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Contents
# Triangle Flower # by Ira Greenberg. # # Using rotate() and triangle() functions generate a pretty # flower. Uncomment the line "# rotate(rot+=spin.radians);" # in the triBlur() function for a nice variation. attr_reader :pt, :shift, :spin, :fade def setup size 200, 200 background 0 @fill_color = 0.0 @shift = 1.0 @rot = 0.0 @fade = 255.0 / (width / 2.0 / shift) @spin = 360.0 / (width / 2.0 / shift) @pt = [] pt << Point.new(-width / 2.0, height / 2.0) pt << Point.new(width / 2.0, height / 2.0) pt << Point.new(0.0, -height / 2.0) no_stroke translate width/2, height/2 while pt[0].x < 0 do tri_blur end end def tri_blur fill @fill_color @fill_color += fade rotate spin # try these lines also .. # @rot += spin.radians # rotate @rot pt[0].x += shift pt[0].y -= shift / 2 pt[1].x -= shift pt[1].y -= shift / 2 pt[2].y += shift triangle pt[0].x, pt[0].y, pt[1].x, pt[1].y, pt[2].x, pt[2].y end class Point attr_accessor :x, :y def initialize (x, y) @x, @y = x, y end end
Version data entries
5 entries across 5 versions & 1 rubygems