forked from hans/Nominatim
304 lines
13 KiB
Markdown
304 lines
13 KiB
Markdown
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## Search
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Nominatim indexes named (or numbered) features with the OSM data set and a subset of other unnamed features (pubs, hotels, churches, etc)
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Search terms are processed first left to right and then right to left if that fails.
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Both searches will work: [pilkington avenue, birmingham](//nominatim.openstreetmap.org/search?q=pilkington+avenue,birmingham), [birmingham, pilkington avenue](//nominatim.openstreetmap.org/search?q=birmingham,+pilkington+avenue)
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(Commas are optional, but improve performance by reducing the complexity of the search.)
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Where house numbers have been defined for an area they should be used: [135 pilkington avenue, birmingham](//nominatim.openstreetmap.org/search?q=135+pilkington+avenue,+birmingham)
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### Special Keywords
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Various keywords are translated into searches for specific osm tags (e.g. Pub => amenity=pub). A current list of [special phrases](https://wiki.openstreetmap.org/wiki/Nominatim/Special_Phrases) processed is available.
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### Parameters
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```
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https://nominatim.openstreetmap.org/search?<params>
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https://nominatim.openstreetmap.org/search/<query>?<params>
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```
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* `format=[html|xml|json|jsonv2|geojson|geocodejson]`
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* Output format
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* defaults to `html`
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* `json_callback=<string>`
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* Wrap json output in a callback function (JSONP) i.e. `<string>(<json>)`
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* `accept-language=<browser language string>`
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* Preferred language order for showing search results, overrides the value specified in the "Accept-Language" HTTP header.
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* Either uses standard rfc2616 accept-language string or a simple comma separated list of language codes.
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* `q=<query>`
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* Query string to search for.
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* Alternatively can be entered as:
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* `street=<housenumber> <streetname>`
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* `city=<city>`
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* `county=<county>`
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* `state=<state>`
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* `country=<country>`
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* `postalcode=<postalcode>`
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**(experimental)** Alternative query string format for structured requests.
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Structured requests are faster and require fewer server resources. **Do not combine with `q=<query>` parameter**.
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* `countrycodes=<countrycode>[,<countrycode>][,<countrycode>]...`
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* Limit search results to a specific country (or a list of countries).
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* `<countrycode>` should be the ISO 3166-1alpha2 code, e.g. `gb` for the United Kingdom, `de` for Germany, etc.
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* `viewbox=<x1>,<y1>,<x2>,<y2>`
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* The preferred area to find search results. Any two corner points of the box are accepted in any order as long as they span a real box.
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* `bounded=[0|1]`
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* defaults to 0
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* Restrict the results to only items contained with the viewbox (see above).
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* Restricting the results to the bounding box also enables searching by amenity only.
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* For example a search query of just `"[pub]"` would normally be rejected but with `bounded=1` will result in a list of items matching within the bounding box.
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* `polygon=[0|1]`
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* defaults to 0
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* Output polygon outlines for items found **(deprecated, use one of the polygon_* parameters instead)**
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* `addressdetails=[0|1]`
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* defaults to 0
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* Include a breakdown of the address into elements
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* `email=<valid email address>`
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* If you are making large numbers of request please include a valid email address or alternatively include your email address as part of the User-Agent string.
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* This information will be kept confidential and only used to contact you in the event of a problem, see [Usage Policy](https://operations.osmfoundation.org/policies/nominatim/) for more details.
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* `exclude_place_ids=<place_id,[place_id],[place_id]`
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* If you do not want certain openstreetmap objects to appear in the search result, give a comma separated list of the place_id's you want to skip. This can be used to broaden search results. For example, if a previous query only returned a few results, then including those here would cause the search to return other, less accurate, matches (if possible)
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* `limit=<integer>`
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* defaults to 10
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* Limit the number of returned results.
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* `dedupe=[0|1]`
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* defaults to 1
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* Sometimes you have several objects in OSM identifying the same place or object in reality. The simplest case is a street being split in many different OSM ways due to different characteristics.
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* Nominatim will attempt to detect such duplicates and only return one match; this is controlled by the dedupe parameter which defaults to 1. Since the limit is, for reasons of efficiency, enforced before and not after de-duplicating, it is possible that de-duplicating leaves you with less results than requested.
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* `debug=[0|1]`
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* defaults to 0
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* Output assorted developer debug information. Data on internals of nominatim "Search Loop" logic, and SQL queries. The output is (rough) HTML format. This overrides the specified machine readable format.
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* `polygon_geojson=1`
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* Output geometry of results in geojson format.
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* `polygon_kml=1`
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* Output geometry of results in kml format.
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* `polygon_svg=1`
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* Output geometry of results in svg format.
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* `polygon_text=1`
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* Output geometry of results as a WKT.
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* `polygon_threshold=0.0`
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* defaults to 0.0
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* Simplify the output geometry before returning. The parameter is the
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tolerance in degrees with which the geometry may differ from the original
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geometry. Topology is preserved in the result.
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* `extratags=1`
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* Include additional information in the result if available, e.g. wikipedia link, opening hours.
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* `namedetails=1`
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* Include a list of alternative names in the results.
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* These may include language variants, references, operator and brand.
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### Examples
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##### XML with polygon points
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* [https://nominatim.openstreetmap.org/search?q=135+pilkington+avenue,+birmingham&format=xml&polygon=1&addressdetails=1](https://nominatim.openstreetmap.org/search?q=135+pilkington+avenue,+birmingham&format=xml&polygon=1&addressdetails=1)
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* [https://nominatim.openstreetmap.org/search/gb/birmingham/pilkington%20avenue/135?format=xml&polygon=1&addressdetails=1](https://nominatim.openstreetmap.org/search/gb/birmingham/pilkington%20avenue/135?format=xml&polygon=1&addressdetails=1)
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* [https://nominatim.openstreetmap.org/search/135%20pilkington%20avenue,%20birmingham?format=xml&polygon=1&addressdetails=1](https://nominatim.openstreetmap.org/search/135%20pilkington%20avenue,%20birmingham?format=xml&polygon=1&addressdetails=1)
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```xml
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<searchresults timestamp="Sat, 07 Nov 09 14:42:10 +0000" querystring="135 pilkington, avenue birmingham" polygon="true">
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<place
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place_id="1620612" osm_type="node" osm_id="452010817"
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boundingbox="52.548641204834,52.5488433837891,-1.81612110137939,-1.81592094898224"
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polygonpoints="[['-1.81592098644987','52.5487429714954'],['-1.81592290792183','52.5487234624632'],...]"
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lat="52.5487429714954" lon="-1.81602098644987"
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display_name="135, Pilkington Avenue, Wylde Green, City of Birmingham, West Midlands (county), B72, United Kingdom"
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class="place" type="house">
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<house_number>135</house_number>
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<road>Pilkington Avenue</road>
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<village>Wylde Green</village>
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<town>Sutton Coldfield</town>
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<city>City of Birmingham</city>
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<county>West Midlands (county)</county>
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<postcode>B72</postcode>
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<country>United Kingdom</country>
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<country_code>gb</country_code>
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</place>
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</searchresults>
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```
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##### JSON with SVG polygon
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[https://nominatim.openstreetmap.org/search/Unter%20den%20Linden%201%20Berlin?format=json&addressdetails=1&limit=1&polygon_svg=1](https://nominatim.openstreetmap.org/search/Unter%20den%20Linden%201%20Berlin?format=json&addressdetails=1&limit=1&polygon_svg=1)
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```json
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{
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"address": {
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"city": "Berlin",
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"city_district": "Mitte",
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"construction": "Unter den Linden",
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"continent": "European Union",
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"country": "Deutschland",
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"country_code": "de",
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"house_number": "1",
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"neighbourhood": "Scheunenviertel",
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"postcode": "10117",
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"public_building": "Kommandantenhaus",
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"state": "Berlin",
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"suburb": "Mitte"
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},
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"boundingbox": [
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"52.5170783996582",
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"52.5173187255859",
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"13.3975105285645",
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"13.3981599807739"
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],
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"class": "amenity",
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"display_name": "Kommandantenhaus, 1, Unter den Linden, Scheunenviertel, Mitte, Berlin, 10117, Deutschland, European Union",
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"importance": 0.73606775332943,
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"lat": "52.51719785",
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"licence": "Data \u00a9 OpenStreetMap contributors, ODbL 1.0. https://www.openstreetmap.org/copyright",
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"lon": "13.3978352028938",
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"osm_id": "15976890",
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"osm_type": "way",
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"place_id": "30848715",
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"svg": "M 13.397511 -52.517283599999999 L 13.397829400000001 -52.517299800000004 13.398131599999999 -52.517315099999998 13.398159400000001 -52.517112099999999 13.3975388 -52.517080700000001 Z",
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"type": "public_building"
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}
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```
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##### JSON with address details
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[https://nominatim.openstreetmap.org/?format=json&addressdetails=1&q=bakery+in+berlin+wedding&format=json&limit=1](https://nominatim.openstreetmap.org/?format=json&addressdetails=1&q=bakery+in+berlin+wedding&format=json&limit=1)
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```json
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{
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"address": {
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"bakery": "B\u00e4cker Kamps",
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"city_district": "Mitte",
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"continent": "European Union",
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"country": "Deutschland",
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"country_code": "de",
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"footway": "Bahnsteig U6",
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"neighbourhood": "Sprengelkiez",
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"postcode": "13353",
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"state": "Berlin",
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"suburb": "Wedding"
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},
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"boundingbox": [
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"52.5460929870605",
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"52.5460968017578",
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"13.3591794967651",
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"13.3591804504395"
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],
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"class": "shop",
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"display_name": "B\u00e4cker Kamps, Bahnsteig U6, Sprengelkiez, Wedding, Mitte, Berlin, 13353, Deutschland, European Union",
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"icon": "https://nominatim.openstreetmap.org/images/mapicons/shopping_bakery.p.20.png",
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"importance": 0.201,
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"lat": "52.5460941",
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"licence": "Data \u00a9 OpenStreetMap contributors, ODbL 1.0. https://www.openstreetmap.org/copyright",
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"lon": "13.35918",
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"osm_id": "317179427",
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"osm_type": "node",
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"place_id": "1453068",
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"type": "bakery"
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}
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```
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##### GeoJSON
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[https://nominatim.openstreetmap.org/search?q=17+Strada+Pictor+Alexandru+Romano%2C+Bukarest&format=geojson](https://nominatim.openstreetmap.org/search?q=17+Strada+Pictor+Alexandru+Romano%2C+Bukarest&format=geojson)
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```json
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{
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"type": "FeatureCollection",
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"licence": "Data © OpenStreetMap contributors, ODbL 1.0. https://osm.org/copyright",
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"features": [
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{
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"type": "Feature",
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"properties": {
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"place_id": "35811445",
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"osm_type": "node",
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"osm_id": "2846295644",
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"display_name": "17, Strada Pictor Alexandru Romano, Bukarest, Bucharest, Sector 2, Bucharest, 023964, Romania",
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"place_rank": "30",
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"category": "place",
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"type": "house",
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"importance": 0.62025
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},
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"bbox": [
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26.1156689,
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44.4354754,
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26.1157689,
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44.4355754
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],
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"geometry": {
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"type": "Point",
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"coordinates": [
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26.1157189,
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44.4355254
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]
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}
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}
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]
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}
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```
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##### GeocodeJSON
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[https://nominatim.openstreetmap.org/search?q=%CE%91%CE%B3%CE%AF%CE%B1+%CE%A4%CF%81%CE%B9%CE%AC%CE%B4%CE%B1%2C+%CE%91%CE%B4%CF%89%CE%BD%CE%B9%CE%B4%CE%BF%CF%82%2C+Athens%2C+Greece&format=geocodejson](https://nominatim.openstreetmap.org/search?q=%CE%91%CE%B3%CE%AF%CE%B1+%CE%A4%CF%81%CE%B9%CE%AC%CE%B4%CE%B1%2C+%CE%91%CE%B4%CF%89%CE%BD%CE%B9%CE%B4%CE%BF%CF%82%2C+Athens%2C+Greece&format=geocodejson)
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```json
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{
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"type": "FeatureCollection",
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"geocoding": {
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"version": "0.1.0",
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"attribution": "Data © OpenStreetMap contributors, ODbL 1.0. https://osm.org/copyright",
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"licence": "ODbL",
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"query": "Αγία Τριάδα, Αδωνιδος, Athens, Greece"
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},
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"features": [
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{
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"type": "Feature",
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"properties": {
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"geocoding": {
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"type": "place_of_worship",
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"label": "Αγία Τριάδα, Αδωνιδος, Άγιος Νικόλαος, 5º Δημοτικό Διαμέρισμα Αθηνών, Athens, Municipality of Athens, Regional Unit of Central Athens, Region of Attica, Attica, 11472, Greece",
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"name": "Αγία Τριάδα",
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"admin": null
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}
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},
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"geometry": {
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"type": "Point",
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"coordinates": [
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23.72949633941,
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38.0051697
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]
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}
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}
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]
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}
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``` |