Qt&Vtk-025-QChartTable

Posted 2021-09-05 DreamLife.

​ 摘要

文章目录

• 1 官方示例展示
• 2 代码搬运
• • 2.1 qcharttable.h
  • 2.2 qcharttable.cpp
• 3 运行效果
• ★ 源码 ★

1 官方示例展示

​ 今天接着人搬运代码，官方实例QChartTable，官方演示效果

2 代码搬运

2.1 qcharttable.h

#ifndef QCHARTTABLE_H
#define QCHARTTABLE_H

#include <QWidget>
#include "QVTKOpenGLWidget.h"               //新版本，旧版QVTKWidget
#include "vtkAutoInit.h"

#include "vtkChartXY.h"
#include "vtkContextScene.h"
#include "vtkContextView.h"
#include "vtkFloatArray.h"
#include "vtkGenericOpenGLRenderWindow.h"
#include "vtkMath.h"
#include "vtkNew.h"
#include "vtkPlot.h"
#include "vtkQtTableView.h"
#include "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkSmartPointer.h"
#include "vtkTable.h"
#include "vtkTimerLog.h"

#include "QHBoxLayout"
#include "QSurfaceFormat"
#include "QResizeEvent"
namespace Ui {
class QChartTable;
}

class QChartTable : public QWidget
{
    Q_OBJECT

public:
    explicit QChartTable(QWidget *parent = 0);
    ~QChartTable();

    void resizeEvent(QResizeEvent *event);

private:
    Ui::QChartTable *ui;

    QVTKOpenGLWidget *qvtkWidget = nullptr;

    vtkNew<vtkGenericOpenGLRenderWindow> renderWidow;

    vtkNew<vtkContextView> view;

    vtkNew<vtkTable> table;

    vtkNew<vtkFloatArray> arrX;

    vtkNew<vtkFloatArray> arrC;

    vtkNew<vtkFloatArray> arrS;

    vtkNew<vtkTimerLog> timers;

    vtkNew<vtkChartXY> chart;

    vtkNew<vtkQtTableView> tableview;
};

#endif // QCHARTTABLE_H

2.2 qcharttable.cpp

#include "qcharttable.h"
#include "ui_qcharttable.h"

QChartTable::QChartTable(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::QChartTable)
{
    ui->setupUi(this);

    qvtkWidget = new QVTKOpenGLWidget(ui->widget);

    qvtkWidget->SetRenderWindow(renderWidow);


    view->SetRenderWindow(renderWidow);

    view->SetInteractor(renderWidow->GetInteractor());


    arrX->SetName("X Axis");
    table->AddColumn(arrX);

    arrC->SetName("Cosine");
    table->AddColumn(arrC);

    arrS->SetName("Sine");
    table->AddColumn(arrS);



    int numPoints = 29;
    float inc = 7.0 / (numPoints - 1);
    table->SetNumberOfRows(numPoints);
    for(auto i = 0;i< numPoints;i++)
    {
        table->SetValue(i,0,i * inc);
        table->SetValue(i,1,cos(i * inc)+0.0);
        table->SetValue(i,2,sin(i * inc)+0.0);
    }

    view->GetScene()->AddItem(chart);

    vtkPlot *line = chart->AddPlot(vtkChart::LINE);
    line->SetInputData(table,0,1);
    line->SetColor(255,0,255);
    line = chart->AddPlot(vtkChart::LINE);
    line->SetInputData(table,0,2);
    line->SetColor(0,255,255);
    line->SetWidth(2.0);


    tableview->SetSplitMultiComponentColumns(true);
    tableview->AddRepresentationFromInput(table);
    tableview->Update();
    QHBoxLayout *layout = new QHBoxLayout(ui->widget);
    layout->addWidget(qvtkWidget, 2);
    layout->addWidget(tableview->GetWidget());


}

QChartTable::~QChartTable()
{
    delete ui;
}

void QChartTable::resizeEvent(QResizeEvent *event)
{
//    qvtkWidget->resize(ui->widget->size());
}

3 运行效果

​ 这里发现颜色不对，于是改了一下代码，文中就不修改了，可以自行探索一下，看是哪里的问题。到时上上图中的线是黑色的。

★ 源码 ★

​ 源码分享一时爽，一直分享一直爽， 链接如下：

自取：https://github.com/DreamLife-Jianwei/Qt-Vtk

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