A quick progress report on creating .kap charts from SASplanet using
MAPC2MAPC64 as suggested by Baikal in this thread
For the moment, I've been able to output charts in kap format for a single Navionics
layer (z17) from a rather large download (about 50 NM x 15 NM, yielding a 120 Mo+ folder from z14 to z17)
After several trial and error attemps
- Download the Navionics charts (in the default .png format) using the selection manager (choose type of selection, draw on screen
, tick required zoom levels, hit 'start')
- When done (about one hour), using the 'last selection' command from the 'selection' icon, 'stitch' in .jpeg mode, checking .map georeferencing files, spliting the image in (N=) vertical x horizontal chunks (8 x 5 in my case) and saving to some folder a dummy file named (XXX).jpg, then hit 'start'
You will get in that folder 2N files named (XXX)_1-1.jpg, (XXX)_1.1.map; (XXX)_1-2.jpg, (XXX)_1.2.map...
- Using (in my case a licensed version of )MAPC2MAPC64, set 'output' parameters as follows:
- uncheck 'reduce from 24...',
- 'image save scale' to 300 dpi,
- output Kap colors to 63
(default values give a very poor image, but I am not claiming these parameters are optimal)
- On front window, use 'prepare a batch of maps...',
1 - For 'Choose files...', select first .map file in the relevant folder
2 - 'Specify Processing...' to 'Kap marine
charts', accept default
3 - 'Write Batch...'
You will follow the kap creating process in a DOS command window
You finally get N kap files that open fine in Opencpn
Folder size is about 100 Mo (about the same size as the original Navionics download folder)
A quick check shows precise georeferencing re other charts
I am going to investigate whether I can create kap charts from several Navionics layers in one go...