Hi Bob,

 

I think you are correct on both points.

I think you can only add objects to a tab file using MITAB at the time the file is created – you certainly can’t delete or edit them in an existing as far as I know and I’m not even sure you can append to a file either.

 

From Danielle a while ago:

<< The library is designed so that it could eventually support random
read/write access some day (hence all the checks for
read-onle/write-only everywhere in the code), but random access was
never implemented simply because that would have added a non trivial
amount of work, and that was not a priority at the time... and never has
been a priority for me or any paying client since then.>>

 

Less sure on the balance RTREE – but seem to remember reading something about this as well

 

Best wishes

James

 


From: bob young [mailto:[EMAIL PROTECTED]
Sent: 11 November 2005 06:36
To: [email protected]
Subject: [mitab] Editing existing MapInfo tables

 

Dear List

My understanding from previous postings on the list is that MITAB will
not allow you to edit an existing table that was created by MapInfo.

I further seem to remember that the RTREE is not balanced, ie the depth
of the tree might be much deeper where there is a lot of geometry than
elsewhere.

Is it possible someone could comment on both these points please?

Regards


Bob Young
www.MapsByDesign.co.uk

--
bob young



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