jcromartie

#!/usr/bin/env ruby
# -*- coding: utf-8 -*-

# prints a sparkline in the terminal using the supplied list of numbers
# examples:
#   spark.rb 10 20 30 100 90 80
#   spark.rb 1 2 0.4 0.1 1.3 0.7

@ticks = %w[▁ ▂ ▃ ▄ ▅ ▆ ▇]
values = ARGV.map { |x| x.to_f }

zumbojo

# Simple bijective function
#   Basically encodes any integer into a base(n) string,
#     where n is ALPHABET.length.
#   Based on pseudocode from http://stackoverflow.com/questions/742013/how-to-code-a-url-shortener/742047#742047

ALPHABET =
  "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789".split(//)
  # make your own alphabet using:
  # (('a'..'z').to_a + ('A'..'Z').to_a + (0..9).to_a).shuffle.join

leegao

// Compress and add javascript: prefix, then save as a bookmarklet

function process(image){
	h = image.height; w = image.width;
	var buffer = document.createElement("canvas"); // Anonymous canvas
	buffer.width = w;buffer.height=h;
	var ct = buffer.getContext('2d');
	ct.drawImage(image,0,0);
	var data = ct.getImageData(0,0,w,h).data; // This may raise an exception for external images.
	var pxs=2; // Height-Width of the pixel block