map2jnx(1) convert map to JNX


map2jnx -q 1..100 -s 411|422|444 -p 0.. -c "copyright notice" -m "BirdsEye" -n "Unknown" -x file1_scale,file2_scale,...,fileN_scale file1 file2 ... fileN outputfile


map2jnx is a helper utility for qlandkartegt(1) to convert a map to JNX format.

The projection of the input files must have the same latitude along a pixel row. Mecator and Longitude/Latitude projections match this this property. Transversal Merkator or Lambert projections do not.

To rectify a geotiff map, you can use the gdalwarp(1) command, e.g.

gdalwarp -t_srs "EPSG:4326" inputfile outputfile

Scale levels must be pass in same order as level files pointed. Empty and zero values equal to autodetect. We can point only needed levels, like:

  -x 45356,,,75; -x ,,,,75

Calculated levels table can be found:

Most common values for different map scales:

  JNX scale              Map scale
  -------------          ---------
  78125-31250            1:1 000 000
  20834-7813             1:500 000
  7813-3125              1:200 000
  3125-2084              1:100 000
  2084-782               1:50 000
  782-32                 1:25 000
  32-21                  1:10 000
  21-14                  1:5000, 1:2000


-q 1..100
The JPEG quality from 1 to 100. Default is 75
-s 411|422|444
The chroma subsampling. Default is 411
-p 0..
The product ID. Default is 0
-c string
The copyright notice. Default is "Unknown"
-m string
The subscription product name. Default is "BirdsEye"
-n string
The map name. Default is "Unknown"
-z number
The z order (drawing order). Default is 25
-x file1_scale,file2_scale,...,fileN_scale
Override levels scale. Default: autodetect