mirror of https://github.com/GNOME/gimp.git
88 lines
2.8 KiB
Scheme
88 lines
2.8 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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; Land --- create a pattern that resembles a Topographic map
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; Copyright (C) 1997 Adrian Karstan Likins
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; aklikins@eos.ncsu.edu
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;
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;
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; This script works on the current gradient you have loaded.
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; Some suggested gradients:
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; Land (produces a earthlike map)
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; Brushed_aluminum (looks like the moon)
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;
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;
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; Thanks to Quartic for helping me debug this thing.
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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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(define (script-fu-land width height seed detail landheight seadepth xscale yscale gradient)
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(let* (
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(img (car (gimp-image-new width height RGB)))
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(layer-one (car (gimp-layer-new img width height RGB "bottom" 100 NORMAL)))
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)
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(gimp-gradients-set-active gradient)
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(gimp-image-disable-undo img)
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(gimp-image-add-layer img layer-one 0)
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(plug-in-solid-noise 1 img layer-one TRUE FALSE seed detail xscale yscale)
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(plug-in-c-astretch 1 img layer-one)
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(set! layer-two (car (gimp-layer-copy layer-one TRUE)))
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(gimp-image-add-layer img layer-two -1)
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(gimp-image-set-active-layer img layer-two)
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(plug-in-gradmap 1 img layer-two)
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(gimp-by-color-select layer-one '(190 190 190) 55 REPLACE FALSE FALSE 0 FALSE)
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(plug-in-bump-map 1 img layer-two layer-one 135.0 35 landheight 0 0 0 0 TRUE FALSE 0)
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;(plug-in-c-astretch 1 img layer-two)
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(gimp-selection-invert img)
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(plug-in-bump-map 1 img layer-two layer-one 135.0 35 seadepth 0 0 0 0 TRUE FALSE 0)
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;(plug-in-c-astretch 1 img layer-two)
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; uncomment the next lie if you wnat to keep a selrction of the "land"
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(gimp-selection-none img)
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(gimp-display-new img)
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(gimp-image-enable-undo img)
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))
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(script-fu-register "script-fu-land"
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"<Toolbox>/Xtns/Script-Fu/Patterns/Land"
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"A Topgraphic Map 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-VALUE "Image Width" "256"
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SF-VALUE "Image Height" "256"
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SF-VALUE "Random Seed" "32"
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SF-VALUE "Detail Level" "4"
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SF-VALUE "Land height" "60"
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SF-VALUE "Sea depth" "4"
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SF-VALUE "X Scale" "4.0"
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SF-VALUE "Y Scale" "4.0"
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SF-GRADIENT "gradient" "Land_1")
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