[mkgmap-dev] [PATCH] apply_once

Sun Jan 3 21:10:02 GMT 2010

On Sun, Jan 03, 2010 at 11:33:36AM +0200, Marko Mäkelä wrote:
> Steve, all,
> 
> Some relations legitimately contain elements in multiple roles.
> An example is bus routes that partially coincide with oneway streets
> or roundabouts.  These are best drawn as closed loops that do cover
> the twoway streets twice (once in role=forward and once in role=backward).
> 
> The attached patch implements an apply_once keyword that will apply the
> commands only once per matching relation member.  OK to commit?

If nobody complains, I will commit the apply_once tomorrow.

I am also planning to append a list of ${ref} of
route=bus|route=ferry|route=subway|route=train|route=tram
relations to highway/railway stop names in the default style.
A list of routes would be appended in parentheses to the ${ref}
of the stop, like this:

Main Street+H123(4,5)

for a node defined like this:

highway=bus_stop
name=Main Street
ref=H123
shelter=yes
[member in type=route route=bus relations with ref=4 and ref=5]

I think that having the route refs in each stop can be useful in the
default style.  In fact, I could include the highway=bus_stop attribute
${route_ref} too, but then sloppy mappers could be happy with that,
not defining bus route relations that would group the stops of a route.

Best regards,

	Marko