From: Peter Bailey <pbailey@...>
Date: 2010-05-05T21:45:00+09:00
Subject: Why can't I do a "to_i?"

Hello,
I keep getting an "undefined method `to_f'" for this simple script. Can
someone help me? I'm interrogating jpeg graphics files and I need to log
their widths and depths, in picas.
Thanks a lot,
Peter

Dir.chdir("T:/ioma/temp")
Dir.glob("*.jpg").each do |file|
 fileinfo    = `alchemy #{file} -x`
 filewidth        = fileinfo.match(/Width x Height: ([0-9]{1,5}) x
([0-9]{1,5})[1]/)
 filedepth        = fileinfo.match(/Width x Height: ([0-9]{1,5}) x
([0-9]{1,5})[2]/)
 fileres        = fileinfo.match(/Dots per inch: [0-9]{1,5}/)

 newfilewidth    = (filewidth.to_f / 200) * 6
 newfiledepth    = (filedepth.to_f / 200) * 6

 File.open("t:/ioma/iomafiles.log", "a") { |f| f.print "#{file}  width:
#{newfilewidth.to_f.round} depth: #{newfiledepth.to_f.round}\n" }
end
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