void ScrollZoomer::rescale()
{
QwtScaleWidget *xScale = plot()->axisWidget( xAxis() );
QwtScaleWidget *yScale = plot()->axisWidget( yAxis() );
if ( zoomRectIndex() <= 0 )
{
if ( d_inZoom )
{
xScale->setMinBorderDist( 0, 0 );
yScale->setMinBorderDist( 0, 0 );
QwtPlotLayout *layout = plot()->plotLayout();
for ( int axis = 0; axis < QwtAxis::PosCount; axis++ )
layout->setAlignCanvasToScale( axis, d_alignCanvasToScales );
d_inZoom = false;
}
}
else
{
if ( !d_inZoom )
{
/*
We set a minimum border distance.
Otherwise the canvas size changes when scrolling,
between situations where the major ticks are at
the canvas borders (requiring extra space for the label)
and situations where all labels can be painted below/top
or left/right of the canvas.
*/
int start, end;
xScale->getBorderDistHint( start, end );
xScale->setMinBorderDist( start, end );
yScale->getBorderDistHint( start, end );
yScale->setMinBorderDist( start, end );
QwtPlotLayout *layout = plot()->plotLayout();
for ( int axis = 0; axis < QwtAxis::PosCount; axis++ )
{
d_alignCanvasToScales[axis] =
layout->alignCanvasToScale( axis );
}
layout->setAlignCanvasToScales( false );
d_inZoom = true;
}
}
QwtPlotZoomer::rescale();
updateScrollBars();
}
void ScrollZoomer::rescale()
{
QwtScaleWidget *xScale = plot()->axisWidget(xAxis());
QwtScaleWidget *yScale = plot()->axisWidget(yAxis());
if ( zoomRectIndex() <= 0 )
{
if ( d_inZoom )
{
xScale->setMinBorderDist(0, 0);
yScale->setMinBorderDist(0, 0);
d_inZoom = false;
}
}
else
{
if ( !d_inZoom )
{
/*
We set a minimum border distance.
Otherwise the canvas size changes when scrolling,
between situations where the major ticks are at
the canvas borders (requiring extra space for the label)
and situations where all labels can be painted below/top
or left/right of the canvas.
*/
int start, end;
xScale->getBorderDistHint(start, end);
xScale->setMinBorderDist(start, end);
yScale->getBorderDistHint(start, end);
yScale->setMinBorderDist(start, end);
d_inZoom = false;
}
}
QwtPlotZoomer::rescale();
updateScrollBars();
}
// Init X axis.
void DataPlot::initAxisX()
{
//QwtText xTitle("System Uptime [h:m:s]");
//xTitle.setFont(QFont("Ubuntu", 10));
//setAxisTitle(QwtPlot::xBottom, xTitle);
setAxisScaleDraw(QwtPlot::xBottom,new TimeScaleDraw(upTime()));
setAxisScale(QwtPlot::xBottom, 0, PLOT_SIZE );
setAxisLabelRotation(QwtPlot::xBottom, -50.0);
setAxisLabelAlignment(QwtPlot::xBottom, Qt::AlignLeft | Qt::AlignBottom);
QwtScaleWidget *scaleWidget = axisWidget(QwtPlot::xBottom);
const int fmh = QFontMetrics(scaleWidget->font()).height();
scaleWidget->setMinBorderDist(0, fmh / 2);
}
CpuPlot::CpuPlot( QWidget *parent ):
QwtPlot( parent ),
dataCount( 0 ) {
setAutoReplot( false );
QwtPlotCanvas *canvas = new QwtPlotCanvas();
canvas->setBorderRadius( 10 );
setCanvas( canvas );
plotLayout()->setAlignCanvasToScales( true );
QwtLegend *legend = new QwtLegend;
legend->setDefaultItemMode( QwtLegendData::Checkable );
insertLegend( legend, QwtPlot::RightLegend );
setAxisTitle( QwtPlot::xBottom, "System Uptime [h:m:s]" );
setAxisScaleDraw( QwtPlot::xBottom,
new TimeScaleDraw( cpuStat.upTime() ) );
setAxisScale( QwtPlot::xBottom, 0, HISTORY );
//setAxisLabelRotation( QwtPlot::xBottom, -50.0 );
setAxisLabelRotation( QwtPlot::xBottom, 0.0 );
setAxisLabelAlignment( QwtPlot::xBottom, Qt::AlignLeft | Qt::AlignBottom );
/*
In situations, when there is a label at the most right position of the
scale, additional space is needed to display the overlapping part
of the label would be taken by reducing the width of scale and canvas.
To avoid this "jumping canvas" effect, we add a permanent margin.
We don't need to do the same for the left border, because there
is enough space for the overlapping label below the left scale.
*/
QwtScaleWidget *scaleWidget = axisWidget( QwtPlot::xBottom );
const int fmh = QFontMetrics( scaleWidget->font() ).height();
scaleWidget->setMinBorderDist( 0, fmh / 2 );
setAxisTitle( QwtPlot::yLeft, "Cpu Usage [%]" );
setAxisScale( QwtPlot::yLeft, 0, 100 );
//attach方法将元素关联到qwtplot空间上
Background *bg = new Background();
bg->attach( this );
CpuPieMarker *pie = new CpuPieMarker();
pie->attach( this );
CpuCurve *curve;
curve = new CpuCurve( "System" );
curve->setColor( Qt::red );
curve->attach( this );
data[System].curve = curve;
curve = new CpuCurve( "User" );
curve->setColor( Qt::blue );
curve->setZ( curve->z() - 1 );
curve->attach( this );
data[User].curve = curve;
curve = new CpuCurve( "Total" );
curve->setColor( Qt::black );
curve->setZ( curve->z() - 2 );
curve->attach( this );
data[Total].curve = curve;
curve = new CpuCurve( "Idle" );
curve->setColor( Qt::darkCyan );
curve->setZ( curve->z() - 3 );
curve->attach( this );
data[Idle].curve = curve;
showCurve( data[System].curve, true );
showCurve( data[User].curve, true );
showCurve( data[Total].curve, false );
showCurve( data[Idle].curve, false );
for ( int i = 0; i < HISTORY; i++ )
timeData[HISTORY - 1 - i] = i;
( void )startTimer( 1000 ); // 1 second
connect( legend, SIGNAL( checked( const QVariant &, bool, int ) ),
SLOT( legendChecked( const QVariant &, bool ) ) );
}
//---------------------------------------------------------------------------
JrkPlotDialog::JrkPlotDialog(jrk_variables *indata, jrk_pid_variables *pid_indata, QWidget *parent) :
QDialog(parent),
ui(new Ui::JrkPlotDialog)
{
int i;
ui->setupUi(this);
setLayout(ui->mainLayout);
interval(200);
history(10);
setSamples();
data_ptr = indata;
pid_data_ptr = pid_indata;
timeData = (double *) malloc(SAMPLES * sizeof(double));
reset();
ui->jrkPlot->setAutoReplot(false);
ui->jrkPlot->canvas()->setBorderRadius(0);
ui->jrkPlot->plotLayout()->setAlignCanvasToScales(true);
ui->jrkPlot->setCanvasBackground(Qt::white);
QwtLegend *legend = new QwtLegend;
legend->setItemMode(QwtLegend::CheckableItem);
ui->jrkPlot->insertLegend(legend, QwtPlot::RightLegend);
ui->jrkPlot->setAxisTitle(QwtPlot::xBottom, "Seconds");
ui->jrkPlot->setAxisScale(QwtPlot::xBottom, timeData[0], timeData[SAMPLES - 1]);
// ui->jrkPlot->setAxisLabelRotation( QwtPlot::xBottom, -50.0 );
ui->jrkPlot->setAxisLabelAlignment( QwtPlot::xBottom, Qt::AlignLeft | Qt::AlignBottom );
QwtScaleWidget *scaleWidget = ui->jrkPlot->axisWidget(QwtPlot::xBottom);
i = QFontMetrics(scaleWidget->font()).height();
scaleWidget->setMinBorderDist(0, i / 2);
ui->jrkPlot->setAxisTitle(QwtPlot::yLeft, "%");
ui->jrkPlot->setAxisScale(QwtPlot::yLeft, -100, 100);
// picker, panner, zoomer
plot_picker = new QwtPlotPicker(QwtPlot::xBottom, QwtPlot::yLeft,
QwtPlotPicker::CrossRubberBand, QwtPicker::AlwaysOn,
ui->jrkPlot->canvas());
#if 0
plot_picker->setStateMachine(new QwtPickerDragPointMachine());
plot_picker->setRubberBandPen(QColor(Qt::black));
plot_picker->setRubberBand(QwtPicker::CrossRubberBand );
#endif
plot_picker->setTrackerPen(QColor(Qt::black));
// panning with the left mouse button
plot_panner = new QwtPlotPanner(ui->jrkPlot->canvas());
plot_panner->setUpdatesEnabled(true);
// zoom in/out with the wheel
plot_zoomer = new QwtPlotMagnifier(ui->jrkPlot->canvas());
// grid
QwtPlotGrid *grid = new QwtPlotGrid;
grid->enableXMin( true );
grid->setMajPen(QPen(Qt::black, 0, Qt::DotLine));
grid->setMinPen(QPen(Qt::black, 0, Qt::DotLine));
grid->attach(ui->jrkPlot);
// curves, scale is in %
createCurve("Input", Qt::gray, false, 4095);
createCurve("Target", Qt::blue, false, 4095);
createCurve("Feedback", Qt::darkBlue, false, 4095);
createCurve("Scaled feedback", Qt::magenta, false, 4095);
createCurve("Error", Qt::red, true, 4095);
createCurve("Integral", Qt::darkGreen, false, 1000);
createCurve("Derivative", Qt::yellow, false, 1000);
createCurve("Duty cycle target", Qt::darkCyan, false, 0600);
createCurve("Duty cycle", Qt::darkRed, false, 0600);
createCurve("Current", Qt::black, true, 0050);
plot_timer = new QTimer(this);
plot_timer->setInterval(INTERVAL);
connect(plot_timer, SIGNAL(timeout()), this, SLOT(onUpdateGraph()));
connect(ui->jrkPlot, SIGNAL(legendChecked(QwtPlotItem *, bool)),
SLOT(showCurve(QwtPlotItem *, bool)));
#if 0
connect(plot_picker, SIGNAL(moved(const QPoint &)),
SLOT(picker_moved(const QPoint &)));
connect(plot_picker, SIGNAL(selected(const QPolygon &)),
SLOT(picker_selected(const QPolygon &)));
#endif
connect(this, SIGNAL(finished(int)), this, SLOT(onFinished(int)));
// plot_timer->start();
}
AmpPlot::AmpPlot(QwtPlot *plot)
{
//TODO
// _picker = new QwtPicker(canvas());
// _picker->setStateMachine(new QwtPickerDragRectMachine());
// _picker->setTrackerMode(QwtPicker::ActiveOnly);
// _picker->setRubberBand(QwtPicker::RectRubberBand);
_plot = plot;
_panner = new QwtPlotPanner(_plot->canvas()); //Panning with the mouse
_panner->setOrientations(Qt::Horizontal);
//connect(_panner, SIGNAL(moved(int,int)), this, SLOT(pannerMoved(int,int)));
_magnifier = new QwtPlotMagnifier(_plot->canvas()); //Zooming with the wheel
_plot->canvas()->setBorderRadius(5);
_plot->setCanvasBackground(Qt::white);
_plot->plotLayout()->setAlignCanvasToScales(true);
QwtLegend *legend = new QwtLegend;
_plot->insertLegend(legend,QwtPlot::RightLegend);
legend->setItemMode(QwtLegend::CheckableItem);
connect(_plot,SIGNAL(legendChecked(QwtPlotItem*,bool)),SLOT(showCurve(QwtPlotItem*,bool)));
_xMax = DEFAULT_X_MAX;
_yMax = DEFAULT_Y_MAX;
_plot->setAxisTitle(QwtPlot::xBottom, "ms");
_plot->setAxisScale(QwtPlot::xBottom,0,_xMax);
QwtScaleWidget *scaleWidget = _plot->axisWidget(QwtPlot::xBottom);
const int fmh = QFontMetrics(scaleWidget->font()).height();
scaleWidget->setMinBorderDist(0, fmh*2);
_plot->setAxisTitle(QwtPlot::yLeft,"mA");
_plot->setAxisAutoScale(QwtPlot::yLeft, true);
_dataCurve = new QwtPlotCurve("mA");
_dataCurve->attach(_plot);
_dataCurve->setRenderHint(QwtPlotItem::RenderAntialiased);
_dataCurve->setVisible(_plot);
_meanCurve = new QwtPlotCurve("avg mean");
_meanCurve->attach(_plot);
_meanCurve->setRenderHint(QwtPlotItem::RenderAntialiased);
_meanCurve->setPen(QPen(Qt::red));
_maxCurve = new QwtPlotCurve("max");
_maxCurve->attach(_plot);
_maxCurve->setRenderHint(QwtPlotItem::RenderAntialiased);
_maxCurve->setPen(QPen(Qt::darkMagenta));
_currentMeanCurve = new QwtPlotCurve("mean");
_currentMeanCurve->attach(_plot);
_currentMeanCurve->setRenderHint(QwtPlotItem::RenderAntialiased);
_currentMeanCurve->setPen(QPen(Qt::blue));
showCurve(_dataCurve, true);
showCurve(_meanCurve, false);
showCurve(_maxCurve, false);
showCurve(_currentMeanCurve, true);
_time = new QTime();
_time->start();
_meanData.append(0.0);
_meanTime.append(0.0);
_meanData.append(0.0);
_meanTime.append(0.0);
_maxData.append(0.0);
_maxTime.append(0.0);
_maxData.append(0.0);
_maxTime.append(0.0);
_pauseTime = 0;
_dataSource = NULL;
_loadedCurve = NULL;
}
QwtGrapher::QwtGrapher(QWidget* parent):
QwtPlot(parent) {
m_values = new TwoDArray<double>(3,100);
plotLayout()->setAlignCanvasToScales(true);
QwtLegend *legend = new QwtLegend;
legend->setItemMode(QwtLegend::CheckableItem);
insertLegend(legend, QwtPlot::RightLegend);
setAxisTitle(QwtPlot::xBottom, " FitnessCases");
/*setAxisScaleDraw(QwtPlot::xBottom,
new TimeScaleDraw(cpuStat.upTime()));
setAxisScale(QwtPlot::xBottom, 0, HISTORY);
setAxisLabelRotation(QwtPlot::xBottom, -50.0);
setAxisLabelAlignment(QwtPlot::xBottom, Qt::AlignLeft | Qt::AlignBottom);
*/
/*
In situations, when there is a label at the most right position of the
scale, additional space is needed to display the overlapping part
of the label would be taken by reducing the width of scale and canvas.
To avoid this "jumping canvas" effect, we add a permanent margin.
We don't need to do the same for the left border, because there
is enough space for the overlapping label below the left scale.
*/
QwtScaleWidget *scaleWidget = axisWidget(QwtPlot::xBottom);
const int fmh = QFontMetrics(scaleWidget->font()).height();
scaleWidget->setMinBorderDist(0, fmh / 2);
setAxisTitle(QwtPlot::yLeft, "Ouput") ;
//setAxisScale(QwtPlot::yLeft, 0, 100);
// Background *bg = new Background();
//bg->attach(this);
/*CpuPieMarker *pie = new CpuPieMarker();
pie->attach(this);
*/
QwtPlotCurve *curve;
curve = new QwtPlotCurve("Best");
curve->setPen(QColor(Qt::green));
curve->attach(this);
m_curves[0] = curve;
curve = new QwtPlotCurve("Average");
curve->setPen(QColor(Qt::blue));
curve->setZ(curve->z() - 1);
curve->attach(this);
m_curves[1] = curve;
curve = new QwtPlotCurve("Worst");
curve->setPen(QColor(Qt::black));
curve->setZ(curve->z() - 2);
curve->attach(this);
m_curves[2] = curve;
showCurve(m_curves[0], true);
showCurve(m_curves[1], true);
showCurve(m_curves[2], true);
connect(this, SIGNAL(legendChecked(QwtPlotItem *, bool)),
SLOT(showCurve(QwtPlotItem *, bool)));
}
