[vtk-developers] vtkStringArray and vtkImageReader

[David Gobbi]

I'll take a look at ITK IO.  Right now I use some python code to figure 
out filenames and decide which reader to use, and it works well for 
that.  I have an app that I need to write in pure C++, though, and need 
the user to be able to highlight a group of files in a file browser and 
load them as a volume.  Surprisingly, that is a very difficult thing to 
accomplish in VTK.

Lorensen, William E (GE, Research) wrote:

>David,
>
>This is an excellent idea. We do this in itk. The file name generation is actually separate from the series readers. We always pass in lists of strings. Then we have series filenames generators. Looks like you could do this an still maintain the current API.
>
>In itk we have:
>NumericSeriesFileNames
>RegularExpressionFileNames
>Dicom(GDCM)SeriesFileNames
>and
>ArchetypeSeriesFileNames
>
>The latter is particularly cool. You give it one file name from a set of filenames and it generates the set of names.
>
>Actually, the itk I/O mechanism itself is very different in itk. itk uses an IO Factory that discovers which file specific reader to use. Also, we separate series reading from image reading. The series reader invokes an image reader for each file. We do not have to decide which reader to use with which filename, the factory does that.
>
>Bill
>
>
>
>-----Original Message-----
>From: vtk-developers-bounces+lorensen=crd.ge.com at vtk.org
>[mailto:vtk-developers-bounces+lorensen=crd.ge.com at vtk.org]On Behalf Of
>David Gobbi
>Sent: Thursday, February 02, 2006 4:08 PM
>To: VTK Developers
>Subject: [vtk-developers] vtkStringArray and vtkImageReader
>
>
>Hi All,
>
>Over the years I've run into problems with vtkImageReader several times 
>because I have a set of files that aren't a nice, numbered sequence.
>
>Now that VTK has a vtkStringArray, it would be nice if vtkImageReader 
>had a SetFileNameArray() method to allow a user to set an arbitrary list 
>of files to read.
>
>Has anyone started working on something similar?
>
> - David
>
>
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