maemo.org - Talk - View Single Post - From Google Maps to GPS

TA-t3	2007-12-09 , 18:42
Posts: 3,841 \| Thanked: 1,079 times \| Joined on Nov 2006	#13

The Retail Stores file starts out right away with something that isn't normal OV2 at all.. the first byte is supposed to be 00, 01 or 02 (depending on the subtype of OV2), this one begins with 0x64. Your Home Depot file is a type 0x01 file and reads fine with my tools. Presumably the Retail Stores file also contain shop names or some such, but there's no plain text in the file so it's either encrypted or just compressed.

I'll take a look at this (probably over Christmas, as I'm going on mission next week and will only be sporadically active). I figured out the original OV2 formats from scratch (before I later found partial docu at the TT web site, lol), so maybe this one'll work out too.

EDIT: Here's some partial output that my old tools dump out. There seems to be some legit-looking locations there.. (the first 'Ignoring record type 100' is the 0x64 I mentioned above).

Code:

Ignoring record type 100;42896.95736,  64.85676, 42790.27950,  19.64521
;42862.39810,  64.85676, 42790.27950,  19.64521
;42862.39810,  36.57136, 42790.27950,  19.64521
;42851.20389,  36.57136, 42790.27950,  19.64521
;42851.20389,  33.83485, 42790.27950,  19.64521
;42835.06816,  33.83485, 42790.27950,  19.64521
;42835.06816,  33.20660, 42790.27950,  19.64521
;42832.52526,  33.20660, 42790.27950,  19.64521
;42832.52526,  32.75769, 42790.27950,  19.64521
;42791.83144,  32.75769, 42790.27950,  19.64521
;42791.83144,  21.34309, 42790.27950,  19.64521
Ignoring record type 28;42791.83144,  32.75769, 42790.27950,  21.34309
Ignoring record type 28;42832.52526,  32.75769, 42791.83144,  19.64521
;42832.52526,  21.28228, 42791.83144,  19.64521
...

Compare this to your Home Depot file:

Code:

;42881.27549,  64.85918, 42790.28814,  19.68855
;42862.54722,  64.85918, 42790.28814,  19.68855
;42847.73596,  64.85918, 42790.28814,  19.68855
;42831.72602,  64.85918, 42790.28814,  19.68855
;42831.72602,  37.95230, 42790.28814,  19.68855
;42830.00244,  37.95230, 42790.28814,  19.68855
;42827.76049,  37.95230, 42790.28814,  19.68855
;42827.45250,  37.95230, 42790.28814,  19.68855
 42790.28814,  21.97187, "Lihue - Kauai"
 42791.62059,  21.33261, "Kapolei"
..

(My tool prints Type 1 records with the ';' in front, Type 2 records are those two last ones with names.)
Looks promising. We can get back to this later (presumably in another thread, not hijacking this one..) over Christmas or thereabouts.

__________________
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Last edited by TA-t3; 2007-12-09 at 18:51.

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