duncanbeevers

# Usage
# projection = MapProjection::WinkelTripel.new(w, h)
# projections.project( latitude, longitude)
#   => [ x, y ] # cartesian coordinates
# Where x and y will be between 0, 0 (upper-left) and w, h (lower-right)
#   suitable for compositing images on a bitmap

module Math
  DEG2RAD = PI / 180
  

BigZaphod

// say that the object which is our _delegate is the only object retaining us
// and it calls this -processStuff method…

- (void)processStuff
{
    // and then this happens:

    [_delegate finishedSomething:self];

    // now, in _delegate's -finishedSomething: it ends up releasing us like so:

davbeck

_actionDelayTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:[NSBlockOperation blockOperationWithBlock:^{
    NSLog(@"Well this is useless.");
}] selector:@selector(start) userInfo:nil repeats:YES];

MartinMoizard

- (void)presentViewControllerFromVisibleViewController:(UIViewController *)viewControllerToPresent
{
    if ([self isKindOfClass:[UINavigationController class]]) {
        UINavigationController *navController = (UINavigationController *)self;
        [navController.topViewController presentViewControllerFromVisibleViewController:viewControllerToPresent];
    } else if (self.presentedViewController) {
        [self.presentedViewController presentViewControllerFromVisibleViewController:viewControllerToPresent];
    } else {
        [self presentModalViewController:viewControllerToPresent animated:YES];
    }

odrobnik

// UIImageJPEGRepresentation

NSData *data = UIImageJPEGRepresentation(tileImage, 0.71);
[data writeToURL:cacheURL atomically:YES];


// ImageIO

#import <ImageIO/ImageIO.h>
#import <MobileCoreServices/UTCoreTypes.h>

humanzz

# This is a port of the javascript code found in the following link
#http://groups.google.com/group/Google-Maps-API/browse_thread/thread/a45947d72c27cc73

class Mercator
  #offset is defined at zoom level 21 which means that this Mercator is valid for 21 zoom levels
  OFFSET = 268435456
  RADIUS = OFFSET / Math::PI
  
  def self.lng_to_x(lng, zoom)
    (OFFSET + RADIUS * lng * Math::PI / 180).to_i >> (21 - zoom)

njvitto

#Deploy and rollback on Heroku in staging and production
task :deploy_staging => ['deploy:set_staging_app', 'deploy:push', 'deploy:restart', 'deploy:tag']
task :deploy_production => ['deploy:set_production_app', 'deploy:push', 'deploy:restart', 'deploy:tag']

namespace :deploy do
  PRODUCTION_APP = 'YOUR_PRODUCTION_APP_NAME_ON_HEROKU'
  STAGING_APP = 'YOUR_STAGING_APP_NAME_ON_HEROKU'

  task :staging_migrations => [:set_staging_app, :push, :off, :migrate, :restart, :on, :tag]
  task :staging_rollback => [:set_staging_app, :off, :push_previous, :restart, :on]

calavera

require 'securerandom'

class NameGenerator
  LEFT = [
    "admiring",
    "adoring",
    "affectionate",
    "agitated",
    "amazing",
    "angry",

dhh

class ActionDispatch::Routing::Mapper
  def draw(routes_name)
    instance_eval(File.read(Rails.root.join("config/routes/#{routes_name}.rb")))
  end
end

BCX::Application.routes.draw do
  draw :api
  draw :account
  draw :session

peterdalle

# Disallow everything.
User-agent: *
Disallow: /

# Certain social media sites are whitelisted to allow crawlers to access page markup when links to /images are shared. 
User-agent: Twitterbot
Allow: /images

User-agent: facebookexternalhit
Allow: /images