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[mkgmap-dev] Auto-Merge

From Apollinaris Schoell aschoell at gmail.com on Mon Sep 7 20:47:37 BST 2009

are there 2 points a XY? and you want to merge them?
Then this is wrong input data and must be fixed in osm.
  mkgmap should never merge 2 points if they are on different ways.  
how can a tool decide that these ways are connected or not? often a  
layer tag or bridge tag is missing and routing from a bridge to the  
way under will be hmmm not so good.

On 7 Sep 2009, at 12:39 , Chris-Hein Lunkhusen wrote:

> Mark Burton schrieb:
>>> does mkgmap auto-merge points which have exactly the same coords?
>>> I though the remove-short-arcs option would do this, but last week
>>> I found a routing problem on a netherland motorway which
>>> was caused by such a double node and the map was created
>>> with the remove-short-arcs....
>> Well, given that I have just found (and fixed) a bug in the line
>> clipping code, I can't say for sure that it was working correctly
>> before. It would be interesting to see if your example is OK with the
>> fix in place (shortly to be committed).
> I tested with v1180. mgkmap don't seems to automerge points
> on the same coord.
> A----------way1------------XY--------------------way2----------------B
> X (endpoint of way1) and Y (startpoint of way2) having the
> same coordinate.
> Mapsource is not able to route from A to B directly.
> Chris
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