Convert ESRI Shapefile (.shp) to geoJSON (.json)

Conversion result implemented in Google Maps, using data of my hometown Deinze, Belgium To convert ESRI shapefiles to geoJSON (which you can perfectly use JavaScript and thus pass on to Google Maps, see screenshot above) you will need GDAL (Geospatial Data Abstraction Library) — Mac Users: download here. I have installed GDAL 1.9 Complete but […]

Convert LAMBERT 1972 to WGS84

Needed to convert LAMBERT 1972 (EPSG:31370) coordinates to WGS84 (EPSG:4326) for a project I’m working on in order to use the coordinates with Google Maps (which uses a SphericalMercator (EPSG:900913) projection). Took me quite a while to find the needed algorithm, so hereby I’m listing them (and am providing the JavaScript implementation): JavaScript: var lambert72toWGS84 […]

Radio Silence

You might have noticed the absence of posts here on the past week. Culprit were the new lesson materials I have developed for the course Rich Internet Applications (next year to be renamed to Web & Mobile Development) The developed materials consist of a set of interactive in-browser slide decks, powered by (a customized) […]

MAMP Pro slow name resolving with .local vhosts in Lion (fix)

An issue I’ve encountered with MAMP Pro since having upgraded to OS X Lion was that requests to vhosts served via MAMP took their time to load: after about 3 to 5 seconds of loading, the site would finally load. The most tricky part in this issue is that it only happens if you have […]

On Gowalla, Facebook, Instagram, Path, and Storytelling

I was meaning to write a blogpost on Gowalla 4. About how I used it less than before. But also about that when I use it (which I still do from time to time), I use it in a more engaged way. In the blogpost on Path 2, I was going to state that “Path […]