vtk实战(十二)——读取.obj文件

OBJ文件是Alias|Wavefront公司为它的一套基于工作站的3D建模和动画软件”Advanced Visualizer”开发的一种标准3D模型文件格式。
具体内容可参照：
http://www.cppblog.com/lovedday/archive/2008/06/13/53153.html
本例主要用vtkOBJReader（）类读取Wavefront .obj格式的文件。

#include <vtkOBJReader.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSmartPointer.h>
#include <string>

int main()
{
    std::string filename = "cube.obj";
    vtkSmartPointer<vtkOBJReader> reader =
        vtkSmartPointer<vtkOBJReader>::New();
    reader->SetFileName(filename.c_str());
    reader->Update();

    vtkSmartPointer<vtkPolyDataMapper> mapper =
        vtkSmartPointer<vtkPolyDataMapper>::New();
    mapper->SetInputConnection(reader->GetOutputPort());

    vtkSmartPointer<vtkActor> actor =
        vtkSmartPointer<vtkActor>::New();
    actor->SetMapper(mapper);

    vtkSmartPointer<vtkRenderer> renderer =
        vtkSmartPointer<vtkRenderer>::New();
    renderer->AddActor(actor);
    renderer->SetBackground(.3, .6, .3);

    vtkSmartPointer<vtkRenderWindow> renderWindow =
        vtkSmartPointer<vtkRenderWindow>::New();
    renderWindow->AddRenderer(renderer);

    vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
        vtkSmartPointer<vtkRenderWindowInteractor>::New();
    renderWindowInteractor->SetRenderWindow(renderWindow);
    renderWindow->Render();
    renderWindowInteractor->Start();

    return 0;
}

程序代码：
http://pan.baidu.com/s/1eRXIKyY