A BSD licensed javascript implementation of some of the mapnik Layer, Rule, Style and symbolizer classes (implemented mainly by eye-balling the XML and reading the wiki). Also javascript classes to take XML from the OpenStreetMap API and turn it into GeoJSON-ish things. Also javascript classes to make using Array.filter more sane, and slightly SQL-ish. Nowhere near feature complete. There is an initial attempt to implement text rendering, which is where things should get interesting. OpenLayers has a similar set of classes for styling vector data, and Cartagen also explores similar ideas. TODO: - proper projections (right now things just get squeezed into squares) - more symbolizers (text, point, etc) - try an SVG renderer instead of canvas (DOM is handy!) - load and parse mapnik-ish xml files (URLs for sources?) - load and parse cascadenik files (CSS++) - use something like YQL to transform the XML to GeoJSON on a server?