Hello I've searched far and wide and seen some questions on this, but no 
answers I could make use of. One link here: 
http://groups.google.tt/group/comp.graphics.apps.gimp/browse_thread/thread/f46cc17a1874caea
 has an answer that I don't know enough scheme to make use of.

Basically I want to input based on a file glob a filename such as 0001.jpg, add 
a vertical guide at a certain percentage, say 50%, and then guillotine it and 
save the resulting images as 0001a.jpg and 0001b.jpg

I started with the http://www.gimp.org/tutorials/Basic_Batch/ basic batch 
tutorial and tried to modify it for my needs, but without knowing scheme and 
not being able to figure out enough I didn't know how to assign the right image 
and drawable and save the resulting parts to the filenames I want.

Here is what I tried:

  (define (batch-guillotine pattern direction percent)
  (let* ((filelist (cadr (file-glob pattern 1))))
    (while (not (null? filelist))
           (let* ((filename (car filelist))
                  (image (car (gimp-file-load RUN-NONINTERACTIVE
                                              filename filename)))
                  (drawable (car (gimp-image-get-active-layer image))))
             (script-fu-guide-new-percent 0 image drawable direction percent)
             (plug-in-guillotine 0 image drawable)
             (gimp-file-save RUN-NONINTERACTIVE
                             image drawable filename filename)
             (gimp-image-delete image))
           (set! filelist (cdr filelist)))))

Can anyone finish it for me? I have gotten other single plugins to work in 
batch mode like this calling something like 
$ gimp -i -b '(batch-guillotine "*.jpeg" 1 50)' -b '(gimp-quit 0)' , but 
nothing so complex as this one. I'm running Gimp 2.6.1 on Ubuntu 8.10 so if 
someone wrote a python script instead to do the same thing I could figure out 
how to run that if someone pointed me to the docs. Thanks

Taxman


      
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