General concepts
POI: point of interest
OpenStreetMap
- Stores nodes, ways (collection of nodes) and relations (collection of nodes/ways)
- Each element can have tags (key / value pairs):
https://www.openstreetmap.org/node/29190909
| Key | Value |
|---|---|
| name | U Bernauer Straße |
| railway | station |
| station | subway |
| wheelchair | yes |
Edit maps with ID
Query data with overpass
find ping pong tables
overpass query
<query type="node">
<has-kv k="leisure" v="pitch"/>
<has-kv k="sport" v="table_tennis"/>
<bbox-query {{bbox}}/>
</query>
<print mode="meta"/>overpass query including ways (areas)
<union>
<query type="node">
<has-kv k="sport" v="table_tennis"/>
<bbox-query {{bbox}}/>
</query>
<query type="way">
<has-kv k="sport" v="table_tennis"/>
<bbox-query {{bbox}}/>
</query>
<recurse type="down"/>
</union>
<print mode="meta"/>find drinking water / pumps
overpass query
<query type="node">
<has-kv k="amenity" v="drinking_water"/>
<bbox-query {{bbox}}/>
</query>
<print mode="meta"/>find ping pong tables near water
<query type="node">
<has-kv k="amenity" v="drinking_water"/>
<bbox-query {{bbox}}/>
</query>
<query type="node">
<around radius="300"/>
<has-kv k="leisure" v="pitch"/>
<has-kv k="sport" v="table_tennis"/>
</query>
<print mode="meta"/>Export and share with GeoJSON
{
"type": "FeatureCollection",
"features": [
{
"geometry": {
"type": "Point",
"coordinates": [
13.3192854,
52.4904865
]
}
}
]
}