Qt&Vtk-026-QScalarsToColors
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摘要
1 官方示例展示
今天我们又来搬运代码了,今天搬运的是官方实例QScalarsToColors,下面看向官方实例演示
2 代码搬运
2.1 qscalarstocolors.h
#ifndef QSCALARSTOCOLORS_H
#define QSCALARSTOCOLORS_H
#include <QWidget>
#include "QVTKOpenGLWidget.h" //新版本,旧版QVTKWidget
#include "vtkAutoInit.h"
#include "QVTKOpenGLWidget.h"
#include "vtkChartXY.h"
#include "vtkColorTransferFunction.h"
#include "vtkCompositeTransferFunctionItem.h"
#include "vtkContextScene.h"
#include "vtkContextView.h"
#include "vtkFloatArray.h"
#include "vtkGenericOpenGLRenderWindow.h"
#include "vtkMath.h"
#include "vtkNew.h"
#include "vtkPiecewiseFunction.h"
#include "vtkPlot.h"
#include "vtkQtTableView.h"
#include "vtkRenderer.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkTimerLog.h"
#include <QResizeEvent>
namespace Ui {
class QScalarsToColors;
}
class QScalarsToColors : public QWidget
{
Q_OBJECT
public:
explicit QScalarsToColors(QWidget *parent = 0);
~QScalarsToColors();
void resizeEvent(QResizeEvent *event)override;
private:
Ui::QScalarsToColors *ui;
QVTKOpenGLWidget *qvtkWidget = nullptr;
vtkNew<vtkGenericOpenGLRenderWindow> renderWindow;
vtkNew<vtkContextView> view;
};
#endif // QSCALARSTOCOLORS_H
2.2 qscalarstocolors.cpp
#include "qscalarstocolors.h"
#include "ui_qscalarstocolors.h"
QScalarsToColors::QScalarsToColors(QWidget *parent) :
QWidget(parent),
ui(new Ui::QScalarsToColors)
{
ui->setupUi(this);
qvtkWidget = new QVTKOpenGLWidget(ui->widget);
qvtkWidget->SetRenderWindow(renderWindow);
view->SetRenderWindow(qvtkWidget->GetRenderWindow());
view->SetInteractor(qvtkWidget->GetInteractor());
vtkNew<vtkChartXY> chart;
chart->SetTitle("Chart");
view->GetScene()->AddItem(chart);
vtkNew<vtkColorTransferFunction> colorTransferFunction;
colorTransferFunction->AddHSVSegment(0.,0.,1.,1.,0.3333,0.3333,1.,1.);
colorTransferFunction->AddHSVSegment(0.3333,0.3333,1.,1.,0.6666,0.6666,1.,1.);
colorTransferFunction->AddHSVSegment(0.6666,0.6666,1.,1.,1.,0.,1.,1.);
colorTransferFunction->Build();
vtkNew<vtkPiecewiseFunction> opacityFunction;
opacityFunction->AddPoint(0.,0.);
opacityFunction->AddPoint(0.5,0.5);
opacityFunction->AddPoint(1.,1.);
vtkNew<vtkCompositeTransferFunctionItem> item3;
item3->SetColorTransferFunction(colorTransferFunction);
item3->SetOpacityFunction(opacityFunction);
item3->SetOpacity(0.2);
item3->SetMaskAboveCurve(true);
chart->AddPlot(item3);
}
QScalarsToColors::~QScalarsToColors()
{
delete ui;
}
void QScalarsToColors::resizeEvent(QResizeEvent *event)
{
qvtkWidget->resize(ui->widget->size());
}
3 运行效果
★ 源码 ★
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