On Tue, Mar 26, 2013 at 05:44:05PM -0000, Geoff Sherlock wrote:
>OK, I think I see how the concatenation is done now.
>
>I changed my lines file to thus (relation tag route_display_name is set in
>relations):
>
>type=route & route_display_name=* {
> apply {
> set
>route_display_name='$(route_display_name),${route_display_name}';
> }
>}
>(highway=track | highway=bridleway | highway=cycleway | highway=footway) &
>route_display_name=* {set name='${route_display_name}' continue
>with_actions}
>
>But I do not get a comma separated list of names, still just a single name
>showing in Mapsource or Basecamp - and without a comma.
>
>Also why does this does this not replace names already defined for a
>track/bridleway etc!!!!???? It only gets set if the name is not already set.
Did you have a look at the the default style? It sets bus route $ref in
highway=bus_stop relations. It also sets the boundary names on boundary
lines (not sure if that is still being used). But, let me quote it:
(type=boundary | type=multipolygon) & boundary=administrative & name=*
{ apply
{
set mkgmap:boundary_name='$(mkgmap:boundary_name)/${name}' |
'${name}';
}
}
The ${name} refers to the relation attribute. The 'set' and
$(mkgmap:boundary_name) [note $(...) instead of ${...}] refers to the
relation member. This command will do one of two things:
(1) if 'mkgmap:boundary_name' is not already set on the member, assigns
it to the 'name' of the relation
(2) otherwise, appends '/' and the relation name to mkgmap:boundary_name
This parameter is used in the default/lines file to assign a name for
the boundary:
boundary=administrative { name '${mkgmap:boundary_name}' }
Technically, I guess you could write something like this directly:
apply { set name='$(name)/${name}' | '${name}' }
However, this could be a bad idea, because it would overwrite the name
of any relation member, such as a section of a river or a highway (if
they are part of the relation).
Also, have a look at the styles/default/routes-* relations. I used to
build a multi-layer map that had --style=routes-bus and
--style=routes-bicycle in separate transparent layers, selectable on the
maps menu in the device.
Best regards,
Marko
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