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FETCH-FRAGMENT is used to fetch an already stored fragment for re-use.
To fetch a fragment from an earlier session in the VAX/VMS, Silicon Graphics and SUN implementations, you must remember to use the same problem name as before when starting your new session.
Suppose that you want to fetch a fragment from a set of nine already stored.
The program sounds an alert as a fail-safe, to remind you that the current structure in the drawing area will be erased if you fetch a fragment:
FETCH-FRAGMENT will erase the current fragment. Are you sure you wish to continue [Y]?
If you type "Y", the current structure is erased from the drawing area, and a numbered menu of the available stored fragments is then drawn - see (i) on below.
The program then prompts:
Please use the cursor to select required structure: (Select "CANCEL" if you don't want to FETCH structure.)
The display of stored fragments is replaced by structure 5 expanded to its original size - see (ii) below.
This saves the time taken to draw all the other fragments that you have stored.
If you have no structures in the SAVE file, when you select FETCH-FRAGMENT the program will respond:
ERROR - There are no entries in the file
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