[mkgmap-dev] Splitter details question

Wed Jan 13 21:24:09 GMT 2010

> 2nd: Ways should be included if they intersect the bounding box.
> For me it would be perfect if ways are included with all nodes. But it 
> is also ok if all inner nodes and for all parts of the way the first 
> node out of the bounding box is included. This enables me (and others) 
> to calculate the intersection point with the bounding box.
>
>   
You don't have to reinvent the wheel. This code is already in the 
LineClipper and AreaClipper/PolygonClipper classes. As far as I know, it 
is called at import of osm files.

Looking at it, I wonder why there are problems. The poylgonClipper does 
an java.awt.geom.Area.intersect(bounding box). I would expect it to 
return an closed polygon. So why are there incoomplete polygons??

Regards,
Johann