vtk同一窗口中多个Renderer（渲染多个场景）示例

心已赠人 2023-07-05 13:08 9阅读 0赞

vtk版本: 8.2.0

平台：Windows 10

#include <vtkNew.h>
    #include <vtkConeSource.h>
    #include <vtkRenderWindow.h>
    #include <vtkCubeSource.h>
    #include <vtkCylinderSource.h>
    #include <vtkPlaneSource.h>
    #include <vtkPolyDataMapper.h>
    #include <vtkPolyDataMapper.h>
    #include <vtkRenderer.h>
    #include <vtkRenderWindowInteractor.h>
    #include <vtkInteractorStyleTrackballActor.h>
    
    #include <ImportLibVTK8_2_0.h>
    #include <AutoInitVTKModules.h>
    
    int main()
    {
        // 创建圆锥数据
        vtkNew<vtkConeSource> cone;
        cone->SetHeight(20);         //设置圆锥的高度和半径  
        cone->SetRadius(20);  
        cone->SetResolution(100);    //设置分辨率，值越大，越趋近于圆锥体
        //创建对应的mapper 
        vtkNew<vtkPolyDataMapper> coneMapper;
        coneMapper->SetInputConnection(cone->GetOutputPort());
        // 创建对应的Actor
        vtkNew<vtkActor> coneActor;
        coneActor->SetMapper(coneMapper);
        // 针对每个actor创建一个vtkRender，添加actor 
        vtkNew<vtkRenderer> coneRenderer;
        coneRenderer->AddActor(coneActor);
        //下面的代码就是设置视口的，将屏幕分为4个视口  
        //前两个参数是视口左下角点的坐标(xmin,ymin)，后两个参数是右上角的坐标(xmax,ymax)  
        coneRenderer->SetViewport(0, 0.5, 0.5, 1);
        coneRenderer->SetBackground(0.1, 0.2, 0.4);
    
        // 创建立方体
        vtkNew<vtkCubeSource> cube;
        cube->SetXLength(40);     //设置立方体的长宽高  
        cube->SetYLength(50);
        cube->SetZLength(60);
        vtkNew<vtkPolyDataMapper> cubeMapper;
        cubeMapper->SetInputConnection(cube->GetOutputPort());
        vtkNew<vtkActor> cubeActor;
        cubeActor->SetMapper(cubeMapper);
        vtkNew<vtkRenderer> cubeRenderer;
        cubeRenderer->AddActor(cubeActor);
        cubeRenderer->SetViewport(0.5, 0.5, 1, 1);
        cubeRenderer->SetBackground(0, 1, 0);
    
        //创建圆柱体  
        vtkNew<vtkCylinderSource> cylinder;
        vtkNew<vtkPolyDataMapper> cylinderMapper;
        cylinderMapper->SetInputConnection(cylinder->GetOutputPort());
        vtkNew<vtkActor> cylinderActor;
        cylinderActor->SetMapper(cylinderMapper);
        vtkNew<vtkRenderer> cylinderRenderer;
        cylinderRenderer->AddActor(cylinderActor);
        cylinderRenderer->SetViewport(0, 0, 0.5, 0.5);
    
        //创建平面  
        vtkNew<vtkPlaneSource> plane;
        vtkNew<vtkPolyDataMapper> planeMapper;
        planeMapper->SetInputConnection(plane->GetOutputPort());
        vtkNew<vtkActor> planeActor;
        planeActor->SetMapper(planeMapper);
        vtkNew<vtkRenderer> planeRenderer;
        planeRenderer->AddActor(planeActor);
        planeRenderer->SetViewport(0.5, 0, 1, 0.5);
        planeRenderer->SetBackground(0, 0, 1);
    
        vtkNew<vtkRenderWindow> renderWindow;
        renderWindow->AddRenderer(coneRenderer);
        renderWindow->AddRenderer(cubeRenderer);
        renderWindow->AddRenderer(cylinderRenderer);
        renderWindow->AddRenderer(planeRenderer);
        renderWindow->SetSize(800, 600);
        renderWindow->Render();
    
        //添加鼠标交互  
        vtkNew<vtkRenderWindowInteractor> interactor;
        interactor->SetRenderWindow(renderWindow);
        vtkNew<vtkInteractorStyleTrackballActor> style;
        interactor->SetInteractorStyle(style);
    
        //初始化交互器 并开始执行事件循环  
        interactor->Initialize();
        interactor->Start();
    
    }