I downloaded a .osm.pbf file at http://download.geofabrik.de/europe.html. I need to convert the data (streets etc) to Graphs so I can calculate routes. I believe these files already work with Nodes but I have trouble reading the data.
I tried using http://www.osmsharp.com/ but I don’t really understand the software. Can someone give me links to a proper library or give me a few tips in how to access the data from the OSM. Some pseudo / example code is fine aswell.
I’m new to openstreetmaps and this kind of parsing, so I’m sorry if this is a rookie question.
I was also totally confused by osmsharp.com - as I recall, there were conflicting requirements in which external libraries to add to a project.
To solve your problem, first consider converting to XML. Osmosis https://wiki.openstreetmap.org/wiki/Osmosis is the best tool for this: during the conversion to XML, you can apply some simple filters and further select a smaller area if needed.
If you plan to do a lot of future work with a large amount of data and need some simpler code to read PBF file format, look at the source code of OSM2MSSql - https://osm2mssql.codeplex.com/ . In the source folder there is osm2mssql\osm2mssql.Importer\OsmReader\ that can read PBF files. It may not have been reviewed as rigorously osmsharp, but I was able to use it in a small project.