[vtkusers] some questions about cells, file formats, etc

[nuno.jf]

Sure, and thank you for your help!
Sorry for some confusion in my code:
(Btw, I noticed that When I set mc->ComputeNormalsOff() instead of 
mc->ComputeNormalsOn() , I don't get this error)



// Includes for lots of things
//VTK
#include "vtkSmartPointer.h"
#include "vtkPolyData.h"
#include "vtkPolyDataReader.h"
#include "vtkStructuredPointsReader.h"
#include "vtkMarchingCubes.h"
#include "vtkImageMarchingCubes.h"
#include "vtkGaussianSplatter.h"
#include "vtkImageGaussianSmooth.h"
#include "vtkPolyDataConnectivityFilter.h"
#include "vtkContourFilter.h"
#include "vtkGaussianSplatter.h"
#include "vtkPolyDataWriter.h"
#include "vtkGeometryFilter.h"
#include "vtkStructuredPoints.h"
#include "vtkThreshold.h"
//renderização
#include "vtkPolyDataMapper.h"
#include "vtkActor.h"
#include "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkImageSobel3D.h"

#include "vtkXMLPolyDataWriter.h"

// main function

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->ComputeScalars();
	mc->ComputeGardientsOn();
	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 = vtkPolyData::New();
	out = mc->GetOutput();
	out ->Update();

	//Writer
	vtkPolyDataWriter *writer =vtkPolyDataWriter::New();
	writer ->SetInput(out); 
	writer->SetFileTypeToASCII();
	writer ->SetFileName("output.vtk");
	writer ->Update();

	//XML Writer

	vtkXMLPolyDataWriter * writer2 = vtkXMLPolyDataWriter::New();
	writer2->SetInput(out);
	writer2->SetDataModeToAscii();
	writer2->SetFileName("outputXML.vtp");
	writer2->Update();
	


}

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