# File lib/compass/sass_extensions/sprites/sprite_methods.rb, line 39 def compute_image_positions! @images.each_with_index do |image, index| image.left = image.position.unit_str == "%" ? (@width - image.width) * (image.position.value / 100) : image.position.value next if index == 0 last_image = @images[index-1] image.top = last_image.top + last_image.height + [image.spacing, last_image.spacing].max end end