;===============================================================
;== GIMP Add Guides for Rule of Thirds ==
;== Copyright (c) 2006 Gregory M. Ross ==
;===============================================================

(define (script-fu-Rule-of-Thirds-guides img drawable)

(let* ((ImageW (car (gimp-drawable-width drawable)))
(ImageH (car (gimp-drawable-height drawable)))
(Vert_Offset (car (gimp-drawable-offsets drawable)))
(Horz_Offset (cadr (gimp-drawable-offsets drawable)))


(Vert_1 (+ (/ ImageW 3)Vert_Offset))
(Horz_1 (+ (/ ImageH 3)Horz_Offset))
(Vert_2 (+ (* (/ ImageW 3) 2)Vert_Offset))
(Horz_2 (+ (* (/ ImageH 3) 2)Horz_Offset))
)

(gimp-image-undo-group-start img)
(gimp-image-add-vguide img Vert_1)
(gimp-image-add-hguide img Horz_1)
(gimp-image-add-vguide img Vert_2)
(gimp-image-add-hguide img Horz_2)
(gimp-image-undo-group-end img)
(gimp-displays-flush)))


(script-fu-register "script-fu-Rule-of-Thirds-guides"
"<Image>/View/Rule of Thirds Guides"
"Add Guides following the Rule of Thirds"
"Gregory M. Ross"
"Gregory M. Ross"
"September 2006"
""
SF-IMAGE "Image" 0
SF-DRAWABLE "Drawable" 0)

Thanks PhotoMaster, i threw it right into my scripts folder. =)
Its a handy script for creating crops with digital images...enhances the viewers attention if the objects you want them to see are on those guide intersections. =)
Just thought i would throw that explanation in there for anyone who didn't know what Rules of Thirds meant.

Thanks again... wonderful script

This script, and my others, are available on the Gimp Registry at http://registry.gimp.org/.

I saved the script and also the Golden Ratio guides from this search. I don't know what to do with the results. Must have something to do with photos (?).

I've read just about anything and everything I can find about the golden ratio and used it in designing clothing patterns.

Late edit: Never mind, I'm doing the Rubik's Cube tut and see where it goes.

I love how you put your O in the cube O! =)
Thanks PhotoMaster.

The rule of thirds is basically a guide that says when you keep your subject along these theoretical lines to make your images more interesting. It's big in photography, but also in painting and sketching. It's a good tool for other things as well.

Thanks for the script. I fixed the problem with help of it. Everybody recommend to use it.

what do i name the script after i copy it

i named mine - "pm-rule-of-thirds.scm"

If anyone is looking for the rule of thirds script look here:

https://gimper.net/resources/new-guides ... hirds.572/

It works for Gimp 2.10... it's the green download button, top right corner. You can't miss it.