[Talk-ca] Quebec's Bermuda Triangle

Frank Steggink steggink at steggink.org
Tue Apr 10 21:06:50 BST 2012


On 10-4-2012 21:53, Pierre Béland wrote:
> Harald,
> It probably mean that this have been corrected already but that tiles 
> have not been updated yet for all zoom levels. I often see that when a 
> erase a feature, updates can be made rapidly at some zoom levels and 
> not at others. And after a day or two, the edit is completed for all 
> levels.
> //
> /Pierre/
> ------------------------------------------------------------------------
> *De :* Harald Kliems
> *Date/heure :* 2012-04-10 14:25:08
> *A :* Talk-CA OpenStreetMap
> *Cc :*
> *Sujet :* [Talk-ca] Quebec's Bermuda Triangle
> Hi everyone:
> a while ago I noticed this weird triangle west of Vaudreuil:
> http://www.openstreetmap.org/?lat=45.342&lon=-74.24&zoom=9&layers=M
> If you zoom in any further it disappears. I initially thought it was
> some coastline-related flooding issue but since it doesn't extend all
> the way to the Ottawa River that seems unlikely. I've opened the
> region in JOSM and couldn't find anything that might render as this
> weird triangle. Maybe someone will have luck in uncovering its secret.
> Best,
> Harald.
> -- 
> Please use encrypted communication whenever possible!
> Key-ID: 0x199DC50F
> _______________________________________________
> Talk-ca mailing list
> Talk-ca at openstreetmap.org
> http://lists.openstreetmap.org/listinfo/talk-ca
>
>
> _______________________________________________
> Talk-ca mailing list
> Talk-ca at openstreetmap.org
> http://lists.openstreetmap.org/listinfo/talk-ca
The triangle is probably caused by the shapefile which is used for 
rendering the coastline at levels 9 and below. This shapefile isn't 
updated very often. I believe it is a different one than the file used 
for levels 10 and above, which should be updated about once a week.

Frank



More information about the Talk-ca mailing list