[Tilesathome] Tackling the Z12 tile enclosed by landuse issue

[Gert Gremmen]

I think solution 2 is best.
It cannot be too difficult to create
a plug-in for JOSM that enables to characterize
a full tile as land, sea, desert, saltlake, city or
whatever comes to mind in the future
and uploads those request to the server
for inclusion in oceantiles.dat.

The main problem for josm users is to recognize
that they are actually working on such a area,
as there field of view is generally much smaller
them a tile. It would require josm to
implement a "tiles view" mode. 


Regards,

Gert Gremmen

-----Original Message-----
From: tilesathome-bounces at openstreetmap.org
[mailto:tilesathome-bounces at openstreetmap.org] On Behalf Of Brent Easton
Sent: 2007-12-19 5:40 AM
To: tilesathome at openstreetmap.org
Subject: [Tilesathome] Tackling the Z12 tile enclosed by landuse issue

Have been thinking about solving the problem where a zoom level 12 tile
is completely enclosed within a large landuse=forest area. Currently,
the forest is not renderered. Interested in ideas to approach this. 

So far I have come up with:

1. Use a relation type=enclosed to connect any node or way within  the
tile (role=within) to the enclosing landuse (role=enclosing). Change the
data download to download the enclosing landuse whenever the enclosed
relation is downloaded.

Pros: Simple, easy to implement. Good for smaller enclosing areas. Can
be maintained using JOSM
Cons: Will be clumsy for large enclosing forests. 

2. Expand the current oceantiles process from just water/land to include
other landuse types using other colors as needed.

Pros: Easier to maintain (for people who can cope with png2tileinfo)
Cons: Hard to maintain (for people who cannot cope with png2tileinfo).
More work to implement.


Comments appreciated.

Regards,
Brent.


____________________________________________________________
Brent Easton                       
Analyst/Programmer                               
University of Western Sydney                                   
Email: b.easton at uws.edu.au


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