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Error while reading calibration coordinates

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Error while reading calibration coordinates Empty Error while reading calibration coordinates

Post  asperge on Fri Oct 30, 2009 8:53 pm

Hello,

I've the following error message : 'Error while reading calibration coordinates', with this map file:

OziExplorer Map Data File Version 2.2
1300_Chancy CH1903
KOMB1300.PNG
1 ,Map Code,
CH-1903,WGS 84, 0.0000, 0.0000,WGS 84
Reserved 1
Reserved 2
Magnetic Variation,,,E
Map Projection,(SUI) Swiss Grid,PolyCal,No,AutoCalOnly,No,BSBUseWPX,No
Point01,xy, 0, 0,in, deg, , ,N, , ,E, grid, , 480000, 122000,N
Point02,xy, 7002, 4798,in, deg, , ,N, , ,E, grid, , 497500, 110000,N
Point03,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point04,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point05,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point06,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point07,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point08,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point09,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point10,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point11,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point12,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point13,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point14,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point15,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point16,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point17,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point18,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point19,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point20,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point21,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point22,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point23,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point24,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point25,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point26,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point27,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point28,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point29,xy, , ,in, deg, , ,N, , ,grid, grid, , , ,N
Point30,xy, , ,in, deg, , ,N, , ,grid, 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,2,6999,0
MMPXY,3,7002,4961
MMPXY,4,1,4962
MMPLL,1, 5.883551, 46.239959
MMPLL,2, 6.110328, 46.242854
MMPLL,3, 6.113148, 46.131244
MMPLL,4, 5.886770, 46.128331
MM1B,2.499212
LL Grid Setup
LLGRID,No,1 Min,Yes,65535,16711935,4227327,1 Min,16711935,16777215,8,1,Yes,x
Other Grid Setup
GRGRID,Yes,1 Km,No,5450740,12632256,1 Km,5450740,16777215,8,1,Yes,Yes,No,x
MOP,Map Open Position,0,0
IWH,Map Image Width/Height,7003,4963

asperge

Cantidad de envíos : 49
Fecha de inscripción : 2009-10-26

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Error while reading calibration coordinates Empty Re: Error while reading calibration coordinates

Post  orux on Sat Oct 31, 2009 2:30 pm

Hi, asperge.

This .map has not got the coordinates of the corners:
MMPXY,1,0,0
MMPXY,2,6999,0
MMPXY,3,7002,4961
MMPXY,4,1,4962
MMPLL,1, 5.883551, 46.239959
MMPLL,2, 6.110328, 46.242854
MMPLL,3, 6.113148, 46.131244
MMPLL,4, 5.886770, 46.128331

But you can easily calibrate it by hand, using the grid coordinates:
Point01,xy, 0, 0,in, deg, , ,N, , ,E, grid, , 480000, 122000,N
Point02,xy, 7002, 4798,in, deg, , ,N, , ,E, grid, , 497500, 110000,N

How to:
Error while reading calibration coordinates Ejemplo

I need to improve OruxMapsDesktop, in order to solve this situations.

orux
orux
orux

Cantidad de envíos : 3946
Fecha de inscripción : 2009-07-06

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Error while reading calibration coordinates Empty calibration coordinates

Post  asperge on Sat Oct 31, 2009 6:16 pm

Thanks a lot Jose for your help.
Perhaps i understand nothing about the map format, but i've searched a little bit and i think found the 'pattern' which generates 'my' error.

99% percent of the time, my map files have border points which represent a 'straight' square:

MMPXY,1,0,0
MMPXY,2,6999,0
MMPXY,3,6999,4799
MMPXY,4,0,4799

The first point has the same x location has the point 4, the point 3 has the same y location has the point 4,etc...

So we have a classical squares with angles which have 90 degrees.
But sometimes we have some 'distorted' squares (call we still call them squares? or perhaps it's polygons)

Here is an example:

MMPXY,1,200,0
MMPXY,2,7199,0
MMPXY,3,7199,4798
MMPXY,4,199,4798

As you can see the x location of point 1 (200) is not exactly the same as x location of point 4 (199). I am sure that i've the error message with ORUXMAPSDESKTOP when i've this type of coordinates.
What do you think of this? As i know very little about this format, perhaps i'm telling only nonsense! Smile

By the way, i guess you know already very well the oziexplorer format, but for your information i found this:
http://www.rus-roads.ru/gps/help_ozi/map_file_format.html

asperge

Cantidad de envíos : 49
Fecha de inscripción : 2009-10-26

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Error while reading calibration coordinates Empty Re: Error while reading calibration coordinates

Post  orux on Sat Oct 31, 2009 7:05 pm

Hi, asperge;

You are right 100%

OruxMapsDesktop looks for a "rectangle", starting at 0,0 point, because an OruxMaps calibration file needs the coordinates of the corners (not exactly).

80% (more or less) of Ozi maps have got this pattern:
MMPXY,1,0,0
MMPXY,2,6999,0
MMPXY,3,6999,4799
MMPXY,4,0,4799

But there are a lot of maps with different points instead (for example, all the maps with white margins).

I have to implement some formulas in OruxMapsDesktop to transform the coordinates of these type of maps. This week sure I will have ready a new version with this feature.

orux
orux
orux

Cantidad de envíos : 3946
Fecha de inscripción : 2009-07-06

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Error while reading calibration coordinates Empty Re: Error while reading calibration coordinates

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