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506 lines
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<li class="navelem"><a class="el" href="namespacegeos.html">geos</a></li><li class="navelem"><a class="el" href="namespacegeos_1_1index.html">index</a></li><li class="navelem"><a class="el" href="namespacegeos_1_1index_1_1strtree.html">strtree</a></li><li class="navelem"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html">BoundablePair</a></li> </ul>
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<div class="title">geos::index::strtree::BoundablePair Class Reference</div> </div>
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<p>A pair of <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundables</a>, whose leaf items support a distance metric between them.
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<a href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="BoundablePair_8h_source.html">BoundablePair.h</a>></code></p>
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Classes</h2></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structgeos_1_1index_1_1strtree_1_1BoundablePair_1_1BoundablePairQueueCompare.html">BoundablePairQueueCompare</a></td></tr>
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Public Types</h2></td></tr>
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<tr class="memitem:ab4ca9259ac441d339dc5a471680ece40"><td class="memItemLeft" align="right" valign="top">typedef std::priority_queue< <a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html">BoundablePair</a> *, std::vector< <a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html">BoundablePair</a> * >, <a class="el" href="structgeos_1_1index_1_1strtree_1_1BoundablePair_1_1BoundablePairQueueCompare.html">BoundablePairQueueCompare</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#ab4ca9259ac441d339dc5a471680ece40">BoundablePairQueue</a></td></tr>
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<tr class="separator:ab4ca9259ac441d339dc5a471680ece40"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:aa438ea457c0b566cc3df64cc33b6772c"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#aa438ea457c0b566cc3df64cc33b6772c">BoundablePair</a> (const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> *<a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#a861372acdfe602863f377264a0d22903">boundable1</a>, const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> *<a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#abab578252473fd9b9dcb6cccaa14f9fc">boundable2</a>, <a class="el" href="classgeos_1_1index_1_1strtree_1_1ItemDistance.html">ItemDistance</a> *<a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#acf530e14b2c0fac3507fec8412a5bd74">itemDistance</a>)</td></tr>
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<tr class="separator:aa438ea457c0b566cc3df64cc33b6772c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a432aa0d5c48581c5b207ba053b0e4a8c"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#a432aa0d5c48581c5b207ba053b0e4a8c">getBoundable</a> (int i) const </td></tr>
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<tr class="separator:a432aa0d5c48581c5b207ba053b0e4a8c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a1d3a2059c8942d0dd8966e0eef29d762"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#a1d3a2059c8942d0dd8966e0eef29d762">distance</a> () const </td></tr>
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<tr class="memdesc:a1d3a2059c8942d0dd8966e0eef29d762"><td class="mdescLeft"> </td><td class="mdescRight">Computes the distance between the <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a>s in this pair. The boundables are either composites or leaves. <a href="#a1d3a2059c8942d0dd8966e0eef29d762">More...</a><br /></td></tr>
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<tr class="separator:a1d3a2059c8942d0dd8966e0eef29d762"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ab5fdfd61162358bc12c0ec26aaa0c7a1"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#ab5fdfd61162358bc12c0ec26aaa0c7a1">getDistance</a> () const </td></tr>
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<tr class="memdesc:ab5fdfd61162358bc12c0ec26aaa0c7a1"><td class="mdescLeft"> </td><td class="mdescRight">Gets the minimum possible distance between the Boundables in this pair. <a href="#ab5fdfd61162358bc12c0ec26aaa0c7a1">More...</a><br /></td></tr>
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<tr class="memitem:a3c5283d805575ae73b2d80550d2ad391"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#a3c5283d805575ae73b2d80550d2ad391">isLeaves</a> () const </td></tr>
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<tr class="memitem:ac75c765ea727fc0020ad780a488c9560"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#ac75c765ea727fc0020ad780a488c9560">maximumDistance</a> ()</td></tr>
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<tr class="memdesc:ac75c765ea727fc0020ad780a488c9560"><td class="mdescLeft"> </td><td class="mdescRight">Computes the maximum distance between any two items in the pair of nodes. <a href="#ac75c765ea727fc0020ad780a488c9560">More...</a><br /></td></tr>
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<tr class="memitem:afa555277eb86c0964a9a6be7c6d73da1"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#afa555277eb86c0964a9a6be7c6d73da1">expandToQueue</a> (<a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#ab4ca9259ac441d339dc5a471680ece40">BoundablePairQueue</a> &, double minDistance)</td></tr>
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<tr class="separator:afa555277eb86c0964a9a6be7c6d73da1"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a63f287964bf766ac1353e66940213e4f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#a63f287964bf766ac1353e66940213e4f">expand</a> (const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> *bndComposite, const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> *bndOther, bool isFlipped, <a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#ab4ca9259ac441d339dc5a471680ece40">BoundablePairQueue</a> &priQ, double minDistance)</td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
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Static Public Member Functions</h2></td></tr>
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<tr class="memitem:a76330e34c84c28a2491114246dfa0ce2"><td class="memItemLeft" align="right" valign="top">static bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#a76330e34c84c28a2491114246dfa0ce2">isComposite</a> (const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> *item)</td></tr>
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<tr class="memitem:aa84f2942c0c8a4d85e16fa32b67047b4"><td class="memItemLeft" align="right" valign="top">static double </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#aa84f2942c0c8a4d85e16fa32b67047b4">area</a> (const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> *b)</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pri-attribs"></a>
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Private Attributes</h2></td></tr>
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<tr class="memitem:a861372acdfe602863f377264a0d22903"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#a861372acdfe602863f377264a0d22903">boundable1</a></td></tr>
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<tr class="memitem:abab578252473fd9b9dcb6cccaa14f9fc"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#abab578252473fd9b9dcb6cccaa14f9fc">boundable2</a></td></tr>
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<tr class="memitem:acf530e14b2c0fac3507fec8412a5bd74"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1index_1_1strtree_1_1ItemDistance.html">ItemDistance</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#acf530e14b2c0fac3507fec8412a5bd74">itemDistance</a></td></tr>
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<tr class="memitem:ae873fc115a7759b47abaaa8cc79fb521"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#ae873fc115a7759b47abaaa8cc79fb521">mDistance</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>A pair of <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundables</a>, whose leaf items support a distance metric between them. </p>
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<p>Used to compute the distance between the members, and to expand a member relative to the other in order to produce new branches of the Branch-and-Bound evaluation tree. Provides an ordering based on the distance between the members, which allows building a priority queue by minimum distance.</p>
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<dl class="section author"><dt>Author</dt><dd>Martin Davis </dd></dl>
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<p>Definition at line <a class="el" href="BoundablePair_8h_source.html#l00044">44</a> of file <a class="el" href="BoundablePair_8h_source.html">BoundablePair.h</a>.</p>
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</div><h2 class="groupheader">Member Typedef Documentation</h2>
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<td class="memname">typedef std::priority_queue<<a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html">BoundablePair</a>*, std::vector<<a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html">BoundablePair</a>*>, <a class="el" href="structgeos_1_1index_1_1strtree_1_1BoundablePair_1_1BoundablePairQueueCompare.html">BoundablePairQueueCompare</a>> <a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#ab4ca9259ac441d339dc5a471680ece40">geos::index::strtree::BoundablePair::BoundablePairQueue</a></td>
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<p>Definition at line <a class="el" href="BoundablePair_8h_source.html#l00060">60</a> of file <a class="el" href="BoundablePair_8h_source.html">BoundablePair.h</a>.</p>
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<h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">geos::index::strtree::BoundablePair::BoundablePair </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> * </td>
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<td class="paramname"><em>boundable1</em>, </td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> * </td>
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<td class="paramname"><em>boundable2</em>, </td>
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<td class="paramtype"><a class="el" href="classgeos_1_1index_1_1strtree_1_1ItemDistance.html">ItemDistance</a> * </td>
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<td class="paramname"><em>itemDistance</em> </td>
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<td>)</td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">static double geos::index::strtree::BoundablePair::area </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> * </td>
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<td class="memname">double geos::index::strtree::BoundablePair::distance </td>
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<td>(</td>
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<td> const</td>
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<p>Computes the distance between the <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a>s in this pair. The boundables are either composites or leaves. </p>
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<p>If either is composite, the distance is computed as the minimum distance between the bounds. If both are leaves, the distance is computed by <a class="el" href="classgeos_1_1index_1_1strtree_1_1ItemDistance.html#a0c7b20a6215eb6101e30faee2c5f5262" title="Computes the distance between two items. ">ItemDistance::distance(const ItemBoundable* item1, const ItemBoundable* item2)</a>.</p>
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<dl class="section return"><dt>Returns</dt><dd>the distance between the items </dd></dl>
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<td class="memname">void geos::index::strtree::BoundablePair::expand </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> * </td>
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<td class="paramname"><em>bndComposite</em>, </td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a> * </td>
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<td class="paramname"><em>bndOther</em>, </td>
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<td class="paramtype">bool </td>
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<td class="paramtype"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#ab4ca9259ac441d339dc5a471680ece40">BoundablePairQueue</a> & </td>
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<td class="paramname"><em>priQ</em>, </td>
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<td class="paramtype">double </td>
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<td class="memname">void geos::index::strtree::BoundablePair::expandToQueue </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="classgeos_1_1index_1_1strtree_1_1BoundablePair.html#ab4ca9259ac441d339dc5a471680ece40">BoundablePairQueue</a> & </td>
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<td class="paramtype">double </td>
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<td class="paramname"><em>minDistance</em> </td>
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<td class="memname">const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a>* geos::index::strtree::BoundablePair::getBoundable </td>
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<p>Gets one of the member <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a>s in the pair (indexed by [0, 1]).</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">i</td><td>the index of the member to return (0 or 1) </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>the chosen member </dd></dl>
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<td class="memname">double geos::index::strtree::BoundablePair::getDistance </td>
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<p>Gets the minimum possible distance between the Boundables in this pair. </p>
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<p>If the members are both items, this will be the exact distance between them. Otherwise, this distance will be a lower bound on the distances between the items in the members.</p>
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<dl class="section return"><dt>Returns</dt><dd>the exact or lower bound distance for this pair </dd></dl>
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<p>Referenced by <a class="el" href="BoundablePair_8h_source.html#l00054">geos::index::strtree::BoundablePair::BoundablePairQueueCompare::operator()()</a>.</p>
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Here is the caller graph for this function:</div>
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<div class="center"><iframe scrolling="no" frameborder="0" src="classgeos_1_1index_1_1strtree_1_1BoundablePair_ab5fdfd61162358bc12c0ec26aaa0c7a1_icgraph.svg" width="496" height="71"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe>
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<td class="memname">static bool geos::index::strtree::BoundablePair::isComposite </td>
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<td class="memname">bool geos::index::strtree::BoundablePair::isLeaves </td>
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<p>Tests if both elements of the pair are leaf nodes</p>
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<dl class="section return"><dt>Returns</dt><dd>true if both pair elements are leaf nodes </dd></dl>
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<td class="memname">double geos::index::strtree::BoundablePair::maximumDistance </td>
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<p>Computes the maximum distance between any two items in the pair of nodes. </p>
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<dl class="section return"><dt>Returns</dt><dd>the maximum distance between items in the pair </dd></dl>
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<h2 class="groupheader">Member Data Documentation</h2>
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<td class="memname">const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a>* geos::index::strtree::BoundablePair::boundable1</td>
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<p>Definition at line <a class="el" href="BoundablePair_8h_source.html#l00046">46</a> of file <a class="el" href="BoundablePair_8h_source.html">BoundablePair.h</a>.</p>
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<td class="memname">const <a class="el" href="classgeos_1_1index_1_1strtree_1_1Boundable.html">Boundable</a>* geos::index::strtree::BoundablePair::boundable2</td>
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<p>Definition at line <a class="el" href="BoundablePair_8h_source.html#l00047">47</a> of file <a class="el" href="BoundablePair_8h_source.html">BoundablePair.h</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1index_1_1strtree_1_1ItemDistance.html">ItemDistance</a>* geos::index::strtree::BoundablePair::itemDistance</td>
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<p>Definition at line <a class="el" href="BoundablePair_8h_source.html#l00048">48</a> of file <a class="el" href="BoundablePair_8h_source.html">BoundablePair.h</a>.</p>
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<td class="memname">double geos::index::strtree::BoundablePair::mDistance</td>
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<p>Definition at line <a class="el" href="BoundablePair_8h_source.html#l00049">49</a> of file <a class="el" href="BoundablePair_8h_source.html">BoundablePair.h</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
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<li><a class="el" href="BoundablePair_8h_source.html">BoundablePair.h</a></li>
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