John Willis <jo...@mac.com> wrote: > Substance=gas > Substance:detailed:multiphase_gas > Substance:state=multi
That is not coherent. Do you mean that (substance=gas) is for mainly gas or gas-only? If it is gas only (substance=gas), it can be multiple gaseous products. But it is not multiphase. And then state=gas, not state=multi. >> substance=multi is about OK as a shorthand. Using multi -- instead of >> actual values -- may also imply you are not going to give further >> detailed tagging. >> substance=multiphase is really awkward. > > I think it would be substance:detailed:multiphase_gas for a particular item, > not as a general description. > > Otherwise, it is multi for the state or matter... Right? Right, multi for state. My previous proposals were: 1. substance:state = * or substance:phase = * values limited to list eg.: gas, liquid, solid (cables), slurry (=liquid+solid particles), multi (=multiphase, mostly gas and liquid, possibly particles) 2. I advocated for phase/state=multi or multiphase substance=[multi-valued] eg. substance=oil;gas;water _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
