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#1 2020-07-27 16:06:10

Zkir
Member
From: Хрустальная Москва
Registered: 2009-02-21
Posts: 6,110

Additional roof types (4D Roof table) support in Kendzi3d / F4 Map

Hi Guys,

There are additional roof types described in https://wiki.openstreetmap.org/wiki/OSM-4D/Roof_table
Some of them are very frequent in real buildings, e.g. side_hipped, tripple_skillion, round_skillion.

I've notice that Kendzi3d supports at least some of them, at least by number, e.g. roof:shape=2.7 indeed produces this
Marek27mass.JPG

Are there any plans to support additional roof types globally, i.e. in all major 3d renders, F4 Map, OSMBuildings, osm2world?

If not, what are the current views what to use instead?

Current practice, to construct roof segments individually, like this, looks rather an abuse of the idea of simple buildings.

Last edited by Zkir (2020-07-27 16:06:29)


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#2 2020-07-27 20:23:53

Negreheb
Member
From: Austria
Registered: 2015-11-10
Posts: 584

Re: Additional roof types (4D Roof table) support in Kendzi3d / F4 Map

I don't think so. You could ask https://github.com/kendzi/kendzi3d there, its probably better than here in the Forum.

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#3 2020-07-28 13:49:38

Zkir
Member
From: Хрустальная Москва
Registered: 2009-02-21
Posts: 6,110

Re: Additional roof types (4D Roof table) support in Kendzi3d / F4 Map

Negreheb, thank you very much.
the last commit to kendzi3d repository was 2 years ago...

I am also interested what other guys think smile

Last edited by Zkir (2020-07-28 13:49:56)


Истинные слова не не приятны, приятные слова не истинны.
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#4 2020-08-04 18:53:34

Tordanik
Moderator
From: Germany
Registered: 2008-06-17
Posts: 2,686
Website

Re: Additional roof types (4D Roof table) support in Kendzi3d / F4 Map

I believe it could make sense to add support for a few of the OSM-4D roof shapes (by name, rather than number). Not fully sure which would be good picks, but side_hipped and triple_skillion are possible candidates.

In addition, we might want to support the parameters for roof shapes which are depicted in the diagrams, but have no OSM keys defined for them yet:
267px-Roof2_4_parm.svg.png
We could fill that gap with keys like roof:ridge_distance:right=* for the "l2" parameter in the image above.

So yeah, I think the S3DB roof catalogue could do with some updates. But I'd be interested what other renderer developers think – so far, 3D is one of the topics in OSM with pretty good cross-application standardization, so I would prefer to discuss such changes with a larger group first.

Current practice, to construct roof segments individually, like this, looks rather an abuse of the idea of simple buildings.

Resorting to this is probably necessary more often than it ought to be. But as there'll never be a name for every potential roof shape, some ability to draw geometry to model roofs by hand will remain necessary. Maybe it's worth offering an alternative to building parts for this? This would be a larger change, though.


OSM in 3D: OSM2World

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#5 2020-08-05 00:05:36

Zkir
Member
From: Хрустальная Москва
Registered: 2009-02-21
Posts: 6,110

Re: Additional roof types (4D Roof table) support in Kendzi3d / F4 Map

Hi Tordanik, thank your for your answer smile

Definitely it would be nice to discuss this with all 3D developers. If I support something on my site that is not supported by others, it would not be nice at all. smile

>Maybe it's worth offering an alternative to building parts for this?
But what is this alternative, how could it look like?

What I am is thinking, for quite a long time, that 3D should be generated by AI. If there are tags building=church + architecture=baroque than  baroque church should be generated, which more or less match the building outline.
Not much progress so far smile


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True words are unpleasant; pleasant words are untrue.

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#6 2021-06-30 09:44:46

marek kleciak
Member
Registered: 2010-10-11
Posts: 8,435

Re: Additional roof types (4D Roof table) support in Kendzi3d / F4 Map

Hi Zkir, maybe we should organize one new S3DB conference again. Not physically but as a virtual event?

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#7 Today 13:12:34

BenLorken
Member
Registered: 2021-06-09
Posts: 3

Re: Additional roof types (4D Roof table) support in Kendzi3d / F4 Map

Zkir wrote:

Hi Guys,

There are additional roof types described in https://wiki.openstreetmap.org/wiki/OSM-4D/Roof_table
Some of them are very frequent in real buildings, e.g. side_hipped, tripple_skillion, round_skillion.

I've notice that Kendzi3d supports at least some of them, at least by number, e.g. roof:shape=2.7 indeed produces this
https://wiki.openstreetmap.org/w/images … 27mass.JPG

Are there any plans to support additional roof types globally, i.e. in all major 3d renders, F4 Map, OSMBuildings, osm2world?

If not, what are the current views what to use instead?

Current practice, to construct roof segments individually, like this, looks rather an abuse of the idea of simple buildings.

Unfortunately, there are no applications yet. It seems to be planned to release a new version next year.

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