Peter Collingridge

This my personal site where I host some tools I've made, tutorials I've written and various other things I've experimented with.

Contact me here.

Tutorials

Explaining how to make fun things because, if nothing else, it helps me understand them.

3D Graphics with Processing.js

Build a 3D graphics engine from scratch using Javascript.

Pygame physics simulation

Building a simple but versatile physics simulation with Python and Pygame.

SVG basics

What are the elements of an SVG and how do they work?

Interactive SVGs

A set of tutorials on how to make SVGs interactive.

This is a collection of blog posts about various things I've made or thought about. In some cases, I've collected several related posts together or split up a large post into a collection of smaller ones.

Image of Charles Darwin evolved from 256 overlapping circles

Evolving images

Evolving images using Python, Pygame and a genetic algorithm.

Heterocyst simulation

Simulation of a filament of bacteria, growing and differentiating.

Language

Analysing English and Chinese in various simple ways.

Cell simulation

Simulating some cells, letting them evolve and figuring out what happened.

Tools

I've made various javascript tools, some because I needed them, others just for fun, or just to learn how things work. I've put some of them online in case they are useful to other people, but I can't guarantee that any of them actually work. My SVG optimiser is currently hosted here.

Calculating the intersection of two line segments

InteractiveSVG.js

A lightweight Javascript library for generating interactive SVGs inline.

Draw DNA

Generate SVG diagrams of DNA for illustrating concepts in molecular biology.

drawSVG.js

Javascript library for building Scalable Vector Graphics.

Pinyinizer

Type pinyin with tone numbers and get pinyin with tone marks.

More Tools here »

Work

I currently work as a software developer for Oxford Nanopore Technologies, building services to visualise manufacturing data. Before that, I worked freelance, mainly for Khan Academy and Pixar.