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<title>GEOS: geos::noding::snapround::HotPixel Class Reference</title>
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<li><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html">geos::noding::snapround::HotPixel</a> </li>
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<h1>geos::noding::snapround::HotPixel Class Reference</h1> </div>
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<!-- doxytag: class="geos::noding::snapround::HotPixel" -->
<p>Implements a "hot pixel" as used in the Snap Rounding algorithm.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="HotPixel_8h_source.html">HotPixel.h</a>></code></p>
<p><a href="classgeos_1_1noding_1_1snapround_1_1HotPixel-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a8f866b1f7515702898072c02798d8b29"></a><!-- doxytag: member="geos::noding::snapround::HotPixel::HotPixel" ref="a8f866b1f7515702898072c02798d8b29" args="(const geom::Coordinate &pt, double scaleFact, algorithm::LineIntersector &li)" -->
</td><td class="memItemRight" valign="bottom"><b>HotPixel</b> (const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &pt, double scaleFact, <a class="el" href="classgeos_1_1algorithm_1_1LineIntersector.html">algorithm::LineIntersector</a> &li)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ad07c86000f662071ebc2ace9c43b318e"></a><!-- doxytag: member="geos::noding::snapround::HotPixel::getCoordinate" ref="ad07c86000f662071ebc2ace9c43b318e" args="() const " -->
const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#ad07c86000f662071ebc2ace9c43b318e">getCoordinate</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return reference to original Coordinate (the one provided at construction time). <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a688f0c6290183c4781f1cdf3eb2bc6af"></a><!-- doxytag: member="geos::noding::snapround::HotPixel::getSafeEnvelope" ref="a688f0c6290183c4781f1cdf3eb2bc6af" args="() const " -->
const <a class="el" href="classgeos_1_1geom_1_1Envelope.html">geom::Envelope</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#a688f0c6290183c4781f1cdf3eb2bc6af">getSafeEnvelope</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns a "safe" envelope that is guaranteed to contain the hot pixel. Keeps ownership of it. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aadc4af68cc54064145cb55585cebc0f3"></a><!-- doxytag: member="geos::noding::snapround::HotPixel::intersectsScaled" ref="aadc4af68cc54064145cb55585cebc0f3" args="(const geom::Coordinate &p0, const geom::Coordinate &p1) const " -->
bool </td><td class="memItemRight" valign="bottom"><b>intersectsScaled</b> (const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &p0, const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &p1) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6258371ef4eee2eac222ee9ca231502d"></a><!-- doxytag: member="geos::noding::snapround::HotPixel::intersects" ref="a6258371ef4eee2eac222ee9ca231502d" args="(const geom::Coordinate &p0, const geom::Coordinate &p1) const " -->
bool </td><td class="memItemRight" valign="bottom"><b>intersects</b> (const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &p0, const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &p1) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#aee22b4b237f419906d3ee365fef22e85">addSnappedNode</a> (<a class="el" href="classgeos_1_1noding_1_1NodedSegmentString.html">NodedSegmentString</a> &segStr, size_t segIndex)</td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<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 <b>minus</b> the top and right segments.</p>
<p>The hot pixel operations are all computed in the integer domain to avoid rounding problems. </p>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="aee22b4b237f419906d3ee365fef22e85"></a><!-- doxytag: member="geos::noding::snapround::HotPixel::addSnappedNode" ref="aee22b4b237f419906d3ee365fef22e85" args="(NodedSegmentString &segStr, size_t segIndex)" -->
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<td class="memname">bool geos::noding::snapround::HotPixel::addSnappedNode </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classgeos_1_1noding_1_1NodedSegmentString.html">NodedSegmentString</a> & </td>
<td class="paramname"> <em>segStr</em>, </td>
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<td class="paramtype">size_t </td>
<td class="paramname"> <em>segIndex</em></td><td> </td>
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<td>)</td>
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<p>Adds a new node (equal to the snap pt) to the specified segment if the segment passes through the hot pixel</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>segStr</em> </td><td></td></tr>
<tr><td valign="top"></td><td valign="top"><em>segIndex</em> </td><td></td></tr>
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</dd>
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<dl class="return"><dt><b>Returns:</b></dt><dd>true if a node was added to the segment </dd></dl>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="HotPixel_8h_source.html">HotPixel.h</a></li>
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