmithchart_clicked()
 
 void TileWidget::on_bXYplot_clicked()
 {
-    setContent(new TraceXYPlot(model));
+    auto plot = new TraceXYPlot(model);
+    setContent(plot);
+    plot->axisSetupDialog();
 }
 
 void TileWidget::traceDeleted(TracePlot *)
diff --git a/Software/PC_Application/Traces/markerwidget.cpp b/Software/PC_Application/Traces/markerwidget.cpp
index 5ae7d63..2731b95 100644
--- a/Software/PC_Application/Traces/markerwidget.cpp
+++ b/Software/PC_Application/Traces/markerwidget.cpp
@@ -18,6 +18,7 @@ MarkerWidget::MarkerWidget(TraceMarkerModel &model, QWidget *parent) :
 
     connect(&model.getModel(), &TraceModel::traceAdded, this, &MarkerWidget::updatePersistentEditors);
     connect(&model.getModel(), &TraceModel::traceRemoved, this, &MarkerWidget::updatePersistentEditors);
+    connect(&model.getModel(), &TraceModel::traceNameChanged, this, &MarkerWidget::updatePersistentEditors);
 }
 
 MarkerWidget::~MarkerWidget()
diff --git a/Software/PC_Application/Traces/trace.cpp b/Software/PC_Application/Traces/trace.cpp
index 0eccc99..9e3d4fc 100644
--- a/Software/PC_Application/Traces/trace.cpp
+++ b/Software/PC_Application/Traces/trace.cpp
@@ -156,16 +156,22 @@ void Trace::updateTimeDomainData()
 //        system_clock::now().time_since_epoch()
 //    ).count();
     auto steps = size();
-    if(minFreq() * size() != maxFreq()) {
+    auto firstStep = minFreq();
+    if(firstStep == 0) {
+        // zero as first step would result in infinite number of points, skip and start with second
+        firstStep = _data[1].frequency;
+        steps--;
+    }
+    if(firstStep * steps != maxFreq()) {
         // data is not available with correct frequency spacing, calculate required steps
-        steps = maxFreq() / minFreq();
+        steps = maxFreq() / firstStep;
     }
     const double PI = 3.141592653589793238463;
     // reserve vector for negative frequenies and DC as well
     vector<complex<double>> frequencyDomain(2*steps + 1);
     // copy frequencies, use the flipped conjugate for negative part
     for(unsigned int i = 1;i<=steps;i++) {
-        auto S = getData(minFreq() * i);
+        auto S = getData(firstStep * i);
         constexpr double alpha0 = 0.54;
         auto hamming = alpha0 - (1.0 - alpha0) * -cos(PI * i / steps);
         S *= hamming;
@@ -180,13 +186,18 @@ void Trace::updateTimeDomainData()
     auto fft_bins = frequencyDomain.size();
     timeDomain.clear();
     timeDomain.resize(fft_bins);
-    const double fs = 1.0 / (minFreq() * fft_bins);
+    const double fs = 1.0 / (firstStep * fft_bins);
     double last_step = 0.0;
 
     Fft::transform(frequencyDomain, true);
+    constexpr double c = 299792458;
     for(unsigned int i = 0;i<fft_bins;i++) {
         TimedomainData t;
         t.time = fs * i;
+        t.distance = t.time * c * 0.66; // TODO user settable velocity factor
+        if(isReflection()) {
+            t.distance /= 2;
+        }
         t.impulseResponse = real(frequencyDomain[i]) / fft_bins;
         t.stepResponse = last_step;
         last_step += t.impulseResponse;
diff --git a/Software/PC_Application/Traces/trace.h b/Software/PC_Application/Traces/trace.h
index bbaa9f1..baea5f0 100644
--- a/Software/PC_Application/Traces/trace.h
+++ b/Software/PC_Application/Traces/trace.h
@@ -24,6 +24,7 @@ public:
     class TimedomainData {
     public:
         double time;
+        double distance;
         double impulseResponse;
         double stepResponse;
     };
diff --git a/Software/PC_Application/Traces/tracemodel.cpp b/Software/PC_Application/Traces/tracemodel.cpp
index 387f931..d1a4287 100644
--- a/Software/PC_Application/Traces/tracemodel.cpp
+++ b/Software/PC_Application/Traces/tracemodel.cpp
@@ -20,6 +20,9 @@ TraceModel::~TraceModel()
 void TraceModel::addTrace(Trace *t)
 {
     beginInsertRows(QModelIndex(), traces.size(), traces.size());
+    connect(t, &Trace::nameChanged, [=]() {
+       emit traceNameChanged(t);
+    });
     traces.push_back(t);
     endInsertRows();
     emit traceAdded(t);
diff --git a/Software/PC_Application/Traces/tracemodel.h b/Software/PC_Application/Traces/tracemodel.h
index 26253ca..6ad464a 100644
--- a/Software/PC_Application/Traces/tracemodel.h
+++ b/Software/PC_Application/Traces/tracemodel.h
@@ -32,6 +32,7 @@ signals:
     void traceAdded(Trace *t);
     void traceRemoved(Trace *t);
     void requiredExcitation(bool excitePort1, bool excitePort2);
+    void traceNameChanged(Trace *t);
 
 public slots:
     void clearVNAData();
diff --git a/Software/PC_Application/Traces/traceplot.cpp b/Software/PC_Application/Traces/traceplot.cpp
index a0015de..a55d8cd 100644
--- a/Software/PC_Application/Traces/traceplot.cpp
+++ b/Software/PC_Application/Traces/traceplot.cpp
@@ -121,8 +121,8 @@ void TracePlot::triggerReplot()
 {
     auto now = QTime::currentTime();
     if (lastUpdate.msecsTo(now) >= MinUpdateInterval) {
-        replot();
         lastUpdate = now;
+        replot();
     }
 }
 
diff --git a/Software/PC_Application/Traces/traceplot.h b/Software/PC_Application/Traces/traceplot.h
index 856f82e..e4fd274 100644
--- a/Software/PC_Application/Traces/traceplot.h
+++ b/Software/PC_Application/Traces/traceplot.h
@@ -16,7 +16,7 @@ public:
 
     virtual void enableTrace(Trace *t, bool enabled);
     void mouseDoubleClickEvent(QMouseEvent *event) override;
-    virtual void setXAxis(double min, double max){Q_UNUSED(min);Q_UNUSED(max)};
+    virtual void updateSpan(double min, double max){Q_UNUSED(min);Q_UNUSED(max)};
 
     static std::set<TracePlot *> getPlots();
 
diff --git a/Software/PC_Application/Traces/tracexyplot.cpp b/Software/PC_Application/Traces/tracexyplot.cpp
index 9a8122c..f5aa5f2 100644
--- a/Software/PC_Application/Traces/tracexyplot.cpp
+++ b/Software/PC_Application/Traces/tracexyplot.cpp
@@ -91,8 +91,11 @@ public:
         case TraceXYPlot::YAxisType::Impedance: {
             auto sample = t.getTDR()[i];
             QPointF p;
-            // TODO set distance
-            p.setX(sample.time);
+            if(Xtype == TraceXYPlot::XAxisType::Time) {
+                p.setX(sample.time);
+            } else {
+                p.setX(sample.distance);
+            }
             p.setY(TimeAxisTransformation(Ytype, &t, i));
             return p;
         }
@@ -116,23 +119,23 @@ TraceXYPlot::TraceXYPlot(TraceModel &model, QWidget *parent)
       selectedMarker(nullptr)
 {
     YAxis[0].log = false;
-    YAxis[0].Ytype = YAxisType::Disabled;
+    YAxis[0].type = YAxisType::Disabled;
     YAxis[0].rangeDiv = 1;
     YAxis[0].rangeMax = 10;
     YAxis[0].rangeMin = 0;
     YAxis[0].autorange = false;
     YAxis[1].log = false;
-    YAxis[1].Ytype = YAxisType::Disabled;
+    YAxis[1].type = YAxisType::Disabled;
     YAxis[1].rangeDiv = 1;
     YAxis[1].rangeMax = 10;
     YAxis[1].rangeMin = 0;
     YAxis[1].autorange = false;
-    XAxis.Xtype = XAxisType::Frequency;
+    XAxis.type = XAxisType::Frequency;
     XAxis.log = false;
     XAxis.rangeDiv = 1;
     XAxis.rangeMax = 10;
     XAxis.rangeMin = 0;
-    XAxis.autorange = true;
+    XAxis.mode = XAxisMode::UseSpan;
 
     plot = new QwtPlot(this);
 
@@ -168,10 +171,10 @@ TraceXYPlot::TraceXYPlot(TraceModel &model, QWidget *parent)
     setYAxis(0, YAxisType::Magnitude, false, false, -120, 20, 10);
     setYAxis(1, YAxisType::Phase, false, false, -180, 180, 30);
     // enable autoscaling and set for full span (no information about actual span available yet)
-    setXAxis(0, 6000000000);
-    setXAxis(XAxisType::Frequency, true, 0, 6000000000, 600000000);
+    updateSpan(0, 6000000000);
+    setXAxis(XAxisType::Frequency, XAxisMode::UseSpan, 0, 6000000000, 600000000);
     // get notified when the span changes
-    connect(&model, &TraceModel::SpanChanged, this, qOverload<double, double>(&TraceXYPlot::setXAxis));
+    connect(&model, &TraceModel::SpanChanged, this, qOverload<double, double>(&TraceXYPlot::updateSpan));
 
     allPlots.insert(this);
 }
@@ -187,16 +190,15 @@ TraceXYPlot::~TraceXYPlot()
     allPlots.erase(this);
 }
 
-void TraceXYPlot::setXAxis(double min, double max)
+void TraceXYPlot::updateSpan(double min, double max)
 {
     sweep_fmin = min;
     sweep_fmax = max;
-    updateXAxis();
 }
 
 void TraceXYPlot::setYAxis(int axis, TraceXYPlot::YAxisType type, bool log, bool autorange, double min, double max, double div)
 {
-    if(YAxis[axis].Ytype != type) {
+    if(YAxis[axis].type != type) {
         // remove traces that are active but not supported with the new axis type
         bool erased = false;
         do {
@@ -210,12 +212,12 @@ void TraceXYPlot::setYAxis(int axis, TraceXYPlot::YAxisType type, bool log, bool
             }
         } while(erased);
 
-        if(isTDRtype(YAxis[axis].Ytype)) {
+        if(isTDRtype(YAxis[axis].type)) {
             for(auto t : tracesAxis[axis]) {
                 t->removeTDRinterest();
             }
         }
-        YAxis[axis].Ytype = type;
+        YAxis[axis].type = type;
 
         for(auto t : tracesAxis[axis]) {
             // supported but needs an adjusted QwtSeriesData
@@ -252,20 +254,19 @@ void TraceXYPlot::setYAxis(int axis, TraceXYPlot::YAxisType type, bool log, bool
     replot();
 }
 
-void TraceXYPlot::setXAxis(XAxisType type, bool autorange, double min, double max, double div)
+void TraceXYPlot::setXAxis(XAxisType type, XAxisMode mode, double min, double max, double div)
 {
-    XAxis.Xtype = type;
-    XAxis.autorange = autorange;
+    XAxis.type = type;
+    XAxis.mode = mode;
     XAxis.rangeMin = min;
     XAxis.rangeMax = max;
     XAxis.rangeDiv = div;
-    updateXAxis();
 }
 
 void TraceXYPlot::enableTrace(Trace *t, bool enabled)
 {
     for(int axis = 0;axis < 2;axis++) {
-        if(supported(t, YAxis[axis].Ytype)) {
+        if(supported(t, YAxis[axis].type)) {
             enableTraceAxis(t, axis, enabled);
         }
     }
@@ -290,17 +291,20 @@ bool TraceXYPlot::isTDRtype(TraceXYPlot::YAxisType type)
     }
 }
 
+void TraceXYPlot::axisSetupDialog()
+{
+    auto setup = new XYplotAxisDialog(this);
+    setup->show();
+}
+
 void TraceXYPlot::updateContextMenu()
 {
     contextmenu->clear();
     auto setup = new QAction("Axis setup...", contextmenu);
-    connect(setup, &QAction::triggered, [this]() {
-        auto setup = new XYplotAxisDialog(this);
-        setup->show();
-    });
+    connect(setup, &QAction::triggered, this, &TraceXYPlot::axisSetupDialog);
     contextmenu->addAction(setup);
     for(int axis = 0;axis < 2;axis++) {
-        if(YAxis[axis].Ytype == YAxisType::Disabled) {
+        if(YAxis[axis].type == YAxisType::Disabled) {
             continue;
         }
         if(axis == 0) {
@@ -310,7 +314,7 @@ void TraceXYPlot::updateContextMenu()
         }
         for(auto t : traces) {
             // Skip traces that are not applicable for the selected axis type
-            if(!supported(t.first, YAxis[axis].Ytype)) {
+            if(!supported(t.first, YAxis[axis].type)) {
                 continue;
             }
 
@@ -341,6 +345,7 @@ bool TraceXYPlot::supported(Trace *)
 
 void TraceXYPlot::replot()
 {
+    updateXAxis();
     plot->replot();
 }
 
@@ -381,12 +386,12 @@ void TraceXYPlot::enableTraceAxis(Trace *t, int axis, bool enabled)
                     markerAdded(m);
                 }
             }
-            if(isTDRtype(YAxis[axis].Ytype)) {
+            if(isTDRtype(YAxis[axis].type)) {
                 t->addTDRinterest();
             }
             traceColorChanged(t);
         } else {
-            if(isTDRtype(YAxis[axis].Ytype)) {
+            if(isTDRtype(YAxis[axis].type)) {
                 t->removeTDRinterest();
             }
             tracesAxis[axis].erase(t);
@@ -436,22 +441,78 @@ bool TraceXYPlot::supported(Trace *t, TraceXYPlot::YAxisType type)
 
 void TraceXYPlot::updateXAxis()
 {
-    if(XAxis.autorange && sweep_fmax-sweep_fmin > 0) {
+    if(XAxis.mode == XAxisMode::Manual) {
+        plot->setAxisScale(QwtPlot::xBottom, XAxis.rangeMin, XAxis.rangeMax, XAxis.rangeDiv);
+    } else {
+        // automatic mode, figure out limits
+        double max = std::numeric_limits<double>::lowest();
+        double min = std::numeric_limits<double>::max();
+        if(XAxis.mode == XAxisMode::UseSpan) {
+            min = sweep_fmin;
+            max = sweep_fmax;
+        } else if(XAxis.mode == XAxisMode::FitTraces) {
+            for(auto t : traces) {
+                bool enabled = (tracesAxis[0].find(t.first) != tracesAxis[0].end()
+                        || tracesAxis[1].find(t.first) != tracesAxis[1].end());
+                auto trace = t.first;
+                if(enabled && trace->isVisible()) {
+                    // this trace is currently displayed
+                    double trace_min, trace_max;
+                    switch(XAxis.type) {
+                    case XAxisType::Frequency:
+                        trace_min = trace->minFreq();
+                        trace_max = trace->maxFreq();
+                        break;
+                    case XAxisType::Time:
+                        trace_min = trace->getTDR().front().time;
+                        trace_max = trace->getTDR().back().time;
+                        break;
+                    case XAxisType::Distance:
+                        trace_min = trace->getTDR().front().distance;
+                        trace_max = trace->getTDR().back().distance;
+                        break;
+                    }
+                    if(trace_min < min) {
+                        min = trace_min;
+                    }
+                    if(trace_max > max) {
+                        max = trace_max;
+                    }
+                }
+            }
+        }
+        if(min >= max) {
+            // still at initial values, no traces are active, leave axis unchanged
+            return;
+        }
+        constexpr int minDivisions = 8;
+        double max_div_step = (max - min) / minDivisions;
+        int zeros = floor(log10(max_div_step));
+        double decimals_shift = pow(10, zeros);
+        max_div_step /= decimals_shift;
+        if(max_div_step >= 5) {
+            max_div_step = 5;
+        } else if(max_div_step >= 2) {
+            max_div_step = 2;
+        } else {
+            max_div_step = 1;
+        }
+        auto div_step = max_div_step * decimals_shift;
+        // round min up to next multiple of div_step
+        min = ceil(min / div_step) * div_step;
         QList<double> tickList;
-        for(double tick = sweep_fmin;tick <= sweep_fmax;tick+= (sweep_fmax-sweep_fmin)/10) {
+        for(double tick = min;tick <= max;tick += div_step) {
             tickList.append(tick);
         }
-        QwtScaleDiv scalediv(sweep_fmin, sweep_fmax, QList<double>(), QList<double>(), tickList);
+        QwtScaleDiv scalediv(min, max, QList<double>(), QList<double>(), tickList);
         plot->setAxisScaleDiv(QwtPlot::xBottom, scalediv);
-    } else {
-        plot->setAxisScale(QwtPlot::xBottom, XAxis.rangeMin, XAxis.rangeMax, XAxis.rangeDiv);
     }
     triggerReplot();
 }
 
 QwtSeriesData<QPointF> *TraceXYPlot::createQwtSeriesData(Trace &t, int axis)
 {
-    return new QwtTraceSeries(t, YAxis[axis].Ytype, XAxis.Xtype);
+    return new QwtTraceSeries(t, YAxis[axis].type, XAxis.type);
 }
 
 void TraceXYPlot::traceColorChanged(Trace *t)
@@ -513,7 +574,7 @@ void TraceXYPlot::markerDataChanged(TraceMarker *m)
 {
     auto qwtMarker = markers[m];
     qwtMarker->setXValue(m->getFrequency());
-    qwtMarker->setYValue(FrequencyAxisTransformation(YAxis[0].Ytype, m->getData()));
+    qwtMarker->setYValue(FrequencyAxisTransformation(YAxis[0].type, m->getData()));
     triggerReplot();
 }
 
diff --git a/Software/PC_Application/Traces/tracexyplot.h b/Software/PC_Application/Traces/tracexyplot.h
index afb0ba4..1846fd0 100644
--- a/Software/PC_Application/Traces/tracexyplot.h
+++ b/Software/PC_Application/Traces/tracexyplot.h
@@ -50,17 +50,24 @@ public:
         Time,
         Distance,
     };
+    enum class XAxisMode {
+        UseSpan,
+        FitTraces,
+        Manual,
+    };
 
-    virtual void setXAxis(double min, double max) override;
+    virtual void updateSpan(double min, double max) override;
     void setYAxis(int axis, YAxisType type, bool log, bool autorange, double min, double max, double div);
-    void setXAxis(XAxisType type, bool autorange, double min, double max, double div);
+    void setXAxis(XAxisType type, XAxisMode mode, double min, double max, double div);
     void enableTrace(Trace *t, bool enabled) override;
 
     // Applies potentially changed colors to all XY-plots
     static void updateGraphColors();
-
     bool isTDRtype(YAxisType type);
 
+public slots:
+    void axisSetupDialog();
+
 protected:
     virtual void updateContextMenu() override;
     virtual bool supported(Trace *t) override;
@@ -85,20 +92,27 @@ private:
 
     std::set<Trace*> tracesAxis[2];
 
-    class Axis {
+    class YAxis {
     public:
-        union {
-            YAxisType Ytype;
-            XAxisType Xtype;
-        };
-        bool log;
+        YAxisType type;
+        bool log; // not used yet
         bool autorange;
         double rangeMin;
         double rangeMax;
         double rangeDiv;
     };
-    Axis YAxis[2];
-    Axis XAxis;
+    class XAxis {
+    public:
+        XAxisType type;
+        XAxisMode mode;
+        bool log; // not used yet
+        double rangeMin;
+        double rangeMax;
+        double rangeDiv;
+    };
+
+    YAxis YAxis[2];
+    XAxis XAxis;
     double sweep_fmin, sweep_fmax;
 
     using CurveData = struct {
diff --git a/Software/PC_Application/Traces/xyplotaxisdialog.cpp b/Software/PC_Application/Traces/xyplotaxisdialog.cpp
index 805856b..9f508a2 100644
--- a/Software/PC_Application/Traces/xyplotaxisdialog.cpp
+++ b/Software/PC_Application/Traces/xyplotaxisdialog.cpp
@@ -59,16 +59,17 @@ XYplotAxisDialog::XYplotAxisDialog(TraceXYPlot *plot) :
        ui->Xmin->setEnabled(!checked);
        ui->Xmax->setEnabled(!checked);
        ui->Xdivs->setEnabled(!checked);
+       ui->Xautomode->setEnabled(checked);
     });
 
-    ui->XType->setCurrentIndex((int) plot->XAxis.Xtype);
+    ui->XType->setCurrentIndex((int) plot->XAxis.type);
     ui->Xmin->setPrefixes("pnum kMG");
     ui->Xmax->setPrefixes("pnum kMG");
     ui->Xdivs->setPrefixes("pnum kMG");
 
     // Fill initial values
     // assume same order in YAxisType enum as in ComboBox items
-    ui->Y1type->setCurrentIndex((int) plot->YAxis[0].Ytype);
+    ui->Y1type->setCurrentIndex((int) plot->YAxis[0].type);
     if(plot->YAxis[0].log) {
         ui->Y1log->setChecked(true);
     } else {
@@ -79,7 +80,7 @@ XYplotAxisDialog::XYplotAxisDialog(TraceXYPlot *plot) :
     ui->Y1max->setValueQuiet(plot->YAxis[0].rangeMax);
     ui->Y1divs->setValueQuiet(plot->YAxis[0].rangeDiv);
 
-    ui->Y2type->setCurrentIndex((int) plot->YAxis[1].Ytype);
+    ui->Y2type->setCurrentIndex((int) plot->YAxis[1].type);
     if(plot->YAxis[1].log) {
         ui->Y2log->setChecked(true);
     } else {
@@ -90,7 +91,12 @@ XYplotAxisDialog::XYplotAxisDialog(TraceXYPlot *plot) :
     ui->Y2max->setValueQuiet(plot->YAxis[1].rangeMax);
     ui->Y2divs->setValueQuiet(plot->YAxis[1].rangeDiv);
 
-    ui->Xauto->setChecked(plot->XAxis.autorange);
+    ui->Xauto->setChecked(plot->XAxis.mode != TraceXYPlot::XAxisMode::Manual);
+    if(plot->XAxis.mode == TraceXYPlot::XAxisMode::UseSpan) {
+        ui->Xautomode->setCurrentIndex(0);
+    } else {
+        ui->Xautomode->setCurrentIndex(1);
+    }
     ui->Xmin->setValueQuiet(plot->XAxis.rangeMin);
     ui->Xmax->setValueQuiet(plot->XAxis.rangeMax);
     ui->Xdivs->setValueQuiet(plot->XAxis.rangeDiv);
@@ -106,7 +112,24 @@ void XYplotAxisDialog::on_buttonBox_accepted()
     // set plot values to the ones selected in the dialog
     plot->setYAxis(0, (TraceXYPlot::YAxisType) ui->Y1type->currentIndex(), ui->Y1log->isChecked(), ui->Y1auto->isChecked(), ui->Y1min->value(), ui->Y1max->value(), ui->Y1divs->value());
     plot->setYAxis(1, (TraceXYPlot::YAxisType) ui->Y2type->currentIndex(), ui->Y2log->isChecked(), ui->Y2auto->isChecked(), ui->Y2min->value(), ui->Y2max->value(), ui->Y2divs->value());
-    plot->setXAxis((TraceXYPlot::XAxisType) ui->XType->currentIndex(), ui->Xauto->isChecked(), ui->Xmin->value(), ui->Xmax->value(), ui->Xdivs->value());
+    TraceXYPlot::XAxisMode mode;
+    if(ui->Xauto->isChecked()) {
+        if(ui->Xautomode->currentIndex() == 0) {
+            mode = TraceXYPlot::XAxisMode::UseSpan;
+        } else {
+            mode = TraceXYPlot::XAxisMode::FitTraces;
+        }
+    } else {
+        mode = TraceXYPlot::XAxisMode::Manual;
+    }
+    plot->setXAxis((TraceXYPlot::XAxisType) ui->XType->currentIndex(), mode, ui->Xmin->value(), ui->Xmax->value(), ui->Xdivs->value());
+}
+
+static void enableComboBoxItem(QComboBox *cb, int itemNum, bool enable) {
+    auto *model = qobject_cast<QStandardItemModel *>(cb->model());
+    auto item = model->item(itemNum);
+    item->setFlags(enable ? item->flags() | Qt::ItemIsEnabled
+                            : item->flags() & ~Qt::ItemIsEnabled);
 }
 
 void XYplotAxisDialog::XAxisTypeChanged(int XAxisIndex)
@@ -116,14 +139,8 @@ void XYplotAxisDialog::XAxisTypeChanged(int XAxisIndex)
     for(auto t : TraceXYPlot::YAxisTypes) {
         auto enable = supported.count(t) > 0;
         auto index = (int) t;
-        auto *model = qobject_cast<QStandardItemModel *>(ui->Y1type->model());
-        auto item = model->item(index);
-        item->setFlags(enable ? item->flags() | Qt::ItemIsEnabled
-                                : item->flags() & ~Qt::ItemIsEnabled);
-        model = qobject_cast<QStandardItemModel *>(ui->Y2type->model());
-        item = model->item(index);
-        item->setFlags(enable ? item->flags() | Qt::ItemIsEnabled
-                                : item->flags() & ~Qt::ItemIsEnabled);
+        enableComboBoxItem(ui->Y1type, index, enable);
+        enableComboBoxItem(ui->Y2type, index, enable);
     }
     // Disable Yaxis if previously selected type is not supported
     if(!supported.count((TraceXYPlot::YAxisType)ui->Y1type->currentIndex())) {
@@ -133,6 +150,16 @@ void XYplotAxisDialog::XAxisTypeChanged(int XAxisIndex)
         ui->Y2type->setCurrentIndex(0);
     }
 
+    if(type == TraceXYPlot::XAxisType::Frequency) {
+        enableComboBoxItem(ui->Xautomode, 0, true);
+    } else {
+        // auto mode using span not supported in time mode
+        if(ui->Xautomode->currentIndex() == 0) {
+            ui->Xautomode->setCurrentIndex(1);
+            enableComboBoxItem(ui->Xautomode, 0, false);
+        }
+    }
+
     QString unit;
     switch(type) {
     case TraceXYPlot::XAxisType::Frequency: unit = "Hz"; break;
diff --git a/Software/PC_Application/Traces/xyplotaxisdialog.ui b/Software/PC_Application/Traces/xyplotaxisdialog.ui
index e4dcc4e..faf48f0 100644
--- a/Software/PC_Application/Traces/xyplotaxisdialog.ui
+++ b/Software/PC_Application/Traces/xyplotaxisdialog.ui
@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>715</width>
+    <width>689</width>
     <height>282</height>
    </rect>
   </property>
@@ -16,487 +16,493 @@
   <property name="modal">
    <bool>true</bool>
   </property>
-  <widget class="QDialogButtonBox" name="buttonBox">
-   <property name="geometry">
-    <rect>
-     <x>9</x>
-     <y>248</y>
-     <width>166</width>
-     <height>25</height>
-    </rect>
-   </property>
-   <property name="orientation">
-    <enum>Qt::Horizontal</enum>
-   </property>
-   <property name="standardButtons">
-    <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
-   </property>
-  </widget>
-  <widget class="QWidget" name="layoutWidget">
-   <property name="geometry">
-    <rect>
-     <x>10</x>
-     <y>10</y>
-     <width>701</width>
-     <height>233</height>
-    </rect>
-   </property>
-   <layout class="QHBoxLayout" name="horizontalLayout_3">
-    <item>
-     <layout class="QVBoxLayout" name="verticalLayout">
-      <item>
-       <widget class="QLabel" name="label_2">
-        <property name="font">
-         <font>
-          <pointsize>15</pointsize>
-         </font>
-        </property>
-        <property name="text">
-         <string>Primary Y axis</string>
-        </property>
-        <property name="alignment">
-         <set>Qt::AlignCenter</set>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <layout class="QFormLayout" name="formLayout">
-        <item row="0" column="0">
-         <widget class="QLabel" name="label">
-          <property name="text">
-           <string>Type:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="0" column="1">
-         <widget class="QComboBox" name="Y1type">
-          <item>
+  <layout class="QVBoxLayout" name="verticalLayout_4">
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_4">
+     <item>
+      <layout class="QVBoxLayout" name="verticalLayout">
+       <item>
+        <widget class="QLabel" name="label_2">
+         <property name="font">
+          <font>
+           <pointsize>15</pointsize>
+          </font>
+         </property>
+         <property name="text">
+          <string>Primary Y axis</string>
+         </property>
+         <property name="alignment">
+          <set>Qt::AlignCenter</set>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <layout class="QFormLayout" name="formLayout">
+         <item row="0" column="0">
+          <widget class="QLabel" name="label">
            <property name="text">
-            <string>Disabled</string>
+            <string>Type:</string>
            </property>
-          </item>
-          <item>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QComboBox" name="Y1type">
+           <item>
+            <property name="text">
+             <string>Disabled</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Magnitude</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Phase</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>VSWR</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Impulse Response</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Step Response</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Impedance</string>
+            </property>
+           </item>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <widget class="Line" name="line">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout">
+         <item>
+          <widget class="QRadioButton" name="Y1linear">
            <property name="text">
-            <string>Magnitude</string>
+            <string>Linear</string>
+           </property>
+           <attribute name="buttonGroup">
+            <string notr="true">Y1group</string>
+           </attribute>
+          </widget>
+         </item>
+         <item>
+          <widget class="QRadioButton" name="Y1log">
+           <property name="enabled">
+            <bool>false</bool>
            </property>
-          </item>
-          <item>
            <property name="text">
-            <string>Phase</string>
+            <string>Log</string>
            </property>
-          </item>
-          <item>
+           <attribute name="buttonGroup">
+            <string notr="true">Y1group</string>
+           </attribute>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <widget class="Line" name="line_2">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <layout class="QFormLayout" name="formLayout_2">
+         <item row="0" column="0">
+          <widget class="QLabel" name="label_3">
            <property name="text">
-            <string>VSWR</string>
+            <string>Range:</string>
            </property>
-          </item>
-          <item>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QCheckBox" name="Y1auto">
            <property name="text">
-            <string>Impulse Response</string>
+            <string>Auto</string>
            </property>
-          </item>
-          <item>
+          </widget>
+         </item>
+         <item row="1" column="0">
+          <widget class="QLabel" name="label_4">
            <property name="text">
-            <string>Step Response</string>
+            <string>Maximum:</string>
            </property>
-          </item>
-          <item>
+          </widget>
+         </item>
+         <item row="1" column="1">
+          <widget class="SIUnitEdit" name="Y1max"/>
+         </item>
+         <item row="2" column="0">
+          <widget class="QLabel" name="label_5">
            <property name="text">
-            <string>Impedance</string>
+            <string>Minimum:</string>
            </property>
-          </item>
-         </widget>
-        </item>
-       </layout>
-      </item>
-      <item>
-       <widget class="Line" name="line">
-        <property name="orientation">
-         <enum>Qt::Horizontal</enum>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <layout class="QHBoxLayout" name="horizontalLayout">
-        <item>
-         <widget class="QRadioButton" name="Y1linear">
-          <property name="text">
-           <string>Linear</string>
-          </property>
-          <attribute name="buttonGroup">
-           <string notr="true">Y1group</string>
-          </attribute>
-         </widget>
-        </item>
-        <item>
-         <widget class="QRadioButton" name="Y1log">
-          <property name="enabled">
-           <bool>false</bool>
-          </property>
-          <property name="text">
-           <string>Log</string>
-          </property>
-          <attribute name="buttonGroup">
-           <string notr="true">Y1group</string>
-          </attribute>
-         </widget>
-        </item>
-       </layout>
-      </item>
-      <item>
-       <widget class="Line" name="line_2">
-        <property name="orientation">
-         <enum>Qt::Horizontal</enum>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <layout class="QFormLayout" name="formLayout_2">
-        <item row="0" column="0">
-         <widget class="QLabel" name="label_3">
-          <property name="text">
-           <string>Range:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="0" column="1">
-         <widget class="QCheckBox" name="Y1auto">
-          <property name="text">
-           <string>Auto</string>
-          </property>
-         </widget>
-        </item>
-        <item row="1" column="0">
-         <widget class="QLabel" name="label_4">
-          <property name="text">
-           <string>Maximum:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="1" column="1">
-         <widget class="SIUnitEdit" name="Y1max"/>
-        </item>
-        <item row="2" column="0">
-         <widget class="QLabel" name="label_5">
-          <property name="text">
-           <string>Minimum:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="2" column="1">
-         <widget class="SIUnitEdit" name="Y1min"/>
-        </item>
-        <item row="3" column="0">
-         <widget class="QLabel" name="label_6">
-          <property name="text">
-           <string>Divisions:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="3" column="1">
-         <widget class="SIUnitEdit" name="Y1divs"/>
-        </item>
-       </layout>
-      </item>
-     </layout>
-    </item>
-    <item>
-     <widget class="Line" name="line_3">
-      <property name="orientation">
-       <enum>Qt::Vertical</enum>
-      </property>
-     </widget>
-    </item>
-    <item>
-     <layout class="QVBoxLayout" name="verticalLayout_2">
-      <item>
-       <widget class="QLabel" name="label_7">
-        <property name="font">
-         <font>
-          <pointsize>15</pointsize>
-         </font>
-        </property>
-        <property name="text">
-         <string>Secondary Y axis</string>
-        </property>
-        <property name="alignment">
-         <set>Qt::AlignCenter</set>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <layout class="QFormLayout" name="formLayout_3">
-        <item row="0" column="0">
-         <widget class="QLabel" name="label_8">
-          <property name="text">
-           <string>Type:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="0" column="1">
-         <widget class="QComboBox" name="Y2type">
-          <item>
+          </widget>
+         </item>
+         <item row="2" column="1">
+          <widget class="SIUnitEdit" name="Y1min"/>
+         </item>
+         <item row="3" column="0">
+          <widget class="QLabel" name="label_6">
            <property name="text">
-            <string>Disabled</string>
+            <string>Divisions:</string>
            </property>
-          </item>
-          <item>
+          </widget>
+         </item>
+         <item row="3" column="1">
+          <widget class="SIUnitEdit" name="Y1divs"/>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <widget class="Line" name="line_3">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <layout class="QVBoxLayout" name="verticalLayout_2">
+       <item>
+        <widget class="QLabel" name="label_7">
+         <property name="font">
+          <font>
+           <pointsize>15</pointsize>
+          </font>
+         </property>
+         <property name="text">
+          <string>Secondary Y axis</string>
+         </property>
+         <property name="alignment">
+          <set>Qt::AlignCenter</set>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <layout class="QFormLayout" name="formLayout_3">
+         <item row="0" column="0">
+          <widget class="QLabel" name="label_8">
            <property name="text">
-            <string>Magnitude</string>
+            <string>Type:</string>
            </property>
-          </item>
-          <item>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QComboBox" name="Y2type">
+           <item>
+            <property name="text">
+             <string>Disabled</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Magnitude</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Phase</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>VSWR</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Impulse Response</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Step Response</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Impedance</string>
+            </property>
+           </item>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <widget class="Line" name="line_4">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_2">
+         <item>
+          <widget class="QRadioButton" name="Y2linear">
            <property name="text">
-            <string>Phase</string>
+            <string>Linear</string>
+           </property>
+           <attribute name="buttonGroup">
+            <string notr="true">Y2group</string>
+           </attribute>
+          </widget>
+         </item>
+         <item>
+          <widget class="QRadioButton" name="Y2log">
+           <property name="enabled">
+            <bool>false</bool>
            </property>
-          </item>
-          <item>
            <property name="text">
-            <string>VSWR</string>
+            <string>Log</string>
            </property>
-          </item>
-          <item>
+           <attribute name="buttonGroup">
+            <string notr="true">Y2group</string>
+           </attribute>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <widget class="Line" name="line_5">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <layout class="QFormLayout" name="formLayout_4">
+         <item row="0" column="0">
+          <widget class="QLabel" name="label_9">
            <property name="text">
-            <string>Impulse Response</string>
+            <string>Range:</string>
            </property>
-          </item>
-          <item>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QCheckBox" name="Y2auto">
            <property name="text">
-            <string>Step Response</string>
+            <string>Auto</string>
            </property>
-          </item>
-          <item>
+          </widget>
+         </item>
+         <item row="1" column="0">
+          <widget class="QLabel" name="label_10">
            <property name="text">
-            <string>Impedance</string>
+            <string>Maximum:</string>
            </property>
-          </item>
-         </widget>
-        </item>
-       </layout>
-      </item>
-      <item>
-       <widget class="Line" name="line_4">
-        <property name="orientation">
-         <enum>Qt::Horizontal</enum>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <layout class="QHBoxLayout" name="horizontalLayout_2">
-        <item>
-         <widget class="QRadioButton" name="Y2linear">
-          <property name="text">
-           <string>Linear</string>
-          </property>
-          <attribute name="buttonGroup">
-           <string notr="true">Y2group</string>
-          </attribute>
-         </widget>
-        </item>
-        <item>
-         <widget class="QRadioButton" name="Y2log">
-          <property name="enabled">
-           <bool>false</bool>
-          </property>
-          <property name="text">
-           <string>Log</string>
-          </property>
-          <attribute name="buttonGroup">
-           <string notr="true">Y2group</string>
-          </attribute>
-         </widget>
-        </item>
-       </layout>
-      </item>
-      <item>
-       <widget class="Line" name="line_5">
-        <property name="orientation">
-         <enum>Qt::Horizontal</enum>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <layout class="QFormLayout" name="formLayout_4">
-        <item row="0" column="0">
-         <widget class="QLabel" name="label_9">
-          <property name="text">
-           <string>Range:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="0" column="1">
-         <widget class="QCheckBox" name="Y2auto">
-          <property name="text">
-           <string>Auto</string>
-          </property>
-         </widget>
-        </item>
-        <item row="1" column="0">
-         <widget class="QLabel" name="label_10">
-          <property name="text">
-           <string>Maximum:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="1" column="1">
-         <widget class="SIUnitEdit" name="Y2max"/>
-        </item>
-        <item row="2" column="0">
-         <widget class="QLabel" name="label_11">
-          <property name="text">
-           <string>Minimum:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="2" column="1">
-         <widget class="SIUnitEdit" name="Y2min"/>
-        </item>
-        <item row="3" column="0">
-         <widget class="QLabel" name="label_12">
-          <property name="text">
-           <string>Divisions:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="3" column="1">
-         <widget class="SIUnitEdit" name="Y2divs"/>
-        </item>
-       </layout>
-      </item>
-     </layout>
-    </item>
-    <item>
-     <widget class="Line" name="line_6">
-      <property name="orientation">
-       <enum>Qt::Vertical</enum>
-      </property>
-     </widget>
-    </item>
-    <item>
-     <layout class="QVBoxLayout" name="verticalLayout_3">
-      <item>
-       <widget class="QLabel" name="label_13">
-        <property name="sizePolicy">
-         <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
-          <horstretch>0</horstretch>
-          <verstretch>0</verstretch>
-         </sizepolicy>
-        </property>
-        <property name="font">
-         <font>
-          <pointsize>15</pointsize>
-         </font>
-        </property>
-        <property name="text">
-         <string>X axis</string>
-        </property>
-        <property name="alignment">
-         <set>Qt::AlignCenter</set>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <layout class="QFormLayout" name="formLayout_5">
-        <item row="0" column="0">
-         <widget class="QLabel" name="label_14">
-          <property name="text">
-           <string>Type:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="0" column="1">
-         <widget class="QComboBox" name="XType">
-          <item>
+          </widget>
+         </item>
+         <item row="1" column="1">
+          <widget class="SIUnitEdit" name="Y2max"/>
+         </item>
+         <item row="2" column="0">
+          <widget class="QLabel" name="label_11">
            <property name="text">
-            <string>Frequency</string>
+            <string>Minimum:</string>
            </property>
-          </item>
-          <item>
+          </widget>
+         </item>
+         <item row="2" column="1">
+          <widget class="SIUnitEdit" name="Y2min"/>
+         </item>
+         <item row="3" column="0">
+          <widget class="QLabel" name="label_12">
            <property name="text">
-            <string>Time</string>
+            <string>Divisions:</string>
            </property>
-          </item>
-          <item>
+          </widget>
+         </item>
+         <item row="3" column="1">
+          <widget class="SIUnitEdit" name="Y2divs"/>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <widget class="Line" name="line_6">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <layout class="QVBoxLayout" name="verticalLayout_3">
+       <item>
+        <widget class="QLabel" name="label_13">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="font">
+          <font>
+           <pointsize>15</pointsize>
+          </font>
+         </property>
+         <property name="text">
+          <string>X axis</string>
+         </property>
+         <property name="alignment">
+          <set>Qt::AlignCenter</set>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <layout class="QFormLayout" name="formLayout_5">
+         <item row="0" column="0">
+          <widget class="QLabel" name="label_14">
            <property name="text">
-            <string>Distance</string>
+            <string>Type:</string>
            </property>
-          </item>
-         </widget>
-        </item>
-       </layout>
-      </item>
-      <item>
-       <widget class="Line" name="line_7">
-        <property name="orientation">
-         <enum>Qt::Horizontal</enum>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <spacer name="verticalSpacer">
-        <property name="orientation">
-         <enum>Qt::Vertical</enum>
-        </property>
-        <property name="sizeHint" stdset="0">
-         <size>
-          <width>20</width>
-          <height>40</height>
-         </size>
-        </property>
-       </spacer>
-      </item>
-      <item>
-       <layout class="QFormLayout" name="formLayout_6">
-        <item row="0" column="0">
-         <widget class="QLabel" name="label_15">
-          <property name="text">
-           <string>Range:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="0" column="1">
-         <widget class="QCheckBox" name="Xauto">
-          <property name="text">
-           <string>Auto</string>
-          </property>
-         </widget>
-        </item>
-        <item row="1" column="0">
-         <widget class="QLabel" name="label_16">
-          <property name="text">
-           <string>Maximum:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="1" column="1">
-         <widget class="SIUnitEdit" name="Xmax"/>
-        </item>
-        <item row="2" column="0">
-         <widget class="QLabel" name="label_17">
-          <property name="text">
-           <string>Minimum:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="2" column="1">
-         <widget class="SIUnitEdit" name="Xmin"/>
-        </item>
-        <item row="3" column="0">
-         <widget class="QLabel" name="label_18">
-          <property name="text">
-           <string>Divisions:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="3" column="1">
-         <widget class="SIUnitEdit" name="Xdivs"/>
-        </item>
-       </layout>
-      </item>
-     </layout>
-    </item>
-   </layout>
-  </widget>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QComboBox" name="XType">
+           <item>
+            <property name="text">
+             <string>Frequency</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Time</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Distance</string>
+            </property>
+           </item>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <widget class="Line" name="line_7">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="verticalSpacer">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>40</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item>
+        <layout class="QFormLayout" name="formLayout_6">
+         <item row="0" column="0">
+          <widget class="QLabel" name="label_15">
+           <property name="text">
+            <string>Range:</string>
+           </property>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <layout class="QHBoxLayout" name="horizontalLayout_3">
+           <item>
+            <widget class="QCheckBox" name="Xauto">
+             <property name="text">
+              <string>Auto</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QComboBox" name="Xautomode">
+             <item>
+              <property name="text">
+               <string>Use Span</string>
+              </property>
+             </item>
+             <item>
+              <property name="text">
+               <string>Fit Traces</string>
+              </property>
+             </item>
+            </widget>
+           </item>
+          </layout>
+         </item>
+         <item row="1" column="0">
+          <widget class="QLabel" name="label_16">
+           <property name="text">
+            <string>Maximum:</string>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="1">
+          <widget class="SIUnitEdit" name="Xmax"/>
+         </item>
+         <item row="2" column="0">
+          <widget class="QLabel" name="label_17">
+           <property name="text">
+            <string>Minimum:</string>
+           </property>
+          </widget>
+         </item>
+         <item row="2" column="1">
+          <widget class="SIUnitEdit" name="Xmin"/>
+         </item>
+         <item row="3" column="0">
+          <widget class="QLabel" name="label_18">
+           <property name="text">
+            <string>Divisions:</string>
+           </property>
+          </widget>
+         </item>
+         <item row="3" column="1">
+          <widget class="SIUnitEdit" name="Xdivs"/>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
  </widget>
  <customwidgets>
   <customwidget>