Libosmium binding for php or perl?

General talk
1

Hi,

is there a language binding to php or perl for libosmium on Ubuntu?

I have no exprience in C and can’t use the C-Version.

Found the python version and i may use that if there is no other solution. (php prefered)

regards
walter aka wambacher

what i want to do:

  • get live data of ONE relation using the osm api (solved)
  • convert the xml-data to geojson using libosmium (open)
  • display the geojson on a map using leaflet (solved)
2

No, the Python bindings are the only available and maintained bindings.

On other suggestion: Have a look at osm2pgsql, more specifically the flex output. It might be overkill for you, but creating GeoJSON from OSM data in a PostgreSQL database is quite easy.

3

If you’re brave, you might try accessing it via FFI in PHP. Been doing something similar on an old project of mine. As long as you don’t need dozens of calls wrapped, it’s a viable option for PHP. If you need help with that, I might have some time to look into it this weekend.

Update: dealing with objects returned from functions doesn’t seem to be supported properly, so maybe not a good idea

4

I don’t want to stop you from anything, but wrapping libosmium is really difficult, much more so than for many other C libraries. And libosmium is C++, not C. There is a reason there are no other wrappers available.

5

Hi, i’m using osm2pgsql since 2010 and the flex output since 2020, iirc.

And i can’t use osm2pgsql or "osmium export … " because calling external programs from javascript is not the best way (for me).

6

But isn’t that the whole point of an API?

You have data (in this case xml data of a postcode boundary relation), call the appropriate API and process its results.

And that’s supposed to cause problems?
Well then, I’ll get started with the Python lib.

7

Not an answer to your question, but an answer to your use case:

You might want to have a look at leaflet-osm. It can show your downloaded relation xml on a leaflet map directly. No need to convert it to geojson first.

1 Like
8

Hi Ionvia,

that sounds great. Will try it asap.

9

Great, this plugin solved my problems :slight_smile:

After some minor changes tomorrow, my Leaflet based postcode map should do what i wanted.

Thanks
walter