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<p>Implements a "hot pixel" as used in the Snap Rounding algorithm.
<a href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>&gt;</code></p>
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Public Member Functions</h2></td></tr>
<tr class="memitem:a6fc2562aa6adcd937eeadb14cd93d266"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#a6fc2562aa6adcd937eeadb14cd93d266">getWidth</a> () const </td></tr>
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Private Member Functions</h2></td></tr>
<tr class="memitem:afca956c10cb8e9bc81b5ad71905aedda"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#afca956c10cb8e9bc81b5ad71905aedda">scaleRound</a> (double val) const </td></tr>
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Private Attributes</h2></td></tr>
<tr class="memitem:a0068d626c7e0c942f824361e68761fbd"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#a0068d626c7e0c942f824361e68761fbd">originalPt</a></td></tr>
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<tr class="memitem:ad9aead6066037f845875a9dccfa006fc"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#ad9aead6066037f845875a9dccfa006fc">hpx</a></td></tr>
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<tr class="memitem:a01a823c05f20096051a84334c6108916"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#a01a823c05f20096051a84334c6108916">hpy</a></td></tr>
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Static Private Attributes</h2></td></tr>
<tr class="memitem:af781bbce409724104d4c9e0770414237"><td class="memItemLeft" align="right" valign="top">static constexpr double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#af781bbce409724104d4c9e0770414237">TOLERANCE</a> = 0.5</td></tr>
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<tr class="memitem:ae15b67f29ae5b4e5bb10fcefd1d3a71e"><td class="memItemLeft" align="right" valign="top">static constexpr int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#ae15b67f29ae5b4e5bb10fcefd1d3a71e">UPPER_RIGHT</a> = 0</td></tr>
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<tr class="memitem:a7fb4ce83ed5b8cc64195c52f2cd17ab9"><td class="memItemLeft" align="right" valign="top">static constexpr int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#a7fb4ce83ed5b8cc64195c52f2cd17ab9">UPPER_LEFT</a> = 1</td></tr>
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<tr class="memitem:ae8c72c24ad1c644518e3e47371da0321"><td class="memItemLeft" align="right" valign="top">static constexpr int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#ae8c72c24ad1c644518e3e47371da0321">LOWER_LEFT</a> = 2</td></tr>
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<tr class="memitem:ad95660ed8c755ebf9effbbd5b5800519"><td class="memItemLeft" align="right" valign="top">static constexpr int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#ad95660ed8c755ebf9effbbd5b5800519">LOWER_RIGHT</a> = 3</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Implements a "hot pixel" as used in the Snap Rounding algorithm. </p>
<p>A hot pixel contains the interior of the tolerance square and the boundary minus the top and right segments.</p>
<p>The hot pixel operations are all computed in the integer domain to avoid rounding problems. </p>
<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00063">63</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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<td>(</td>
<td class="paramtype">const <a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html">HotPixel</a> &amp;&#160;</td>
<td class="paramname"><em>other</em></td><td>)</td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &amp;&#160;</td>
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<p>Creates a new hot pixel.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pt</td><td>the coordinate at the centre of the pixel. Will be kept by reference, so make sure to keep it alive. </td></tr>
<tr><td class="paramname">scaleFactor</td><td>the scaleFactor determining the pixel size </td></tr>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>&amp; geos::noding::snapround::HotPixel::getCoordinate </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
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<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00104">104</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
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<p>Gets the width of the hot pixel in the original coordinate system. </p>
<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00102">102</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
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<td class="memname">bool geos::noding::snapround::HotPixel::intersects </td>
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<p>Tests whether the line segment (p0-p1) intersects this hot pixel.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p0</td><td>the first coordinate of the line segment to test </td></tr>
<tr><td class="paramname">p1</td><td>the second coordinate of the line segment to test </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true if the line segment intersects this hot pixel </dd></dl>
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<td class="memname">bool geos::noding::snapround::HotPixel::intersects </td>
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<p>Tests whether a coordinate lies in (intersects) this hot pixel.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">p</td><td>the coordinate to test </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true if the coordinate intersects this hot pixel </dd></dl>
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<td class="memname">bool geos::noding::snapround::HotPixel::intersectsPixelClosure </td>
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<td class="memname">bool geos::noding::snapround::HotPixel::intersectsScaled </td>
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<td class="paramtype">double&#160;</td>
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<td class="paramtype">double&#160;</td>
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<td class="paramtype">double&#160;</td>
<td class="paramname"><em>p1y</em>&#160;</td>
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<td>)</td>
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<td class="memname">bool geos::noding::snapround::HotPixel::isNode </td>
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<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00139">139</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
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<td class="memname">std::ostream&amp; geos::noding::snapround::HotPixel::operator&lt;&lt; </td>
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<td class="memname"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html">HotPixel</a>&amp; geos::noding::snapround::HotPixel::operator= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html">HotPixel</a> &amp;&#160;</td>
<td class="paramname"><em>rhs</em></td><td>)</td>
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<td class="memname">double geos::noding::snapround::HotPixel::scale </td>
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<td> const</td>
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<td class="memname">double geos::noding::snapround::HotPixel::scaleRound </td>
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<td class="paramtype">double&#160;</td>
<td class="paramname"><em>val</em></td><td>)</td>
<td> const</td>
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<td class="memname">void geos::noding::snapround::HotPixel::setToNode </td>
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<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00140">140</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
<p>References <a class="el" href="namespacegeos_1_1geom.html#a2031e0143940407ca589d3216cf0eb06">geos::geom::operator&lt;&lt;()</a>.</p>
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<h2 class="groupheader">Member Data Documentation</h2>
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<td class="memname">bool geos::noding::snapround::HotPixel::hpIsNode</td>
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<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00078">78</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
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<td class="memname">double geos::noding::snapround::HotPixel::hpx</td>
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<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00081">81</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
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<td class="memname">double geos::noding::snapround::HotPixel::hpy</td>
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<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00082">82</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
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<td class="memname">constexpr int geos::noding::snapround::HotPixel::LOWER_LEFT = 2</td>
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<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00071">71</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
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<td class="memname">constexpr int geos::noding::snapround::HotPixel::LOWER_RIGHT = 3</td>
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<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00072">72</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> geos::noding::snapround::HotPixel::originalPt</td>
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<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00074">74</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
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<td class="memname">double geos::noding::snapround::HotPixel::scaleFactor</td>
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<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00075">75</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
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<td class="memname">constexpr double geos::noding::snapround::HotPixel::TOLERANCE = 0.5</td>
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<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00067">67</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
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<td class="memname">constexpr int geos::noding::snapround::HotPixel::UPPER_LEFT = 1</td>
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<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00070">70</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
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<td class="memname">constexpr int geos::noding::snapround::HotPixel::UPPER_RIGHT = 0</td>
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<p>Definition at line <a class="el" href="HotPixel_8h_source.html#l00069">69</a> of file <a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
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