David Hamp-Gonsalves

I’ve been working on a crime heatmap animation lately and these are some tips for anyone else building something similar.

This is a pretty lightweight way of detecting when your javascript is living in a mobile device. if(typeof window.orientation !

Google Code Jam annual competition ACM ICPC annual competition ICF PC annual competition USA Computing Olympiad annual competition community training Facebook Puzzles competition SPOJ competition Hack-Fit competition hackathon Kaggle predictive modeling c…

There are so many Haligonians that want a GPS based Go Time bus tracker.

You can “draw” all sorts of stuff on Google Maps using Layers but mor simply you can also directly create polygons and with a bit of extra work make them looks pretty cool.

After reading about using online ads to launch a javascript based DDoS attack I started wondering about how well such a system would do at mining bitcoins.

If you don’t own a mac it can be tricky to write/build a mobile application for IOS unless you own a Macbook.

Everyone loves faster Javascript, which is why Mozilla’s ASM.js is such big news.

With Google Reader closing its doors the “Is RSS Dead?”

Over the holidays I wanted to play some old game cube games to be festive(Christmas means new games).

When writing a mobile app there are a ton of choices you need to make before you really get started.

The Damerau Levenshtein algorithim calculates a distance between two words in the same way that basic Levenshtein does but adds transpositions to the set of operations that it uses to calculate distance.

Lately I’ve been working a mobile app called Ethical Barcode that scans product barcodes and determines if the related brand is worth supporting/avoiding.

Last week I got married(it was amazing and surreal).

Converting a barcode into useful, descriptive information is harder then you would expect.

This is just a short and sweet set of commands to install Nodejs and NPM on Fedora 17.

This post should really just read: JQuery 1.4 breaks(Refused to execute inline script) when used in Chrome Extensions using the version 2 Manifest.

Last week I took part inHalifax’s Awesome Idea Market and had a fantastic time.

A couple weeks ago I entered my first AI related contest, hosted by scribd.

Most of the key binding can be configured from the system settings > Keyboard area with the exception of the configuring the dash or overview overlay, which by default is bound to the left super key.

Pygmenter is a web based frontend for the Pygments syntax highlighter.

Sticky headers are heading elements that stick to the top of the window as the user scrolls down the page.

For simple javascript animations there is always a trade off between code size and visual effects.

Recently I needed a minimum viable animated web loading indicator.

For Hourly Weather I needed a full set of weather icons that represented a wide palate of weather conditions as well as had night/day versions of each.

A telnet client is a handy testing tool for testing connectivity between servers.

I needed to do some SVN scraping recently to automate the detection of certain areas of code and this is what I learned.

This is the first post in a series about injecting JSON based metadata into a live RTP streams using Wowza Media Server, Adobe Flex and OSMF.

This is the second post in a series about injecting JSON based metadata into a live RTP streams using Wowza Media Server, Adobe Flex and OSMF.

This is the third post in a series about injecting JSON based metadata into a live RTP streams using Wowza Media Server, Adobe Flex and OSMF.

Preamble I needed some color based object tracking for a project I was hacking together last weekend.

There are some getting started tutorials for the iText library but I don’t think they really capture how fast and easy it is to get working PDF’s.

Hourly Weather is two small projects that share the same major code base.

While working on Foxish I needed to parse some RSS/Atom feeds in javascript.

The last few weeks I’ve seen more fake burning fires then every other holiday season I can remember so when I noticed no one had written one in canvas I figured I’ll fill the gap. the Fire Not being a game developer I needed to read a bit about how to cre…

Note Feeder is a small web application that lets you save urls and notes from your current page.

Foxish is a Chrome/Chromium extension that mimics the excellent native handling of RSS and Atom feed reading in Firefox using live bookmarks.

What is Foxish RSS?