affichage NUAGEde point VTK c++
bonjour,
j'essai d'afficher nuage de point avec c++/vtk
je prend en entrée un fichier .obj dont je prends les sommets pour l'afficher
j'ai réussi la compile de l'application mais po de nuage de points sur l'ecran :cry:
voilà mon code :
Code:
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data->SetPoints(points);
fclose(datei);
fprintf(stdout,"\n\n");
vtkCellArray *polys = vtkCellArray::New();
int iNo = points->GetNumberOfPoints();
//cout <<"I:"<<iNo<<endl;
for (int i=0; i<iNo; i++)
{
polys->InsertNextCell(1,&i);
//cout <<"pol"<<polys<<endl;
}
data->SetPolys(polys);
//cout <<"pol"<<data<<endl;
polys->Delete();
// Now we'll look at it.
vtkPolyDataMapper *pointsMapper = vtkPolyDataMapper::New();
pointsMapper->SetInput(data);
vtkActor *pointsActor = vtkActor::New();
pointsActor->SetMapper(pointsMapper);
pointsActor->GetProperty()->SetRepresentationToPoints();
pointsActor->GetProperty()->SetPointSize(20);
pointsActor->GetProperty()->SetColor(0.0,0.5,1.0);
//actor->GetProperty()->SetPointSize(20)
// The usual rendering stuff.
vtkCamera *camera = vtkCamera::New();
camera->SetPosition(1,1,1);
camera->SetFocalPoint(0,0,0);
vtkRenderer *renderer = vtkRenderer::New();
vtkRenderWindow *renWin = vtkRenderWindow::New();
renWin->AddRenderer(renderer);
vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
iren->SetRenderWindow(renWin);
renderer->AddActor(pointsActor);
//renderer->AddActor(surfaceActor);
renderer->SetActiveCamera(camera);
renderer->GetActiveCamera()->SetFocalPoint(0, 0, 0);
renderer->GetActiveCamera()->SetPosition(1, 0, 0);
renderer->GetActiveCamera()->SetViewUp(0, 0, 1);
renderer->ResetCamera();
renderer->GetActiveCamera()->Azimuth(20);
renderer->GetActiveCamera()->Elevation(30);
renderer->GetActiveCamera()->Dolly(1.2);
renderer->ResetCameraClippingRange();
renderer->SetBackground(1,1,1);
renWin->SetSize(300,300);
// interact with data
renWin->Render();
iren->Start();
// Clean up
pointsMapper->Delete();
pointsActor->Delete();
points->Delete();
data->Delete();
camera->Delete();
renderer->Delete();
renWin->Delete();
iren->Delete();
return 0;
}
ou est la faute :? |
