Phil <phil_...@bigpond.com> writes:

> On 09/11/12 11:06, Greg Troxel wrote:
>>
>> You could edit OSM to make your town up
>> to date (without copying from proprietary maps, of course).  I've done
>> that in my town, including entering trails, so that OSM is now the best
>> map available.
>>
>
> It turns out that adding a couple missing streets to OSM was nowhere 
> near as difficult as I had imagined.

I'm glad to hear it.  I hope you will find it fun to keep adding other
details.  I had a plan to make trail maps all by myself, long ago
(around 1999), but found it too daunting and never got to it, and was
glad to discover OSM, with tools, the database, and the community
already there.

A bit OT, but something I think most viking users would find
interesting: the program mkgmap (described on the OSM wiki) converts OSM
data to Garmin format, for use with etrex/nuvi/oregon/etc.  There is
also 'osmand' that runs on android to display maps (from offline vector
data).

> The only minor problem that I have not solved yet is how to have Viking 
> download the new map rather than use the existing cached map. If I 
> change the zoom level then the new map is downloaded. Perhaps the 
> simplest option is to delete the cached map?

Right-click on the 'mapnik' layer on the layer pane, and find 'reload
all onscreen maps'.  I think that will cause you to reload tiles that
you know are out of date, but not burden the server re-requesting
everything.

By default, viking caches OSM tiles for a long time, to comply with
OSM's tile usage policy (basically due to limited resources to provide
tile service to the world).

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