---
name: "qmt_map2jnx"
section: "1"
platform: "linux"
package: "qmapshack"
version: "1.21.1-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/qmt_map2jnx"
---

# qmt\_map2jnx(1)

convert map to JNX

## NAME

qmt\_map2jnx - convert map to JNX\

## SYNOPSIS

qmt\_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\>\

## DESCRIPTION

**qmt\_map2jnx** is a helper utility for [qmapshack(1)](/qmapshack/1.md) 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 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:

- •

  English: http://whiter.brinkster.net/en/JNX.shtml

- •

  Russian: http://whiter.brinkster.net/JNX.shtml

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

## OPTIONS

**-q**\
\
 	The JPEG quality from 1 to 100. Default is 75\

**-s**\
\
 	The chroma subsampling. Default is 411\

**-p**\
\
 	The product ID. Default is 0\

**-c**\
\
 	The copyright notice. Default is "Unknown"\

**-m**\
\
 	The subscription product name. Default is "BirdsEye"\

**-n**\
\
 	The map name. Default is "Unknown"\

**-z**\
\
 	The z order (drawing order). Default is 25\

**-x**\
\
 	Override levels scale. Default: autodetect\

## SEE ALSO

https://github.com/Maproom/qmapshack/wiki/DocMain\

## AUTHOR

qmt\_map2jnx was written and is currently maintained by Oliver Eichler **\<oliver.eichler@gmx.de\>**.\