[OSM-dev] Converting OSM Mapnik stylesheet to Cascadenik or Carto

[Richard Fairhurst]

Igor Brejc wrote:
> Richard, if you remember two years ago I _was_ considering using MapCSS 
> for the (then) Kosmos successor and we had a brief discussion about 
> certain things (see http://wiki.openstreetmap.org/wiki/Talk:MapCSS). 
> Kosmos wiki table rules were becoming cumbersome and I was looking 
> for an alternative.

Absolutely, I do remember.

Maperitive is terrific and I think it, probably more than any other renderer
so far, shares a common aim with MapCSS: "custom rendering for the rest of
us". That's why I'd love to see it support MapCSS.

You are of course right that declarative CSS-type rules will be slower to
parse (though web browsers seem to manage it fairly quickly ;) ). But
computers get faster, and for some people simplicity and universality are an
adequate trade-off for speed. Given that my doubtless-inefficient rules
engine works tolerably quickly on Adobe's dog-slow Flash Player for Mac, I
suspect one done by a proper programmer in a proper environment could be
"fast enough" for many people. Perhaps one day Maperitive might parse MapCSS
styles optionally, just as JOSM allows you to choose between MapCSS and its
own MapPaint styles?

*flutters eyelashes*

cheers
Richard



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