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Map calibration requirements

 
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dwplj



Joined: 20 Jul 2008
Posts: 12

PostPosted: Tue Aug 05, 2008 11:12 am    Post subject: Map calibration requirements Reply with quote

Hello all,

Just a quick question regarding map calibration. How much of the Ozi Calibration file is required? The reason I ask is I'd like to generate calibration files outside of Ozi and not have to load them in to check. Below is a working map calibration:

OziExplorer Map Data File Version 2.2
OS50 Map Square SD
F:\Maps\tif\os50_Square_SD.tif
1 ,Map Code,
Ord Srvy Grt Britn,WGS 84, 0.0000, 0.0000,WGS 84
Reserved 1
Reserved 2
Magnetic Variation,,,W
Map Projection,(BNG) British National Grid,PolyCal,No,AutoCalOnly,No,BSBUseWPX,No
Point01,xy, 0, 0,in, deg, , ,N, , ,W, grid, SD, 00000, 99999,N
Point02,xy,19999,19999,in, deg, , ,N, , ,W, grid, SD, 99999, 00000,N
Point03,xy, , ,in, deg, , ,N, , ,W, grid, SD, , ,N
Point04,xy, , ,in, deg, , ,N, , ,W, grid, SD, , ,N
Point05,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point06,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point07,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point08,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point09,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point10,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point11,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point12,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point13,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point14,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point15,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point16,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point17,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point18,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point19,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point20,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point21,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point22,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point23,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point24,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point25,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point26,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point27,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point28,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point29,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Point30,xy, , ,in, deg, , ,N, , ,W, grid, , , ,N
Projection Setup,,,,,,,,,,
Map Feature = MF ; Map Comment = MC These follow if they exist
Track File = TF These follow if they exist
Moving Map Parameters = MM? These follow if they exist
MM0,Yes
MMPNUM,4
MMPXY,1,0,0
MMPXY,2,19999,0
MMPXY,3,19999,19999
MMPXY,4,0,19999
MMPLL,1, -3.540034, 54.385501
MMPLL,2, -2.000015, 54.395322
MMPLL,3, -2.000015, 53.496452
MMPLL,4, -3.507289, 53.486948
MM1B,4.999561
LL Grid Setup
LLGRID,Yes,5 Sec,Yes,255,16711680,0,5 Sec,0,16777215,7,1,Yes,x
MOP,Map Open Position,0,0
IWH,Map Image Width/Height,20000,20000


Can I get away with not providing anything below the Projection Setup,,,,,,,,,, line? Hope so!!

Cheers,

Duncan
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kruch
Site Admin


Joined: 02 Jul 2006
Posts: 5673

PostPosted: Tue Aug 05, 2008 1:45 pm    Post subject: Reply with quote

1. IWH is absolutely necessary - it is map dimensions descriptor.
2. You can omit "empty" PointXY lines in your generated file.
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dwplj



Joined: 20 Jul 2008
Posts: 12

PostPosted: Tue Aug 05, 2008 4:41 pm    Post subject: Reply with quote

Thanks Kruch!

Do I need the MMPLL lines at all?

Ta,

Duncan
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kruch
Site Admin


Joined: 02 Jul 2006
Posts: 5673

PostPosted: Tue Aug 05, 2008 5:18 pm    Post subject: Reply with quote

To sum it up, in Ozi calibration file, TB requires:

5th line (map datum)
Map Projection
Projection Setup
MMPXY *
MMPLL *
IWH
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