[vtkusers] vtkStructuredPointsWriter writes a blank file

[Matheus Viana]

They are in separate files.

*Matheus Viana*
*Postdoctoral Research Employee*
*Developmental and Cell Biology*
*University of California Irvine*




2014-06-19 16:21 GMT-03:00 Bill Lorensen <bill.lorensen at gmail.com>:

> Are the images all in one file? Or separate files for each image?
>
>
> On Thu, Jun 19, 2014 at 1:56 PM, Matheus Viana <vianamp at gmail.com> wrote:
> > Dear David,
> >
> > I tried to use XMLImageDataWriter and it seems to be working. However,
> the
> > original VTK file that has 2Gb is then saved as a vti file that has only
> > 10Mb. I think this is fine because my data is very sparse with a lot of
> > zeros. I can make sure that it is working well because Paraview crashes
> when
> > I tried to load the file. I'll check it again later on. Anyway, do you
> think
> > the bug is in the StructuredPointsWriter?
> >
> > Bill, I tried to not specify the data extent, but in this case the reader
> > reads only the first image of the sequence. Is there anything else I
> have to
> > set up?
> >
> > Matheus Viana
> > Postdoctoral Research Employee
> > Developmental and Cell Biology
> > University of California Irvine
> >
> >
> >
> >
> > 2014-06-19 14:20 GMT-03:00 Bill Lorensen <bill.lorensen at gmail.com>:
> >
> >> The data extents you specified will produce a zero length structured
> >> points.
> >>
> >> For the tiff reader, you need not specify the extents if you want all
> >> of the data. And I'm not sure what the other methods will do in the
> >> tiff reader.
> >> vtkTIFFReader *TIFFReader = vtkTIFFReader::New();
> >>     TIFFReader ->
> SetFilePrefix("/Users/matheusviana/Desktop/images/im");
> >>     TIFFReader -> SetFilePattern("%s%04d.tif");
> >>     TIFFReader -> Update();
> >>
> >> On Thu, Jun 19, 2014 at 8:14 AM, matheus_viana <vianamp at gmail.com>
> wrote:
> >> > Guys, I'd like to know if there is any error in this code below. The
> >> > code
> >> > works fine for small size dataset, but it writes a blank file when the
> >> > dataset has more than 2Gb. I'm working on 64bit OSX.
> >> >
> >> > Thanks a lot.
> >> >
> >> > int main() {
> >> >     vtkTIFFReader *TIFFReader = vtkTIFFReader::New();
> >> >     TIFFReader -> SetDataByteOrderToBigEndian();
> >> >     TIFFReader -> SetDataExtent(0,0,0,0,0,3959);
> >> >     TIFFReader ->
> >> > SetFilePrefix("/Users/matheusviana/Desktop/images/im");
> >> >     TIFFReader -> SetFilePattern("%s%04d.tif");
> >> >     TIFFReader -> SetDataScalarTypeToUnsignedShort();
> >> >     TIFFReader -> Update();
> >> >
> >> >     vtkStructuredPointsWriter *ImageDataWriter =
> >> > vtkStructuredPointsWriter::New();
> >> >     ImageDataWriter -> SetFileType(VTK_BINARY);
> >> >     ImageDataWriter -> SetInput(TIFFReader -> GetOutput());
> >> >     ImageDataWriter -> SetFileName("Result.vtk");
> >> >     ImageDataWriter -> Write();
> >> >
> >> >     return 1;
> >> > }
> >> >
> >> >
> >> >
> >> > --
> >> > View this message in context:
> >> >
> http://vtk.1045678.n5.nabble.com/vtkStructuredPointsWriter-writes-a-blank-file-tp5727536.html
> >> > Sent from the VTK - Users mailing list archive at Nabble.com.
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> >> --
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> >
> >
>
>
>
> --
> Unpaid intern in BillsBasement at noware dot com
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