void Reportes::inicializarGraficoAngulos()
{
graficoAngulos->plotLayout()->clear();
graficoAngulos->clearItems();
graficoAngulos->clearGraphs();
//Elementos del grafico
QCPAxisRect *topAxisRect = new QCPAxisRect(graficoAngulos);
QCPAxisRect *bottomAxisRect = new QCPAxisRect(graficoAngulos);
bottomAxisRect->axis(QCPAxis::atLeft)->setRange(0,2);
bottomAxisRect->axis(QCPAxis::atBottom)->setRange(0,2);
QCPPlotTitle *tituloX=new QCPPlotTitle(graficoAngulos,"Grafico Angulo Medio-Lateral vs Tiempo");
QCPPlotTitle *tituloY=new QCPPlotTitle(graficoAngulos,"Grafico Angulo Antero-Posterior vs Tiempo");
//Se posicionan los layouts
graficoAngulos->plotLayout()->addElement(0, 0, tituloX);
graficoAngulos->plotLayout()->addElement(1, 0, topAxisRect);
graficoAngulos->plotLayout()->addElement(2, 0, tituloY);
graficoAngulos->plotLayout()->addElement(3, 0, bottomAxisRect);
//create and configure plottables:
graficoAnguloX = graficoAngulos->addGraph(topAxisRect->axis(QCPAxis::atBottom), topAxisRect->axis(QCPAxis::atLeft));
graficoAnguloY = graficoAngulos->addGraph(bottomAxisRect->axis(QCPAxis::atBottom), bottomAxisRect->axis(QCPAxis::atLeft));
lineaIzqAnguloX=new QCPItemLine(graficoAngulos);
agregarQCPItemLine(lineaIzqAnguloX,graficoAngulos,topAxisRect);
lineaDerAnguloX=new QCPItemLine(graficoAngulos);
agregarQCPItemLine(lineaDerAnguloX,graficoAngulos,topAxisRect);
lineaIzqAnguloY=new QCPItemLine(graficoAngulos);
agregarQCPItemLine(lineaIzqAnguloY,graficoAngulos,bottomAxisRect);
lineaDerAnguloY=new QCPItemLine(graficoAngulos);
agregarQCPItemLine(lineaDerAnguloY,graficoAngulos,bottomAxisRect);
//Colores de la Linea
graficoAnguloX->setPen(QPen(QColor(71, 71, 194), 2));
graficoAnguloY->setPen(QPen(QColor(153, 102, 51), 2));
//Labels de los ejes
topAxisRect->axis(QCPAxis::atLeft)->setLabel("Angulo (grados)");
topAxisRect->axis(QCPAxis::atBottom)->setLabel("Tiempo (segundos)");
bottomAxisRect->axis(QCPAxis::atLeft)->setLabel("Angulo (grados)");
bottomAxisRect->axis(QCPAxis::atBottom)->setLabel("Tiempo (segundos)");
//Se rescalan los ejes para el autoajuste
graficoAnguloX->rescaleAxes();
graficoAnguloY->rescaleAxes();
graficoAngulos->setInteractions(QCP::iRangeDrag|QCP::iRangeZoom);
}
DrawFinancialChart::DrawFinancialChart(QWidget *parent) :
QCustomPlot(parent)
{
resize(600,400);
legend->setVisible(true);
// generate two sets of random walk data (one for candlestick and one for ohlc chart):
int n = 500;
QVector<double> time(n), value1(n), value2(n);
QDateTime start = QDateTime(QDate(2014, 6, 11));
start.setTimeSpec(Qt::UTC);
double startTime = start.toTime_t();
double binSize = 3600*24; // bin data in 1 day intervals
time[0] = startTime;
value1[0] = 60;
value2[0] = 20;
qsrand(9);
for (int i=1; i<n; ++i)
{
time[i] = startTime + 3600*i;
value1[i] = value1[i-1] + (qrand()/(double)RAND_MAX-0.5)*10;
value2[i] = value2[i-1] + (qrand()/(double)RAND_MAX-0.5)*3;
}
// create candlestick chart:
QCPFinancial *candlesticks = new QCPFinancial(xAxis, yAxis);
addPlottable(candlesticks);
QCPFinancialDataMap data1 = QCPFinancial::timeSeriesToOhlc(time, value1, binSize, startTime);
candlesticks->setName("Candlestick");
candlesticks->setChartStyle(QCPFinancial::csCandlestick);
candlesticks->setData(&data1, true);
candlesticks->setWidth(binSize*0.9);
candlesticks->setTwoColored(true);
candlesticks->setBrushPositive(QColor(245, 245, 245));
candlesticks->setBrushNegative(QColor(0, 0, 0));
candlesticks->setPenPositive(QPen(QColor(0, 0, 0)));
candlesticks->setPenNegative(QPen(QColor(0, 0, 0)));
// create ohlc chart:
QCPFinancial *ohlc = new QCPFinancial(xAxis, yAxis);
addPlottable(ohlc);
QCPFinancialDataMap data2 = QCPFinancial::timeSeriesToOhlc(time, value2, binSize/3.0, startTime); // divide binSize by 3 just to make the ohlc bars a bit denser
ohlc->setName("OHLC");
ohlc->setChartStyle(QCPFinancial::csOhlc);
ohlc->setData(&data2, true);
ohlc->setWidth(binSize*0.2);
ohlc->setTwoColored(true);
// create bottom axis rect for volume bar chart:
QCPAxisRect *volumeAxisRect = new QCPAxisRect(this);
plotLayout()->addElement(1, 0, volumeAxisRect);
volumeAxisRect->setMaximumSize(QSize(QWIDGETSIZE_MAX, 100));
volumeAxisRect->axis(QCPAxis::atBottom)->setLayer("axes");
volumeAxisRect->axis(QCPAxis::atBottom)->grid()->setLayer("grid");
// bring bottom and main axis rect closer together:
plotLayout()->setRowSpacing(0);
volumeAxisRect->setAutoMargins(QCP::msLeft|QCP::msRight|QCP::msBottom);
volumeAxisRect->setMargins(QMargins(0, 0, 0, 0));
// create two bar plottables, for positive (green) and negative (red) volume bars:
QCPBars *volumePos = new QCPBars(volumeAxisRect->axis(QCPAxis::atBottom), volumeAxisRect->axis(QCPAxis::atLeft));
QCPBars *volumeNeg = new QCPBars(volumeAxisRect->axis(QCPAxis::atBottom), volumeAxisRect->axis(QCPAxis::atLeft));
for (int i=0; i<n/5; ++i)
{
int v = qrand()%20000+qrand()%20000+qrand()%20000-10000*3;
(v < 0 ? volumeNeg : volumePos)->addData(startTime+3600*5.0*i, qAbs(v)); // add data to either volumeNeg or volumePos, depending on sign of v
}
setAutoAddPlottableToLegend(false);
addPlottable(volumePos);
addPlottable(volumeNeg);
volumePos->setWidth(3600*4);
volumePos->setPen(Qt::NoPen);
volumePos->setBrush(QColor(100, 180, 110));
volumeNeg->setWidth(3600*4);
volumeNeg->setPen(Qt::NoPen);
volumeNeg->setBrush(QColor(180, 90, 90));
// interconnect x axis ranges of main and bottom axis rects:
connect(xAxis, SIGNAL(rangeChanged(QCPRange)), volumeAxisRect->axis(QCPAxis::atBottom), SLOT(setRange(QCPRange)));
connect(volumeAxisRect->axis(QCPAxis::atBottom), SIGNAL(rangeChanged(QCPRange)), xAxis, SLOT(setRange(QCPRange)));
// configure axes of both main and bottom axis rect:
volumeAxisRect->axis(QCPAxis::atBottom)->setAutoTickStep(false);
volumeAxisRect->axis(QCPAxis::atBottom)->setTickStep(3600*24*4); // 4 day tickstep
volumeAxisRect->axis(QCPAxis::atBottom)->setTickLabelType(QCPAxis::ltDateTime);
volumeAxisRect->axis(QCPAxis::atBottom)->setDateTimeSpec(Qt::UTC);
volumeAxisRect->axis(QCPAxis::atBottom)->setDateTimeFormat("dd. MMM");
volumeAxisRect->axis(QCPAxis::atBottom)->setTickLabelRotation(15);
volumeAxisRect->axis(QCPAxis::atLeft)->setAutoTickCount(3);
xAxis->setBasePen(Qt::NoPen);
xAxis->setTickLabels(false);
xAxis->setTicks(false); // only want vertical grid in main axis rect, so hide xAxis backbone, ticks, and labels
xAxis->setAutoTickStep(false);
xAxis->setTickStep(3600*24*4); // 4 day tickstep
rescaleAxes();
xAxis->scaleRange(1.025, xAxis->range().center());
yAxis->scaleRange(1.1, yAxis->range().center());
// make axis rects' left side line up:
QCPMarginGroup *group = new QCPMarginGroup(this);
axisRect()->setMarginGroup(QCP::msLeft|QCP::msRight, group);
volumeAxisRect->setMarginGroup(QCP::msLeft|QCP::msRight, group);
}
void Reportes::inicializarGraficoMuestras()
{
graficoMuestras->plotLayout()->clear(); // let's start from scratch and remove the default axis rect
graficoMuestras->clearItems();
graficoMuestras->clearGraphs();
//Se crean los LAYOUTS principales
QCPLayoutGrid *layoutAcelerometro = new QCPLayoutGrid;
QCPLayoutGrid *layoutGiroscopio = new QCPLayoutGrid;
//Se crean los titulos
QCPPlotTitle *tituloAcelerometro = new QCPPlotTitle(graficoMuestras, "Gráficos Aceleración X Y Z vs Tiempo");
QCPPlotTitle *tituloGiroscopio = new QCPPlotTitle(graficoMuestras, "Gráficos Velocidad Angular X Y Z vs Tiempo");
//Se añaden los layouts principales y los titulos
graficoMuestras->plotLayout()->addElement(0, 0, tituloAcelerometro);
graficoMuestras->plotLayout()->addElement(1, 0, layoutAcelerometro);
graficoMuestras->plotLayout()->addElement(2, 0, tituloGiroscopio);
graficoMuestras->plotLayout()->addElement(3, 0, layoutGiroscopio);
// Se crean los sublayouts del acelerometro
QCPAxisRect *leftAxisRectAcelerometro = new QCPAxisRect(graficoMuestras);
QCPAxisRect *centerAxisRectAcelerometro = new QCPAxisRect(graficoMuestras);
QCPAxisRect *rightAxisRectAcelerometro = new QCPAxisRect(graficoMuestras);
//Se agregan al layout principal
layoutAcelerometro->addElement(0, 0, leftAxisRectAcelerometro);
layoutAcelerometro->addElement(0, 1, centerAxisRectAcelerometro);
layoutAcelerometro->addElement(0, 2, rightAxisRectAcelerometro);
//Se crean los sublayouts del giroscopio
QCPAxisRect *leftAxisRectGiroscopio = new QCPAxisRect(graficoMuestras);
QCPAxisRect *centerAxisRectGiroscopio = new QCPAxisRect(graficoMuestras);
QCPAxisRect *rightAxisRectGiroscopio = new QCPAxisRect(graficoMuestras);
//Se agregan al layout principal
layoutGiroscopio->addElement(0, 0, leftAxisRectGiroscopio);
layoutGiroscopio->addElement(0, 1, centerAxisRectGiroscopio);
layoutGiroscopio->addElement(0, 2, rightAxisRectGiroscopio);
// create and configure plottables: Acelerometro
graficoAcX = graficoMuestras->addGraph(leftAxisRectAcelerometro->axis(QCPAxis::atBottom), leftAxisRectAcelerometro->axis(QCPAxis::atLeft));
graficoAcY = graficoMuestras->addGraph(centerAxisRectAcelerometro->axis(QCPAxis::atBottom), centerAxisRectAcelerometro->axis(QCPAxis::atLeft));
graficoAcZ = graficoMuestras->addGraph(rightAxisRectAcelerometro->axis(QCPAxis::atBottom), rightAxisRectAcelerometro->axis(QCPAxis::atLeft));
// create and configure plottables: Giroscopio
graficoGyX = graficoMuestras->addGraph(leftAxisRectGiroscopio->axis(QCPAxis::atBottom), leftAxisRectGiroscopio->axis(QCPAxis::atLeft));
graficoGyY = graficoMuestras->addGraph(centerAxisRectGiroscopio->axis(QCPAxis::atBottom), centerAxisRectGiroscopio->axis(QCPAxis::atLeft));
graficoGyZ = graficoMuestras->addGraph(rightAxisRectGiroscopio->axis(QCPAxis::atBottom), rightAxisRectGiroscopio->axis(QCPAxis::atLeft));
// Lineas para el analisis
lineaIzqAcX=new QCPItemLine(graficoMuestras);
agregarQCPItemLine(lineaIzqAcX,graficoMuestras,leftAxisRectAcelerometro);
lineaDerAcX=new QCPItemLine(graficoMuestras);
agregarQCPItemLine(lineaDerAcX,graficoMuestras,leftAxisRectAcelerometro);
lineaIzqAcY=new QCPItemLine(graficoMuestras);
agregarQCPItemLine(lineaIzqAcY,graficoMuestras,centerAxisRectAcelerometro);
lineaDerAcY=new QCPItemLine(graficoMuestras);
agregarQCPItemLine(lineaDerAcY,graficoMuestras,centerAxisRectAcelerometro);
lineaIzqAcZ=new QCPItemLine(graficoMuestras);
agregarQCPItemLine(lineaIzqAcZ,graficoMuestras,rightAxisRectAcelerometro);
lineaDerAcZ=new QCPItemLine(graficoMuestras);
agregarQCPItemLine(lineaDerAcZ,graficoMuestras,rightAxisRectAcelerometro);
lineaIzqGyX=new QCPItemLine(graficoMuestras);
agregarQCPItemLine(lineaIzqGyX,graficoMuestras,leftAxisRectGiroscopio);
lineaDerGyX=new QCPItemLine(graficoMuestras);
agregarQCPItemLine(lineaDerGyX,graficoMuestras,leftAxisRectGiroscopio);
lineaIzqGyY=new QCPItemLine(graficoMuestras);
agregarQCPItemLine(lineaIzqGyY,graficoMuestras,centerAxisRectGiroscopio);
lineaDerGyY=new QCPItemLine(graficoMuestras);
agregarQCPItemLine(lineaDerGyY,graficoMuestras,centerAxisRectGiroscopio);
lineaIzqGyZ=new QCPItemLine(graficoMuestras);
agregarQCPItemLine(lineaIzqGyZ,graficoMuestras,rightAxisRectGiroscopio);
lineaDerGyZ=new QCPItemLine(graficoMuestras);
agregarQCPItemLine(lineaDerGyZ,graficoMuestras,rightAxisRectGiroscopio);
//Estilo del lapiz para la linea
graficoAcX->setPen(QPen(Qt::blue));
graficoAcY->setPen(QPen(Qt::blue));
graficoAcZ->setPen(QPen(Qt::blue));
graficoGyX->setPen(QPen(QColor(153, 102, 51), 2));
graficoGyY->setPen(QPen(QColor(153, 102, 51), 2));
graficoGyZ->setPen(QPen(QColor(153, 102, 51), 2));
//Labels de los ejes: Acelerometro
leftAxisRectAcelerometro->axis(QCPAxis::atLeft)->setLabel("Aceleracion Eje X (G)");
leftAxisRectAcelerometro->axis(QCPAxis::atBottom)->setLabel("Tiempo (segundos)");
centerAxisRectAcelerometro->axis(QCPAxis::atLeft)->setLabel("Aceleracion Eje Y (G)");
centerAxisRectAcelerometro->axis(QCPAxis::atBottom)->setLabel("Tiempo (segundos)");
rightAxisRectAcelerometro->axis(QCPAxis::atLeft)->setLabel("Aceleracion Eje Z (G)");
rightAxisRectAcelerometro->axis(QCPAxis::atBottom)->setLabel("Tiempo (segundos)");
//Labels de los ejes: Giroscopio
leftAxisRectGiroscopio->axis(QCPAxis::atLeft)->setLabel("Velocidad Angular Eje X (º/segundos)");
leftAxisRectGiroscopio->axis(QCPAxis::atBottom)->setLabel("Tiempo (segundos)");
centerAxisRectGiroscopio->axis(QCPAxis::atLeft)->setLabel("Velocidad Angular Eje Y (º/segundos)");
centerAxisRectGiroscopio->axis(QCPAxis::atBottom)->setLabel("Tiempo (segundos)");
rightAxisRectGiroscopio->axis(QCPAxis::atLeft)->setLabel("Velocaidad Angular Eje Z (º/segundos)");
rightAxisRectGiroscopio->axis(QCPAxis::atBottom)->setLabel("Tiempo (segundos)");
//Agregamos interactividad
graficoMuestras->setInteractions(QCP::iRangeDrag|QCP::iRangeZoom);
//grafico->replot(); //Se redibuja para actualizar la vista
}
void MainWindow::setupItemTracerTest_MyTest_2(QCustomPlot *customPlot)
{
QCPAxisRect* pAxisRectTop = NULL;
QCPAxisRect* pAxisRectBottom = NULL;
QCPLayoutGrid *pLayoutGrid = NULL;
QCPMarginGroup *pMarginGroup = NULL;
QCPItemTracerCrossHair *pTracerTop = NULL;
QCPItemTracerCrossHair *pTracerBottom = NULL;
CMidSubDrawHelper* m_pMidSubDrawHelper = NULL;
CHistoryDataManager* pHistoryDataManager = NULL;
customPlot->clearGraphs();
customPlot->plotLayout()->clear(); // clear default axis rect so we can start from scratch
pAxisRectTop = new QCPAxisRect(customPlot);
pAxisRectTop->setupFullAxesBox(true);
pAxisRectTop->axis(QCPAxis::atLeft)->setLabel(QObject::tr("Y-value"));
pAxisRectTop->axis(QCPAxis::atBottom)->setLabel(QObject::tr("X-time"));
pAxisRectTop->axis(QCPAxis::atBottom)->setTickLabelType(QCPAxis::ltDateTime);
pAxisRectTop->axis(QCPAxis::atBottom)->setDateTimeFormat(DEF_STRING_FORMAT_TIME.c_str());
pAxisRectBottom = new QCPAxisRect(customPlot);
pAxisRectBottom->setupFullAxesBox(true);
pAxisRectBottom->axis(QCPAxis::atLeft)->setLabel(QObject::tr("Y-value"));
pAxisRectBottom->axis(QCPAxis::atBottom)->setLabel(QObject::tr("X-time"));
pAxisRectBottom->axis(QCPAxis::atBottom)->setTickLabelType(QCPAxis::ltDateTime);
pAxisRectBottom->axis(QCPAxis::atBottom)->setDateTimeFormat(DEF_STRING_FORMAT_TIME.c_str());//("yyyy-MM-dd hh-mm-ss");
customPlot->plotLayout()->addElement(0, 0, pAxisRectTop); // insert axis rect in first row
customPlot->plotLayout()->addElement(1, 0, pAxisRectBottom); // insert axis rect in first row
pLayoutGrid = customPlot->plotLayout();
pMarginGroup = new QCPMarginGroup(customPlot);
pLayoutGrid->element(0, 0)->setMarginGroup(QCP::msAll, pMarginGroup);
pLayoutGrid->element(1, 0)->setMarginGroup(QCP::msAll, pMarginGroup);
m_pMidSubDrawHelper = new CMidSubDrawHelper();
pHistoryDataManager = new CHistoryDataManager();
m_pMidSubDrawHelper->drawHistoryBarData(pHistoryDataManager, customPlot, pAxisRectTop);
m_pMidSubDrawHelper->drawHistoryVolumeData(pHistoryDataManager, customPlot, pAxisRectBottom);
//setupItemTracerTest_MyTest_addGrap(customPlot, pAxisRectTop);
//setupItemTracerTest_MyTest_addGrap(customPlot, pAxisRectBottom);
pTracerTop = NULL;
pTracerTop = new QCPItemTracerCrossHair(customPlot);
customPlot->addItem(pTracerTop);
pTracerTop->setTracerAxisRect(pAxisRectTop);
pTracerTop->setStyle(QCPItemTracerCrossHair::tsCrosshair);
pTracerTop->setShowLeft(QCPAxis::ltNumber, true, QString(""));
pTracerTop->setShowBottom(QCPAxis::ltDateTime, true, QString(DEF_STRING_FORMAT_TIME.c_str()));
m_pQCPItemTracerCrossHairTop = pTracerTop;
pTracerBottom = NULL;
pTracerBottom = new QCPItemTracerCrossHair(customPlot);
customPlot->addItem(pTracerBottom);
pTracerBottom->setTracerAxisRect(pAxisRectBottom);
pTracerBottom->setStyle(QCPItemTracerCrossHair::tsCrosshair);
pTracerBottom->setShowLeft(QCPAxis::ltNumber, true, QString(""));
pTracerBottom->setShowBottom(QCPAxis::ltDateTime, true, QString(DEF_STRING_FORMAT_TIME.c_str()));
m_pQCPItemTracerCrossHairBottom = pTracerBottom;
connect(customPlot, SIGNAL(mouseMove(QMouseEvent*)), this, SLOT(QCPItemTracerCrossHairMouseMove(QMouseEvent*)));
//customPlot->rescaleAxes();
customPlot->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom);
customPlot->replot();//draw again
if (NULL != m_pMidSubDrawHelper)
{
delete m_pMidSubDrawHelper;
m_pMidSubDrawHelper = NULL;
}
if (NULL != pHistoryDataManager)
{
delete pHistoryDataManager;
pHistoryDataManager = NULL;
}
}
void MainWindow::setupItemTracerTest_MyTest_1(QCustomPlot *customPlot)
{
QCPAxisRect* pAxisRectTop = NULL;
QCPAxisRect* pAxisRectBottom = NULL;
QCPLayoutGrid *pLayoutGrid = NULL;
QCPMarginGroup *pMarginGroup = NULL;
QCPItemTracerCrossHair *pTracerTop = NULL;
QCPItemTracerCrossHair *pTracerBottom = NULL;
customPlot->clearGraphs();
customPlot->plotLayout()->clear(); // clear default axis rect so we can start from scratch
pAxisRectTop = new QCPAxisRect(customPlot);
pAxisRectTop->setupFullAxesBox(true);
//pAxisRectTop->axis(QCPAxis::atLeft)->setLabel(QObject::tr("Y-value"));
//pAxisRectTop->axis(QCPAxis::atBottom)->setLabel(QObject::tr("X-time"));
//pAxisRectTop->axis(QCPAxis::atBottom)->setTickLabelType(QCPAxis::ltDateTime);
//pAxisRectTop->axis(QCPAxis::atBottom)->setDateTimeFormat("yyyy-MM-dd hh-mm-ss");//DEF_STRING_FORMAT_TIME
pAxisRectBottom = new QCPAxisRect(customPlot);
pAxisRectBottom->setupFullAxesBox(true);
//pAxisRectBottom->axis(QCPAxis::atLeft)->setLabel(QObject::tr("Y-value"));
//pAxisRectBottom->axis(QCPAxis::atBottom)->setLabel(QObject::tr("X-time"));
//pAxisRectBottom->axis(QCPAxis::atBottom)->setTickLabelType(QCPAxis::ltDateTime);
//pAxisRectBottom->axis(QCPAxis::atBottom)->setDateTimeFormat("yyyy-MM-dd hh-mm-ss");//DEF_STRING_FORMAT_TIME
customPlot->plotLayout()->addElement(0, 0, pAxisRectTop); // insert axis rect in first row
customPlot->plotLayout()->addElement(1, 0, pAxisRectBottom); // insert axis rect in first row
pLayoutGrid = customPlot->plotLayout();
pMarginGroup = new QCPMarginGroup(customPlot);
pLayoutGrid->element(0, 0)->setMarginGroup(QCP::msAll, pMarginGroup);
pLayoutGrid->element(1, 0)->setMarginGroup(QCP::msAll, pMarginGroup);
QCPGraph *graph = customPlot->addGraph(pAxisRectTop->axis(QCPAxis::atBottom), pAxisRectTop->axis(QCPAxis::atLeft));
int n = 200;
QVector<double> x(n), y(n);
for (int i=0; i<n; ++i)
{
x[i] = 0.5+i/(double)n*4;
y[i] = qSin(x[i])+1.5;
}
graph->setData(x, y);
pTracerTop = NULL;
pTracerTop = new QCPItemTracerCrossHair(customPlot);
customPlot->addItem(pTracerTop);
pTracerTop->setTracerAxisRect(pAxisRectTop);
pTracerTop->setStyle(QCPItemTracerCrossHair::tsCrosshair);
m_pQCPItemTracerCrossHairTop = pTracerTop;
pTracerBottom = NULL;
pTracerBottom = new QCPItemTracerCrossHair(customPlot);
customPlot->addItem(pTracerBottom);
pTracerBottom->setTracerAxisRect(pAxisRectBottom);
pTracerBottom->setStyle(QCPItemTracerCrossHair::tsCrosshair);
m_pQCPItemTracerCrossHairBottom = pTracerBottom;
connect(customPlot, SIGNAL(mouseMove(QMouseEvent*)), this, SLOT(QCPItemTracerCrossHairMouseMove(QMouseEvent*)));
customPlot->rescaleAxes();
customPlot->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom);
customPlot->replot();//draw again
}