[vtkusers] Conditional jump or move depends on uninitialized values(s)

[Bill Lorensen]

You will need to build vtk and your example with debug to see the lines
where the errors occur. Looks like you are using VTK5.x. There were many
valgrind errors present in some VTK5.x releases. This could be some of them.



On Mon, Jul 15, 2013 at 7:44 PM, John Haiducek <jhaiduce at gmail.com> wrote:

> Valgrind report attached.
>
> On Mon, Jul 15, 2013 at 5:20 PM, Bill Lorensen <bill.lorensen at gmail.com>
> wrote:
> > Depends on where they occur? Cam you share the valgrind report?
> >
> >
> >
> > On Mon, Jul 15, 2013 at 5:47 PM, John Haiducek <jhaiduce at gmail.com>
> wrote:
> >>
> >> When I run the following program under valgrind I get lots of warnings
> >> saying "Conditional jump or move depends on uninitialized values."
> >> Does this indicate that I'm doing something wrong, or are these false
> >> positives?
> >>
> >> John Haiducek
> >>
> >>
> >> #include "vtkImageData.h"
> >> #include "vtkImageViewer2.h"
> >> #include <vtkRenderWindowInteractor.h>
> >> #include <vtkImageMapper.h>
> >> #include <vtkLookupTable.h>
> >> #include <vtkScalarBarActor.h>
> >> #include <vtkRenderer.h>
> >> #include <vtkImageActor.h>
> >> #include <vtkScalarsToColors.h>
> >> #include <vtkImageMapToWindowLevelColors.h>
> >>
> >> int main(int argc, char *argv[]){
> >>
> >>   vtkImageData*intensityImageData = vtkImageData::New();
> >>   vtkImageViewer2*view=vtkImageViewer2::New();
> >>   vtkImageMapper*imageMapper = vtkImageMapper::New();
> >>   int width=400;
> >>   int height=400;
> >>   double*data=new double[width*height];
> >>
> >>   for(int i=0;i<width*height;i++)
> >>     data[i]=0;
> >>
> >>   intensityImageData->SetDimensions(width,height,1);
> >>   intensityImageData->SetNumberOfScalarComponents(1);
> >>   intensityImageData->SetScalarTypeToDouble();
> >>   intensityImageData->AllocateScalars();
> >>
> >>
> memcpy(intensityImageData->GetScalarPointer(),data,width*height*sizeof(double));
> >>   view->SetInput(intensityImageData);
> >>
> >>   vtkLookupTable*colorMap = vtkLookupTable::New();
> >>   colorMap->SetHueRange(0.4,1.0);
> >>   colorMap->SetValueRange(1.0,1.0);
> >>   colorMap->SetRange(0,1);
> >>   colorMap->Build();
> >>   vtkImageMapToWindowLevelColors*colorMapper=view->GetWindowLevel();
> >>   colorMapper->SetLookupTable(colorMap);
> >>   colorMapper->SetInput(intensityImageData);
> >>   colorMapper->SetLevel(10);
> >>   colorMapper->SetWindow(255);
> >>   vtkScalarBarActor*scalarBar = vtkScalarBarActor::New();
> >>   scalarBar->S#include "vtkImageData.h"
> >> #include "vtkImageViewer2.h"
> >> #include <vtkRenderWindowInteractor.h>
> >> #include <vtkImageMapper.h>
> >> #include <vtkLookupTable.h>
> >> #include <vtkScalarBarActor.h>
> >> #include <vtkRenderer.h>
> >> #include <vtkImageActor.h>
> >> #include <vtkScalarsToColors.h>
> >> #include <vtkImageMapToWindowLevelColors.h>
> >>
> >> int main(int argc, char *argv[]){
> >>
> >>   vtkImageData*intensityImageData = vtkImageData::New();
> >>   vtkImageViewer2*view=vtkImageViewer2::New();
> >>   vtkImageMapper*imageMapper = vtkImageMapper::New();
> >>   int width=400;
> >>   int height=400;
> >>   double*data=new double[width*height];
> >>
> >>   for(int i=0;i<width*height;i++)
> >>     data[i]=0;
> >>
> >>   intensityImageData->SetDimensions(width,height,1);
> >>   intensityImageData->SetNumberOfScalarComponents(1);
> >>   intensityImageData->SetScalarTypeToDouble();
> >>   intensityImageData->AllocateScalars();
> >>
> >>
> memcpy(intensityImageData->GetScalarPointer(),data,width*height*sizeof(double));
> >>   view->SetInput(intensityImageData);
> >>
> >>   vtkLookupTable*colorMap = vtkLookupTable::New();
> >>   colorMap->SetHueRange(0.4,1.0);
> >>   colorMap->SetValueRange(1.0,1.0);
> >>   colorMap->SetRange(0,1);
> >>   colorMap->Build();
> >>   vtkImageMapToWindowLevelColors*colorMapper=view->GetWindowLevel();
> >>   colorMapper->SetLookupTable(colorMap);
> >>   colorMapper->SetInput(intensityImageData);
> >>   colorMapper->SetLevel(10);
> >>   colorMapper->SetWindow(255);
> >>   vtkScalarBarActor*scalarBar = vtkScalarBarActor::New();
> >>   scalarBar->SetLookupTable(colorMap);
> >>   scalarBar->SetTitle("Intensity");
> >>   scalarBar->SetNumberOfLabels(4);
> >>
> >>   view->GetRenderer()->AddActor2D(scalarBar);
> >>
> >>
> >>   view->Render();
> >>
> >>   intensityImageData->Delete();
> >>   view->Delete();
> >>   imageMapper->Delete();
> >>   scalarBar->Delete();
> >>   colorMap->Delete();
> >>
> >>   delete data;
> >>   return 0;
> >> }
> >> etLookupTable(colorMap);
> >>   scalarBar->SetTitle("Intensity");
> >>   scalarBar->SetNumberOfLabels(4);
> >>
> >>   view->GetRenderer()->AddActor2D(scalarBar);
> >>
> >>
> >>   view->Render();
> >>
> >>   intensityImageData->Delete();
> >>   view->Delete();
> >>   imageMapper->Delete();
> >>   scalarBar->Delete();
> >>   colorMap->Delete();
> >>
> >>   delete data;
> >>   return 0;
> >> }
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> >
> > --
> > Unpaid intern in BillsBasement at noware dot com
>



-- 
Unpaid intern in BillsBasement at noware dot com
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