Hi all it seems that all family-id values from 1 .. 65535 work fine. A map with value 0 is not listed in MapSource. @Randolph: You must be referring to a differnt option, maybe --mapname? Gerd ________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Randolph J. Herber <army.bronze.star@gmail.com> Gesendet: Dienstag, 7. April 2020 15:07 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] missing check for option --family-id 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.
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