Re: [talk-ph] multiple multipolygons for Pampanga River

[Ronny Ager-Wick]

On 2014-02-19 23:44, Eugene Alvin Villar wrote:
On Wed, Feb 19, 2014 at 9:26 PM, Ronny Ager-Wick > wrote:


Thanks for the clarification, Pierre.
Actually, I tagged the relation both with natural=water, water=river and
waterway=riverbank as advised in the wiki (see New Tagging) I assume
this is the recommended way to do it?


When I trace new rivers polygons, I now use natural=water + water=river for 
the closed way/multipolygon relation. This tagging makes much more sense 
than waterway=riverbank, wherein you sometimes have a way crossing across 
the river to close the polygon but the crossing part is not a riverbank.
Yes, that makes sense, I assume that's why they made the new tag. Not sure if 
I should remove the old tag yet though - is the new one rendered everywhere?


And you reminded me of another thing there. I noticed that a previous 
contributor made a small polygon on both sides of a bridge, but as I made 
polygons for the entire river, I joined them under the bridge so that the 
river multipolygon is continuous. My thought was, it's layer=-1, so it'll 
appear below the bridge anyway, and it's not like the river stops on each side 
of the bridge - it still runs under it. I feel making river polygons complete, 
including under bridges and dams, makes the most sense.
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Re: [talk-ph] Project NOAH asking everyone to map in OSM

[Eugene Alvin Villar]

Can I suggest that we use either ref=* or nat_ref=* tag for the DOH
facility code assigned to each hospital? This tag is intended for
indicating reference numbers/codes/IDs as assigned by some official
authority.

http://wiki.openstreetmap.org/wiki/Key:ref

For example, East Avenue Medical Center is assigned the code 504. So we
should add ref=504 or nat_ref=504 to the hospital POI.

You can find a list of DOH facility codes here:
http://uhmis2.doh.gov.ph/doh_facility/rfacilitieslist.php?pageno=1&t=rfacilities&recperpage=ALL



On Tue, Feb 18, 2014 at 6:25 PM, maning sambale
wrote:

> Link here:
> http://maning.github.io/noah_osm_mapping
>
> First challenge are hospitals.
>
> --
> cheers,
> maning
> --
> "Freedom is still the most radical idea of all" -N.Branden
> wiki: http://esambale.wikispaces.com/
> blog: http://epsg4253.wordpress.com/
> --
>
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Re: [talk-ph] Integration of OSM data into governmental datasets

[Eugene Alvin Villar]

Hi Steeve,

Anybody is free to use OSM data. I guess the only possible stumbling block
is the need to comply with the data license OSM is under, which is the Open
Database License. Basically, attribution to OSM is required. And if a
derivative database is published, the derivative database also needs to be
licensed under ODbL since this license is a share-alike license. However,
if one were to only create a derivative work (not a database), then
share-alike is not required.

So if the government were to combine OSM data with their own data to
produce a combined database, then the combined database needs to be
ODbL-licensed. The only exception is if the 2 combined datasets are still
separated from each other (such as layers) and do not refer to each other.
In this case, only the OSM data needs to be ODbL-licensed.

Anyway, there's been talk between OSM and various government agencies for
possible areas of collaboration. DOH is one of them, thanks to your
efforts. Other agencies include DepEd, NAMRIA, DOTC, DILG, and Project NOAH.

Regards,
Eugene



On Fri, Jan 31, 2014 at 6:23 PM, Steeve Ebener <
steeve.ebe...@gaia-geosystems.org> wrote:

> Dear OSM community,
>
>
>
> First of all congratulation and thank you for the wonderful work you has
> done over the past months to improve the layers over the Regions affected
> by typhoon Yolanda.
>
>
>
> In view of the value added brought by your work, and the attention it has
> raised, I was wondering if there is any plan for the government of the
> Philippines to be more proactive in collaborating with you guys on
> integrating the OSM dataset into the governmental one.
>
>
>
> I am primarily thinking about the road and hydrographic network but this
> could very much be extended to other layers as well.
>
>
>
> I am asking this because I am currently involved a project aiming at
> improving the quality, availability and accessibility of core geospatial
> datasets for emergency management and disaster risk reduction and I see the
> connection between the government and the Open Data community as key
> towards achieving this objective.
>
>
>
> We have started working on two countries (The Philippines and Morocco) and
> any insight on the above would therefore be much appreciated. I would be
> happy sharing information about the project if needed.
>
>
>
> Thanks in advance and keep the great work!
>
>
>
> Steeve
>
>
>
> *Steeve Ebener, Ph.D.*
> CEO Gaia GeoSystems
>
> P.O. Box 795 - P.C. 114, Muscat - Oman
> cell: +968 952 57 526
> email: steeve.ebe...@gaia-geosystems.org
>
> web: www.gaia-geosystems.org
>
> Twitter: @GaiaGeosystems, @SIIEMtweets
>
> LinkedIn: http://www.linkedin.com/in/steeveebener
>
>
>
> [image: logo_emails_72]*One Planet, One System*
>
>
>
> *P* *Please don't print this e-mail unless you really need to. Thank you*
>
>
>
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Re: [talk-ph] multiple multipolygons for Pampanga River

[Eugene Alvin Villar]

On Wed, Feb 19, 2014 at 9:26 PM, Ronny Ager-Wick wrote:

>  Thanks for the clarification, Pierre.
> Actually, I tagged the relation both with natural=water, water=river and
> waterway=riverbank as advised in the wiki (see New Tagging) I assume this
> is the recommended way to do it?
>

When I trace new rivers polygons, I now use natural=water + water=river for
the closed way/multipolygon relation. This tagging makes much more sense
than waterway=riverbank, wherein you sometimes have a way crossing across
the river to close the polygon but the crossing part is not a riverbank.
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Re: [talk-ph] multiple multipolygons for Pampanga River

[Pierre Béland]

Hi  Ronny, 

The tagging list would be the best place to have information about the best tag 
to use. Not everyone agrees to follow such votes for tagging where only a few 
people participated.


 
Pierre 




 De : Ronny Ager-Wick 
À : Pierre Béland ; osm-ph  
Envoyé le : Mercredi 19 février 2014 8h26
Objet : Re: [talk-ph] multiple multipolygons for Pampanga River
 


Thanks for the clarification, Pierre.
Actually, I tagged the relation both with natural=water,
  water=river and waterway=riverbank as advised in the wiki (see New
  Tagging) I assume this is the recommended way to do it?

As for Obrero, I haven't been that far north yet :) I only traced
  it up to the point where someone else had traced it. I stopped
  around Sta Rosa: http://www.openstreetmap.org/#map=14/15.4214/120.9354
But, yes I agree, that needs to be retraced. It was probably
  traced from an old lower resolution satellite image like some of
  my own earlier work.

Ronny.


On 2014-02-19 21:01, Pierre Béland wrote:

Ronny,
>
>It is not necessary fo merge the two relations, Each of these
riverbank polygons must be a closed polygon.
>See http://wiki.openstreetmap.org/wiki/Tag:waterway%3Driverbank
>
>
>For the relation 2411084, you must replaced the Tag
  natural=water to waterway=riverbank.
>
>
>North of Obrero the riverbank must be retraced and the island must be traced 
>independently from the riverbank. The island will be included in the relation 
>with the role=inner.  The island is in fact smaller and a smaller river on the 
>right connect to the main river.
>
see http://www.openstreetmap.org/#map=14/15.544/121.0012 
>
>
>
>Pierre 
>
>
>
>
> De : Ronny Ager-Wick 
>À : osm-ph  
>Envoyé le : Mercredi 19 février 2014 1h53
>Objet : [talk-ph] multiple multipolygons for Pampanga River
> 
>
>I've been adding polygons for Pampanga River and some of
  its contributories, 
>starting near Mt Arayat and working myself northward,
  joining up with the 
>existing multipolygon - http://www.openstreetmap.org/relation/2411084. I then 
>worked myself southwards until I found another
  multipolygon for Pampanga River 
>- http://www.openstreetmap.org/relation/2913607 .
>Is there a way to merge these?
>Or doesn't it matter that the river is split into several
  multipolygons as 
>long as they are joined by shared nodes?
>
>Ronny.
>
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Re: [talk-ph] multiple multipolygons for Pampanga River

[Ronny Ager-Wick]

Thanks for the clarification, Pierre.
Actually, I tagged the relation both with natural=water, water=river and 
waterway=riverbank as advised in the wiki (see New Tagging) I assume this is 
the recommended way to do it?


As for Obrero, I haven't been that far north yet :) I only traced it up to the 
point where someone else had traced it. I stopped around Sta Rosa: 
http://www.openstreetmap.org/#map=14/15.4214/120.9354
But, yes I agree, that needs to be retraced. It was probably traced from an 
old lower resolution satellite image like some of my own earlier work.


Ronny.


On 2014-02-19 21:01, Pierre Béland wrote:

Ronny,

It is not necessary fo merge the two relations, Each of these riverbank 
polygons must be a closed polygon.

See http://wiki.openstreetmap.org/wiki/Tag:waterway%3Driverbank

For the relation 2411084, you must replaced the Tag natural=water to 
waterway=riverbank.


North of Obrero the riverbank must be retraced and the island must be traced 
independently from the riverbank. The island will be included in the 
relation with the role=inner.  The island is in fact smaller and a smaller 
river on the right connect to the main river.

see http://www.openstreetmap.org/#map=14/15.544/121.0012

Pierre

--
*De :* Ronny Ager-Wick 
*À :* osm-ph 
*Envoyé le :* Mercredi 19 février 2014 1h53
*Objet :* [talk-ph] multiple multipolygons for Pampanga River

I've been adding polygons for Pampanga River and some of its contributories,
starting near Mt Arayat and working myself northward, joining up with the
existing multipolygon - http://www.openstreetmap.org/relation/2411084. I then
worked myself southwards until I found another multipolygon for Pampanga River
- http://www.openstreetmap.org/relation/2913607 .
Is there a way to merge these?
Or doesn't it matter that the river is split into several multipolygons as
long as they are joined by shared nodes?

Ronny.

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Re: [talk-ph] multiple multipolygons for Pampanga River

[Pierre Béland]

Ronny,

It is not necessary fo merge the two relations, Each of these riverbank 
polygons must be a closed polygon.
See http://wiki.openstreetmap.org/wiki/Tag:waterway%3Driverbank


For the relation 2411084, you must replaced the Tag natural=water to 
waterway=riverbank.

North of Obrero the riverbank must be retraced and the island must be traced 
independently from the riverbank. The island will be included in the relation 
with the role=inner.  The island is in fact smaller and a smaller river on the 
right connect to the main river.
see http://www.openstreetmap.org/#map=14/15.544/121.0012 


Pierre 




 De : Ronny Ager-Wick 
À : osm-ph  
Envoyé le : Mercredi 19 février 2014 1h53
Objet : [talk-ph] multiple multipolygons for Pampanga River
 

I've been adding polygons for Pampanga River and some of its contributories, 
starting near Mt Arayat and working myself northward, joining up with the 
existing multipolygon - http://www.openstreetmap.org/relation/2411084. I then 
worked myself southwards until I found another multipolygon for Pampanga River 
- http://www.openstreetmap.org/relation/2913607 .
Is there a way to merge these?
Or doesn't it matter that the river is split into several multipolygons as 
long as they are joined by shared nodes?

Ronny.

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