[mkgmap-dev] [PATCH v5] - min arc length fixes

Sat Aug 29 03:12:49 BST 2009

Hi Mark,

I spent some time testing short arcs and managed to find some routing 
problems where mapsource will route in one direction but not in the 
reverse direction. This looks like a mapsource bug to me, so I am 
curious if it is seen with all versions of mapsource, or even if others 
can reproduce it. I tested with version 6.13.7 of mapsource, and builds 
1143, 1155 and 1155 with the v5 patch of mkgmap.

The test map is tiny, so you may have trouble finding it unless you use 
the gdb file. Its someplace over Malaysia (N1 19.785 E103 28.403). Note 
that the coordinates were very carefully chosen to select the maximum 
length arc that demonstrated this problem. The length of the short-arc 
shown in gpsmapedit is 5.4 m.

Garvan

Mark Burton wrote:
> v5 
>
> in case people are still using this patch, i have reissued it without 
> the stuff that is now in commit 1152.
>
> if you are using this patch and think it should also be committed -
> please say - it didn't seem conclusive that is was useful when we last
> discussed it
>   

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