openstreetmapandroid-mapsgraphhopper

Reading OSM Map (or other format) files to determine shortest distance from coordinate to path

My App uses openstreetmap files to show waypoint (or coordinates) on a map.

Based on an Openstreet map file: how can I determine the shortest distance from a GPS coordinate to the (walking) path.

Can I read an OSM (map) or .osm file ... to access the paths?

Solution

  • There are some misconceptions. First, the OSM file is not the map file. The OSM file can be used to create a format to make map rendering fast e.g. mapsforge format does this.

    With e.g. GraphHopper you import the OSM file like .pbf or .osm which then creates a graph which can be used for problems you described. Not exactly sure what problem you have though ;)