MCMap Live Slice Sorter

mcsorter.rb

#!/usr/bin/env ruby

# Sorts slice sequence images output by MCMap Live. Creates folders of every
# five and ten images for inspection.

require 'fileutils'

class McSorter
  
  def initialize
    @files = Dir.glob('*.png')
    @pattern = get_pattern(@files.first)
  end

  def start
    # Prepend label names with an underscore so they show up first in the
    # directory listing, regardless of how the slices were named. 
    # Sort tens
    sort_files('_tens', 10)
    # Sort fives
    sort_files('_fives', 5)
    
    return 0 # Return 0 for great success!
  end
  
  private
  
  # Creates a pattern that works with sprintf allowing substitution of an
  # integer index
  def get_pattern(name)
    patterns = name.scan(/(.*?)(\d+)(.*)/).first
    "#{patterns.first}%s#{patterns.last}"
  end
  
  # Returns an array of integers at a stepped interval
  def steps(step)
    ret = (step..128).step(step).to_a
    ret.unshift(1)
    ret.push(128)
  end
  
  # Take a list of file names and drop them in to a folder
  def sort_files(label, step)
    files = steps(step).collect {|i| @pattern % i}
    FileUtils.rm_rf(label) if Dir.exists?(label)
    FileUtils.mkdir(label)
    FileUtils.cp(files, label)
  end
  
end

McSorter.new.start