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|
; The GIMP -- an image manipulation program
; Copyright (C) 1995 Spencer Kimball and Peter Mattis
;
; Circuit board effect
; Copyright (c) 1997 Adrian Likins
; aklikins@eos.ncsu.ed
;
; Genrates what looks a little like the back of an old circuit board.
; Looks even better when gradmapped with a suitable gradient.
;
; This script doesnt handle or color combos well. ie, black/black
; doesnt work..
; The effect seems to work best on odd shaped selections because of some
; limitations in the maze codes selection handling ablity
;
;
; This program is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 2 of the License, or
; (at your option) any later version.
;
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program; if not, write to the Free Software
; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
(define (script-fu-circuit image
drawable
mask-size
seed
remove-bg
keep-selection
separate-layer)
(let* (
(type (car (gimp-drawable-type-with-alpha drawable)))
(image-width (car (gimp-image-width image)))
(image-height (car (gimp-image-height image)))
)
(gimp-context-push)
(gimp-image-undo-group-start image)
(gimp-layer-add-alpha drawable)
(if (= (car (gimp-selection-is-empty image)) TRUE)
(begin
(gimp-selection-layer-alpha drawable)
(set! active-selection (car (gimp-selection-save image)))
(set! from-selection FALSE))
(begin
(set! from-selection TRUE)
(set! active-selection (car (gimp-selection-save image)))))
(set! selection-bounds (gimp-selection-bounds image))
(set! select-offset-x (cadr selection-bounds))
(set! select-offset-y (caddr selection-bounds))
(set! select-width (- (cadr (cddr selection-bounds)) select-offset-x))
(set! select-height (- (caddr (cddr selection-bounds)) select-offset-y))
(if (= separate-layer TRUE)
(begin
(set! effect-layer (car (gimp-layer-new image
select-width
select-height
type
"effect layer"
100
NORMAL-MODE)))
(gimp-image-add-layer image effect-layer -1)
(gimp-layer-set-offsets effect-layer select-offset-x select-offset-y)
(gimp-selection-none image)
(gimp-edit-clear effect-layer)
(gimp-selection-load active-selection)
(gimp-edit-copy drawable)
(let ((floating-sel (car (gimp-edit-paste effect-layer FALSE))))
(gimp-floating-sel-anchor floating-sel)
)
(gimp-image-set-active-layer image effect-layer ))
(set! effect-layer drawable)
)
(set! active-layer effect-layer)
(if (= remove-bg TRUE)
(gimp-context-set-foreground '(0 0 0))
(gimp-context-set-foreground '(14 14 14)))
(gimp-selection-load active-selection)
(plug-in-maze 1 image active-layer 5 5 TRUE 0 seed 57 1)
(plug-in-oilify 1 image active-layer mask-size 0)
(plug-in-edge 1 image active-layer 2 1 0)
(if (= type RGBA-IMAGE)
(gimp-desaturate active-layer))
(if (and
(= remove-bg TRUE)
(= separate-layer TRUE))
(begin
(gimp-by-color-select
active-layer
'(0 0 0)
15
2
TRUE
FALSE
10
FALSE)
(gimp-edit-clear active-layer)))
(if (= keep-selection FALSE)
(gimp-selection-none image))
(gimp-image-remove-channel image active-selection)
(gimp-image-set-active-layer image drawable)
(gimp-image-undo-group-end image)
(gimp-displays-flush)
(gimp-context-pop)))
(script-fu-register "script-fu-circuit"
_"_Circuit..."
"Fills the current selection with something that looks
vaguely like a circuit board."
"Adrian Likins <adrian@gimp.org>"
"Adrian Likins"
"10/17/97"
"RGB* GRAY*"
SF-IMAGE "Image" 0
SF-DRAWABLE "Drawable" 0
SF-ADJUSTMENT _"Oilify mask size" '(17 3 50 1 10 0 1)
SF-ADJUSTMENT _"Circuit seed" '(3 1 3000000 1 10 0 1)
SF-TOGGLE _"No background (only for separate layer)" FALSE
SF-TOGGLE _"Keep selection" TRUE
SF-TOGGLE _"Separate layer" TRUE)
(script-fu-menu-register "script-fu-circuit"
_"<Image>/Script-Fu/Render")
|
