mirror of https://github.com/GNOME/gimp.git
232 lines
7.0 KiB
Scheme
232 lines
7.0 KiB
Scheme
; The GIMP -- an image manipulation program
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; Copyright (C) 1995 Spencer Kimball and Peter Mattis
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;
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; This program is free software; you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation; either version 2 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program; if not, write to the Free Software
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; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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;
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; 3dTruchet - a script to create Truchet patterns
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; by Adrian Likins <aklikins@eos.ncsu.edu>
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; http://www4.ncsu.edu/~aklikins/
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; version about .8 give or take
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;
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; Lots of thanks to Quartic for his help.
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;
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;
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; The utility of this script is left as an exercise for the reader.
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(define (center-ellipse img
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cx
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cy
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rx
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ry
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op
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aa
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feather
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frad)
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(gimp-ellipse-select img (- cx rx) (- cy ry) (+ rx rx) (+ ry ry)
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op aa feather frad))
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(define (use-tile img
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drawable
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height
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width
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img2
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drawable2
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xoffset
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yoffset)
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(gimp-edit-copy drawable2)
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(let ((floating-sel (car (gimp-edit-paste drawable FALSE))))
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(gimp-layer-set-offsets floating-sel xoffset yoffset)
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(gimp-floating-sel-anchor floating-sel)
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)
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)
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(define (create-tile img
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drawable1
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drawable2
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size
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thickness
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backcolor
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begincolor
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endcolor
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supersample)
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(let* (
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(half-thickness (/ thickness 2))
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(outer-radius (+ (/ size 2) half-thickness))
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(inner-radius (- (/ size 2) half-thickness))
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)
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(gimp-selection-all img)
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(gimp-context-set-background backcolor)
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(gimp-edit-fill drawable1 BACKGROUND-FILL)
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(let* (
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(tempSize (* size 3))
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(temp-img (car (gimp-image-new tempSize tempSize RGB)))
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(temp-draw (car (gimp-layer-new temp-img tempSize tempSize
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RGB-IMAGE "Jabar" 100 NORMAL-MODE)))
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(temp-draw2 (car (gimp-layer-new temp-img tempSize tempSize
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RGB-IMAGE "Jabar" 100 NORMAL-MODE))))
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(gimp-image-undo-disable temp-img)
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(gimp-image-add-layer temp-img temp-draw 0)
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(gimp-image-add-layer temp-img temp-draw2 0)
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(gimp-context-set-background backcolor)
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(gimp-edit-fill temp-draw BACKGROUND-FILL)
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(gimp-edit-fill temp-draw2 BACKGROUND-FILL)
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;weird aint it
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(gimp-context-set-background begincolor)
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(gimp-context-set-foreground endcolor)
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(center-ellipse temp-img size size outer-radius outer-radius
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CHANNEL-OP-REPLACE TRUE FALSE 0)
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(center-ellipse temp-img size size inner-radius inner-radius
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CHANNEL-OP-SUBTRACT TRUE FALSE 0)
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(center-ellipse temp-img (* size 2) (* size 2) outer-radius outer-radius
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CHANNEL-OP-ADD TRUE FALSE 0)
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(center-ellipse temp-img (* size 2) (* size 2) inner-radius inner-radius
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CHANNEL-OP-SUBTRACT TRUE FALSE 0)
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(gimp-edit-blend temp-draw FG-BG-RGB-MODE NORMAL-MODE
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GRADIENT-SHAPEBURST-ANGULAR 100 0 REPEAT-NONE FALSE
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supersample 3 .2 TRUE
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size size (* size 2) (/ size 2))
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(center-ellipse temp-img size (* size 2) outer-radius outer-radius
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CHANNEL-OP-REPLACE TRUE FALSE 0)
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(center-ellipse temp-img size (* size 2) inner-radius inner-radius
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CHANNEL-OP-SUBTRACT TRUE FALSE 0)
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(center-ellipse temp-img (* size 2) size outer-radius outer-radius
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CHANNEL-OP-ADD TRUE FALSE 0)
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(center-ellipse temp-img (* size 2) size inner-radius inner-radius
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CHANNEL-OP-SUBTRACT TRUE FALSE 0)
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;(gimp-edit-fill temp-img temp-draw2 BACKGROUND-FILL)
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(gimp-edit-blend temp-draw2 FG-BG-RGB-MODE NORMAL-MODE
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GRADIENT-SHAPEBURST-ANGULAR 100 0 REPEAT-NONE FALSE
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supersample 3 .2 TRUE
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size size (* size 2) (* size 2))
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(gimp-selection-none temp-img)
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(gimp-image-resize temp-img size size (- size) (- size))
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; woo hoo it works....finally...
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(gimp-selection-all temp-img)
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(gimp-edit-copy temp-draw)
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(let ((floating-sel (car (gimp-edit-paste drawable2 FALSE))))
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(gimp-floating-sel-anchor floating-sel))
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(gimp-edit-copy temp-draw2)
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(let ((floating-sel (car (gimp-edit-paste drawable1 FALSE))))
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(gimp-floating-sel-anchor floating-sel))
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;(let ((drawble (car (gimp-drawable-transform-flip-simple img drawable1
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; ORIENTATION-HORIZONTAL
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; TRUE 0 TRUE)))))
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;(gimp-display-new temp-img)
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(gimp-image-delete temp-img)
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)
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)
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)
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(define (script-fu-3dtruchet size
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thickness
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backcolor
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begincolor
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endcolor
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supersample
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xtiles
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ytiles)
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(let* (
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(width (* size xtiles))
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(height (* size ytiles))
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(img (car (gimp-image-new width height RGB)))
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(tile (car (gimp-image-new size size RGB)))
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(layer-one (car (gimp-layer-new img width height
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RGB-IMAGE "Rambis" 100 NORMAL-MODE)))
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(tiledraw1 (car (gimp-layer-new tile size size
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RGB-IMAGE "Johnson" 100 NORMAL-MODE)))
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(tiledraw2 (car (gimp-layer-new tile size size
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RGB-IMAGE "Cooper" 100 NORMAL-MODE)))
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(Xindex 0)
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(Yindex 0))
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(gimp-context-push)
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(gimp-image-undo-disable img)
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(gimp-image-undo-disable tile)
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(gimp-image-add-layer img layer-one 0)
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(gimp-image-add-layer tile tiledraw1 0)
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(gimp-image-add-layer tile tiledraw2 0)
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;just to look a little better
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(gimp-selection-all img)
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(gimp-context-set-background backcolor)
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(gimp-edit-fill layer-one BACKGROUND-FILL)
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(gimp-selection-none img)
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(create-tile tile tiledraw1 tiledraw2 size thickness
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backcolor begincolor endcolor supersample)
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(while (<= Xindex xtiles)
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(while (<= Yindex ytiles)
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(if (= (rand 2) 0)
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(use-tile img layer-one height width tile
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tiledraw1 (* Xindex size) (* Yindex size))
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(use-tile img layer-one height width tile
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tiledraw2 (* Xindex size) (* Yindex size))
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)
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(set! Yindex (+ Yindex 1))
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)
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(set! Yindex 0)
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(set! Xindex (+ Xindex 1))
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)
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(gimp-image-delete tile)
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(gimp-image-undo-enable img)
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(gimp-display-new img)
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(gimp-context-pop)))
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(script-fu-register "script-fu-3dtruchet"
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_"3_D Truchet..."
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"3D Truchet pattern"
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"Adrian Likins <aklikins@eos.ncsu.edu>"
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"Adrian Likins"
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"1997"
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""
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SF-ADJUSTMENT _"Block size" '(64 5 1000 1 10 0 1)
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SF-ADJUSTMENT _"Thickness" '(12 2 100 1 10 0 1)
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SF-COLOR _"Background color" '(255 255 255)
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SF-COLOR _"Start blend" '(0 0 0)
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SF-COLOR _"End blend" '(255 255 255)
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SF-TOGGLE _"Supersample" TRUE
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SF-ADJUSTMENT _"Number of X tiles" '(5 1 1000 1 10 0 1)
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SF-ADJUSTMENT _"Number of Y tiles" '(5 1 1000 1 10 0 1))
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(script-fu-menu-register "script-fu-3dtruchet"
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"<Toolbox>/Xtns/Patterns")
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