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<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Diggernaut: Documentation for Meta-Language | Geospatial Data | Nodes</title>
<meta name="description" content="What is OSM nodes and what methods you can use to work with them.">
<meta name="keywords" content="Diggernaut, scraping, web scraping, scraper, web scraper, meta-language, make scraper, scraper for websites, learning to scrape, data acquisition, create scraper, online scraper, content scraper, scraper for shop, scraper for classifieds, coding scraper, geospatial">
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<div class="container">
<h1>Geospatial Data</h1>
<div>
<h2>Nodes</h2>
<p class="flow-text">
The node is the basic element of the OSM geomodel, consisting of only one point and has parameters such as:
longitude, latitude and identifier.
</p>
<p class="flow-text">
To get information about specific node, you can use the <span class="hlt2">node</span> command, which can find nodes by ID.
</p>
<p class="flow-text">
You can use following parameters in the command:
</p>
<table class="responsive-table highlight">
<thead>
<tr>
<th data-field="parameter">Parameter</th>
<th data-field="description">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>id</td>
<td>Node ID.</td>
</tr>
</tbody>
</table>
<div class="row">
<div class="col s12">
<ul class="tabs excdark">
<li class="tab col s1">
<a class="active" href="#code">Digger code</a>
</li>
<li class="tab col s1">
<a class="active" href="#log">Log</a>
</li>
<li class="tab col s1">
<a class="active" href="#data">Data source</a>
</li>
</ul>
</div>
<div id="code" class="col s12">
<pre class="language-yaml">
<code class="language-yaml"># SWITCHING TO THE GEO CONTEXT
- geo:
provider: osm
do:
# Find node by ID
- node:
id: 67253662
do:</code>
</pre>
</div>
<div id="log" class="col s12">
<table id="datatable_logs" class="striped responsive-table debug-log" role="grid" aria-describedby="datatable_logs_info">
<thead>
<tr role="row">
<th width="11%" class="sorting_desc" tabindex="0" aria-controls="datatable_logs" rowspan="1" colspan="1" aria-label="Time: activate to sort column ascending"
aria-sort="descending">Time</th>
<th width="4%" class="sorting" tabindex="0" aria-controls="datatable_logs" rowspan="1" colspan="1" aria-label="Level: activate to sort column ascending">Level</th>
<th class="word-wrapper sorting_disabled" rowspan="1" colspan="1" aria-label="Message">Message</th>
</tr>
</thead>
<tbody>
<tr role="row" class="odd">
<td class="sorting_1">2018-05-29 21:41:39:382</td>
<td>info</td>
<td class=" word-wrapper">Stopped by exit command</td>
</tr>
<tr role="row" class="even">
<td class="sorting_1">2018-05-29 21:41:39:356</td>
<td>
<span class="log-debug">debug</span>
</td>
<td class=" word-wrapper">
<span data-cr="more" data-full="">Page content: ...</span>
</td>
</tr>
<tr role="row" class="odd">
<td class="sorting_1">2018-05-29 21:41:37:385</td>
<td>info</td>
<td class=" word-wrapper">Retrieving page (POST/JSON): https://lz4.overpass-api.de/api/interpreter</td>
</tr>
<tr role="row" class="even">
<td class="sorting_1">2018-05-29 21:41:37:376</td>
<td>
<span class="log-debug">debug</span>
</td>
<td class=" word-wrapper">Node ID: 67253662</td>
</tr>
<tr role="row" class="odd">
<td class="sorting_1">2018-05-29 21:41:37:367</td>
<td>
<span class="log-debug">debug</span>
</td>
<td class=" word-wrapper">Getting geo information about node</td>
</tr>
<tr role="row" class="even">
<td class="sorting_1">2018-05-29 21:41:37:358</td>
<td>
<span class="log-debug">debug</span>
</td>
<td class=" word-wrapper">Setting up geo provider: osm</td>
</tr>
<tr role="row" class="odd">
<td class="sorting_1">2018-05-29 21:41:37:350</td>
<td>info</td>
<td class=" word-wrapper">Starting scrape</td>
</tr>
<tr role="row" class="even">
<td class="sorting_1">2018-05-29 21:41:37:325</td>
<td>
<span class="log-debug">debug</span>
</td>
<td class=" word-wrapper">Setting up default proxy</td>
</tr>
<tr role="row" class="odd">
<td class="sorting_1">2018-05-29 21:41:37:315</td>
<td>
<span class="log-debug">debug</span>
</td>
<td class=" word-wrapper">Setting up surf</td>
</tr>
<tr role="row" class="even">
<td class="sorting_1">2018-05-29 21:41:37:283</td>
<td>info</td>
<td class=" word-wrapper">Starting digger: 1 [2158]</td>
</tr>
</tbody>
</table>
</div>
<div id="data" class="col s12">
<pre class="language-html">
<code class="language-html"><html>
<head></head>
<body>
<body_safe>
<elements>
<changeset>55420427</changeset>
<id>67253662</id>
<lat>38.1112268</lat>
<lon>13.3524434</lon>
<tags>
<capital>4</capital>
<gfoss_id>6894</gfoss_id>
<is_in>Palermo, Sicilia, Italy</is_in>
<is_in_continent>Europe</is_in_continent>
<is_in_country>Italy</is_in_country>
<is_in_country_code>IT</is_in_country_code>
<name>Palermo</name>
<name_ar>باليرمو</name_ar>
<name_ca>Palerm</name_ca>
<name_de>Palermo</name_de>
<name_el>Παλέρμο</name_el>
<name_es>Palermo</name_es>
<name_fa>پالرمو</name_fa>
<name_fi>Palermo</name_fi>
<name_fr>Palerme</name_fr>
<name_he>פלרמו</name_he>
<name_it>Palermo</name_it>
<name_kn>ಪಲೇರ್ಮೋ</name_kn>
<name_la>Panormus</name_la>
<name_lt>Palermas</name_lt>
<name_pl>Palermo</name_pl>
<name_pt>Palermo</name_pt>
<name_ru>Палермо</name_ru>
<name_scn>Palermu</name_scn>
<name_uk>Палермо</name_uk>
<name_zh>巴勒莫</name_zh>
<old_name_el>Πάνορμος</old_name_el>
<place>city</place>
<population>686722</population>
<rank>20</rank>
<safe_source>geodati.gfoss.it</safe_source>
<wikidata>Q2656</wikidata>
<wikipedia>it:Palermo</wikipedia>
</tags>
<timestamp>2018-01-14T01:57:17Z</timestamp>
<type>node</type>
<uid>6757296</uid>
<user>gionax</user>
<version>33</version>
</elements>
<generator>Overpass API 0.7.55.2 3ab0d275</generator>
<osm3s>
<copyright>The data included in this document is from www.openstreetmap.org.
The data is made available under ODbL.</copyright>
<timestamp_osm_base>2018-05-29T18:41:02Z</timestamp_osm_base>
</osm3s>
<version>0.6</version>
</body_safe>
</body>
</html>
</code></pre>
</div>
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<p class="flow-text">
In next chapter we learn how to get shapes for relations.
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