How to make custom maps for garmin gps how to#
The remainder of this how-to explains how to create a map for the UK - swap this for any particular geofabrik extract you want. A reliable source that I use is geofabrik. This is simply a chunk of the total planet-wide map for a specific area. Rather than interact with OSM directly, we'll download a pre-made extract (done by someone else).
How to make custom maps for garmin gps install#
At the time of writing, the most recent version of splitter was r174. osm.gz files which you can also get, thus saving download bandwidth and time. These are preferable as they are much smaller than the. pbf files, which are a compressed, binary form of OSM data. Recent versions of splitter work directly with. Splitter takes a chunk of OSM data and splits it into tiles that are small enough for mkgmap to work on (mkgmap crashes if you give it too much data). Later on, you can experiment with batch files and relative paths. To make things simple to start with, I recommend placing the unzipped mkgmap.jar and splitter.jar in the same folder as your OSM data. This is just a matter of downloading a few files and placing them in a directory that you'll remember. At the very least, you have to be able to know how to install software and open the command prompt.įinally, there are a whole host of complexities you can add to splitting and map-making.if you want more details start at the FAQ, then if that doesn't solve it have a read of my tiddly_wiki which is an ongoing compilation of the millions of command-line options for splitter and mkgmap, and of various other ancillary tools and processes (e.g. The following instructions assume a modicum of familiarity with computers and that you are using Windows.
If you want to do more advanced stuff see my other pages (particularly, modify styles and custom TYP files). The main assumption is that you want to generate the map yourself, rather than rely on one of the pre-built maps (e.g. This page explains, step by step, how to create a routable Garmin gmapsupp.img file that you can upload to your GPS unit. How to create free maps for your Garmin GPS unit: a step-by-step guide Introduction
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