[OSM-NI] Área en RAAN

[Felix Delattre]

Sí, la persona hace referencia
(http://osmhv.openstreetmap.de/changeset.jsp?id=28733873) al proyecto
creado en el task manager: http://tasks.hotosm.org/project/709
AlbertKa (http://www.openstreetmap.org/user/AlbertKa) ha hecho un buen
trabajo trazando el bosque a base de la imágen satelital. Los datos
corresponden a Bing. Por lo tanto no debe haber sido una importación,
sino un trabajo manual. Los limites rectos se dan por que no ahí terminó
una o la otra tarea del Tasking Manager.

Saludos.
Felix

On 04/27/2015 09:40 PM, Jaakko Helleranta wrote:
>
> Hola Rodrigo y tod en s,
>
> There are a few possible reasons for symmetrical edits on such scale :
>
> 1) The shapes reflect a physical reality on the ground
> = Not the case here.
>
> 2) The data available that has been used for mapping the area is
> limited in a geometrically symmetric way and that defines the mapping
> result. This can be due to at least
> 2.1) Imported data shapes
> = Unlikely here unless there has, in fact, been an import (that I just
> haven't heard of). So, possible but I'm assuming that this is not the
> case here.
> 2.2) For map data created with imagery (like it seems is quite
> possibly the case here) the imagery used has limits (such as high
> resolution bounds) that then have limited the mapping outcome.
> = This seems like a plausible reason here (without looking at the edit
> history of the data in question).
>
> Finally,
> 3) The area has been mapped using some sort of geographically sliced
> (=restricted) mapping (coordination) tool.
> => As I have set up at least one HOT Tasking Manager job for this area
> (which is visible for the whole world, BTW) and as the task has also
> been shared here and at Bilwi (when Felix and Porfirio were there with
> Unicef) it's really quite possible that this is the story behind this
> data.
>
> It's of course also possible that the reason is a combination of the
> above - or something else.
>
> Perhaps the best way to try to figure the real story behind any edits
> is to check out the history of the data in question [1] and to contact
> (at least some of) the mapper(s) who have created the data in question.
>
> Saludos,
> -Jaakko
>
> [1] Checking the history of data is easiest in JOSM. Just download
> data for an area. Select an object you want to research the history of
> and then simply hit Ctrl+H (as in History). You'll get a popup window
> with the full history of the object. The default tab shows the edit
> history of the tags of the object and the other tab shows the nodes
> that have been part of the object (if its a way=line object). To
> visualize things you need to use a service that does it. I can look
> one up if someone is interested.
>
> --
> Sent from my mobile device.
>
> On Apr 27, 2015 8:56 PM, "Rodrigo Rodríguez" <roirobo en ubuntu.org.ni
> <mailto:roirobo en ubuntu.org.ni>> wrote:
>
>     Hola,
>
>     ¿Alguien sabe qué significa esta región verde tan cuadrada en
>     http://www.openstreetmap.org/#map=10/13.7674/-84.0633&layers=N ? Me
>     parece extraño que, de ser área de selva, esté delimitada de
>     manera tan
>     simétrica?
>
>     Saludos,
>
>     --
>     Rodrigo Rodríguez
>     http://mundonomada.info
>     __
>     Prohibido prohibir. La libertad empieza con una prohibición.
>
>
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