Image Slicer

require 'RMagick'include Magickrowsize=135colsize=135img = ImageList.new("foo.png")raise "Row size #{rowsize} is not a multiple of image height #{img.rows}" unless img.rows%rowsize==0raise "Column size #{rowsize} is not a multiple of image width #{img.columns}" unless img.rows%colsize==0rows=img.rows/rowsizecols=img.columns/colsizeputs <<EOS<?xml version="1.0"?><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"     version="1.2"  baseProfile="tiny">EOScols.times do |colindex|  rows.times do |rowindex|    subimg=img.crop(rowindex*rowsize,colindex*colsize,colsize,rowsize)    print "<image x=\"#{rowindex*rowsize}\" y=\"#{colindex*colsize}\" width=\"#{colsize}\" height=\"#{rowsize}\" type=\"image/png\" xlink:href=\"#{colindex}-#{rowindex}.png\" />"    subimg.write("#{colindex}-#{rowindex}.png")  end  putsendputs "</svg>"