 |
 |
 |
 |
 |
 |
 |
Road shields and routes
How can I fit more than 2 route refs into a shield?
If the length of the ref is bigger than 8 then Garmin will not show the ref within a shield.
For Oregons the max length is 5!
|
|
before |
after |
So Evw/Tcw/Orw is shown separately as text.
It is most unlikely that more than 3 routes share the same highway .For this purpose we limit ourselves to a maximum of 3 routes.
With three routes you need two separators (/) ,so the maximum length for all refs is 6.
This means that you can play it safe by only taking the first 2 letters of each ref chunk.
1) check if a third ref chunk exists
2) if it does, then reduce each ref chunk to 2 letters
3) finally recreate the ref.
in relations, the totref (ie total refs) gets created for each highway
ie
(route=foot | route=hiking)
{
apply {
set ref='${ref}';
set oref='$(oref)/${ref}' | '${ref}';
}
}
In lines we add the following - the code has not been maximised
oref=* {add part1='${oref|part:"/:1"}'}
oref=* {add part2='${oref|part:"/:2"}'}
oref=* {add part3='${oref|part:"/:3"}'}
# make them only 2 letters
part1=* & part3=* {set part1='${part1 | substring:"0:2"}'}
part1=* & part3=* {set part2='${part2 | substring:"0:2"}'}
part1=* & part3=* {set part3='${part3 | substring:"0:2"}'}
# now put the parts together
oref=* & part3=*{set oref='$(part1)\$(part2)\$(part3) ' }
What if 2 routes have 4 letters each?
Supposing two route each with a 4 letter ref share the same highway?
Unfortunately there is no len() function to determine the length of a ref so we have to check if there is a 4th letter:
part1=* {set p14='${part1|substring:3:4}'}
part2=* {set p24='${part2|substring:3:4}'}
also we need a variable which is set only if there are two routes only (ie p2='two_only')
p2='two_only' & p14=* & p24=* {
set part1='${part1 | substring:"0:3"}' ;
set part2='${part2 | substring:"0:3"}' ;
set oref='$(part1)\$(part2)' ;
}