mapsforge / mapsforge-mapcreator

Old automatic generation for Mapsforge maps.

Mapsforge

See the integration guide and changelog. And read through how to contribute guidelines.

If you have any questions or problems, don't hesitate to ask the Discussions for help.

• Mapsforge project uses a compact file format for fast ad-hoc rendering of OpenStreetMap data.
• We provide tools to compile your own maps with detailed instructions and also precompiled maps.
• It provides simple boilerplate code to build applications for Android that display OpenStreetMap-based maps.
• It provides a library to build standalone applications in Java (instructions).
• Mapsforge maps can be flexibly styled with XML style files (render themes).
• We provide tools & library for POI search and also precompiled POI.
• Mapsforge supports Android 2.3.3 (API level 10) and above.
• Mapsforge is used by many applications.
• Mapsforge is in active development.
• Mapsforge map providers.
• Mapsforge talks.
• Building Mapsforge: set ANDROID_HOME environment variable with the Android SDK installation directory

License

Mapsforge library is under LGPL v3 license, with an important simplification: the constraints mentioned in sections LGPL v3 §4(d) and §4(e) are waived.

This means that you are allowed to convey a Combined Work without providing the user any way to recombine or relink the application and without providing any shared library mechanism.

In other words, you are allowed to include Mapsforge library in your Android application, without making your application open source.

Screenshots

Android

Desktop

mapsforge-mapcreator's Issues

Missing tunnels

In our map creation process we use two external data sources (sea / land) which should follow the layer tag mechanism as all OSM data.

Currently only the sea rectangle has the layer=-5 tag.
We need to add it also in land polygons, as now we have hidden elements, e.g. tunnels.

Multilingual Maps

Use new multi-lingual map feature to produce multi-lingual maps.

I propose two steps:

• at first simply produce new multi-lingual maps with a fixed set of languages (which ones?). This should be easy to do as only the preferred-languages parameter will need changing.
• in a second step produce multi-lingual maps that contain the local language for the map area. This is particularly useful for areas that do not use the latin character set. This is a bit more complex as currently the preferred language is not configurable per map.

On the server we should keep the old set and introduce a new multi-lingual set in parallel in order to continue support for older readers.

Map / POI creation verify

Things can go wrong in server during map / poi build process, producing files with very small size.

From @ludwigb:
"one obvious improvement would be to only copy the new map files over the old ones, if the new ones are not much smaller than the ones being replaced".

Languages per country

Now map creator has a common languages preference for all referred countries.

We can enhance the configuration, providing separate languages preference per country.

Lake Constance issues/missing

When opening a map file created with the mapsforge-mapcreator of Germany (or Germany+Austria+Switzerland) the lake constance seems to be missing, probably since the lake is part of 3 countries the polygon is dropped as it's partly outside each boundary?

Attached is a screenshot with the Kurviger App that uses VTM. Apparently the same behavior was reported for Mapsforge as well. The lake constance should be rendered where the attached screenshot has a "gray hole"

Map creator configuration review

Review map creator configuration, e.g. use Geofabrik structure and polygons.

That will permit us to include all available countries / areas in map creation process.

Unexpected code

Is typo in this line intentional?

Map creator new process

We could change the map creation, in order to avoid continents extraction and speed up the process, e.g.:

• Download .pbf from Geofabrik
• Follow the steps in our Map creation (with coastlines) guide

Some countries are missing on server

Include more countries in map creation process on server.