Tag Archives: bike

generating maps for Garmin Etrex Vista HCx from openstreetmap osm files

I needed a map of Ireland.

You need to have java installed.
Here’s how I made it:

Download Splitter(here)
Download mkgmap (here)
Download the open street map from geofabrik(here)
Update: I recommend to download *.osm.pbf files.
Install all java stuff in a directory called, for example, in a linux box, ~/gps/
In the same directory, put all the other files you will download following this post.

java -Xmx1500M -jar splitter-rxxx/splitter.jar your_map.osm --output=xml

then edit template.args
add something like:


then run:

java -Xmx1500M -jar mkgmap-rxxxx/mkgmap.jar -c template.args

the 1500M is the amount of memory.
Try to allow as much memory as you can.
If you see:

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at it.unimi.dsi.fastutil.longs.LongArrays.ensureCapacity(LongArrays.java:107)
at it.unimi.dsi.fastutil.longs.LongArrayList.ensureCapacity(LongArrayList.java:202)
at it.unimi.dsi.fastutil.longs.LongArrayList.size(LongArrayList.java:271)
at uk.me.parabola.splitter.SparseInt2ShortMapInline.resizeTo(SparseInt2ShortMapInline.java:97)
you need more memory

A file named osmmap.img will be generated.
Rename it as gmapsupp.img, then copy it to the “Garmin” directoy in you GPS’ memory card.

Bike Fools

What annoys me of people who ride bikes to go to work/university:

  1. That I, myself also ride a bike.
  2. They don’t wear helmets
  3. They ignore traffic signals (Ignore in the sense of ignorance rather than indifference)
  4. They ignore everyone else including decent bikers like me
  5. They behave like (Gosh it hurts to write it) people in cars :'(

bike trip: paris – honfleur

Cities: paris – magnanville – manthelon – brionne – honfleur – trouville – lisieux

paris – magnanville : 78 km
magnanville – manthelon : 68 km
manthelon – brionne : 51 km
brionne – honfleur : 61 km
honfleur – trouville – lisieux : 70 km ?

Places where we stayed
magnanville: Hotel Eclipse
manthelon: friend’s house (aunt and uncle of a friend of mine)
brionne: coeur de lion
honfleur: hotel Lutea