Incorrect tiles (filled with unwanted data)
Hi all, for a few tiles I have the problem that the tile is filled with unwanted data: The problem: http://gis.19327.n5.nabble.com/file/n5444194/Screenshot_20120131_112548.png On a larger map it's ok: http://gis.19327.n5.nabble.com/file/n5444194/Screenshot_20120131_112622.png Any ideas ? Klaus -- View this message in context: http://gis.19327.n5.nabble.com/Incorrect-tiles-filled-with-unwanted-data-tp5... Sent from the Mkgmap Development mailing list archive at Nabble.com.
On Tue, Jan 31, 2012 at 02:36:10AM -0800, toc-rox wrote:
The problem: http://gis.19327.n5.nabble.com/file/n5444194/Screenshot_20120131_112548.png
On a larger map it's ok: http://gis.19327.n5.nabble.com/file/n5444194/Screenshot_20120131_112622.png
Any ideas ?
I suppose that the incorrectly filled area is part of a multipolygon and the hill should be role=inner of the multipolygon. The multipolygon is apparently being truncated too much by the splitter. Try splitter --overlap=10000 or larger. This did the trick for me for one large lake that I had to split into multiple tiles. Marko
Hi Marko, thanks for the hint - the option "--overlap=10000" solves my problem. The usage help says: --overlap Nodes/ways/rels that fall outside an area will still be included if they are within this many map units. Default is 2000. Could someone explain more detailed the influence of the overlap option ? Thanks - Klaus -- View this message in context: http://gis.19327.n5.nabble.com/Incorrect-tiles-filled-with-unwanted-data-tp5... Sent from the Mkgmap Development mailing list archive at Nabble.com.
On Tue, Jan 31, 2012 at 11:34:44AM -0800, toc-rox wrote:
Nodes/ways/rels that fall outside an area will still be included if they are within this many map units. Default is 2000.
Could someone explain more detailed the influence of the overlap option ?
In short, splitter is "cheating" to save memory and computations. It does not copy complete ways and relations that have at least one node within the current tile. Instead, it defines two tile borders. The inner border is defined as the bounding box. The outer border is the bbox+overlap. All nodes within the outer border will be included. I am not entirely sure about the treatment of ways and relations, but it could be that all ways and relations that refer to the copied nodes will be copied. Marko
participants (2)
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Marko Mäkelä -
toc-rox