Isochrones are curves of equal travel time from a certain point of origin, another way of saying this would be that an Isochrone is an isoline for travel time, if the weighting factor is changed form time to distance, then the resulting curve us called an Isodistance.
This post provides a quick recipe to merge multiple shape files to one using Ogr2Ogr utility and then also talks about doing so using Qgis.
A guide to HTML5 Geolocation API
Using Elastic search for spatial searching tutorial.
Find webapp on Github here.
A short code fragment demonstrating use of css3 to create an ajax loading animation without using any gifs.
How to install and configure grunt on mac Osx
Range Normalization is a normalization technique that allows you to map a number to a specific range.
Lets say that we have a data set where the values are in a range of 1 to 10, however we wish to normalise it to a range between 0 and 5
This posts is to assist those unfortunate souls who are trying to install tilestache library but are being smacked by the compiler with this stupid warning.
error: command ‘cc’ failed with exit status 1... blah blah
This fix should work for other libs as well which intend to build stuff on client before installing.