Hi all,

A quick comment first, it has been a couple of years since I have used
osgdem, and it is great to see it is going so well (as VPB). Thanks
Robert.

I have been experimenting with the various options for patching an
existing db. One of things I need to be able to is to add more optional
data sets. When I tried to do this  vpbmaster complained that the new
options were not compatible with the existing db. 

I couldn't see why what I was trying to do shouldn't work so I simply
commented out the check on optional layers in the
BuildOptions#compatible method. Once this was done, I could successfully
add new optional layer sets with no obvious issues.

Is my 'fix' something that can be included or I am missing something
that could lead to problems if this functionality is allowed?

I have also changed the code to allow changing layer inheritance for a
new optional sets. I haven't experimented with this much yet, but it
seems to work ok. Should I expect problems with this?

Cheers,

Brad



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