In general, this feature causes problems for implement its. It stops MapCSS being a declarative language, and makes it procedural instead. That closes off a bunch of avenues for implementing the language in a way that works fast enough for real time applications.
There's a reason that css doesn't have this feature. Sent from my iPhone > On May 12, 2017, at 10:28, Bjoern Hassler <[email protected]> wrote: > > Ah ok, many thanks! > Bjoern > >> On 12 May 2017 at 18:26, Aun Johnsen <[email protected]> wrote: >> AFAIK { set: key=value; } have only been discussed, I hope that pgmapcss can >> implement it, though I havn’t been able to test it or discuss it any further >> with the developer. >> >> Aun Johnsen >> >>> On May 12, 2017, at 14:18, Bjoern Hassler <[email protected]> wrote: >>> >>> OK, many thanks - I guess this is a fairly new feature. Do you know where >>> this is documented, or what applications support it yet? >>> >>> Bjoern >>> >>>> On 12 May 2017 at 16:33, Aun Johnsen <[email protected]> wrote: >>>> Bjørn >>>> >>>> I don’t know if it will work, but the way I have been thinking is like >>>> this: >>>> >>>> way[highway=residential][!surface] { >>>> set: surface=unpaved; >>>> } >>>> way[highway=motorway][!surface] { >>>> set: surface=paved; >>>> } >>>> >>>> This is done so I can assume default values later in the sheet, without >>>> having to test explicitly for untagged ways for each test. If it works on >>>> the implementation of mapcss, it will come handy on complex stylesheets. >>>> >>>> Aun Johnsen >>>> >>>>> On May 12, 2017, at 12:08, Bjoern Hassler <[email protected]> wrote: >>>>> >>>>> Aun, can you say a little more about "set tag=value"? I assume these are >>>>> css tags? What's the purpose? >>>>> >>>>> >>>> >>>> >>>> _______________________________________________ >>>> Mapcss mailing list >>>> [email protected] >>>> https://lists.openstreetmap.org/listinfo/mapcss >>>> >>> >>> _______________________________________________ >>> Mapcss mailing list >>> [email protected] >>> https://lists.openstreetmap.org/listinfo/mapcss >> >> >> _______________________________________________ >> Mapcss mailing list >> [email protected] >> https://lists.openstreetmap.org/listinfo/mapcss >> > > _______________________________________________ > Mapcss mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/mapcss
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