2013/4/19 St Niklaas <[email protected]> > > Hi Pieren, your Wiki link gets me puzzled. Why is a pipe-line tagged > underground, instead of layer -1 ? I would say or interpret ate a -1 tag as > below something even if it’s just bottom, ground level or surface. Why is > ever decided to tag it this way ?**** > Greetz >
actually the layer tag doesn't state whether something is above, below or on ground. It is only a simple way to say: this object is above (when layer is higher) than this object (layer is lower). Still even for this there are exceptions: on shared nodes they are on the same level (e.g. beginning of bridge). cheers, Martin
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