class CooCoo::Image::Rotate
Public Class Methods
new(ox, oy, radians)
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Calls superclass method
# File lib/coo-coo/image.rb, line 201 def initialize(ox, oy, radians) super() @ox = ox @oy = oy @radians = radians end
Public Instance Methods
call(x, y)
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# File lib/coo-coo/image.rb, line 208 def call(x, y) c = ::Math.cos(@radians) s = ::Math.sin(@radians) x = x - @ox y = y - @oy nx = x * c - y * s ny = x * s + y * c nx = nx + @ox ny = ny + @oy [ nx.floor, ny.floor ] end