Thread: Converting JNX to raster IMG

AlexWhiter
I think option 2 and default, that is No NT and GMP container does not work , I always get as option 3, i.e. NT and GMP

Kind regards

Abedul

The main difference between non-NT in GMP and NT maps I'm aware of is RGN5 block is only present in NT-format maps.
RGN5 consists of a number of Huffman tables used to compress polygons' and polylines' coordinates. The structure of these tables as well as the decoding algorithm
are yet to be explored.

To check if jnx2img really produced a NT-map, you can open LOG file in TEMP folder of the converter, and search for 'huffman' word.
If you see something like this:

Bytes used by rgn huffman area geometry: 277

then the IMG is an NT map.
And if the number of bytes is zero, then non-NT map was made.

Alex Whiter, many thanks for your answers.
A new question
May I add a DEM file to the img derived from JNX to see heights on BaseCamp ?

Kind regards

Originally Posted by Abedul

May I add a DEM file to the img derived from JNX to see heights on BaseCamp ?

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Originally Posted by Cnfhbr

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Cnfhbr

How do you get it ??
Please explain a little bit the proccess

I finally did a Project with new map , 4 levels, andgetting an img container included DEM file inside it, installed the Project on BaseCamp...but I coud not get heigths when I draw a new route on the map.

Kind regards

Originally Posted by Abedul

Cnfhbr

How do you get it ??
Please explain a little bit the proccess

I create such maps using the standard means of MPC ('Contain Raster Image' and 'Enable DEM Export').
To get non-standard value (36) of the 3rd TRE parameter (Map series ID) ​​I use the MPCLoader by AlexWhiter.

How were you able to import the DEM without using MPC?

Originally Posted by WHISKEYPORTAL

How were you able to import the DEM without using MPC?

It's not DEM, it's in fact an extension of LBL.
And the converter uses the MPC compiler

That's awesome! I'll give that a shot. Do you have a tutorial on your method?