Hi,

Tels wrote:
> This works fine, except for coastlines, where I have two problems:

You're having exactly the same problems as the ti...@home project. The 
project has solved them by artificially closing the coastlines to form 
an ocean polygon. The mechanism to do it is in close-areas.pl if you 
care to have a look.

> * The coastlines are just open lines, but I need closed areas for 
> rendering

Water is always on the right, so the direction of the coastlines is 
important for you.

> * When I download data in the middle of the ocean, no coastline crosses 
> the tile and I do not know that the current tile must be filled 
> completely with water

You need to either download larger areas, or build an index that tells 
you which tile is "blue" and which "white".

> * get a complete, closed coast line (possible for the entire world?)
> and both best via some HTTP request :)

A closed coastline for the entire world would probably be between 100 MB 
and 1 GB of data. Sure you want that?

Bye
Frederik

-- 
Frederik Ramm  ##  eMail [email protected]  ##  N49°00'09" E008°23'33"

_______________________________________________
dev mailing list
[email protected]
http://lists.openstreetmap.org/listinfo/dev

Reply via email to