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dimerman/gist:2052720

Created March 16, 2012 21:10
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Resizing an image to a given rectangle maintaining aspect ratio
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gistfile1.rb
def fit_dimensions( original, target )
original_ratio = original[:height].to_f / original[:width].to_f
target_ratio = target[:height].to_f / target[:width].to_f
result = target.clone
case original_ratio <=> target_ratio
when -1 then result[:height] = target[:width].to_f * original_ratio
when 1 then result[:width] = target[:height].to_f / original_ratio
end
return result
end
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