Volume 2 Chapter 6 Files Menu FETCH-FRAGMENT

Function

FETCH-FRAGMENT is used to fetch an already stored fragment for re-use.

Remarks

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.

Example

Suppose that you want to fetch a fragment from a set of nine already stored.

Select FETCH-FRAGMENT

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.)

Select structure 5 in the display

The display of stored fragments is replaced by structure 5 expanded to its original size - see (ii) below.

Note that you can type the number of the structure you require, from the FILES menu, e.g. instead of using the cursor to select FETCH-FRAGMENT, then select structure 5, you can

Type FETCH 5

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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Volume 2 Chapter 6 Files Menu HELP .