On 21/10/2015 20:27, Paul Norman wrote:
...
https://github.com/SomeoneElseOSM/designation-style
An evolution of that is
https://github.com/SomeoneElseOSM/SomeoneElse-style , which emits key
combinations as pseudo-values, to be used by
https://github.com/SomeoneElseOSM/openstreetmap-carto-AJT . For example:
https://github.com/SomeoneElseOSM/SomeoneElse-style/blob/master/style.lua#L97
if (( keyvalues["highway"] == "footway" ) or
( keyvalues["highway"] == "steps" ) or
( keyvalues["highway"] == "bridleway" ) or
( keyvalues["highway"] == "cycleway" )) then
if (( keyvalues["width"] == "2" ) or
( keyvalues["width"] == "2.5" ) or
( keyvalues["width"] == "3" ) or
( keyvalues["width"] == "4" )) then
keyvalues["highway"] = "pathwide"
else
keyvalues["highway"] = "path"
end
end
sets "highway=pathwide" in some cases. That means that the styling in:
https://github.com/SomeoneElseOSM/openstreetmap-carto-AJT/blob/master/roads.mss#L1426
can be much simpler - no need for horrible SQL statements combining
keys, just handling of extra values where needed in:
https://github.com/SomeoneElseOSM/openstreetmap-carto-AJT/blob/master/project.mml#L403
It's also easy to assign other tags:
https://github.com/SomeoneElseOSM/SomeoneElse-style/blob/master/style.lua#L255
which means that e.g. "man_made=petroleum_well" gets rendered as it's
own industrial area (with name), even if it's part of a larger
industrial area.
Cheers,
Andy
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