support Mapnik 3.x minimum-/maximum-scale-denominator for layers

mapbox / carto

fast CSS-like map stylesheets

https://cartocss.readthedocs.io/

Apache License 2.0

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support Mapnik 3.x minimum-/maximum-scale-denominator for layers #420

Closed nebulon42 closed 8 years ago

nebulon42 commented 8 years ago

Fixes #394.

How should the properties be named? I currently used min-zoomlevel and max-zoomlevel, because the old minzoom and maxzoom have to be kept for backwards compatibility and min-zoom, max-zoom are too close to the other names (only 1 character is different).

nebulon42 commented 8 years ago

I withdraw this as it is the wrong approach. carto needs a way to target different Mapnik API versions.