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| <h1 id="Lucene_Net_Spatial_Prefix_Tree" data-uid="Lucene.Net.Spatial.Prefix.Tree" class="text-break">Namespace Lucene.Net.Spatial.Prefix.Tree |
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| <p>The Spatial Prefix package supports spatial indexing by index-time tokens |
| where adding characters to a string gives greater resolution.</p> |
| <p>Potential Implementations include:</p> |
| <ul> |
| <li><p><a href="http://en.wikipedia.org/wiki/Quadtree">http://en.wikipedia.org/wiki/Quadtree</a></p> |
| </li> |
| <li><p><a href="http://en.wikipedia.org/wiki/Geohash">http://en.wikipedia.org/wiki/Geohash</a></p> |
| </li> |
| <li><p><a href="http://healpix.jpl.nasa.gov/">http://healpix.jpl.nasa.gov/</a></p> |
| </li> |
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| <h3 id="classes">Classes |
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| <h4><a class="xref" href="Lucene.Net.Spatial.Prefix.Tree.Cell.html">Cell</a></h4> |
| <section><p>Represents a grid cell. These are not necessarily thread-safe, although new |
| Cell("") (world cell) must be.</p> |
| <div class="lucene-block lucene-experimental">This is a Lucene.NET EXPERIMENTAL API, use at your own risk</div></section> |
| <h4><a class="xref" href="Lucene.Net.Spatial.Prefix.Tree.GeohashPrefixTree.html">GeohashPrefixTree</a></h4> |
| <section><p>A <a class="xref" href="Lucene.Net.Spatial.Prefix.Tree.SpatialPrefixTree.html">SpatialPrefixTree</a> based on |
| <a href="http://en.wikipedia.org/wiki/Geohash">Geohashes</a>. |
| Uses <span class="xref">Spatial4n.Core.Util.GeohashUtils</span> to do all the geohash work.</p> |
| <div class="lucene-block lucene-experimental">This is a Lucene.NET EXPERIMENTAL API, use at your own risk</div></section> |
| <h4><a class="xref" href="Lucene.Net.Spatial.Prefix.Tree.GeohashPrefixTree.Factory.html">GeohashPrefixTree.Factory</a></h4> |
| <section><p>Factory for creating <a class="xref" href="Lucene.Net.Spatial.Prefix.Tree.GeohashPrefixTree.html">GeohashPrefixTree</a> |
| instances with useful defaults</p> |
| </section> |
| <h4><a class="xref" href="Lucene.Net.Spatial.Prefix.Tree.QuadPrefixTree.html">QuadPrefixTree</a></h4> |
| <section><p>A <a class="xref" href="Lucene.Net.Spatial.Prefix.Tree.SpatialPrefixTree.html">SpatialPrefixTree</a> which uses a |
| <a href="http://en.wikipedia.org/wiki/Quadtree">quad tree</a> in which an |
| indexed term will be generated for each cell, 'A', 'B', 'C', 'D'.</p> |
| <div class="lucene-block lucene-experimental">This is a Lucene.NET EXPERIMENTAL API, use at your own risk</div></section> |
| <h4><a class="xref" href="Lucene.Net.Spatial.Prefix.Tree.QuadPrefixTree.Factory.html">QuadPrefixTree.Factory</a></h4> |
| <section><p>Factory for creating <a class="xref" href="Lucene.Net.Spatial.Prefix.Tree.QuadPrefixTree.html">QuadPrefixTree</a> instances with useful defaults</p> |
| </section> |
| <h4><a class="xref" href="Lucene.Net.Spatial.Prefix.Tree.SpatialPrefixTree.html">SpatialPrefixTree</a></h4> |
| <section><p>A spatial Prefix Tree, or Trie, which decomposes shapes into prefixed strings |
| at variable lengths corresponding to variable precision.</p> |
| </section> |
| <h4><a class="xref" href="Lucene.Net.Spatial.Prefix.Tree.SpatialPrefixTreeFactory.html">SpatialPrefixTreeFactory</a></h4> |
| <section><p>Abstract Factory for creating <a class="xref" href="Lucene.Net.Spatial.Prefix.Tree.SpatialPrefixTree.html">SpatialPrefixTree</a> instances with useful |
| defaults and passed on configurations defined in a <span class="xref">System.Collections.Generic.IDictionary<TKey, TValue></span>.</p> |
| <div class="lucene-block lucene-experimental">This is a Lucene.NET EXPERIMENTAL API, use at your own risk</div></section> |
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