vtk渲染管线Chap02.4

书章节2.4管线

VTK两个重要概念，一个是数据的可视化表达，一个是可视化管线。

2.4_vtkPipelineDemo.cpp如下

//VTK INIT With Opengl2
#include <vtkAutoInit.h>
VTK_MODULE_INIT(vtkRenderingOpenGL2)
VTK_MODULE_INIT(vtkInteractionStyle)#include <vtkRenderWindow.h>
#include <vtkSmartPointer.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkInteractorStyleTrackballCamera.h>
#include <vtkCylinderSource.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkJPEGReader.h>
#include <vtkTexture.h>
#include <vtkPlaneSource.h>
#include <vtkStructuredPointsReader.h>
#include <vtkMarchingCubes.h>
#include <vtkTransform.h>int main()
{vtkSmartPointer<vtkStructuredPointsReader> reader = vtkSmartPointer<vtkStructuredPointsReader>::New();reader->SetFileName("..\\data\\head.vtk");vtkSmartPointer<vtkMarchingCubes> marchingCubes = vtkSmartPointer<vtkMarchingCubes>::New();marchingCubes->SetInputConnection(reader->GetOutputPort());marchingCubes->SetValue(0,500);vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New();mapper->SetInputConnection(marchingCubes->GetOutputPort());vtkSmartPointer<vtkTransform> transform = vtkSmartPointer<vtkTransform>::New();transform->PostMultiply();transform->RotateZ(180);transform->RotateX(90);vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();actor->SetMapper(mapper);actor->SetUserTransform(transform);vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New();renderer->AddActor(actor);//renderer->SetBackground(0.1, 0.2, 0.4);vtkSmartPointer<vtkRenderWindow> renWin = vtkSmartPointer<vtkRenderWindow>::New();renWin->AddRenderer(renderer);renWin->SetSize(500, 500);renWin->SetWindowName("Cylinder");vtkSmartPointer<vtkRenderWindowInteractor> iren = vtkSmartPointer<vtkRenderWindowInteractor>::New();iren->SetRenderWindow(renWin);vtkSmartPointer<vtkInteractorStyleTrackballCamera> style = vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New();iren->SetInteractorStyle(style);renWin->Render();iren->Initialize();iren->Start();return 0;
}