[vtkusers] vtkPolyDataNormals-access violation reading location..

[Amy Squillacote]

Hi Kiv,

Maybe this is just a typo, but you haven't set a condition where your 
for loop will stop. Instead of "for(int i=0;k;i++)", try "for(int 
i=0;i<k;i++)".

- Amy

kývýlcým helhel wrote:
> Hi everyone,
> I wrote the code below to reach the normals one by one,
>
>
> vtkPolyDataNormals *norm= vtkPolyDataNormals::New();
>     norm->SetInput(pd);
>     norm->FlipNormalsOff();
>     norm->SetComputePointNormals(1);
>     norm->Update();
>     vtkPolyData *vtknorm=norm->GetOutput();
>     vtkPointData *normpoints=vtknorm->GetPointData();
>     vtkDataArray *arraynorm= normpoints->GetNormals();
>     int k=vtknorm->GetNumberOfPoints();
>     for(int i=0;k;i++)
>     {  
>         double* nrm= arraynorm->GetTuple3(i);
>         //nrm=arraynorm->GetTuple3(i);
>         printf("%f %f %f \n",(float)nrm[0],(float)nrm[1],(float)nrm[2]);
>     }
>
> k is 307200, ý have 307200 points in vtkPolyData structure.
> but in this double* nrm= arraynorm->GetTuple3(i); I have access 
> violation exception.I must  find the normals of each point.Please help me
>
> Kiv
>
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-- 
Amy Squillacote                    Phone: (256) 726-4839
Computer Scientist                 Fax: (256) 726-4806
CFD Research Corporation           Web: http://www.cfdrc.com
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