I realise this is potentially not a programming question, however its a problem I keep bumping into as a programmer, so I figure others here might have useful knowledge to share.
I\'m building a web application that is going to dynamically highlight certain U.S. states and Canadian provinces on a Google Map, based on buttons and click events.
I have a map that is cut up into a number of regions by borders (contours) like countries on a world map. Each region has a certain surface-cover class S (e.g. 0 for water, 0.03 for grass...). The bor