Hi,
I am not sure about the lower limit of 1. Zero may be acceptable. The
upper limit should be checked for as some Garmin receivers have problems
with file names\ prefixes longer than eight characters, which comes from
the old MSDOS FAT limit of 8 character prefix and 3 character suffix
file name format.
Randolph J. Herber
On 4/7/2020 5:08 AM, Gerd Petermann wrote:
Hi all,
in the garmin forum there is a discussion about the range :
https://forum.openstreetmap.org/viewtopic.php?pid=782395#p782395
The current options.txt says
--family-id=integer
This is an integer that identifies a family of products. Range: [1..9999]
Default: 6324
This limit is neither checked nor is it correct. The corresponding value is
stored in a two byte field and most mkgmap sources interpret it as a
16-bit-unsigned integer.
However, in class uk.me.parabola.tdbfmt.HeaderBlock the field is stored in a
short (signed 16-bit-int).
My conclusion: We should print a warning when the value given in --family-id is <
0 or > 32767.
Gerd
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