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function isInside(p, [a, b]) {
    return (b[0] - a[0]) * (p[1] - a[1]) > (b[1] - a[1]) * (p[0] - a[0]);
}

function getEdges(polygon) {
    let edges = [];

    for (let i = 0; i < polygon.length; i++) {
        let edge = [polygon[(i + polygon.length - 1) % polygon.length], polygon[i]];

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Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

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" Options
set shiftwidth=2
set softtabstop=2
set tabstop=2
set expandtab
set number
set ignorecase
set hlsearch
set noeb vb t_vb=
set wildmenu

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Scaling Web Scraper

Session at SoCraTes Linz, 29. October 2016 https://twitter.com/SoCraTesAT

Keep in Mind

• Just because I'm able to... doesn't mean I'm allowed to.
• We should care about the law.
• DANGER: Copyright
• Keep in Mind - German Version: https://de.wikipedia.org/wiki/Datenbankwerk

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CSS Naming Convention (BEM)

COMPONENTS

A page module that has a certain purpose and is a wrapper for it’s children, in example a modal or a slider can be a component. Components use a name:

• .component {}
• .component-name {}

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// if you would like to use the custom easing you need to use following dependency
// http://gsgd.co.uk/sandbox/jquery/easing/

$('.scroll').on('click', 'a', function(event){
    event.preventDefault();
    var target = $(this).attr('href');
    $('html, body').animate({
        scrollTop: $(target).offset().top - $('header').height()
    }, 700, 'easeInOutCubic' );
});

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Server: Ubuntu 10.04 / 64 bit, User: root

update packages

apt-get upgrade
apt-get update

=================================================================

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download and unzip manymes-chrome-extension.zip

open chrome://extensions/

activate developer mode (checkbox)

press load unpacked extensions...

choose the unpacked manymes-crhome-extension folder

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# Flatten a transparent image with a white background:
convert -flatten img1.png img1-white.png

# Make an image transparent
convert -transparent '#FFFFFF' nontransparent.gif transparent.png

# convert an image into tiles
convert -size 3200x3200 tile:single_tile.png final.png

# making a montage from a collection of images

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curl multiple files

curl -O -v --cookie "insert_cookie" https://images-url.com/?id=[0-10]

lorempixel with custom name

for i in {1..10}; do wget -O $i.jpg http://lorempixel.com/512/512; done;

download from lorempixel

for i in {1..100}; do wget http://lorempixel.com/512/512; done

rename multiple files