Digital Bunker (Page 7)

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How I Created LowPolygonArt.com

During the summer of 2017, I had a few weeks to kil before I began my new job at Porsche. So, as usual, I made some popcorn, sat down on the couch, and turned on my Roku Smart TV. During the television’s boot sequence, the polygon background image caught

How Far Do Your Fingers Travel When Typing?

I was browsing Twitter the other day and I came across this tweet: > On an average workday, a typist’s fingers travel 12.6 miles. #DoTheMath [https://twitter.com/hashtag/DoTheMath?src=hash&ref_src=twsrc%5Etfw] — Intel (@intel) January 10, 2014 [https://twitter.com/intel/status/421698954448089088?

New eBook: Practical Tips for Junior iOS Developers

I’ve been working hard over the last few months on a book for ambitious junior iOS engineers. Pleased to announce that it’s officially live [https://gumroad.com/l/fjTSv]! Ever since I created my first Xcode project, I’ve been maintaining a notebook where I documented everything I

Accessibility Standards & Tooling for iOS Teams

In most of my iOS roles, accessibility support has been a secondary concern. Fortunately, an employment opportunity in early 2020 afforded me a chance to work on a team that felt differently. Together, we worked to define accessibility best practices, standards, and workflows for our entire organization. This article describes

Implementing Unix’s compress

Let’s take a look at the compression algorithm behind Unix’scompressand most .gif compression. The Lempel Ziv Welch [LZW] algorithm is a greedy lossless compression algorithm that works by replacing recurring patterns with shorter codes in order to save space. > Lossless is a form of compression where no

Creating An Open-Source Translation Memory

I’ve always wanted to localize my personal apps, but I found it to be too expensive. Since many apps share the same vocabulary (News Feed, Dashboard, Forgot Password, Take Photo), it seemed silly to pay to translate words that some other development team must have previously paid to translate.

Understanding Contrast Algorithms

As a hobbyist photographer, I’ve always wondered how Apple Photos, Lightroom, and Photoshop implement image contrast adjustments. After spending some time reading into it, the approach is worth sharing. Let’s start with the basics. > A histogram is simply a bar chart representing [in this case] different frequencies

Understanding How UUIDs Are Generated

Introduction You’ve likely used UUIDs in projects before and assumed them to be unique. Today, we’ll take a look at the main aspects of the implementation and understand why UUIDs are practically unique, though an incredibly small potential for duplication exists. The modern-day implementation of UUIDs can be

Understanding Gaussian Blurs

Let’s take a detailed look at the implementation behind Gaussian blurs. It’s the image processing algorithm that enables image manipulations like this: We’ll start by reviewing Gaussian distributions and image convolution – the driving forces behind Gaussian blurs. Then, we’ll implement our own Gaussian blur algorithm from

How Do Computers Generate Random Numbers?

Anyone with any programming experience understands that computers are deterministic machines. If you provide the same input, you’ll always get the same output. That’s why having computers generate something by chance is trickier than it may seem. Computers use random numbers for everything from cryptography to gambling, generative