VTK 实例10：坐标系统2

#include "vtkAutoInit.h" 
VTK_MODULE_INIT(vtkRenderingOpenGL2);
VTK_MODULE_INIT(vtkInteractionStyle);
#include <vtkConeSource.h>//源数据
#include <vtkCubeSource.h>//立方体
#include <vtkPolyDataMapper.h>//数据映射
#include <vtkRenderer.h>//绘制器
#include <vtkRenderWindow.h>//绘制窗口
#include <vtkCamera.h>//照相机
#include <vtkRenderWindowInteractor.h>//加入交互机制类


int main()
{
    //指针创建一个锥体cone
    vtkConeSource* cone = vtkConeSource::New();
    cone->SetResolution(5);//圆锥的棱边数
    cone->SetHeight(3);//指定高度
    cone->SetRadius(1);//指定半径

    //指针创建一个柱体
    vtkCubeSource* cube = vtkCubeSource::New();

    //实例化一个映射器coneMapper
    vtkPolyDataMapper* coneMapper = vtkPolyDataMapper::New();
    coneMapper->SetInputConnection(cone->GetOutputPort());//源数据输出给映射器输入

    //实例化一个映射器cubeMapper
    vtkPolyDataMapper* cubeMapper = vtkPolyDataMapper::New();
    cubeMapper->SetInputConnection(cube->GetOutputPort());//源数据输出给映射器输入

    //创建一个演员对象coneActor
    vtkActor* coneActor = vtkActor::New();
    coneActor->SetMapper(coneMapper);//为演员指定mapper进行映射

    //创建一个演员对象cubeActor
    vtkActor* cubeActor = vtkActor::New();
    cubeActor->SetMapper(cubeMapper);//为演员指定mapper进行映射

    //搭建舞台  实例化渲染器对象renderer
    vtkRenderer* renderer = vtkRenderer::New();
    renderer->AddActor(coneActor);//将演员加入场景
    renderer->SetBackground(1.0, 0.0, 0.0);//设置场景背景颜色为红色(R,G,B)
    //在绘制窗口指定视口（Xmin,Ymin,Xmax,Ymax)(x,y范围都为0~1)
    renderer->SetViewport(0.0, 0.0, 0.5, 0.5);//视口1

    //搭建舞台  实例化渲染器对象renderer2
    vtkRenderer* renderer2 = vtkRenderer::New();
    renderer2->AddActor(cubeActor);//将演员加入场景
    renderer2->SetBackground(0.0, 1.0, 0.0);//设置场景背景颜色为绿色(R,G,B)
    renderer2->SetViewport(0.5, 0.0, 1.0, 0.5);//视口2

    vtkRenderer* renderer3 = vtkRenderer::New();
    renderer3->AddActor(cubeActor);
    renderer3->SetBackground(0.0, 0.0, 1.0);//蓝色
    renderer3->SetViewport(0.0, 0.5, 0.5, 1.0);//视口3

    vtkRenderer* renderer4 = vtkRenderer::New();
    renderer4->AddActor(coneActor);
    renderer4->SetBackground(1.0, 1.0, 0.0);//黄色
    renderer4->SetViewport(0.5, 0.5, 1.0, 1.0);//视口4

    //实例化一个窗口对象renWin
    vtkRenderWindow* renWin = vtkRenderWindow::New();
    renWin->SetSize(640, 480);//设置窗口大小宽*高
    renWin->AddRenderer(renderer);//将场景renderer加入renWin窗口中
    renWin->AddRenderer(renderer2);//将场景renderer2加入renWin窗口中
    renWin->AddRenderer(renderer3);
    renWin->AddRenderer(renderer4);

    //实例化一个交互对象
    vtkRenderWindowInteractor* interactor = vtkRenderWindowInteractor::New();//交互对象加入renWin窗口中
    interactor->SetRenderWindow(renWin);

    renWin->Render();//绘制舞台上的东西

    interactor->Initialize();//交互对象初始化
    interactor->Start();//开始交互事件

    cone->Delete();
    cube->Delete();
    coneActor->Delete();
    cubeActor->Delete();
    coneMapper->Delete();
    cubeMapper->Delete();
    renderer->Delete();
    renderer2->Delete();
    renderer3->Delete();
    renderer4->Delete();
    renWin->Delete();
    interactor->Delete();

    return 0;
}