   "#{rect.width}x#{rect.height}#{left}#{top}"
 
 unless _.isString(p.input) and p.input.length > 0
-  console.log "Usage: texture_info -i path_to_image_file [-o output directory]"
+  console.log "Usage: texture_info -i path_to_image_file [-o output directory [-c force register point to middle center]]"
   process.exit()
 
 console.log "input file : #{p.input}"


  pathToSgfFile = path.relative p.output, p.input

  async.eachSeries assetRects, (assetRect, callback)->
    index = assetRects.indexOf assetRect
    originalRect = originalRects[index]

p.version(pkg.version)
  .option('-o, --output [VALUE]', 'output directory')
  .option('-i, --input [VALUE]', 'input file')
  .option('-c, --forceRegPointToCenter', 'only work with -i switcher, when this switcher is turned on, the output image will use forced register point at the middle of the canvas')
  .parse(process.argv)


