timtrueman

def wrap(angle):
    if angle > pi:
        angle -= (2*pi)
    if angle < -pi:
        angle += (2*pi)
    if angle < 0:
        angle += 2*pi
    return angle

def magnetometer_readings_to_tilt_compensated_heading(bx, by, bz, phi, theta):

joemccann

The idea is to have nginx installed and node installed. I will extend this gist to include how to install those as well, but at the moment, the following assumes you have nginx 0.7.62 and node 0.2.3 installed on a Linux distro (I used Ubuntu).

In a nutshell,

1. nginx is used to serve static files (css, js, images, etc.)
2. node serves all the "dynamic" stuff.

So for example, www.foo.com request comes and your css, js, and images get served thru nginx while everything else (the request for say index.html or "/") gets served through node.

3. nginx listens on port 80.

cowboy

# No yielding

class NormPerson
  attr_accessor :first, :last
  def initialize(first = nil, last = nil)
    @first = first
    @last = last
  end
  def hello
    puts "#{@first} #{@last} says hello!"

runemadsen

Polymorphic Associations reversed

It's pretty easy to do polymorphic associations in Rails: A Picture can belong to either a BlogPost or an Article. But what if you need the relationship the other way around? A Picture, a Text and a Video can belong to an Article, and that article can find all media by calling @article.media

This example shows how to create an ArticleElement join model that handles the polymorphic relationship. To add fields that are common to all polymorphic models, add fields to the join model.

tlrobinson

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2011 Tom Robinson <http://tlrobinson.net/>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE

bclinkinbeard

#!/bin/bash

# current Git branch
branch=$(git symbolic-ref HEAD | sed -e 's,.*/\(.*\),\1,')

# v1.0.0, v1.5.2, etc.
versionLabel=v$1

# establish branch and tag name variables
devBranch=develop

ederwander

# Copyright (c) 2011, Eng Eder de Souza
#    ___    _              _       ___
#   | __|__| |___ _ _   __| |___  / __| ___ _  _ _____ _
#   | _|/ _` / -_) '_| / _` / -_) \__ \/ _ \ || |_ / _` |
#   |___\__,_\___|_|   \__,_\___| |___/\___/\_,_/__\__,_|
#Accessing the Google API for speech recognition!
#Open a file type Wav to speech recognition
#This source does not require any external programs to perform audio conversions :-)
#http://ederwander.wordpress.com/2011/11/06/accessing-the-google-speech-api-python/
#Eng Eder de Souza

gregburek

import time

def RateLimited(maxPerSecond):
    minInterval = 1.0 / float(maxPerSecond)
    def decorate(func):
        lastTimeCalled = [0.0]
        def rateLimitedFunction(*args,**kargs):
            elapsed = time.clock() - lastTimeCalled[0]
            leftToWait = minInterval - elapsed
            if leftToWait>0:

elidupuis

/*! ******************************
  Handlebars helpers
  *******************************/

// debug helper
// usage: {{debug}} or {{debug someValue}}
// from: @commondream (http://thinkvitamin.com/code/handlebars-js-part-3-tips-and-tricks/)
Handlebars.registerHelper("debug", function(optionalValue) {
  console.log("Current Context");
  console.log("====================");

hotchpotch

def pbcopy(str)
  IO.popen('pbcopy', 'r+') {|io| io.puts str }
  output.puts "-- Copy to clipboard --\n#{str}"
end

Pry.config.commands.command "hiscopy", "History copy to clipboard" do |n|
  pbcopy _pry_.input_array[n ? n.to_i : -1]
end

Pry.config.commands.command "copy", "Copy to clipboard" do |str|