[mkgmap-dev] Error splitting SRTM data

Fri Sep 23 08:27:01 BST 2011

On Fri, Sep 23, Michael Prinzing wrote:

> On Thu, 22 Sep 2011 16:28:17 +0200, Thorsten Kukuk wrote:
> 
> >On Mon, Sep 19, Michael Prinzing wrote:
> >
> >> srtm2osm has a parameter -corrxy to shift the contour lines. Without
> >> this parameters they are not aligned with the real heights. Is
> >> phyghtmap handling this correct?
> >
> >The official version: I cannot see any code adjusting the alignment
> >of the contour lines. For the area where I'm living, it looks
> >perfect even without.
> 
> Without correction, contour lines created with srtm2osm are shifted
> about 50m to the south and also about 50m to the west. You will need
> some adequate terrain to see it, but take a look at 
> 
> http://www.wanderreitkarte.de/index.php?lon=9.8361&lat=48.6375&zoom=17
> 
> There is a gap in the forest to the west. It should match the contour
> lines, but it doesn't. There is a white way with red border that should
> follow the contour lines, but it also doesn't.

Could it be that the 50m off is a Srtm2Osm bug? Even your
area fits perfect for me.

  Thorsten

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Thorsten Kukuk, Project Manager/Release Manager SLES
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