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[mkgmap-dev] MDR success and a couple of questions

From Steve Ratcliffe steve at parabola.me.uk on Tue Sep 22 15:23:42 BST 2009


I've managed to construct a working MDR file with all of 2 POIs in it.

This is with sections 1 (with empty subsections), 4, 9, 10, 11, 15.
That appears to be the minimum number of sections to get anything to

Interestingly, MDR 15 doesn't appear to be used much.  It supplies
auto-completion results when typing in the search boxes, but the
actual search results show the actual labels of the points.

So 4 and 9 are required but I don't completely understand them, so
does anyone know or speculate what the second byte in MDR 4 is?
The wiki says 'kind of index', suggesting that it tells you which
sections use that POI type.  If that is what is meant then what is
the mapping?

Secondly any ideas on MDR 9?  The first record always appears to be 01
01 00 00, and that is enough to make searching work in
my simple example, but beyond that I have no idea.


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