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

Tue Apr 3 11:58:49 BST 2012

Hi Gerd,

On Mon, Apr 02, Gerd Petermann wrote:

> > > 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.
> 
> What is the value that the patched splitter reports for the coords occupancy?
> Here is what I see for a small file:
> ...
> ***********************************************************
> Final statistics
> ***********************************************************
> Needed dictionary entries: 25 of 65535
> coords occupancy
> MAP occupancy: 7.544.535
> ...

With the patched version:

Needed dictionary entries: 414 of 65535
coords occupancy
MAP occupancy: 1.014.076.753

  Thorsten

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Thorsten Kukuk, Project Manager/Release Manager SLES
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