1 官方示例展示

今天又来搬运代码了，这周是入职的第三周了，领导给安排的任务，后面要开始搞任务了。今天搬运的代码为官方实例MuliView。

从运行界面来看，和我们之前搬运的CreateTree没有啥区别呀。官方的描述也很简单呀，设个描述是不是很迷呀。

2 代码搬运

2.1 multiview.h

 #ifndef MULTIVIEW_H
 #define MULTIVIEW_H
 
 #include <QWidget>
 #include "QVTKOpenGLWidget.h"               //新版本，旧版QVTKWidget
 #include "vtkAutoInit.h"
 #include "vtkAnnotationLink.h"
 #include "vtkCommand.h"
 #include "vtkDataRepresentation.h"
 #include "vtkDataSetAttributes.h"
 #include "vtkGraphLayoutView.h"
 #include "vtkMutableDirectedGraph.h"
 #include "vtkRandomGraphSource.h"
 #include "vtkRenderer.h"
 #include "vtkRenderWindow.h"
 #include "vtkRenderWindowInteractor.h"
 #include "vtkStringArray.h"
 #include "vtkTree.h"
 #include "vtkViewTheme.h"
 #include "vector"
 
 
 class ViewUpdater :public vtkCommand
 {
 public:
     static ViewUpdater* New()
     {
         return new ViewUpdater;
     }
     void AddView(vtkView *view)
     {
         this->Views.push_back(view);
         view->AddObserver(vtkCommand::SelectionChangedEvent,this);
     }
 
     void Execute(vtkObject*,unsigned long,void*)override
     {
         for(unsigned int i = 0;i<this->Views.size();i++)
         {
             this->Views[i]->Update();
         }
     }
 
 
 private:
     ViewUpdater() = default;
     ~ViewUpdater() override = default;
     std::vector<vtkView*> Views;
 };
 
 
 
 
 namespace Ui {
 class MultiView;
 }
 
 class MultiView : public QWidget
 {
     Q_OBJECT
 
 public:
     explicit MultiView(QWidget *parent = 0);
     ~MultiView();
 
 private:
     Ui::MultiView *ui;
 
     vtkMutableDirectedGraph *graph = nullptr;
 
     vtkStringArray* labels = nullptr;
 
     vtkTree* tree = nullptr;
 
     vtkGraphLayoutView* view = nullptr;
 
     vtkGraphLayoutView* view2 = nullptr;
 
     vtkAnnotationLink* link = nullptr;
 
     ViewUpdater* update = nullptr;
 
 
 };
 
 #endif // MULTIVIEW_H

2.2 multiview.cpp

 #include "multiview.h"
 #include "ui_multiview.h"
 
 MultiView::MultiView(QWidget *parent) :
     QWidget(parent),
     ui(new Ui::MultiView)
 {
     ui->setupUi(this);
 
     graph = vtkMutableDirectedGraph::New();
     vtkIdType a = graph->AddVertex();
     vtkIdType b = graph->AddChild(a);
     vtkIdType c = graph->AddChild(a);
     vtkIdType d = graph->AddChild(b);
     vtkIdType e = graph->AddChild(c);
     vtkIdType f = graph->AddChild(c);
 
     labels = vtkStringArray::New();
     labels->SetName("Label");
     labels->InsertValue(a, "a");
     labels->InsertValue(b, "b");
     labels->InsertValue(c, "c");
     labels->InsertValue(d, "d");
     labels->InsertValue(e, "e");
     labels->InsertValue(f, "f");
     graph->GetVertexData()->AddArray(labels);
 
 
     tree = vtkTree::New();
     bool validTree = tree->CheckedShallowCopy(graph);
     if (!validTree)
     {
         std::cout << "ERROR: Invalid tree" << std::endl;
         graph->Delete();
         labels->Delete();
         tree->Delete();
     }
 
     view = vtkGraphLayoutView::New();
     view->SetRenderWindow(ui->widget->GetRenderWindow());
     vtkDataRepresentation* rep =view->SetRepresentationFromInput(tree);
     vtkViewTheme* theme = vtkViewTheme::CreateMellowTheme();
     view->ApplyViewTheme(theme);
     view->SetVertexColorArrayName("VertexDegree");
     view->SetColorVertices(true);
     view->SetVertexLabelArrayName("Label");
     view->SetVertexLabelVisibility(true);
 
     view2 = vtkGraphLayoutView::New();
     vtkDataRepresentation* rep2 =view2->SetRepresentationFromInput(tree);
     view2->SetVertexLabelArrayName("Label");
     view2->SetVertexLabelVisibility(true);
 
     link = vtkAnnotationLink::New();
     rep->SetAnnotationLink(link);
     rep2->SetAnnotationLink(link);
 
     update = ViewUpdater::New();
     update->AddView(view);
     update->AddView(view2);
 
 }
 
 MultiView::~MultiView()
 {
     delete ui;
 }

3 运行效果

这个是我的运行效果了，但是呢不知道为什么这些代码跑到Qt里面，点就成了圆点了。

★ 源码 ★

源码分享一时爽，一直分享一直爽，链接如下：

自取：github.com/DreamLife-J…

在这里插入图片描述

Qt&Vtk-MultiView

1 官方示例展示

2 代码搬运

2.1 multiview.h

2.2 multiview.cpp

3 运行效果

★ 源码 ★