bonjour,

j'essai d'afficher nuage de point avec c++/vtk
je prend en entr�e un fichier .obj dont je prends les sommets pour l'afficher

j'ai r�ussi la compile de l'application mais po de nuage de points sur l'ecran

voil� mon code :
Code : S�lectionner tout - Visualiser dans une fen�tre � part
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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 :?