[mkgmap-dev] contour lines closed : the lost patch found !

Fri Sep 25 10:23:34 BST 2009


Martin Simon schrieb:
> 2009/9/24 David <david.tlp at orange.fr>:
>   
>> Hello there,
>>
>> Few weeks ago I reported a bug about closed contour lines. Someone answered
>> me that was an old error. I found the lost patch in the mailing list and I
>> tested it on a huge file. It works both for lines and polygons.
>>
>> All the best to the dev team,
>> David
>>     
>
> Hi!
>
> I'm working on maps that display elevation by colors in the map
> background and use srtm2osm-generated contour lines for that.
> As I need to use the contour lines as polygons, I get serious problems
> when contours get cut at the tile border.
>
> Could this patch solves the issue?
>
>
>   
No, I'm sorry, this patch will not help at clipped polygons.
I see there arise a new problem with the douglas peucker filter, as it 
has no knowing that some of the nodes lies on the border and therefore 
must not be moved.