/usr/share/doc/python-pymongo-doc/html/examples/geo.html is in python-pymongo-doc 3.4.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Geospatial Indexing Example — PyMongo 3.4.0 documentation</title>
<link rel="stylesheet" href="../_static/pydoctheme.css" type="text/css" />
<link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT: '../',
VERSION: '3.4.0',
COLLAPSE_INDEX: false,
FILE_SUFFIX: '.html',
HAS_SOURCE: true
};
</script>
<script type="text/javascript" src="../_static/jquery.js"></script>
<script type="text/javascript" src="../_static/underscore.js"></script>
<script type="text/javascript" src="../_static/doctools.js"></script>
<script type="text/javascript" src="../_static/sidebar.js"></script>
<link rel="index" title="Index" href="../genindex.html" />
<link rel="search" title="Search" href="../search.html" />
<link rel="top" title="PyMongo 3.4.0 documentation" href="../index.html" />
<link rel="up" title="Examples" href="index.html" />
<link rel="next" title="Gevent" href="gevent.html" />
<link rel="prev" title="Datetimes and Timezones" href="datetimes.html" />
</head>
<body role="document">
<div class="related" role="navigation" aria-label="related navigation">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="../py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="right" >
<a href="gevent.html" title="Gevent"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="datetimes.html" title="Datetimes and Timezones"
accesskey="P">previous</a> |</li>
<li class="nav-item nav-item-0"><a href="../index.html">PyMongo 3.4.0 documentation</a> »</li>
<li class="nav-item nav-item-1"><a href="index.html" accesskey="U">Examples</a> »</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body" role="main">
<div class="section" id="geospatial-indexing-example">
<h1>Geospatial Indexing Example<a class="headerlink" href="#geospatial-indexing-example" title="Permalink to this headline">¶</a></h1>
<p>This example shows how to create and use a <a class="reference internal" href="../api/pymongo/collection.html#pymongo.GEO2D" title="pymongo.GEO2D"><code class="xref py py-data docutils literal"><span class="pre">GEO2D</span></code></a>
index in PyMongo.</p>
<div class="admonition-see-general-mongodb-documentation admonition seealso">
<p class="first admonition-title">See also</p>
<p class="admonition-title">See general MongoDB documentation</p>
<p class="last"><a class="reference external" href="http://dochub.mongodb.org/core/geo" name="geospatial-indexing-example"><em>geo</em></a></p>
</div>
<div class="section" id="creating-a-geospatial-index">
<h2>Creating a Geospatial Index<a class="headerlink" href="#creating-a-geospatial-index" title="Permalink to this headline">¶</a></h2>
<p>Creating a geospatial index in pymongo is easy:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">from</span> <span class="nn">pymongo</span> <span class="k">import</span> <span class="n">MongoClient</span><span class="p">,</span> <span class="n">GEO2D</span>
<span class="gp">>>> </span><span class="n">db</span> <span class="o">=</span> <span class="n">MongoClient</span><span class="p">()</span><span class="o">.</span><span class="n">geo_example</span>
<span class="gp">>>> </span><span class="n">db</span><span class="o">.</span><span class="n">places</span><span class="o">.</span><span class="n">create_index</span><span class="p">([(</span><span class="s2">"loc"</span><span class="p">,</span> <span class="n">GEO2D</span><span class="p">)])</span>
<span class="go">u'loc_2d'</span>
</pre></div>
</div>
</div>
<div class="section" id="inserting-places">
<h2>Inserting Places<a class="headerlink" href="#inserting-places" title="Permalink to this headline">¶</a></h2>
<p>Locations in MongoDB are represented using either embedded documents
or lists where the first two elements are coordinates. Here, we’ll
insert a couple of example locations:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">result</span> <span class="o">=</span> <span class="n">db</span><span class="o">.</span><span class="n">places</span><span class="o">.</span><span class="n">insert_many</span><span class="p">([{</span><span class="s2">"loc"</span><span class="p">:</span> <span class="p">[</span><span class="mi">2</span><span class="p">,</span> <span class="mi">5</span><span class="p">]},</span>
<span class="gp">... </span> <span class="p">{</span><span class="s2">"loc"</span><span class="p">:</span> <span class="p">[</span><span class="mi">30</span><span class="p">,</span> <span class="mi">5</span><span class="p">]},</span>
<span class="gp">... </span> <span class="p">{</span><span class="s2">"loc"</span><span class="p">:</span> <span class="p">[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">]},</span>
<span class="gp">... </span> <span class="p">{</span><span class="s2">"loc"</span><span class="p">:</span> <span class="p">[</span><span class="mi">4</span><span class="p">,</span> <span class="mi">4</span><span class="p">]}])</span>
<span class="gp">>>> </span><span class="n">result</span><span class="o">.</span><span class="n">inserted_ids</span>
<span class="go">[ObjectId('...'), ObjectId('...'), ObjectId('...'), ObjectId('...')]</span>
</pre></div>
</div>
</div>
<div class="section" id="querying">
<h2>Querying<a class="headerlink" href="#querying" title="Permalink to this headline">¶</a></h2>
<p>Using the geospatial index we can find documents near another point:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">import</span> <span class="nn">pprint</span>
<span class="gp">>>> </span><span class="k">for</span> <span class="n">doc</span> <span class="ow">in</span> <span class="n">db</span><span class="o">.</span><span class="n">places</span><span class="o">.</span><span class="n">find</span><span class="p">({</span><span class="s2">"loc"</span><span class="p">:</span> <span class="p">{</span><span class="s2">"$near"</span><span class="p">:</span> <span class="p">[</span><span class="mi">3</span><span class="p">,</span> <span class="mi">6</span><span class="p">]}})</span><span class="o">.</span><span class="n">limit</span><span class="p">(</span><span class="mi">3</span><span class="p">):</span>
<span class="gp">... </span> <span class="n">pprint</span><span class="o">.</span><span class="n">pprint</span><span class="p">(</span><span class="n">doc</span><span class="p">)</span>
<span class="gp">...</span>
<span class="go">{u'_id': ObjectId('...'), u'loc': [2, 5]}</span>
<span class="go">{u'_id': ObjectId('...'), u'loc': [4, 4]}</span>
<span class="go">{u'_id': ObjectId('...'), u'loc': [1, 2]}</span>
</pre></div>
</div>
<p>The $maxDistance operator requires the use of <a class="reference internal" href="../api/bson/son.html#bson.son.SON" title="bson.son.SON"><code class="xref py py-class docutils literal"><span class="pre">SON</span></code></a>:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">from</span> <span class="nn">bson.son</span> <span class="k">import</span> <span class="n">SON</span>
<span class="gp">>>> </span><span class="n">query</span> <span class="o">=</span> <span class="p">{</span><span class="s2">"loc"</span><span class="p">:</span> <span class="n">SON</span><span class="p">([(</span><span class="s2">"$near"</span><span class="p">,</span> <span class="p">[</span><span class="mi">3</span><span class="p">,</span> <span class="mi">6</span><span class="p">]),</span> <span class="p">(</span><span class="s2">"$maxDistance"</span><span class="p">,</span> <span class="mi">100</span><span class="p">)])}</span>
<span class="gp">>>> </span><span class="k">for</span> <span class="n">doc</span> <span class="ow">in</span> <span class="n">db</span><span class="o">.</span><span class="n">places</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">query</span><span class="p">)</span><span class="o">.</span><span class="n">limit</span><span class="p">(</span><span class="mi">3</span><span class="p">):</span>
<span class="gp">... </span> <span class="n">pprint</span><span class="o">.</span><span class="n">pprint</span><span class="p">(</span><span class="n">doc</span><span class="p">)</span>
<span class="gp">...</span>
<span class="go">{u'_id': ObjectId('...'), u'loc': [2, 5]}</span>
<span class="go">{u'_id': ObjectId('...'), u'loc': [4, 4]}</span>
<span class="go">{u'_id': ObjectId('...'), u'loc': [1, 2]}</span>
</pre></div>
</div>
<p>It’s also possible to query for all items within a given rectangle
(specified by lower-left and upper-right coordinates):</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">query</span> <span class="o">=</span> <span class="p">{</span><span class="s2">"loc"</span><span class="p">:</span> <span class="p">{</span><span class="s2">"$within"</span><span class="p">:</span> <span class="p">{</span><span class="s2">"$box"</span><span class="p">:</span> <span class="p">[[</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">],</span> <span class="p">[</span><span class="mi">5</span><span class="p">,</span> <span class="mi">6</span><span class="p">]]}}}</span>
<span class="gp">>>> </span><span class="k">for</span> <span class="n">doc</span> <span class="ow">in</span> <span class="n">db</span><span class="o">.</span><span class="n">places</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">query</span><span class="p">)</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="s1">'_id'</span><span class="p">):</span>
<span class="gp">... </span> <span class="n">pprint</span><span class="o">.</span><span class="n">pprint</span><span class="p">(</span><span class="n">doc</span><span class="p">)</span>
<span class="go">{u'_id': ObjectId('...'), u'loc': [2, 5]}</span>
<span class="go">{u'_id': ObjectId('...'), u'loc': [4, 4]}</span>
</pre></div>
</div>
<p>Or circle (specified by center point and radius):</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">query</span> <span class="o">=</span> <span class="p">{</span><span class="s2">"loc"</span><span class="p">:</span> <span class="p">{</span><span class="s2">"$within"</span><span class="p">:</span> <span class="p">{</span><span class="s2">"$center"</span><span class="p">:</span> <span class="p">[[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">],</span> <span class="mi">6</span><span class="p">]}}}</span>
<span class="gp">>>> </span><span class="k">for</span> <span class="n">doc</span> <span class="ow">in</span> <span class="n">db</span><span class="o">.</span><span class="n">places</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">query</span><span class="p">)</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="s1">'_id'</span><span class="p">):</span>
<span class="gp">... </span> <span class="n">pprint</span><span class="o">.</span><span class="n">pprint</span><span class="p">(</span><span class="n">doc</span><span class="p">)</span>
<span class="gp">...</span>
<span class="go">{u'_id': ObjectId('...'), u'loc': [2, 5]}</span>
<span class="go">{u'_id': ObjectId('...'), u'loc': [1, 2]}</span>
<span class="go">{u'_id': ObjectId('...'), u'loc': [4, 4]}</span>
</pre></div>
</div>
<p>geoNear queries are also supported using <a class="reference internal" href="../api/bson/son.html#bson.son.SON" title="bson.son.SON"><code class="xref py py-class docutils literal"><span class="pre">SON</span></code></a>:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">from</span> <span class="nn">bson.son</span> <span class="k">import</span> <span class="n">SON</span>
<span class="gp">>>> </span><span class="n">db</span><span class="o">.</span><span class="n">command</span><span class="p">(</span><span class="n">SON</span><span class="p">([(</span><span class="s1">'geoNear'</span><span class="p">,</span> <span class="s1">'places'</span><span class="p">),</span> <span class="p">(</span><span class="s1">'near'</span><span class="p">,</span> <span class="p">[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">])]))</span>
<span class="go">{u'ok': 1.0, u'stats': ...}</span>
</pre></div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="sphinxsidebar" role="navigation" aria-label="main navigation">
<div class="sphinxsidebarwrapper">
<h3><a href="../index.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">Geospatial Indexing Example</a><ul>
<li><a class="reference internal" href="#creating-a-geospatial-index">Creating a Geospatial Index</a></li>
<li><a class="reference internal" href="#inserting-places">Inserting Places</a></li>
<li><a class="reference internal" href="#querying">Querying</a></li>
</ul>
</li>
</ul>
<h4>Previous topic</h4>
<p class="topless"><a href="datetimes.html"
title="previous chapter">Datetimes and Timezones</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="gevent.html"
title="next chapter">Gevent</a></p>
<div role="note" aria-label="source link">
<h3>This Page</h3>
<ul class="this-page-menu">
<li><a href="../_sources/examples/geo.txt"
rel="nofollow">Show Source</a></li>
</ul>
</div>
<div id="searchbox" style="display: none" role="search">
<h3>Quick search</h3>
<form class="search" action="../search.html" method="get">
<div><input type="text" name="q" /></div>
<div><input type="submit" value="Go" /></div>
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related" role="navigation" aria-label="related navigation">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="../py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="right" >
<a href="gevent.html" title="Gevent"
>next</a> |</li>
<li class="right" >
<a href="datetimes.html" title="Datetimes and Timezones"
>previous</a> |</li>
<li class="nav-item nav-item-0"><a href="../index.html">PyMongo 3.4.0 documentation</a> »</li>
<li class="nav-item nav-item-1"><a href="index.html" >Examples</a> »</li>
</ul>
</div>
<div class="footer" role="contentinfo">
© Copyright 2017 - 2015, MongoDB, Inc..
Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.4.9.
</div>
</body>
</html>
|