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AS3 latitude and longitude positioning in a Mercator and Equirectangular projection

For a project for thefactor.e I was playing around with placing latitude / longitude coordinates to x y positions and as easy as this sounds it is quite a search through different type of projections and formulas. This post will sum up two of those projections which are mostly used, a mercator and a equirectangular projection, with the as3 codes behind them. To illustrate it all I made a little demo.

About this Site

Introduction
<labs. is my digital playground where I research possibilities and solutions in video, Adobe Flash and Flex, and more stuff that comes on my way. I currently work for yellowBird building 360 degree video experiences
Overview
Name: Gerben Robijn
Country: the Netherlands
Education: Bachelor degree in software engineering.
Current Employer: yellowBird
Speciality: Flash and Flex, actionscript 2 and 3
Experience in: XHTML, […]

Subversion finally working! Some tips.

A couple of weeks ago I got the chance to buy an old model (Core 2 duo though) of a 1.83 ghz mac mini with 2gig memory against a very reasonable price. I was looking for a mac mini for a while now to use as server, subversion, continuous builds and mediacenter.

I installed a clean install of leopard and had a php server with mysql setup in no time with the standard apache installation but getting subversion up and running was a bigger problem… at least for me it was since I usually don’t do this stuff. Perhaps this post may be of some help.
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Relational Particle Concept

A couple months ago I got the assignment of thinking up conceptual way to represent lots of data that also would have certain relations with each other or being assigned to a group or something. What I came up with was a relational particle system.

What does it do in essence?
Well it represents every data item as a little particle and the particle will inherit some of the data properties. On the base of these properties relations with other particles are made when a single particle is selected. The particle that has a relation with the selected particle will be atracted to the selected particle and in this way form a group of related particles. The other particles that do not have a relation will try to keep away from the group.
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Google analytics in Flash / Flex

Last week I had to implement some google analytics in a flash application that I created for “artsen zonder grenzen“. I love the way that this can be done now directly from within the flash or flex application but I also noticed how crappy this api was written.

For instance (taken directly from the api):
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What have I been up to lately: Tactive showcase

Last year at TFE we (Jaap and I) have been working on a project called Tactive. It’s an online platform for treatment of addictions. This platform is a replacement for the already existing treatment for an alcohol addiction. It seems to be easier for people to sign up for a treatment online rather than meeting an expert face to face.

The platform is build generic and can be extended for other addictions but the first release is for an alcohol addiction. The platform consists of seven Flex applications, from these applications the client uses three. The other applications are used by counselors and administrators.
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