[vtkusers] how to change image order

[Lic. José M. Rodriguez Bacallao]

yes, with GDCM I can read metadata but the point is that I need to
reorder the images without the need to read the files again because
I'll could read big series, say 200-500 slices and I think that disk
cache is not enough.

> Yes, the reader will have to read the files again.  Unless it is a
> really large series, the files will still be in the disk cache.   Does
> GDCM have something that will allow you to read just the DICOM
> metadata without reading the images themselves?  If it does, then you
> can use the metadata to sort the files before you read them.
>
>    David