[vtkusers] vtkStructuredPointsWriter writes a blank file

[Matheus Viana]

I got the same result, blank file.

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




2014-06-19 17:35 GMT-03:00 Bill Lorensen <bill.lorensen at gmail.com>:

> So, lets say each image is 512 x 512, and you have 3960 images,
> TIFFReader -> SetDataExtent(0,511,0,511,0,3959);
>
> On Thu, Jun 19, 2014 at 3:29 PM, Matheus Viana <vianamp at gmail.com> wrote:
> > 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
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