1 参考资料

其实说四视图是不是很不专业，是不是应该叫多平面重建及三维切片显示呀。参考资料如下：

参考：https://blog.csdn.net/hit1524468/article/details/113446783

https://www.cnblogs.com/fuzhuoxin/p/12513872.html

https://blog.csdn.net/weixin_38500110/article/details/78807196

2 参考代码

#ifndef QtVTKRenderWindows_H
#define QtVTKRenderWindows_H#include "vtkSmartPointer.h"
#include "vtkResliceImageViewer.h"
#include "vtkImagePlaneWidget.h"
#include "vtkDistanceWidget.h"
#include "vtkResliceImageViewerMeasurements.h"
#include <QMainWindow>
#include <vtkAutoInit.h>
VTK_MODULE_INIT(vtkRenderingOpenGL2)
VTK_MODULE_INIT(vtkInteractionStyle)
VTK_MODULE_INIT(vtkRenderingFreeType)// Forward Qt class declarations
class Ui_QtVTKRenderWindows;class QtVTKRenderWindows : public QMainWindow
{Q_OBJECT
public:// Constructor/DestructorQtVTKRenderWindows(int argc, char *argv[]);~QtVTKRenderWindows() override {}public slots:virtual void slotExit();virtual void resliceMode(int);virtual void thickMode(int);virtual void SetBlendModeToMaxIP();virtual void SetBlendModeToMinIP();virtual void SetBlendModeToMeanIP();virtual void SetBlendMode(int);virtual void ResetViews();virtual void Render();virtual void AddDistanceMeasurementToView1();virtual void AddDistanceMeasurementToView( int );protected:vtkSmartPointer< vtkResliceImageViewer > riw[3];vtkSmartPointer< vtkImagePlaneWidget > planeWidget[3];vtkSmartPointer< vtkDistanceWidget > DistanceWidget[3];vtkSmartPointer< vtkResliceImageViewerMeasurements > ResliceMeasurements;protected slots:private:// Designer formUi_QtVTKRenderWindows *ui;
};#endif // QtVTKRenderWindows_H

#include "ui_QtVTKRenderWindows.h"
#include "QtVTKRenderWindows.h"#include "vtkBoundedPlanePointPlacer.h"
#include "vtkCellPicker.h"
#include "vtkCommand.h"
#include "vtkDICOMImageReader.h"
#include "vtkDistanceRepresentation.h"
#include "vtkDistanceRepresentation2D.h"
#include "vtkDistanceWidget.h"
#include <vtkGenericOpenGLRenderWindow.h>
#include "vtkHandleRepresentation.h"
#include "vtkImageData.h"
#include "vtkImageMapToWindowLevelColors.h"
#include "vtkImageSlabReslice.h"
#include "vtkInteractorStyleImage.h"
#include "vtkLookupTable.h"
#include "vtkPlane.h"
#include "vtkPlaneSource.h"
#include "vtkPointHandleRepresentation2D.h"
#include "vtkPointHandleRepresentation3D.h"
#include "vtkProperty.h"
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include "vtkRenderWindowInteractor.h"
#include "vtkResliceImageViewer.h"
#include "vtkResliceCursorLineRepresentation.h"
#include "vtkResliceCursorThickLineRepresentation.h"
#include "vtkResliceCursorWidget.h"
#include "vtkResliceCursorActor.h"
#include "vtkResliceCursorPolyDataAlgorithm.h"
#include "vtkResliceCursor.h"
#include "vtkMetaImageReader.h"
#include "vtkResliceImageViewerMeasurements.h"//----------------------------------------------------------------------------
class vtkResliceCursorCallback : public vtkCommand
{
public:static vtkResliceCursorCallback *New(){ return new vtkResliceCursorCallback; }void Execute( vtkObject *caller, unsigned long ev,void *callData ) override{if (ev == vtkResliceCursorWidget::WindowLevelEvent ||ev == vtkCommand::WindowLevelEvent ||ev == vtkResliceCursorWidget::ResliceThicknessChangedEvent){// Render everythingfor (int i = 0; i < 3; i++){this->RCW[i]->Render();}this->IPW[0]->GetInteractor()->GetRenderWindow()->Render();return;}vtkImagePlaneWidget* ipw =dynamic_cast< vtkImagePlaneWidget* >( caller );if (ipw){double* wl = static_cast<double*>( callData );if ( ipw == this->IPW[0] ){this->IPW[1]->SetWindowLevel(wl[0],wl[1],1);this->IPW[2]->SetWindowLevel(wl[0],wl[1],1);}else if( ipw == this->IPW[1] ){this->IPW[0]->SetWindowLevel(wl[0],wl[1],1);this->IPW[2]->SetWindowLevel(wl[0],wl[1],1);}else if (ipw == this->IPW[2]){this->IPW[0]->SetWindowLevel(wl[0],wl[1],1);this->IPW[1]->SetWindowLevel(wl[0],wl[1],1);}}vtkResliceCursorWidget *rcw = dynamic_cast<vtkResliceCursorWidget * >(caller);if (rcw){vtkResliceCursorLineRepresentation *rep = dynamic_cast<vtkResliceCursorLineRepresentation * >(rcw->GetRepresentation());// Although the return value is not used, we keep the get calls// in case they had side-effectsrep->GetResliceCursorActor()->GetCursorAlgorithm()->GetResliceCursor();for (int i = 0; i < 3; i++){vtkPlaneSource *ps = static_cast< vtkPlaneSource * >(this->IPW[i]->GetPolyDataAlgorithm());ps->SetOrigin(this->RCW[i]->GetResliceCursorRepresentation()->GetPlaneSource()->GetOrigin());ps->SetPoint1(this->RCW[i]->GetResliceCursorRepresentation()->GetPlaneSource()->GetPoint1());ps->SetPoint2(this->RCW[i]->GetResliceCursorRepresentation()->GetPlaneSource()->GetPoint2());// If the reslice plane has modified, update it on the 3D widgetthis->IPW[i]->UpdatePlacement();}}// Render everythingfor (int i = 0; i < 3; i++){this->RCW[i]->Render();}this->IPW[0]->GetInteractor()->GetRenderWindow()->Render();}vtkResliceCursorCallback() {}vtkImagePlaneWidget* IPW[3];vtkResliceCursorWidget *RCW[3];
};QtVTKRenderWindows::QtVTKRenderWindows( int vtkNotUsed(argc), char *argv[])
{this->ui = new Ui_QtVTKRenderWindows;this->ui->setupUi(this);
#if 0vtkSmartPointer< vtkDICOMImageReader > reader = vtkSmartPointer<vtkDICOMImageReader >::New();
//  reader->SetDirectoryName(argv[1]);reader->SetDirectoryName("/home/hsw/Qt_workSpace/build-RSVtkLearn_FourPaneViewer-Desktop_Qt_5_12_2_GCC_64bit-Debug/DCM/");
#elsevtkSmartPointer<vtkMetaImageReader> reader = vtkSmartPointer<vtkMetaImageReader>::New();reader->SetFileName("/home/hsw/Downloads/brain/brain.mhd");
#endifreader->Update();int imageDims[3];reader->GetOutput()->GetDimensions(imageDims);for (int i = 0; i < 3; i++){riw[i] = vtkSmartPointer< vtkResliceImageViewer >::New();vtkNew<vtkGenericOpenGLRenderWindow> renderWindow;riw[i]->SetRenderWindow(renderWindow);}this->ui->view1->SetRenderWindow(riw[0]->GetRenderWindow());riw[0]->SetupInteractor(this->ui->view1->GetRenderWindow()->GetInteractor());this->ui->view2->SetRenderWindow(riw[1]->GetRenderWindow());riw[1]->SetupInteractor(this->ui->view2->GetRenderWindow()->GetInteractor());this->ui->view3->SetRenderWindow(riw[2]->GetRenderWindow());riw[2]->SetupInteractor(this->ui->view3->GetRenderWindow()->GetInteractor());for (int i = 0; i < 3; i++){// make them all share the same reslice cursor object.vtkResliceCursorLineRepresentation *rep = vtkResliceCursorLineRepresentation::SafeDownCast(riw[i]->GetResliceCursorWidget()->GetRepresentation());riw[i]->SetResliceCursor(riw[0]->GetResliceCursor());rep->GetResliceCursorActor()->GetCursorAlgorithm()->SetReslicePlaneNormal(i);riw[i]->SetInputData(reader->GetOutput());riw[i]->SetSliceOrientation(i);riw[i]->SetResliceModeToAxisAligned();}vtkSmartPointer<vtkCellPicker> picker = vtkSmartPointer<vtkCellPicker>::New();picker->SetTolerance(0.005);vtkSmartPointer<vtkProperty> ipwProp = vtkSmartPointer<vtkProperty>::New();vtkSmartPointer< vtkRenderer > ren = vtkSmartPointer< vtkRenderer >::New();vtkNew<vtkGenericOpenGLRenderWindow> renderWindow;this->ui->view4->SetRenderWindow(renderWindow);this->ui->view4->GetRenderWindow()->AddRenderer(ren);vtkRenderWindowInteractor *iren = this->ui->view4->GetInteractor();for (int i = 0; i < 3; i++){planeWidget[i] = vtkSmartPointer<vtkImagePlaneWidget>::New();planeWidget[i]->SetInteractor( iren );planeWidget[i]->SetPicker(picker);planeWidget[i]->RestrictPlaneToVolumeOn();double color[3] = {0, 0, 0};color[i] = 1;planeWidget[i]->GetPlaneProperty()->SetColor(color);color[0] /= 4.0;color[1] /= 4.0;color[2] /= 4.0;riw[i]->GetRenderer()->SetBackground( color );planeWidget[i]->SetTexturePlaneProperty(ipwProp);planeWidget[i]->TextureInterpolateOff();planeWidget[i]->SetResliceInterpolateToLinear();planeWidget[i]->SetInputConnection(reader->GetOutputPort());planeWidget[i]->SetPlaneOrientation(i);planeWidget[i]->SetSliceIndex(imageDims[i]/2);planeWidget[i]->DisplayTextOn();planeWidget[i]->SetDefaultRenderer(ren);planeWidget[i]->SetWindowLevel(1358, -27);planeWidget[i]->On();planeWidget[i]->InteractionOn();}vtkSmartPointer<vtkResliceCursorCallback> cbk = vtkSmartPointer<vtkResliceCursorCallback>::New();for (int i = 0; i < 3; i++){cbk->IPW[i] = planeWidget[i];cbk->RCW[i] = riw[i]->GetResliceCursorWidget();riw[i]->GetResliceCursorWidget()->AddObserver(vtkResliceCursorWidget::ResliceAxesChangedEvent, cbk );riw[i]->GetResliceCursorWidget()->AddObserver(vtkResliceCursorWidget::WindowLevelEvent, cbk );riw[i]->GetResliceCursorWidget()->AddObserver(vtkResliceCursorWidget::ResliceThicknessChangedEvent, cbk );riw[i]->GetResliceCursorWidget()->AddObserver(vtkResliceCursorWidget::ResetCursorEvent, cbk );riw[i]->GetInteractorStyle()->AddObserver(vtkCommand::WindowLevelEvent, cbk );// Make them all share the same color map.riw[i]->SetLookupTable(riw[0]->GetLookupTable());planeWidget[i]->GetColorMap()->SetLookupTable(riw[0]->GetLookupTable());//planeWidget[i]->GetColorMap()->SetInput(riw[i]->GetResliceCursorWidget()->GetResliceCursorRepresentation()->GetColorMap()->GetInput());planeWidget[i]->SetColorMap(riw[i]->GetResliceCursorWidget()->GetResliceCursorRepresentation()->GetColorMap());}this->ui->view1->show();this->ui->view2->show();this->ui->view3->show();// Set up action signals and slotsconnect(this->ui->actionExit, SIGNAL(triggered()), this, SLOT(slotExit()));connect(this->ui->resliceModeCheckBox, SIGNAL(stateChanged(int)), this, SLOT(resliceMode(int)));connect(this->ui->thickModeCheckBox, SIGNAL(stateChanged(int)), this, SLOT(thickMode(int)));this->ui->thickModeCheckBox->setEnabled(0);connect(this->ui->radioButton_Max, SIGNAL(pressed()), this, SLOT(SetBlendModeToMaxIP()));connect(this->ui->radioButton_Min, SIGNAL(pressed()), this, SLOT(SetBlendModeToMinIP()));connect(this->ui->radioButton_Mean, SIGNAL(pressed()), this, SLOT(SetBlendModeToMeanIP()));this->ui->blendModeGroupBox->setEnabled(0);connect(this->ui->resetButton, SIGNAL(pressed()), this, SLOT(ResetViews()));connect(this->ui->AddDistance1Button, SIGNAL(pressed()), this, SLOT(AddDistanceMeasurementToView1()));
};void QtVTKRenderWindows::slotExit()
{qApp->exit();
}void QtVTKRenderWindows::resliceMode(int mode)
{this->ui->thickModeCheckBox->setEnabled(mode ? 1 : 0);this->ui->blendModeGroupBox->setEnabled(mode ? 1 : 0);for (int i = 0; i < 3; i++){riw[i]->SetResliceMode(mode ? 1 : 0);riw[i]->GetRenderer()->ResetCamera();riw[i]->Render();}
}void QtVTKRenderWindows::thickMode(int mode)
{for (int i = 0; i < 3; i++){riw[i]->SetThickMode(mode ? 1 : 0);riw[i]->Render();}
}void QtVTKRenderWindows::SetBlendMode(int m)
{for (int i = 0; i < 3; i++){vtkImageSlabReslice *thickSlabReslice = vtkImageSlabReslice::SafeDownCast(vtkResliceCursorThickLineRepresentation::SafeDownCast(riw[i]->GetResliceCursorWidget()->GetRepresentation())->GetReslice());thickSlabReslice->SetBlendMode(m);riw[i]->Render();}
}void QtVTKRenderWindows::SetBlendModeToMaxIP()
{this->SetBlendMode(VTK_IMAGE_SLAB_MAX);
}void QtVTKRenderWindows::SetBlendModeToMinIP()
{this->SetBlendMode(VTK_IMAGE_SLAB_MIN);
}void QtVTKRenderWindows::SetBlendModeToMeanIP()
{this->SetBlendMode(VTK_IMAGE_SLAB_MEAN);
}void QtVTKRenderWindows::ResetViews()
{// Reset the reslice image viewsfor (int i = 0; i < 3; i++){riw[i]->Reset();}// Also sync the Image plane widget on the 3D top right view with any// changes to the reslice cursor.for (int i = 0; i < 3; i++){vtkPlaneSource *ps = static_cast< vtkPlaneSource * >(planeWidget[i]->GetPolyDataAlgorithm());ps->SetNormal(riw[0]->GetResliceCursor()->GetPlane(i)->GetNormal());ps->SetCenter(riw[0]->GetResliceCursor()->GetPlane(i)->GetOrigin());// If the reslice plane has modified, update it on the 3D widgetthis->planeWidget[i]->UpdatePlacement();}// Render in response to changes.this->Render();
}void QtVTKRenderWindows::Render()
{for (int i = 0; i < 3; i++){riw[i]->Render();}this->ui->view3->GetRenderWindow()->Render();
}void QtVTKRenderWindows::AddDistanceMeasurementToView1()
{this->AddDistanceMeasurementToView(1);
}void QtVTKRenderWindows::AddDistanceMeasurementToView(int i)
{// remove existing widgets.if (this->DistanceWidget[i]){this->DistanceWidget[i]->SetEnabled(0);this->DistanceWidget[i] = nullptr;}// add new widgetthis->DistanceWidget[i] = vtkSmartPointer< vtkDistanceWidget >::New();this->DistanceWidget[i]->SetInteractor(this->riw[i]->GetResliceCursorWidget()->GetInteractor());// Set a priority higher than our reslice cursor widgetthis->DistanceWidget[i]->SetPriority(this->riw[i]->GetResliceCursorWidget()->GetPriority() + 0.01);vtkSmartPointer< vtkPointHandleRepresentation2D > handleRep =vtkSmartPointer< vtkPointHandleRepresentation2D >::New();vtkSmartPointer< vtkDistanceRepresentation2D > distanceRep =vtkSmartPointer< vtkDistanceRepresentation2D >::New();distanceRep->SetHandleRepresentation(handleRep);this->DistanceWidget[i]->SetRepresentation(distanceRep);distanceRep->InstantiateHandleRepresentation();distanceRep->GetPoint1Representation()->SetPointPlacer(riw[i]->GetPointPlacer());distanceRep->GetPoint2Representation()->SetPointPlacer(riw[i]->GetPointPlacer());// Add the distance to the list of widgets whose visibility is managed based// on the reslice plane by the ResliceImageViewerMeasurements classthis->riw[i]->GetMeasurements()->AddItem(this->DistanceWidget[i]);this->DistanceWidget[i]->CreateDefaultRepresentation();this->DistanceWidget[i]->EnabledOn();
}

3 自己的代码

#ifndef IMAGEMANAGE_H
#define IMAGEMANAGE_H#include <QWidget>
#include <QSplitter>
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QGridLayout>
#include <QResizeEvent>
#include <QtDebug>#include "QVTKOpenGLWidget.h"               //新版本，旧版QVTKWidget
#include "vtkAutoInit.h"
#include "vtkSmartPointer.h"
#include "vtkResliceImageViewer.h"
#include "vtkImagePlaneWidget.h"
#include "vtkDistanceWidget.h"
#include "vtkResliceImageViewerMeasurements.h"
#include "vtkBoundedPlanePointPlacer.h"
#include "vtkCellPicker.h"
#include "vtkCommand.h"
#include "vtkDICOMImageReader.h"
#include "vtkDistanceRepresentation.h"
#include "vtkDistanceRepresentation2D.h"
#include "vtkDistanceWidget.h"
#include <vtkGenericOpenGLRenderWindow.h>
#include "vtkHandleRepresentation.h"
#include "vtkImageData.h"
#include "vtkImageMapToWindowLevelColors.h"
#include "vtkImageSlabReslice.h"
#include "vtkInteractorStyleImage.h"
#include "vtkLookupTable.h"
#include "vtkPlane.h"
#include "vtkPlaneSource.h"
#include "vtkPointHandleRepresentation2D.h"
#include "vtkPointHandleRepresentation3D.h"
#include "vtkProperty.h"
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include "vtkRenderWindowInteractor.h"
#include "vtkResliceImageViewer.h"
#include "vtkResliceCursorLineRepresentation.h"
#include "vtkResliceCursorThickLineRepresentation.h"
#include "vtkResliceCursorWidget.h"
#include "vtkResliceCursorActor.h"
#include "vtkResliceCursorPolyDataAlgorithm.h"
#include "vtkResliceCursor.h"
#include "vtkResliceImageViewerMeasurements.h"class vtkResliceCursorCallback;namespace Ui {
class ImageManage;
}class ImageManage : public QWidget
{Q_OBJECTpublic:explicit ImageManage(QWidget *parent = nullptr);~ImageManage();void setCurrentTab(int temp =0);
public slots:/*** @brief slot_ReaderDICOMImage* @param fn* 读取DICOM文件*/void slot_ReaderDICOMImage(const char* fn);
protected:void resizeEvent(QResizeEvent *event) override;
private:Ui::ImageManage *ui;QSplitter *mSplitterMain = nullptr;QSplitter *mSplitterVertical = nullptr;QSplitter *mSplitterUp = nullptr;QSplitter *mSplitterDown = nullptr;double color[3] = {0,0,0};                                              //颜色vtkSmartPointer<vtkDICOMImageReader> reader = nullptr;                  //读取DICOM文件int imageDims[3] = {0};                                                 //暂时不理解vtkSmartPointer< vtkResliceImageViewer > riw[3];                        //三个二维视图vtkSmartPointer< vtkImagePlaneWidget > planeWidget[3];vtkSmartPointer< vtkDistanceWidget > DistanceWidget[3];                 //测试距离的，暂时没有移植，无用vtkSmartPointer< vtkResliceImageViewerMeasurements > ResliceMeasurements;   //不知道干啥，没有用到vtkSmartPointer<vtkProperty> ipwProp;                                       //属性vtkSmartPointer<vtkCellPicker> picker;                                      //拾取器vtkSmartPointer< vtkRenderer > ren;                                         //3D渲染器vtkSmartPointer<vtkResliceCursorCallback> cbk;                              //回调类};#endif // IMAGEMANAGE_H

#include "imagemanage.h"
#include "ui_imagemanage.h"class vtkResliceCursorCallback : public vtkCommand
{
public:static vtkResliceCursorCallback *New(){ return new vtkResliceCursorCallback; }void Execute( vtkObject *caller, unsigned long ev, void *callData ) override{if (ev == vtkResliceCursorWidget::WindowLevelEvent || ev == vtkCommand::WindowLevelEvent || ev == vtkResliceCursorWidget::ResliceThicknessChangedEvent){// Render everythingfor (int i = 0; i < 3; i++){this->RCW[i]->Render();}this->IPW[0]->GetInteractor()->GetRenderWindow()->Render();
//      return;                                                                 //这里需要注释掉，不然呵呵呵，返回了，还搞个毛线}vtkImagePlaneWidget* ipw = dynamic_cast< vtkImagePlaneWidget* >( caller );
//    qDebug() << "11" << caller << ipw;if (ipw){double* wl = static_cast<double*>( callData );if ( ipw == this->IPW[0] ){this->IPW[1]->SetWindowLevel(wl[0],wl[1],1);this->IPW[2]->SetWindowLevel(wl[0],wl[1],1);}else if( ipw == this->IPW[1] ){this->IPW[0]->SetWindowLevel(wl[0],wl[1],1);this->IPW[2]->SetWindowLevel(wl[0],wl[1],1);}else if (ipw == this->IPW[2]){this->IPW[0]->SetWindowLevel(wl[0],wl[1],1);this->IPW[1]->SetWindowLevel(wl[0],wl[1],1);}}vtkResliceCursorWidget *rcw = dynamic_cast<vtkResliceCursorWidget * >(caller);
//    qDebug() << "22" << caller << rcw;if (rcw){vtkResliceCursorLineRepresentation *rep = dynamic_cast<vtkResliceCursorLineRepresentation * >(rcw->GetRepresentation());// Although the return value is not used, we keep the get calls// in case they had side-effectsrep->GetResliceCursorActor()->GetCursorAlgorithm()->GetResliceCursor();for (int i = 0; i < 3; i++){vtkPlaneSource *ps = static_cast< vtkPlaneSource * >(this->IPW[i]->GetPolyDataAlgorithm());ps->SetOrigin(this->RCW[i]->GetResliceCursorRepresentation()->GetPlaneSource()->GetOrigin());ps->SetPoint1(this->RCW[i]->GetResliceCursorRepresentation()-> GetPlaneSource()->GetPoint1());ps->SetPoint2(this->RCW[i]->GetResliceCursorRepresentation()->GetPlaneSource()->GetPoint2());// If the reslice plane has modified, update it on the 3D widgetthis->IPW[i]->UpdatePlacement();}}// Render everythingfor (int i = 0; i < 3; i++){this->RCW[i]->Render();}this->IPW[0]->GetInteractor()->GetRenderWindow()->Render();}vtkResliceCursorCallback() {}vtkImagePlaneWidget* IPW[3];vtkResliceCursorWidget *RCW[3];
};static QPoint lastPos;
ImageManage::ImageManage(QWidget *parent) :QWidget(parent),ui(new Ui::ImageManage)
{ui->setupUi(this);/******************窗口大小分割*************************/mSplitterMain = new QSplitter(Qt::Horizontal,this);mSplitterVertical = new QSplitter(Qt::Vertical,mSplitterMain);mSplitterUp = new QSplitter(Qt::Horizontal,mSplitterVertical);mSplitterUp->addWidget(ui->widget_1);mSplitterUp->addWidget(ui->widget_2);mSplitterUp->setStretchFactor(0,1);mSplitterUp->setStretchFactor(1,1);mSplitterDown = new QSplitter(Qt::Horizontal,mSplitterVertical);mSplitterDown->addWidget(ui->widget_3);mSplitterDown->addWidget(ui->widget_4);mSplitterDown->setStretchFactor(0,1);mSplitterDown->setStretchFactor(1,1);mSplitterMain->insertWidget(0,mSplitterVertical);mSplitterMain->insertWidget(1,ui->widget_5);mSplitterMain->setStretchFactor(0,1);               //很魔性啊
}ImageManage::~ImageManage()
{delete ui;
}void ImageManage::setCurrentTab(int temp)
{Q_UNUSED(temp);
}
void ImageManage::slot_ReaderDICOMImage(const char *fn)
{if(!reader){reader = vtkSmartPointer<vtkDICOMImageReader>::New();}reader->SetDirectoryName(fn);                              //这里主要，是文件夹哈，不是文件名reader->Update();                                          //得更新呀，惰性渲染reader->GetOutput()->GetDimensions(imageDims);             //还不理解,翻译为获取维度,注释掉以后三维中有影响for (auto i = 0; i < 3; i++){riw[i] = vtkSmartPointer< vtkResliceImageViewer >::New();vtkNew<vtkGenericOpenGLRenderWindow> renderWindow;riw[i]->SetRenderWindow(renderWindow);}
//    ui->widget_1->SetRenderWindow(riw[0]->GetRenderWindow());riw[0]->SetupInteractor(ui->widget_1->GetRenderWindow()->GetInteractor());riw[0]->SetRenderWindow(ui->widget_1->GetRenderWindow());
//    ui->widget_2->SetRenderWindow(riw[1]->GetRenderWindow());riw[1]->SetupInteractor(ui->widget_2->GetRenderWindow()->GetInteractor());riw[1]->SetRenderWindow(ui->widget_2->GetRenderWindow());
//    ui->widget_3->SetRenderWindow(riw[2]->GetRenderWindow());riw[2]->SetRenderWindow(ui->widget_3->GetRenderWindow());riw[2]->SetupInteractor(ui->widget_3->GetRenderWindow()->GetInteractor());for (int i = 0; i < 3; i++){// make them all share the same reslice cursor object.vtkResliceCursorLineRepresentation *rep =vtkResliceCursorLineRepresentation::SafeDownCast(riw[i]->GetResliceCursorWidget()->GetRepresentation());riw[i]->SetResliceCursor(riw[0]->GetResliceCursor());rep->GetResliceCursorActor()->GetCursorAlgorithm()->SetReslicePlaneNormal(i);riw[i]->SetInputData(reader->GetOutput());riw[i]->SetSliceOrientation(i);riw[i]->SetResliceModeToAxisAligned();}picker = vtkSmartPointer<vtkCellPicker>::New();picker->SetTolerance(0.005);ipwProp = vtkSmartPointer<vtkProperty>::New();ren = vtkSmartPointer< vtkRenderer >::New();ui->widget_4->GetRenderWindow()->AddRenderer(ren);for (int i = 0; i < 3; i++){planeWidget[i] = vtkSmartPointer<vtkImagePlaneWidget>::New();planeWidget[i]->SetInteractor( ui->widget_4->GetInteractor() );planeWidget[i]->SetPicker(picker);planeWidget[i]->RestrictPlaneToVolumeOn();color[0] = 0;color[1] = 0;color[2] = 0;color[i] = 1;planeWidget[i]->GetPlaneProperty()->SetColor(color);color[0] = 0;color[1] = 0;color[2] = 0;riw[i]->GetRenderer()->SetBackground( color );planeWidget[i]->SetTexturePlaneProperty(ipwProp);planeWidget[i]->TextureInterpolateOff();planeWidget[i]->SetResliceInterpolateToLinear();planeWidget[i]->SetInputConnection(reader->GetOutputPort());planeWidget[i]->SetPlaneOrientation(i);planeWidget[i]->SetSliceIndex(imageDims[i]/2);planeWidget[i]->DisplayTextOn();planeWidget[i]->SetDefaultRenderer(ren);planeWidget[i]->SetWindowLevel(1358, -27);planeWidget[i]->On();planeWidget[i]->InteractionOn();}cbk = vtkSmartPointer<vtkResliceCursorCallback>::New();for (int i = 0; i < 3; i++){cbk->IPW[i] = planeWidget[i];cbk->RCW[i] = riw[i]->GetResliceCursorWidget();riw[i]->GetResliceCursorWidget()->AddObserver(vtkResliceCursorWidget::ResliceAxesChangedEvent, cbk );riw[i]->GetResliceCursorWidget()->AddObserver(vtkResliceCursorWidget::WindowLevelEvent, cbk );riw[i]->GetResliceCursorWidget()->AddObserver(vtkResliceCursorWidget::ResliceThicknessChangedEvent, cbk );riw[i]->GetResliceCursorWidget()->AddObserver(vtkResliceCursorWidget::ResetCursorEvent, cbk );riw[i]->GetInteractorStyle()->AddObserver(vtkCommand::WindowLevelEvent, cbk );// Make them all share the same color map.riw[i]->SetLookupTable(riw[0]->GetLookupTable());planeWidget[i]->GetColorMap()->SetLookupTable(riw[0]->GetLookupTable());//planeWidget[i]->GetColorMap()->SetInput(riw[i]->GetResliceCursorWidget()->GetResliceCursorRepresentation()->GetColorMap()->GetInput());planeWidget[i]->SetColorMap(riw[i]->GetResliceCursorWidget()->GetResliceCursorRepresentation()->GetColorMap());}
//    ui->widget_1->GetRenderWindow()->Render();
//    ui->widget_2->GetRenderWindow()->Render();
//    ui->widget_3->GetRenderWindow()->Render();
//    ui->widget_4->GetRenderWindow()->Render();//十字线for (int i = 0; i < 3; i++){riw[i]->SetResliceMode(1);riw[i]->GetRenderer()->ResetCamera();riw[i]->Render();}
// 还不知道干啥
//    for (int i = 0; i < 3; i++)
//      {
//        riw[i]->SetThickMode(1);
//        riw[i]->Render();
//      }//    for (int i = 0; i < 3; i++)
//      {
//        vtkImageSlabReslice *thickSlabReslice = vtkImageSlabReslice::SafeDownCast(
//            vtkResliceCursorThickLineRepresentation::SafeDownCast(
//              riw[i]->GetResliceCursorWidget()->GetRepresentation())->GetReslice());
//        thickSlabReslice->SetBlendMode(1);
//        riw[i]->Render();
//      }}void ImageManage::resizeEvent(QResizeEvent *event)
{Q_UNUSED(event);mSplitterMain->resize(this->size());
}

4 运行效果

☞ 源码

源码链接：https://github.com/DreamLife-Jianwei/Qt-Vtk

使用方法：☟☟☟

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医学四视图-002-四视图实现

电梯

1 参考资料

2 参考代码

3 自己的代码

4 运行效果

☞ 源码

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