Bridges are tagged 1, a culvert or tunnel -1, but is a culvert below a tunnel -2 ? Like a metro system ? And what about two basins alongside each other, but in diffent levels ? Its a polder system, a pump lifts the water up to a certain level, sometimes repeatedly. All water levels the same value, none ?

asked 16 Aug '12, 23:21

Hendrikklaas's gravatar image

Hendrikklaas
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if features are really above each other, you can indeed use also higher values. between -5 and 5 is possible. Otherwise, see Circeus' answer.

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answered 17 Aug '12, 06:40

moszkva%20ter's gravatar image

moszkva ter
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Unless they are actually one above the other, you can probably do with only the ele tag. Layer is a tag mostly for display for features that overlap each others. If two features don't overlap, layers are pointless.

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answered 17 Aug '12, 05:05

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Circeus
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question asked: 16 Aug '12, 23:21

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last updated: 17 Aug '12, 06:40

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