[vtkusers] vtkStructuredPointsWriter writes a blank file

[Bill Lorensen]

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
>> >> > Sent from the VTK - Users mailing list archive at Nabble.com.
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