ee6dad2eb5
2003-08-26 Sven Neumann <sven@gimp.org> * app/core/core-enums.h: use GIMP_GRADIENT as prefix for the GimpGradientType enum. * app/core/core-enums.c * app/pdb/misc_tools_cmds.c * libgimp/gimpenums.h * plug-ins/pygimp/gimpenums.py * plug-ins/script-fu/script-fu-constants.c * tools/pdbgen/enums.pl: regenerated. * app/core/gimpdrawable-blend.c * app/tools/gimpblendoptions.c * plug-ins/pygimp/plug-ins/sphere.py * plug-ins/script-fu/scripts: changed accordingly. * libgimp/gimpcompat.h * plug-ins/script-fu/siod-wrapper.c: added compatibility defines for the old enum values.
79 lines
2.7 KiB
Scheme
79 lines
2.7 KiB
Scheme
; Create a 3D sphere with optional shadow
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; The sphere's principle color will be the foreground
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; Parameters:
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; bg-color: background color
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; sphere-color: color of sphere
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; radius: radius of the sphere in pixels
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; light: angle of light source in degrees
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; shadow: whather to create a shadow as well
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(define (script-fu-sphere radius
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light
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shadow
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bg-color
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sphere-color)
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(let* ((width (* radius 3.75))
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(height (* radius 2.5))
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(img (car (gimp-image-new width height RGB)))
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(drawable (car (gimp-layer-new img width height RGB_IMAGE
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"Sphere Layer" 100 NORMAL)))
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(radians (/ (* light *pi*) 180))
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(cx (/ width 2))
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(cy (/ height 2))
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(light-x (+ cx (* radius (* 0.6 (cos radians)))))
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(light-y (- cy (* radius (* 0.6 (sin radians)))))
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(light-end-x (+ cx (* radius (cos (+ *pi* radians)))))
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(light-end-y (- cy (* radius (sin (+ *pi* radians)))))
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(offset (* radius 0.1))
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(old-fg (car (gimp-palette-get-foreground)))
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(old-bg (car (gimp-palette-get-background))))
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(gimp-image-undo-disable img)
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(gimp-image-add-layer img drawable 0)
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(gimp-palette-set-foreground sphere-color)
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(gimp-palette-set-background bg-color)
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(gimp-edit-fill drawable BG-IMAGE-FILL)
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(gimp-palette-set-background '(20 20 20))
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(if (and
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(or (and (>= light 45) (<= light 75))
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(and (<= light 135) (>= light 105)))
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(= shadow TRUE))
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(let ((shadow-w (* (* radius 2.5) (cos (+ *pi* radians))))
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(shadow-h (* radius 0.5))
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(shadow-x cx)
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(shadow-y (+ cy (* radius 0.65))))
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(if (< shadow-w 0)
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(prog1 (set! shadow-x (+ cx shadow-w))
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(set! shadow-w (- shadow-w))))
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(gimp-ellipse-select img shadow-x shadow-y shadow-w shadow-h
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REPLACE TRUE TRUE 7.5)
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(gimp-bucket-fill drawable BG-BUCKET-FILL MULTIPLY 100 0 FALSE 0 0)))
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(gimp-ellipse-select img (- cx radius) (- cy radius)
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(* 2 radius) (* 2 radius) REPLACE TRUE FALSE 0)
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(gimp-blend drawable FG-BG-RGB NORMAL
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GRADIENT-RADIAL 100 offset REPEAT-NONE FALSE
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FALSE 0 0 TRUE
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light-x light-y light-end-x light-end-y)
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(gimp-selection-none img)
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(gimp-palette-set-background old-bg)
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(gimp-palette-set-foreground old-fg)
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(gimp-image-undo-enable img)
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(gimp-display-new img)))
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(script-fu-register "script-fu-sphere"
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_"<Toolbox>/Xtns/Script-Fu/Misc/_Sphere..."
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"Simple sphere with a drop shadow"
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"Spencer Kimball"
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"Spencer Kimball"
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"1996"
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""
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SF-ADJUSTMENT _"Radius (pixels)" '(100 5 500 1 10 0 1)
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SF-ADJUSTMENT _"Lighting (degrees)" '(45 0 360 1 10 0 0)
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SF-TOGGLE _"Shadow" TRUE
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SF-COLOR _"Background Color" '(255 255 255)
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SF-COLOR _"Sphere Color" '(255 0 0))
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