[vtkusers] New reader for VTK - vtkMINCImageReader
dgobbi at atamai.com
Fri Aug 18 14:43:07 EDT 2006
David Gobbi wrote:
> Sean McBride wrote:
>> On 2006-08-17 18:06, David Gobbi said:
>>>> Is it based on MINC 1.4 or 2.0?
>>>> Did you collaborate with Leila Baghdadi on this? Or is this a
>>> This one is brand new code, based on MINC 1.x, and it cannot read
>>> MINC 2.x files.
>>> It actually uses the netcdf libraries directly rather than using the
>>> minc libraries. I didn't really have any desire to convert the minc
>>> library to CMake, or to try to convince Kitware to incorporate the
>>> minc library into Utilities.
>>> Since VTK already includes netcdf, it seemed much easier to write a
>>> reader that uses netcdf directly.
>> I see, that makes good sense. I look forward to trying it out once I
>> get a chance! Are there any features missing or unfortunate
>> omissions due to dropping down to the netcdf level?
> The only compromise is that my vtkMINCImageReader doesn't have all the
> data conversion functions that MINC has. This means there are two
> 1) The data type (byte, short, float) of the vtkMINCReader's output is
> always the same as in the file. You can't do a data conversion while
> reading the file.
> 2) The dimensions are always reordered so that the MINC
> x[space/frequency] dimensions becomes the VTK x dimension, and
> similarly for y and z. You can't choose an arbitrary dimension
> These are issues that I might address in the future.
Oh, and there is one other restriction. The minc library will
automatically unzip a minc that ends in ".gz" to the /tmp directory
before reading it. This isn't a feature I'm particularly fond of, so I
doubt that I will ever implement it in my reader.
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