阿尔泰模拟量采集终端

1.效果图

2. Plot控件用的是QCustomPlot

3. 源码

3.1 窗体头文件artusb3100.h

#ifndef ARTUSB3100_H

#define ARTUSB3100_H

#include <QWidget>

#include <iostream>

#include <QTimer>

#include <QQueue>

const int DATALEN = 1000;

//typedef struct{

//    float data[DATALEN];

//} DATABUFF;

using namespace std;

namespace Ui {

class ArtUSB3100;

class ArtUSB3100 : public QWidget

    Q_OBJECT

public:

    explicit ArtUSB3100(QWidget *parent = nullptr);

    ~ArtUSB3100();

private slots:

    void on_pushBtnExit_clicked();

    void on_pushButtonStart_clicked();

    void on_pushButtonStop_clicked();

    void timerOutSlot();

    void timerOutShowSlot();

    void on_comboBoxModel_currentIndexChanged(int index);

    void on_comboBoxChannelName_currentIndexChanged(int index);

    void on_comboBoxInputCfg_currentIndexChanged(int index);

private:

    Ui::ArtUSB3100 *ui;

    vector<float>  m_data;

//    QQueue<DATABUFF> m_dataShow;

    QTimer* m_timerGetData;

    QTimer* m_timerShowData;

    QString m_channelName;

    void drawCurve();

    void getData();

    void initCustomPlot();

};

#endif // ARTUSB3100_H

3.2 窗体实现文件 artusb3100.cpp

#include "artusb3100.h"

#include "ui_artusb3100.h"

#include "conio.h"

#include "ArtDaq/Include/Art_DAQ.h"

#include <QDebug>

static int nshowcount = 0;

static int ncollectcount = 0;

#define ArtDAQErrChk(functionCall) if( ArtDAQFailed(error=(functionCall)) ) goto Error;

ArtUSB3100::ArtUSB3100(QWidget *parent) :

    QWidget(parent),

    ui(new Ui::ArtUSB3100)

    ui->setupUi(this);

    m_channelName = "Dev1/ai0";

    m_timerGetData = new QTimer(this);

    connect(m_timerGetData,SIGNAL(timeout()), this, SLOT(timerOutSlot()));

    m_timerGetData->start(10000);

    m_timerShowData = new QTimer(this);

    connect(m_timerShowData,SIGNAL(timeout()), this, SLOT(timerOutShowSlot()));

    m_timerShowData->start(500);

    int datasize = ui->lineEditSamples->text().toInt();

    m_data.resize(DATALEN * 2);

//    m_dataShow.clear();

    getData();

    initCustomPlot();

ArtUSB3100::~ArtUSB3100()

    delete ui;

    delete m_timerGetData;

    delete m_timerShowData;

void ArtUSB3100::timerOutSlot()

    getData();

void ArtUSB3100::timerOutShowSlot()

    drawCurve();

void ArtUSB3100::on_pushBtnExit_clicked()

    this->close();

void ArtUSB3100::on_pushButtonStart_clicked()

    m_timerGetData->start(10000);

    m_timerShowData->start(500);

void ArtUSB3100::on_pushButtonStop_clicked()

    m_timerGetData->stop();

    m_timerShowData->stop();

void ArtUSB3100::initCustomPlot()

    const int nsamples = DATALEN / 10;

    // add one graphs to show channel data:

    ui->customPlot->addGraph();

    ui->customPlot->graph(0)->setPen(QPen(Qt::blue)); // line color blue for first graph

//    ui->customPlot->graph(0)->setBrush(QBrush(QColor(0, 0, 255, 20))); // first graph will be filled with translucent blue

    // generate some points of data (y0 for first channel, y1 for second channel,....y7 for last channel):

    QVector<double> x(nsamples), y(nsamples);

    // configure right and top axis to show ticks but no labels:

    // (see QCPAxisRect::setupFullAxesBox for a quicker method to do this)

    ui->customPlot->xAxis2->setVisible(true);

    ui->customPlot->xAxis2->setTickLabels(false);

    ui->customPlot->yAxis2->setVisible(true);

    ui->customPlot->yAxis2->setTickLabels(false);

    // make left and bottom axes always transfer their ranges to right and top axes:

    connect(ui->customPlot->xAxis, SIGNAL(rangeChanged(QCPRange)), ui->customPlot->xAxis2, SLOT(setRange(QCPRange)));

    connect(ui->customPlot->yAxis, SIGNAL(rangeChanged(QCPRange)), ui->customPlot->yAxis2, SLOT(setRange(QCPRange)));

//    // pass data points to graphs:

//    ui->customPlot->graph(0)->setData(x, y);

//    // let the ranges scale themselves so graph 0 fits perfectly in the visible area:

//    ui->customPlot->graph(0)->rescaleAxes();

    // Note: we could have also just called customPlot->rescaleAxes(); instead

    // Allow user to drag axis ranges with mouse, zoom with mouse wheel and select graphs by clicking:

    ui->customPlot->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom | QCP::iSelectPlottables);

void ArtUSB3100::drawCurve()

    const int nsamples = DATALEN /10;

    int offset = DATALEN / 20;

    QVector<double> x(nsamples), y(nsamples);

    for (int i=0; i<nsamples; ++i)

        int index = (i + offset * nshowcount) % (DATALEN * 2);

        x[i] = index;

        y[i] = m_data[index];

    nshowcount ++;

    if (nshowcount == 21) nshowcount = 0;

    ui->customPlot->graph(0)->setData(x, y);

    ui->customPlot->graph(0)->rescaleAxes();

    ui->customPlot->replot();

void ArtUSB3100::getData()

    int32       error=0;

    TaskHandle  taskHandle=0;

    int32       read;

    float64     data[1000];

//    DATABUFF tempBuff;

    char        errBuff[2048]={'\0'};

    /*********************************************/

    // ArtDAQ Configure Code

    /*********************************************/

    ArtDAQErrChk (ArtDAQ_CreateTask("",&taskHandle));

    ArtDAQErrChk (ArtDAQ_CreateAIVoltageChan(taskHandle,m_channelName.toLatin1().data(),"",ArtDAQ_Val_Cfg_Default,-10.0,10.0,ArtDAQ_Val_Volts,NULL));

    ArtDAQErrChk (ArtDAQ_CfgSampClkTiming(taskHandle,"",10000.0,ArtDAQ_Val_Rising,ArtDAQ_Val_FiniteSamps,1000));

    /*********************************************/

    // ArtDAQ Start Code

    /*********************************************/

    ArtDAQErrChk (ArtDAQ_StartTask(taskHandle));

    /*********************************************/

    // ArtDAQ Read Code

    /*********************************************/

    ArtDAQErrChk (ArtDAQ_ReadAnalogF64(taskHandle,1000,10.0,ArtDAQ_Val_GroupByChannel,data,1000,&read,NULL));

    for (int i=0; i< 1000; ++i) {

//        m_data[i] = data[i];

        m_data[ncollectcount* 1000 +i] = data[i];

//        tempBuff.data[i] = data[i];

    ncollectcount ++;

    if (ncollectcount == 2) ncollectcount = 0;

//    if(m_dataShow.size() == 4)

//    {

//        m_dataShow.dequeue();

//    }

//    m_dataShow.enqueue(tempBuff);

Error:

    if( ArtDAQFailed(error) )

        ArtDAQ_GetExtendedErrorInfo(errBuff,2048);

    if( taskHandle!=0 ) {

        /*********************************************/

        // ArtDAQ Stop Code

        /*********************************************/

        ArtDAQ_StopTask(taskHandle);

        ArtDAQ_ClearTask(taskHandle);

    if( ArtDAQFailed(error) )

        qDebug() << "ArtDAQ_ Error: " << errBuff << endl;

void ArtUSB3100::on_comboBoxModel_currentIndexChanged(int index)

void ArtUSB3100::on_comboBoxChannelName_currentIndexChanged(int index)

    m_channelName = ui->comboBoxChannelName->itemText(index);

void ArtUSB3100::on_comboBoxInputCfg_currentIndexChanged(int index)

4. 主程序main.cpp

#include "artusb3100.h"

#include <QApplication>

int main(int argc, char *argv[])

    QApplication a(argc, argv);

    ArtUSB3100 w;

    w.show();

    return a.exec();

5. 工程文件

#-------------------------------------------------

# Project created by QtCreator 2022-10-14T08:56:56

#-------------------------------------------------

QT       += core gui

QT       += printsupport

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = ArtUSB3100

TEMPLATE = app

# The following define makes your compiler emit warnings if you use

# any feature of Qt which has been marked as deprecated (the exact warnings

# depend on your compiler). Please consult the documentation of the

# deprecated API in order to know how to port your code away from it.

DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.

# In order to do so, uncomment the following line.

# You can also select to disable deprecated APIs only up to a certain version of Qt.

#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

CONFIG += c++11

SOURCES += \

        main.cpp \

        artusb3100.cpp \

        qcustomplot.cpp

HEADERS += \

        artusb3100.h \

        qcustomplot.h

FORMS += \

        artusb3100.ui

# Default rules for deployment.

qnx: target.path = /tmp/$${TARGET}/bin

else: unix:!android: target.path = /opt/$${TARGET}/bin

!isEmpty(target.path): INSTALLS += target

win32:CONFIG(release, debug|release): LIBS += -L$$PWD/ArtDaq/Lib/x64/ -lArt_DAQ

else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/ArtDaq/Lib/x64/ -lArt_DAQd

INCLUDEPATH += $$PWD/ArtDaq/Include

DEPENDPATH += $$PWD/ArtDaq/Include

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