VTK讀取.obj格式或.ply格式並三維顯示

VTK讀取.ply根式並三維顯示代碼如下：

#define vtkRenderingCore_AUTOINIT 2(vtkRenderingOpenGL2, vtkInteractionStyle)
#include <vtkOBJReader.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSmartPointer.h>
#include <vtkPLYReader.h>
#include <string>

int main()
{
	//std::string filename = "Greedy_Delaunay_knee_piece.obj";   //Greedy_Delaunay_knee_piece   bunny-5000
	//vtkSmartPointer<vtkOBJReader> reader =
	//	vtkSmartPointer<vtkOBJReader>::New();
	//reader->SetFileName(filename.c_str());
	//reader->Update();

	std::string filename = "Greedy_Delaunay_knee_piece.ply";   //Greedy_Delaunay_knee_piece   bunny-5000
	vtkSmartPointer<vtkPLYReader> reader =
		vtkSmartPointer<vtkPLYReader>::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;
}

VTK讀取.obj根式並三維顯示代碼如下：

#define vtkRenderingCore_AUTOINIT 2(vtkRenderingOpenGL2, vtkInteractionStyle)
#include <vtkOBJReader.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSmartPointer.h>
#include <vtkPLYReader.h>
#include <string>

int main()
{
	std::string filename = "Greedy_Delaunay_knee_piece.obj";   //Greedy_Delaunay_knee_piece   bunny-5000
	vtkSmartPointer<vtkOBJReader> reader =
		vtkSmartPointer<vtkOBJReader>::New();
	reader->SetFileName(filename.c_str());
	reader->Update();

	//std::string filename = "Greedy_Delaunay_knee_piece.ply";   //Greedy_Delaunay_knee_piece   bunny-5000
	//vtkSmartPointer<vtkPLYReader> reader =
	//	vtkSmartPointer<vtkPLYReader>::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;
}

參考博文：

1、VTK：讀取obj文件，使用vtkMassProperties計算obj三維模型的體積和麪積；