The extractor for parsing raw map data from OpenStreetMap.
- Select your interested area in OpenStreetMap.
- Download the raw map data (Overpass API suggested) which is actually in XML-format.
- Compile the project or directly run the binary executable file which is located in
bin\Release\.
PS：I've included a tiny sample map crawled from OSM which is in the name of sample.xml in bin\Release\. Have a try :)
- Language: C#
- IDE: Microsoft Visual Studio 2013
- OS: Windows 7 64-bit with SP1
The code is tested to be runnable in Aug 5th, 2017.
Format: [NodeID]\t[latitude]\t[longitude]
One node/vertex per line with increasing (continuous) ids. E.g.,
0 41.1689665 -8.6444747
1 41.1658735 -8.6444774
2 41.1670798 -8.6424338
3 41.1673856 -8.642543
4 41.1669776 -8.6417132
5 41.1676312 -8.6424866
...
1000 41.1575375 -8.6443184
, which records 1,000 vertices in the road network.
Format: [EdgeId]\t[StartNodeId]\t[EndNodeId]\t[k]\t[lat1]\t[lon1]\t[lat2]\t[lon2]...\t[latk]\t[lonk]
One edge (StartNode -> EndNode) per line with increasing (continuous) ids.
And k refers to the number of points of a polyline representing the shape of the road (including the start and the end node).
I.e., (lat1, lon1) is just the coordinate of StartNode, and (latk, lonk) is the coordinate of EndNode.
E.g.,
0 0 1326 5 41.1689665 -8.6444747 41.1688112 -8.6443785 41.1685579 -8.6440804 41.1683059 -8.6438068 41.1680768 -8.6437482
1 4 5 2 41.1669776 -8.6417132 41.1676312 -8.6424866
...
1500 1499 1494 2 41.1849529 -8.6317477 41.185196 -8.6318118
, which records 1,500 edges in the road network.
Edge 0 represents an edge from node 0 to node 1326 with 5 points representing the shape of the road as a
polyline. And edge 1 represents an edge from node 4 to 5 with 2 points representing the shape, which means the
shape of this road is a straight line segment (i.e., the first point(41.1669776, -8.6417132) is just the coordinate of
node 4 and the second point (41.1676312, -8.6424866) is just the coordinate of node 5).
Format: EdgeId\tWayTypeName\tWayTypeId
One edge per line with increasing (continous) ids. The WayTypeName also includes the "_link" name, e.g., motorway_link. The wayTypeId of
those "_link" way is identical to their corresponding non-"_link" way's wayTypeId, e.g., the wayTypeId of motorway_link is identical to
the one of motorway, i.e., 7.
E.g.
0 motorway_link 7
1 motorway 7
2 motorway 7
3 trunk_link 6
4 residential 1
5 residential 1
...
1500 tertiary 3
, which records the corresponding way types of 1,500 edges.
The relations between wayTypeName and wayTypeId are shown as follows. They range from the most (7) to least (0) important.
For more detail, please refer to the official document in wiki.
Note that there exist many other types of roads in OSM, while I only selected those types which are in major and can be passed by vehicles.
7: motorway
6: trunk
5: primary
4: secondary
3: tertiary
2: unclassified
1: residenotial
7: motorway_link
6: trunk_link
5: primary_link
4: secondary_link
3: tertiary_link