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#1 2013-09-19 01:20:12

Zanderschiff
Member
Registered: 2013-08-13
Posts: 32

A 3D obelisk like the Washington Monument

Hi,
I have a question: is it possible to map an obelisk like the Washington Monument (http://en.wikipedia.org/wiki/Washington_Monument)? The higher it gets, the smaller the object becomes. It ends with a pyramidal roof on it. The basic square on the bottom has a side length of 16.8 metres, in 152 metres of height the side length is only 10.50 metres. The following pyramidal roof has an height of 17.3 metres.
How can I enter this datas in OSM so a 3D renderer shows this correctly. Or is it not possible?

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#2 2013-09-19 07:39:32

Tordanik
Moderator
From: Germany
Registered: 2008-06-17
Posts: 2,835
Website

Re: A 3D obelisk like the Washington Monument

Well, there is a man_made=obelisk proposal. I'm not sure if any 3D renderer already supports it.

If we are talking about modelling such a shape using Simple 3D Buildings, this is not yet possible. However, there was a recent thread in the German forum suggesting a building:shape=sphere tag for spherical building parts. Such a tag could perhaps be extended with values for conic and pyramidal shapes, including truncated pyramids as found in obelisks.


OSM in 3D: OSM2World

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#3 2013-09-19 07:55:32

!i!
Member
Registered: 2009-11-28
Posts: 3,313
Website

Re: A 3D obelisk like the Washington Monument

I know this example, where somebody used building=yes to tag the shape of the obelisk:
http://maps.osm2world.org/?h=128&view=W … ers=B0FFFF

But IMHO this is a cheat and is in conflict with our #1 rule not to tag for renderers wink


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#4 2013-09-19 09:17:04

Zanderschiff
Member
Registered: 2013-08-13
Posts: 32

Re: A 3D obelisk like the Washington Monument

Yes, in particular I meant the modelling of this conical shape. It does not lool like that this man_made=obelisk has keys for the exact measurements. So it seems there is no actual way to put this measurements in the data. sad

Is a obelisk that you can enter and that has steps and viewpoints not a building?

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#5 2013-09-21 11:32:16

!i!
Member
Registered: 2009-11-28
Posts: 3,313
Website

Re: A 3D obelisk like the Washington Monument

At this example, it's only a minor one, that you cant enter: http://de.wikipedia.org/wiki/Siegess%C3 … chwerin%29


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