I've done some code review. AFAIK each road can have up to 4 labels. But there is no ref field and no field for the highway symbols. It is not yet clear to me how the 4 label fields are used in the devices and Mapsource/Basecamp. That's what I've found out so far: - In case the first label starts with a symbol code character the part until the first whitespace is displayed as symbol (my Nüvi 1490 displays the complete first label as symbol). - If the first label contains the symbol character plus text without whitespace the second label is shown as street name. - The whole first label (excluding the symbol character) is used for address search. This is an mkgmap problem and might be fixed easily. - I've never seen the third and/or fourth label in Mapsource/Basecamp/device so I don't know how they are used by Garmin. I expect that there have been some discussion in the past about this but I didn't start a search for this. Maybe someone has a hint for a good thread in the mailing list. WanMil
Hi,
I tried to remove the name from motorway_links and other _links. My first approach was simple: highway=motorway_link { delete name }
This changed nothing! Mmmh, I looked into the source code and observed that the action { name 'abc' } is different to { set name='abc' }
After using { name 'abc' } it is not possible to remove or to change the name using the style. So I changed all rules to { set name='abc' }
This improved things a bit but the refs were still displayed. Then I noticed that there is a lot of automatic name handling in the StyledConverter:
The ref is composed of the tags mkgmap:display_name, ref, int_ref, nat_ref and reg_ref. If there is no name set the composed ref is used as name.
So the final rule to remove the name from the motorway_link is highway=motorway_link { delete name; delete mkgmap:display_name; delete ref; delete ref; delete int_ref; delete nat_ref; delete reg_ref }
I think this is not very intuitive?! Without having a look into the source code I would have never been able to remove the name.
I wonder if it would be better to implement these hard coded rules within the style so anybody can see what happens and can easily influence the naming:
1. Create a new mkgmap tag mkgmap:ref which is used to set the ref field in the garmin map. Without setting mgkmap:ref the ref field will be empty. This makes mkgmap:display_name superfluous. Another advantage is that the ref, nat_ref etc. tags can be removed from the builtin-tag-list.
2. Set the name using the tag mkgmap:name. Remove the { name 'abc' } action. This might be controversial and requires changes in all styles.
What do you think?
WanMil _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://lists.mkgmap.org.uk/mailman/listinfo/mkgmap-dev