[mapserver-dev] RFC49: mapfile simplifications and symbology enhancements

[thomas bonfort]

Hi,

Not sure if the changes warrant a full blown RFC, but as there quite a
number of them I've regrouped them.

http://trac.osgeo.org/mapserver/browser/trunk/docs/development/rfc/ms-rfc-49.txt

These changes are/were all in RFC45, but were extracted to keep things
moving on as some of the stuff in rfc45 lacks funding in the near
future.

You can see it in action here on openstreetmap data:
http://mapserverosm.s3.amazonaws.com/parisosm.html
nothing that's impossible to do with the current mapfile keywords
(except for polygon label placement, and thin lines thanks to
fractional size/widths), but the mapfile maintainance and creation is
greatly simplified, as e.g. roads are mostly defined with a single
class whatever the scale (using a combination of sizeunits at the
layer level, and min/max width and min/max scale at the style level)

regards,
thomas