[mkgmap-dev] problems with rendering of long riverbank (multipolygons)

Thu May 19 11:21:04 BST 2011

On Thu, May 19, 2011 at 10:33:14AM +0200, Minko wrote:
>On places where the tile borders are crossing this multipolygon mkgmap 
>has problems with rendering (because the ends of the multipolgygon are 
>way outside the tiles). Splitting up the multipolygon in smaller parts 
>in osm seems not the way to solve these rendering problems because I 
>think it's a bug in mkgmap that should be solved here instead of on 
>osm. Any ideas?

I have understood that it is a splitter problem, not a mkgmap problem. I 
do not know the splitter. How many nodes are there along the 
multipolygon lines? Any nodes relatively near to the tile border?

In Finland, I had a similar problem with Lake Päijänne, which is a 
single huge multipolygon. I have worked around this problem by moving my 
tile borders so that they do not cut through the lake.

Best regards,

	Marko