VTK 读取STL文件并且显示

#include "stdafx.h"

#include "vtkCamera.h"

#include "vtkGenericRenderWindowInteractor.h"

#include "vtkInteractorStyleJoystickCamera.h"

#include "vtkInteractorStyleTrackballCamera.h"

#include "vtkLODActor.h"

#include "vtkLight.h"

#include "vtkPolyData.h"

#include "vtkPolyDataMapper.h"

#include "vtkPropPicker.h"

#include "vtkProperty.h"

#include "vtkRenderWindow.h"

#include "vtkRenderer.h"

#include "vtkSTLReader.h"

#include "vtkShrinkPolyData.h"

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

//创建绘制器对象

vtkRenderer *ren1 = vtkRenderer::New();

//设置相机

ren1->GetActiveCamera()->SetClippingRange(0.294421 , 29.4421);

ren1->GetActiveCamera()->SetDistance(7.94348);

ren1->GetActiveCamera()->SetFocalPoint(-66.9367 , -49.4539 , 258.453);

ren1->GetActiveCamera()->SetPosition(-67.8091 , -57.3489 , 258.377);

ren1->GetActiveCamera()->SetViewAngle(20);

ren1->GetActiveCamera()->SetViewUp(-0.82718 , 0.0860684 , 0.555306);

ren1->GetActiveCamera()->SetParallelProjection(0);

ren1->GetActiveCamera()->SetUseHorizontalViewAngle(0);

ren1->SetBackground(0.1 , 0.2 , 0.4);

ren1->SetLightFollowCamera(1);

//创建绘制窗口

vtkRenderWindow *renWin = vtkRenderWindow::New();

renWin->AddRenderer(ren1);

renWin->SetSize(1134 , 624);

//创建交互器

vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();

iren->SetRenderWindow(renWin);

iren->SetLightFollowCamera(1);

//读源对象读取stl数据文件

vtkSTLReader *part = vtkSTLReader::New();

part->SetOutput(part->GetOutput());

part->SetFileName("42400-IDGH.stl");

//创建过滤器对象，该对象将输入数据集的每个单元向单元质心收缩

//将会导致相邻单元之间出现裂缝

vtkShrinkPolyData *shrink = vtkShrinkPolyData::New();

//将源对象和过滤器连接

shrink->SetInput((vtkPolyData *) part->GetOutput());

//设置收缩系数，如果为1，不收缩

shrink->SetShrinkFactor(0.9);

//创建映射器对象

vtkPolyDataMapper *partMapper = vtkPolyDataMapper::New();

partMapper->SetInput((vtkPolyData *) shrink->GetOutput());

partMapper->SetNumberOfPieces(1);

partMapper->SetScalarRange(0 , 1);

partMapper->SetColorMode(0);

partMapper->SetResolveCoincidentTopology(0);

partMapper->SetScalarMode(0);

partMapper->SetImmediateModeRendering(0);

partMapper->SetScalarVisibility(1);

partMapper->SetUseLookupTableScalarRange(0);

//创建Props对象(Actor)

vtkLODActor *partActor = vtkLODActor::New();

partActor->SetMapper(partMapper);

partActor->GetProperty()->SetAmbientColor(0.8275 , 0.8275 , 0.8275);

partActor->GetProperty()->SetColor(0.8275 , 0.8275 , 0.8275);

partActor->GetProperty()->SetDiffuseColor(0.8275 , 0.8275 , 0.8275);

partActor->GetProperty()->SetOpacity(1);

partActor->GetProperty()->SetInterpolation(1);

partActor->GetProperty()->SetRepresentation(2);

partActor->GetProperty()->SetBackfaceCulling(0);

partActor->GetProperty()->SetEdgeVisibility(0);

partActor->GetProperty()->SetFrontfaceCulling(0);

partActor->SetOrigin(0 , 0 , 0);

partActor->SetPosition(0 , 0 , 0);

partActor->SetScale(1 , 1 , 1);

partActor->SetVisibility(1);

//将Actor对象添加到绘制器中

ren1->AddActor( partActor );

//绘制

ren1->ResetCamera();

ren1->ResetCameraClippingRange();

renWin->Render();

iren->Initialize();

iren->Start();

//删除对象

iren->Delete();

part->Delete();

partActor->Delete();

partMapper->Delete();

ren1->Delete();

renWin->Delete();

shrink->Delete();

return 0;