[mkgmap-dev] FW: mkgmap in NYC

Mon Nov 3 16:12:22 GMT 2014

On Sat, Nov 1, 2014 at 6:03 PM, Brian Egge <brianegge at gmail.com> wrote:

> Hi Ben,
>
> The latest maps you've created are working well - I can find addresses in
> NYC.
>
> The address search isn't quite as fluid as the Garmin maps, but perhaps
> this is related to how the map file is created. For "311 W 51st St", I must
> enter in "W 51" in order to find the street. With a Garmin map, I can input
> '50', and it will show me a list of streets and avenues.
>

Interesting. I don't know the details of the implementation of the address
search in mkgmap so I don't know what the Garmin maps are more flexible.
Does anybody have any ideas?

> I'm not sure how streets names are shortened. In OSM, we have 'West 51st
> Street' and that becomes 'W 50st St'. However, when it's part of a route,
> it doesn't get shortened. Hence 'West 178th Street
> <http://www.openstreetmap.org/way/44763890>' is listed as 'West 178th
> Street (US 9)'. Since not all West's becomes W, one can't guess correctly
> which one to use.
>

I have some rules in my style file to shorten the names

highway=* { name '${name|subst: Street=> St|subst: Avenue=> Ave| ...
|subst:Ouest =>O }' }

I can give you the whole list I use if you're interested. This rule is in
resources/styles/default/lines but I'm not sure why the street name doesn't
get shortened when it's part of a route.

Sometimes names are shortened too much, as in 'West Lane' becomes 'W Ln',
> but I can't find any code which is doing this either.
>

This is a bug in my implementation of the shortening. Fixing this issue is
on my TODO list.

I've also been compiling my own map of the northeast, but with less success
> than when I use your weekly map. The main issue I'm having right now is I
> can only find cities by searching in all-caps. This is quite odd because
> the cities are shown in mixed case. If I search for NEW YORK, I'm able to
> find addresses, just like I can on your map. However, searching for 'New
> york', 'New York', or 'Ne' yields no results. I've tried including /
> excluding the "--lower-case" flag, but it makes no difference on my Nuvi
> 1450. Any idea what is causing the issue with the case while searching?
>

I've never seen this. Here are the options that I'm using for splitter /
mkgmap.

java -Xmx7500M -jar ~/osm/splitter/dist/splitter.jar
--geonames-file=~/osm/data/cities1000.zip
--precomp-sea=~/osm/data/sea_20141027.zip --output=o5m --mapid=24244000
--max-threads=1 --status-freq=0 --max-areas=50 united-states-141029.o5m

java -Xmx7500M -jar -Dlog.config=~/osm/confs/logging.properties
~/osm/mkgmap/dist/mkgmap.jar --latin1 --gmapsupp --index --route
--min-size-polygon --series-name="OSM United States 2014.10.29"
--family-name="OpenStreetMap United States 2014.10.29"
--location-autofill=bounds,is_in,nearest --remove-ovm-work-files
--bounds=~/osm/data/bounds_20141027.zip
--precomp-sea=~/osm/data/sea_20141027.zip --generate-sea
--add-pois-to-areas --process-destination --process-exits
--pois-to-areas-placement=entrance=main;entrance=yes;building=entrance
--check-roundabout-flares --remove-short-arcs --family-id=24244
--product-id=1 --make-opposite-cycleways --drive-on-right
--check-roundabouts --housenumbers -c template.args --description="OSM
United States 2014.10.29"

Hopefully this will help you out. You should definitely be able to get a
usable map for a smaller region of the US.

Ben
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