EvilScott

require 'mini_magick'

class ImageResizer

  attr_accessor :height, :width, :padding, :stretch, :grayscale

  def initialize(path)
    @image = MiniMagick::Image.open(path)
  end

EvilScott

{
  "presets": ["env", "stage-2"],
  "plugins": [
    ["transform-react-jsx", { "pragma": "h" }]
  ]
}

EvilScott

class Array
  def diagonals
    [self, self.map(&:reverse)].inject([]) do |all_diags, matrix|
      ((-matrix.count + 1)..matrix.first.count).each do |offet_index|
        diagonal = []
        (matrix.count).times do |row_index|
          col_index = offet_index + row_index
          diagonal << matrix[row_index][col_index] if col_index >= 0
        end
        all_diags << diagonal.compact if diagonal.compact.count > 1

EvilScott

// http://blog.mobile.codalism.com/research/papers/wmz10_tois.pdf

// used for a list of 50 items
const P_VALUE = 0.8;

export const intersection = (a, b) => a.filter(x => b.indexOf(x) > -1);

export const overlap = (a, b) => intersection(a, b).length;

export const agreement = (a, b) => overlap(a, b) / a.length;

EvilScott

DROP FUNCTION IF EXISTS f_intersect;
CREATE OR REPLACE FUNCTION f_intersect(a ANYARRAY, b ANYARRAY)
RETURNS ANYARRAY AS $$
  BEGIN
    -- TODO ensure a and b are the same length
    RETURN ARRAY(SELECT UNNEST(a) INTERSECT SELECT UNNEST(b));
  END;
$$ LANGUAGE plpgsql;

DROP FUNCTION IF EXISTS f_overlap;

EvilScott

git branch --merged | egrep -v "(^\*|master)" | xargs git branch -d

EvilScott

# m h  dom mon dow   command
0 0 * * * pg_dump DATABASENAME > $(date "+%b_%d_%Y").bak
0 1 * * * find ~/*.bak -mtime +10 -type f -delete

EvilScott

<span class="counter">1</span>
<span class="counter">2</span>
<span class="counter">3</span>
<span class="counter">4</span>
<span class="counter">5</span>

EvilScott

Download ffmpeg from here (ffmpeg is also available via brew)

Use the following bash command:

$ ffmpeg -i <videofile> -vf fps=1/10 frame%04d.png

Notes on this command:

• Replace <videofile> with the path to the video file you wish to process
• fps=1/10 is the frames per second (grab one frame every ten seconds)

EvilScott

#!/usr/bin/env bash

# this script will download, configure, compile, and install opencv for macos with python 3.4 using a virtualenv
# instructions are from http://www.pyimagesearch.com/2015/06/29/install-opencv-3-0-and-python-3-4-on-osx/
# you need git, homebrew, and a virtualenv with python 3.4

# grab prereqs
brew install cmake pkg-config jpeg libpng libtiff openexr eigen tbb ffmpeg

# grab opencv source