posts tagged 'code'

Interactive mapping with HTML5, JavaScript, and Canvas

Part 1: Loading, projecting, and drawing geodata
I’m getting into more canvas and JavaScript for interactive mapping. Much of the Flash/ActionScript work I’ve written or come to rely upon is directly portable to JS/canvas. What’s missing is a sweet RIA framework and IDE for the kind of development Flash and Flex have made possible [...]

E00Parser, an ActionScript 3 parser for the Arc/Info Export topological GIS format

First off, why mess with such a retro format as Arc/Info Export (.e00)?– any code written for this ASCII file type in the last few years has been on how to go from e00 to pretty much anything (especially to the non-topological data format, the shapefile).
Put simply, topological information makes a lot [...]

noncontiguous area cartograms

notes on noncontiguous cartograms and ActionScript 3 classes for producing them
Fully contiguous cartograms have stretched and distorted borders but perfectly maintained topologies. Like the Gastner-Newman diffusion-based cartograms we see all over the place. Though all sorts of cartogram designs have been produced, those with perfect topology preservation (fully contiguous cartograms) receive the majority of [...]