VTK：读取obj文件，使用vtkMassProperties计算obj三维模型的体积和面积

#include <vtkOBJReader.h>
#include <vtkTriangleFilter.h>
#include <vtkSmartPointer.h>
#include <vtkMassProperties.h>
#include <iostream>
using namespace std;

int main()
{
vtkSmartPointer<vtkOBJReader> reader =vtkSmartPointer<vtkOBJReader>::New();
reader->SetFileName("C:\\Users\\HuangWang\\Desktop\\兔子.obj");
reader->Update();

vtkSmartPointer< vtkTriangleFilter > triangleFilter= vtkSmartPointer< vtkTriangleFilter >::New();
triangleFilter->SetInput( reader->GetOutput());
triangleFilter->Update();

vtkSmartPointer<vtkMassProperties> polygonProperties = vtkSmartPointer< vtkMassProperties >::New();
polygonProperties->SetInput(triangleFilter->GetOutput());
polygonProperties->Update();

double vol = polygonProperties->GetVolume();
double area= polygonProperties->GetSurfaceArea();

cout<<vol<<"	"<<area<<endl;

return 0;
}