[mkgmap-dev] [Patch] Overflow in splitter node counters

Mon Apr 2 15:13:52 BST 2012

Hi Gerd,

On Mon, Apr 02, GerdP wrote:

> Hi Thorsten,
> 
> attached is a patch for the problem reported here:
> 
> http://gis.19327.n5.nabble.com/Bug-in-splitter-tp5610856p5610856.html
> 
> I don't have the data nor the machine to test it, so I tried to find all
> places were nodes are counted and changed the variables to long.

Thanks, at least for me it's working now.

> I did not find a good explanation for the small difference in the numbers:
> osmconvert reported 2518069911 nodes, which is
>  ~ 2.518.069.911 -(2^31 - 1) = 370.586.264
> - 2^31 + 370.586.264 =* -1.776.897.384*
> but splitter r200 reported * -1.776.905.107* nodes
> The formatting routine is not the reason. Any ideas?

The SRTM data has some duplicate nodes (duplicate as of same
lat/lon, but different ID). Does one of the tools ignore them?
At least mkgmap warns about them.
Else no, I have no idea.

  Thorsten

-- 
Thorsten Kukuk, Project Manager/Release Manager SLES
SUSE LINUX Products GmbH, Maxfeldstr. 5, D-90409 Nuernberg
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg)