[vtkusers] vtk 5.6.1 on a mac wrapped in Java

[Sebastien Jourdain]

I was talking about your Java code that was using VTK, not VTK itself.

Moreover, I think that you can not inherit from VTK classes in Java...

Seb

On Thu, Dec 2, 2010 at 9:17 AM, Mark Roden <mmroden at gmail.com> wrote:
> 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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>>
>