vtk读取stl格式的数据

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#include <vtkSmartPointer.h>
#include <vtkRendererCollection.h>
#include <vtkPointPicker.h>
#include <vtkSphereSource.h>
#include <vtkPolyDataMapper.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkActor.h>
#include <vtkInteractorStyleTrackballCamera.h>
#include <vtkObjectFactory.h>
#include <vtkProperty.h>
#include <vtkSTLReader.h>
#include <vtkCylinderSource.h>
#include <vtkCubeAxesActor.h>
#include <vtkAxesActor.h>
#include <vtkOrientationMarkerWidget.h>
#include <vtkAutoInit.h> 
VTK_MODULE_INIT(vtkRenderingOpenGL2);
VTK_MODULE_INIT(vtkInteractionStyle);
VTK_MODULE_INIT(vtkRenderingFreeType)
int main(int, char *[])
{
	// Read a stl file.
	vtkSmartPointer<vtkPolyData> input1 = vtkSmartPointer<vtkPolyData>::New();
	vtkSmartPointer<vtkSTLReader> reader1 = vtkSmartPointer<vtkSTLReader>::New();
	reader1->SetFileName("test.stl");
	reader1->Update();
	input1->DeepCopy(reader1->GetOutput());

	// Create a mapper and actor
	vtkSmartPointer<vtkPolyDataMapper> mapper =
		vtkSmartPointer<vtkPolyDataMapper>::New();
	mapper->SetInputConnection(reader1->GetOutputPort());
	vtkSmartPointer<vtkActor> actor =
		vtkSmartPointer<vtkActor>::New();
	actor->SetMapper(mapper);
	actor->GetProperty()->SetOpacity(0.7);

	// Create a renderer, render window, and interactor
	vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New();
	vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New();
	renderWindow->Render();
	renderWindow->SetWindowName("PointPicker");
	renderWindow->AddRenderer(renderer);

	vtkSmartPointer<vtkPointPicker> pointPicker = vtkSmartPointer<vtkPointPicker>::New();

	vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New();
	renderWindowInteractor->SetPicker(pointPicker);
	renderWindowInteractor->SetRenderWindow(renderWindow);

	// Add the actor to the scene
	renderer->AddActor(actor);
	renderer->SetBackground(0, 0, 0);

	// Render and interact
	renderWindow->Render();
	renderWindowInteractor->Start();

	return EXIT_SUCCESS;
}

结果：