Hi Steve,
reg. flags==0:
yes, the Hungary demo map contains nodes with flags==0 but it might not be a
good example map. Routing in this map typically gives weird results in Basecamp.
I also see such a node in the transalpin demo map (display tool r552)
| | |
| | | New node
000000b7 | 00002a | 02 | low 2
000000b8 | 00002b | 00 | Flags 0
| | | : no-arcs destclass=0
000000b9 | 00002c | 26 8f 15 | longitude 11.09533 -218
| | | latitude 46.90902 +344
Routing results look OK in this map but it is probably too small for a test
case.
Anyway, I think I'll commit your patch for now and try to find out more about
special cases with end nodes.
Gerd
________________________________________
Von: mkgmap-dev <[email protected]> im Auftrag von Gerd
Petermann <[email protected]>
Gesendet: Mittwoch, 8. Juli 2020 22:35
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] Crash in NodCheck
Hi Steve,
I found no node with low==0 and flag==0 in Garmin maps, but I think there are
ones with flags==0.
I have to double check but I think there are tiles in a demo map for Hungaria.
Gerd
________________________________________
Von: mkgmap-dev <[email protected]> im Auftrag von Steve
Ratcliffe <[email protected]>
Gesendet: Mittwoch, 8. Juli 2020 21:57
An: [email protected]
Betreff: Re: [mkgmap-dev] Crash in NodCheck
Hi
> > the current code in NodCheck (NodFile.java) stops reading route nodes
> when
> > if (low == 0 && flags == 0)
> > return null;
>
> Yes your right that check is not needed, because we know the correct
> size of the section.
Sorry this is wrong; we know the size of the section but the entries are
variable size and there has to be a way to know when we have found the
last one.
I think that flags==0 is the marker. Have you seen any Garmin map with
flags==0?
It seems to me that a node is either on the boundary or has arcs, or
else it is not a routing node.
Steve
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