[Kwiver-users] Save vital type to disk

[Matthew Leotta]

I would not add any file I/O fuactions directly to the Vital type classes.  You can add stream operators (that is, >> and <<) along side the type classes.  I believe homography already has those.  Currently we are putting file I/O functions in separate files in "kwiver/vital/io”.  Look at camera_io.h as an example.  These I/O functions should mostly just validate file object and then call the stream operators. 

> On Sep 6, 2017, at 10:38 AM, Matt Brown <matt.brown at kitware.com> wrote:
> 
> My current interest is in reading/writing a vital/homography from/to disk. Note, this is the simpler homography without other metadata in it (i.e., not homography_f2f). I would like to create a base class  methods save_to_file and read_from_file, but I have a few questions:
> 
> Should this go in the base class or in homography_?
> It seems to me that this might be a useful generic facility across all vital types, so maybe we should take a moment and consider what the member function names should be and their scope.
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