[talk-ph] Fwd: [OSM-talk] keepright! goes global

maning sambale emmanuel.sambale at gmail.com
Tue Jul 21 06:52:57 BST 2009 

Especially ferry routes.  At least in garmin, you need to connect a
road to the ferry route to be able to use the device for inter-island
navigation.  I don't think this is truly correct.  If there is really
no road between the pier and the pier parking, why should we link
them?

Just a thought.

I agree with Eugene, keepright is not yet optimized for an archipelago
like ours.  But given more feedback, it will get better.

On 7/21/09, George Tujan <gtujan at gmail.com> wrote:
> @marloue: we'll just have to recheck the roads, maning is probably
> right we might have missed something out.
>
> On Tue, Jul 21, 2009 at 1:36 PM, maning
> sambale<emmanuel.sambale at gmail.com> wrote:
>> The plane route shoud connect to a road, that's how I understand it.
>> Same with ferry routes
>>
>> On 7/21/09, Marloue Pidor <murlwe at mail2engineer.com> wrote:
>>> Ohh, but I added a flight route from Davao to Manila. Check the data,
>>> its there but I don't know why it did not appear. So, Technically Davao
>>> is connected to Manila by plane. I will try to add ferry route to
>>> Manila. Its a very long route.
>>>
>>>
>>> murlwe
>>>
>>> <-----Original Message----->
>>>>From: Eugene Alvin Villar [seav80 at gmail.com]
>>>>Sent: 7/21/2009 12:10:35 PM
>>>>To: totor_osm at yahoo.com
>>>>Cc: talk-ph at openstreetmap.org
>>>>Subject: Re: [talk-ph] Fwd: [OSM-talk] keepright! goes global
>>>>
>>>>Hi guys,
>>>>
>>>>I asked the tool's maintainer how the floating island error is
>>> determined.
>>>>Here's his answer:
>>>>http://lists.openstreetmap.org/pipermail/talk/2009-July/038800.html
>>>>
>>>>I've reprinted it here below for convenience:
>>>>
>>>>
>>>>The motto of this check is "you can go everywhere from everywhere".
>>>>
>>>>There is a set of starting points (highways in the center of big cities
>>> that are
>>>>well connected to many other streets) I picked randomly. The check
>>> finds ways
>>>>that are connected to these ways and thus finds a (bigger) set of ways.
>>> This
>>>>procedure is repeated until no more ways are found. Any way that was
>>> not found
>>>>is a floating island.
>>>>
>>>>There are 30 starting points all over the world, one of them in Manila.
>>>>
>>>>Please note that the check will follow any highway and ferries are
>>> included, so
>>>>it _should_ find islands as long as there's a ferry connected to a
>>> highway on
>>>>the island.
>>>>
>>>>So it seems that everything not connected to the main streets of Metro
>>> Manila is
>>>>considered as a "floating island". Mindoro is covered since there is a
>>> ferry
>>>>route from Batangas to Puerto Galera. I think if we can at least sketch
>>> out the
>>>>Ro-Ro routes, we can cover most of the major island. I will also
>>> suggest adding
>>>>Cebu and Davao cities as seeds to minimize problems.
>>>>
>>>>However, this will not cover all the islands (there are about 2,000
>>> inhabited
>>>>islands out of 7,100+ and not all of them have regular ferry routes
>>> [like
>>>>Batanes (?) which is served by flights]) so this means that we cannot
>>> rely on
>>>>keep right to point out all floating island errors. I think a
>>> customized QA tool
>>>>for the Philippines would be needed.
>>>>
>>>>I hope this helps! In the meantime, just uncheck this error and ignore
>>> it until
>>>>we can have a backbone connection for the Philippines and more seeds.
>>>>
>>>>
>>>>Eugene / seav
>>>>
>>>>
>>>>
>>>>
>>>>On Mon, Jul 20, 2009 at 11:13 PM, Totor Osm <totor_osm at yahoo.com>
>>> wrote:
>>>>
>>>>
>>>>I saw some blue arrows indicating 2 roads are close, but not
>>> conneected. In Cebu
>>>>this is the case near Car-Car in the south, and also in the north of
>>> Cebu
>>>>Island. Maybe this could be the reason for the "island" warning on
>>> other
>>>>intersections (Not connected to the world, because of these gaps)?
>>>>
>>>>I'll try to connect them tomorrow.
>>>>
>>>>
>>>>--- On Mon, 7/20/09, Eugene Alvin Villar <seav80 at gmail.com> wrote:
>>>>
>>>>> From: Eugene Alvin Villar <seav80 at gmail.com>
>>>>
>>>>> Subject: Re: [talk-ph] Fwd: [OSM-talk] keepright! goes global
>>>>> To: "Totor Osm" <totor_osm at yahoo.com>
>>>>> Cc: "Openstreetmap.ph.mailing.list" <talk-ph at openstreetmap.org>
>>>>> Date: Monday, July 20, 2009, 2:53 PM
>>>>
>>>>> Ack!
>>>>>
>>>>> I've done a quick look around and it seems that the
>>>>> general Luzon road network is the only one not riddled with
>>>>> these errors!
>>>>>
>>>>>
>>>>> On Mon, Jul 20, 2009 at 10:51 PM,
>>>>> Eugene Alvin Villar <seav80 at gmail.com>
>>>>> wrote:
>>>>>
>>>>> Hi Totor,
>>>>>
>>>>> George also replied asking what these floating island
>>>>> errors mean.
>>>>>
>>>>> As far as I understand it, it means that there is a small
>>>>> network of navigable ways that is not connected to the rest
>>>>> of the network. It does detect "islands" in Metro
>>>>> Manila but I'm quite surprised to find that it seems to
>>>>> think that the Cebu road network is one big error! Maybe a
>>>>> few ferry routes would fix it?
>>>>>
>>>>>
>>>>>
>>>>> I'll ask the creator of keep right. I don't think
>>>>> he anticipated archipelagos. Hehehe.
>>>>>
>>>>> Eugene / seav
>>>>>
>>>>>
>>>>> On Mon, Jul 20, 2009 at 10:43 PM,
>>>>> Totor Osm <totor_osm at yahoo.com>
>>>>> wrote:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Great,
>>>>>
>>>>>
>>>>>
>>>>> but,ehr, could it be that Cebu is just one big floating
>>>>> island ???
>>>>>
>>>>>
>>>>>
>>>>>
>>>>http://keepright.ipax.at/report_map.php?db=osm_XD&zoom=14&lat=10.35578&
>>> lon=123.92528&layers=B0T&ch30=1&ch40=1&ch50=1&ch60=1&ch70=1&ch90=1&ch100
>>> =1&ch110=1&ch120=1&ch130=1&ch150=1&ch160=1&ch170=1&ch180=1&ch191=1&ch192
>>> =1&ch193=1&ch194=1&ch201=1&ch202=1&ch203=1&ch204=1&ch210=1&ch220=1&show_
>>> ign=1&show_tmpign=1
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Whats wrong with the orange arrows? The nodes of the
>>>>> intersections look ok to me...
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --- On Sun, 7/19/09, Eugene Alvin Villar <seav80 at gmail.com>
>>>>> wrote:
>>>>>
>>>>>
>>>>>
>>>>> > From: Eugene Alvin Villar <seav80 at gmail.com>
>>>>>
>>>>> > Subject: [talk-ph] Fwd: [OSM-talk] keepright! goes
>>>>> global
>>>>>
>>>>> > To: "OSM" <talk-ph at openstreetmap.org>
>>>>>
>>>>> > Date: Sunday, July 19, 2009, 4:21 PM
>>>>>
>>>>> > Hi guys,
>>>>>
>>>>> >
>>>>>
>>>>> > The keepright! QA tool for OSM just went almost
>>>>> global.
>>>>>
>>>>> > Previously this tool was only enabled for Europe. This
>>>>> tool
>>>>>
>>>>> > highlights spatial errors (such as overlapping
>>>>> unconnected
>>>>>
>>>>> > ways that have no layer tags to separate them), and
>>>>> tagging
>>>>>
>>>>> > errors (such as POIs without a name tag).
>>>>>
>>>>> >
>>>>>
>>>>> >
>>>>>
>>>>> > Here's a URL centered at the Makati CBD:
>>>>>
>>>>> >
>>>>>
>>>>> >
>>>>http://keepright.ipax.at/report_map.php?db=osm_XD&zoom=15&lat=14.55284&
>>> lon=121.02068&layers=B0T&ch30=1&ch40=1&ch50=1&ch60=1&ch70=1&ch90=1&ch100
>>> =1&ch110=1&ch120=1&ch130=1&ch150=1&ch160=1&ch170=1&ch180=1&ch191=1&ch192
>>> =
>>>>
>>>>=== message truncated ===
>>>
>>>
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>>
>>
>> --
>> 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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>


-- 
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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