VTK可视化管线2

本文是学习笔记，总结实现《VTK图形图像开发进阶》2.4.2小节，并做了简要扩展！

#include <vtkSmartPointer.h>

#include <vtkStructuredPointsReader.h>

#include <vtkRenderer.h>

#include <vtkRenderWindow.h>

#include <vtkRenderWindowInteractor.h>

#include <vtkMarchingCubes.h>

#include <vtkPolyDataMapper.h>

#include <vtkActor.h>

//测试文件：data/head.vtk

int main(int argc, char* argv[])

{

//读入Structured_Points类型的vtk文件。

vtkSmartPointer<vtkStructuredPointsReader> reader = vtkSmartPointer<vtkStructuredPointsReader>::New();

reader->SetFileName("head.vtk");

//用移动立方体法提取等值面。

vtkSmartPointer<vtkMarchingCubes> marchingCubes = vtkSmartPointer<vtkMarchingCubes>::New();

vtkSmartPointer<vtkMarchingCubes> marchingCubes2 = vtkSmartPointer<vtkMarchingCubes>::New();

marchingCubes->SetInputConnection(reader->GetOutputPort());

marchingCubes2->SetInputConnection(reader->GetOutputPort());

//marchingCubes->SetValue(0, 500);   //显示皮肤

marchingCubes2->SetValue(0, 1150);  //显示骨骼

//将生成的等值面数据进行Mapper

vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New();

//mapper->SetInputConnection(marchingCubes->GetOutputPort());

mapper->SetInputConnection(marchingCubes2->GetOutputPort());

//把Mapper的输出送入渲染引擎进行显示

//////////////////////////////////////渲染引擎部分////////////////////////////////////

vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();

actor->SetMapper(mapper);

vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New();

renderer->AddActor(actor);

renderer->SetBackground(1.0, 1.0, 1.0);

vtkSmartPointer<vtkRenderWindow> renWin = vtkSmartPointer<vtkRenderWindow>::New();

renWin->AddRenderer(renderer);

renWin->SetSize(640, 480);

renWin->Render();

renWin->SetWindowName("vtkPipelineDemo");

vtkSmartPointer<vtkRenderWindowInteractor>interactor= vtkSmartPointer<vtkRenderWindowInteractor>::New();

interactor->SetRenderWindow(renWin);

interactor->Initialize();

interactor->Start();

//////////////////////////////////////////////////////////////////////////////////////////////////

getchar();

return EXIT_SUCCESS;

}

运行结果：

参考链接：https://blog.csdn.net/www_doling_net/article/details/8763686