[vtkusers] vtk 5.6.1 on a mac wrapped in Java

[Mark Roden]

Hi Sebastien,

I can't use the windows binary on the mac-- the vtk underpinnings are
still C++, which means that it's compiled into a dll on windows, which
means (as far as I know, and as my experiments confirm), it doesn't
work on a mac.  I have to recompile vtk for the mac directly.  The
java wrappings (the jar) should be identical, though.  Just to be
safe, I'm using the mac-generated jars now.

I am sure that the filenames have no spaces or special strings.  If
you look at the line

     String theString2 = sortedFT.get(i)

I can stop there with the debugger and see the contents of the string,
and it's clean.

For what it's worth, Fred Fred asked about this error message a year
ago, and he got no response:
http://public.kitware.com/pipermail/vtkusers/2009-October/102935.html
I don't know if he was in the same situation as me, though.

Thanks,
Mark

On Thu, Dec 2, 2010 at 5:02 AM, Sebastien Jourdain
<sebastien.jourdain at kitware.com> wrote:
> Hi Mark,
>
> did you try your windows (Java) binary on your mac to see if you get
> the same behavior ?
> Are you sure that on your mac, the filename provided to the reader are
> correct ? (no space or special string ?)
>
> Seb
>
> On Thu, Dec 2, 2010 at 12:01 AM, Mark Roden <mmroden at gmail.com> wrote:
>> Hi all,
>>
>> So I managed to get vtk 5.6.1 to work on a mac with java wrappings on
>> (10.6.5) and with gdcm.
>>
>> The following code is producing errors that I don't see on windows:
>>
>>               IPPSorter sorter = new IPPSorter();
>>                sorter.SetComputeZSpacing(true);
>>                sorter.SetZSpacingTolerance(0.000001);
>>                Boolean sorted = sorter.Sort(theSeriesFiles);
>>                //sorter.Sort(ft);
>>
>>                //have to make a vtk string array
>>                FilenamesType sortedFT = sorter.GetFilenames();
>>                long theSize = sortedFT.size();
>>                vtkStringArray sa = new vtkStringArray();
>>                for (int j = 0; j < theSize; j++) {
>>                    String theString2 = sortedFT.get(j);
>>                    sa.InsertNextValue(sortedFT.get(j));
>>                }
>>                gdcmReader.SetFileNames(sa);
>>
>>                gdcmReader.Update();
>>
>>                imageData = gdcmReader.GetOutput();
>>
>>                //make sure that we're getting spacing and orientation info
>>                double[] spacing = imageData.GetSpacing();
>>                spacing[2] = sorter.GetZSpacing();
>>                imageData.SetSpacing(spacing);
>>                double[] origin = imageData.GetOrigin();
>>                double[] bounds = imageData.GetBounds();
>>                double[] extraOrigin = {0,0,0};//because vtk will only
>> flip about 0,0,0
>>
>>                vtkImageChangeInformation imageSpacingChange = new
>> vtkImageChangeInformation();
>>                imageSpacingChange.SetInput(imageData);
>>                imageSpacingChange.SetOutputSpacing(spacing[0],
>> spacing[1], spacing[2]);
>>                imageSpacingChange.SetOutputOrigin(extraOrigin);
>>                imageSpacingChange.Update();
>>
>> Once the last line is hit, the following error is reported in netbeans:
>>
>> ERROR: In /Users/mmroden/Documents/src/vtk-5.6.1/VTK-5.6.1/Filtering/vtkDemandDrivenPipeline.cxx,
>> line 802
>> vtkStreamingDemandDrivenPipeline (0x135884c10): Input for connection
>> index 0 on input port index 0 for algorithm
>> vtkImageChangeInformation(0x1358853c0) is NULL, but a vtkImageData is
>> required.
>>
>> This code works perfectly well in Windows, and the spacing, origin,
>> and bounds arrays all match the values in windows when loading the
>> same series there.  So, I know that the gdcm side of things is
>> working, at least to the point that those arrays are being reported
>> correctly.
>>
>> Because the pipeline is breaking there, nothing else is working.  What
>> can I do to fix it?
>>
>> Thanks,
>> Mark
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