[vtkusers] mismatch of datasize with declaration

[nuno.jf]

Dear users,

I am reading an image and trying to generate a surface. 
I am using  vtkImageGaussianSmooth and vtkImageMarchingCubes to smooth the
image and to generate the isocontours.
The problem is that, when using vtkImageMarchingCubes, for some min/max
range values I define in GenerateValues() I get the following message (when
trying to read the output file in paraview):

/Generic Warning: In ..\..\..\..\source\VTK\IO\vtkDataReader.cxx, line 1382
Error reading ascii data. Possible mismatch of datasize with declaration./

I noticed that thjs happens when I am computing normals
(ComputeNormalsOn()), because I wasn't able to reproduce this error without
ComputeNormalsOn().


Any help?

Here is my code:

/*=================================================
Name: 

Input: 

Output: 

Arguments to run: 



Nuno Fernandes 
===================================================*/


============================================
int main( int argc, char *argv[] )
{
	
	vtkStructuredPointsReader *imp1 = vtkStructuredPointsReader::New();
	imp1 -> SetFileName( argv[1] ); 
	imp1 -> Update();
	
	vtkImageGaussianSmooth *smooth = vtkImageGaussianSmooth::New();
	smooth->SetInput(imp1->GetOutput());
	smooth->SetDimensionality(3);
	smooth->SetStandardDeviations(1,1,1);
	smooth->Update();
	
	vtkSmartPointer<vtkImageMarchingCubes> mc =
	vtkSmartPointer<vtkImageMarchingCubes>::New();
	mc->SetInput(smooth->GetOutput());
	mc->ComputeNormalsOn();
	mc->ComputeGradientsOn();
	mc->GenerateValues(1,atof(argv[2]),atof(argv[3]));
	mc->Update();

	
	vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
	renderer->SetBackground(.1, .2, .3);
 
	vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
	renderWindow->AddRenderer(renderer);
	vtkSmartPointer<vtkRenderWindowInteractor> interactor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
	interactor->SetRenderWindow(renderWindow);

	vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
	mapper->SetInputConnection(mc->GetOutputPort()); //mc->GetOutputPort()

	vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
	actor->SetMapper(mapper);

	renderer->AddActor(actor);

	renderWindow->Render();
	interactor->Start();

	vtkPolyData * out =mc->GetOutput();
	
	//Writer
	vtkPolyDataWriter *writer =vtkPolyDataWriter::New();
	writer ->SetInputConnection(out->GetProducerPort()); 
	writer->SetFileTypeToASCII();
	writer ->SetFileName("saida.vtk");
	writer ->Update();

	//XML Writer

	vtkXMLPolyDataWriter * writer2 = vtkXMLPolyDataWriter::New();
	writer2 ->SetInputConnection(out->GetProducerPort()); 
	writer2->SetDataModeToAscii();
	writer2->SetFileName("saidaXML.vtp");
	writer2->Update();
	

}

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