Hey Mike, Looks really interesting. I took a glance at your code -- haven't had a chance to play with it yet, but you've got a solid framework here. I'm looking forward to testing it out.
I'm trying to wrap my head around it, and maybe I just need to spend some more time with the docs and the code itself. Thinking about cutting down on repetitiveness, how does mapnik-css improve over, say, XML entity definitions? Cheers, -Paul On Mon, Aug 25, 2008 at 11:44 AM, Michal Migurski <[EMAIL PROTECTED]> wrote: > Hi, > > Having worked on one Mapnik project that required big, almost-OSM- > scale stylesheets, I've been a bit frustrated with the state of the > art for defining map appearance. So, I've built a stylesheet > preprocessor that parses a format explicitly based on HTML + CSS and > outputs the usual XML styles. > > There's a basic introduction here: > http://teczno.com/cascadenik/doc/ > > ...and complete code here (note some of the reqs in the Makefile): > > http://code.google.com/p/mapnik-utils/source/browse/trunk/serverside/styles/ > > I'm looking for comments / feedback. > > It's a fairly complete thought, incorporating a lot of the things I > believe would make styling maps accessible to designers: > > - It's possible to refer to external files in predictable locations > including images and linked stylesheets. > - Style definitions can work in a class-oriented fashion, allowing you > to express ideas such as "all roads are red, but primary roads have a > yellow edge and they're different widths at each zoom level" - > currently this is difficult or at least enormously repetitive with > existing Mapnik styles. > - Rules for how these definitions combine and cascade are also > explicit, copied directly from the CSS spec. > - I've also started to introduce useful shorthands, e.g. it's possible > to express scale denominator boundaries in a reduced "zoom" notation > specifically for maps in the Google / VEarth / OSM projection. > > Most properties are done: > > http://code.google.com/p/mapnik-utils/source/browse/trunk/serverside/styles/style.py#48 > > Outstanding items still on my list to do include the shield > symbolizer, dashed lines, and Filters. > > Also a full set of edge & corner cases hasn't yet been dealt with, but > there are tests: > > http://code.google.com/p/mapnik-utils/source/browse/trunk/serverside/styles/test.py > > Anyway, thoughts welcome. > > -mike. > > ---------------------------------------------------------------- > michal migurski- [EMAIL PROTECTED] > 415.558.1610 > > > > _______________________________________________ > Mapnik-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/mapnik-users > -- Paul Smith http://www.pauladamsmith.com/
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