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<p>Represents two doubles as a mathematical 2D vector.
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Functions</h2></td></tr>
<tr class="memitem:a04c90748c3623044c79fa20788ffbcc6"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#a04c90748c3623044c79fa20788ffbcc6">QCPVector2D</a> ()</td></tr>
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<tr class="memitem:a47bd86cebc5588dad6ec84349d9098d4"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#a47bd86cebc5588dad6ec84349d9098d4">QCPVector2D</a> (double x, double y)</td></tr>
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<tr class="memitem:ad8f30a064dc37c90a7ba5e6732ceb5bb"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#ad8f30a064dc37c90a7ba5e6732ceb5bb">QCPVector2D</a> (const QPoint &point)</td></tr>
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<tr class="memitem:a3c16eba1006c210ffc3299253fef2339"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#a3c16eba1006c210ffc3299253fef2339">QCPVector2D</a> (const QPointF &point)</td></tr>
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double </td><td class="memItemRight" valign="bottom"><b>x</b> () const</td></tr>
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double </td><td class="memItemRight" valign="bottom"><b>y</b> () const</td></tr>
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double & </td><td class="memItemRight" valign="bottom"><b>rx</b> ()</td></tr>
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double & </td><td class="memItemRight" valign="bottom"><b>ry</b> ()</td></tr>
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<tr class="memitem:ab4249e6ce7bfc37be56f014c54b761ae"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#ab4249e6ce7bfc37be56f014c54b761ae">setX</a> (double x)</td></tr>
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<tr class="memitem:ada288019aa8cd51e3b30acfc07b461dc"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#ada288019aa8cd51e3b30acfc07b461dc">setY</a> (double y)</td></tr>
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<tr class="memitem:a10adb5ab031fe94f0b64a3c5aefb552e"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#a10adb5ab031fe94f0b64a3c5aefb552e">length</a> () const</td></tr>
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<tr class="memitem:a766585459d84cb149334fda1a498b2e5"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#a766585459d84cb149334fda1a498b2e5">lengthSquared</a> () const</td></tr>
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<tr class="memitem:add3edf75de9b7bf1abc693b973b2e906"><td class="memItemLeft" align="right" valign="top">QPoint </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#add3edf75de9b7bf1abc693b973b2e906">toPoint</a> () const</td></tr>
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<tr class="memitem:acd7af3f4a62833ada58be3f3021dbbac"><td class="memItemLeft" align="right" valign="top">QPointF </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#acd7af3f4a62833ada58be3f3021dbbac">toPointF</a> () const</td></tr>
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<tr class="memitem:ace99f200b347b14864808213eef16593"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#ace99f200b347b14864808213eef16593">isNull</a> () const</td></tr>
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<tr class="memitem:ad83268be370685c2a0630acc0fb1a425"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#ad83268be370685c2a0630acc0fb1a425">normalize</a> ()</td></tr>
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<tr class="memitem:a707bb3af3b1f9331a2450ec75eaf7eb0"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classQCPVector2D.html">QCPVector2D</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#a707bb3af3b1f9331a2450ec75eaf7eb0">normalized</a> () const</td></tr>
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<tr class="memitem:a0e08d09f9027784237e302e32290b001"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classQCPVector2D.html">QCPVector2D</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#a0e08d09f9027784237e302e32290b001">perpendicular</a> () const</td></tr>
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<tr class="memitem:a39f8d28db7dbffcca6aa63a1f1f6e176"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#a39f8d28db7dbffcca6aa63a1f1f6e176">dot</a> (const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &vec) const</td></tr>
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<tr class="memitem:a14840cd3da80cfee4eb3f8977cab89ab"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#a14840cd3da80cfee4eb3f8977cab89ab">distanceSquaredToLine</a> (const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &start, const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &end) const</td></tr>
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<tr class="memitem:a0c44ca97d46ee04feec32c1c57e70831"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#a0c44ca97d46ee04feec32c1c57e70831">distanceSquaredToLine</a> (const QLineF &line) const</td></tr>
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<tr class="memitem:ae240b845c3744e43a5d0aa7b2bb66c19"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#ae240b845c3744e43a5d0aa7b2bb66c19">distanceToStraightLine</a> (const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &base, const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &direction) const</td></tr>
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<tr class="memitem:aa52a246d168f475a4231c7bdfdac7df1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classQCPVector2D.html">QCPVector2D</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#aa52a246d168f475a4231c7bdfdac7df1">operator*=</a> (double factor)</td></tr>
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<tr class="memitem:aefa55eb9282c066a330ca281881e0ec0"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classQCPVector2D.html">QCPVector2D</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#aefa55eb9282c066a330ca281881e0ec0">operator/=</a> (double divisor)</td></tr>
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<tr class="memitem:aa2c34754ce8839b2d074dec741783c5e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classQCPVector2D.html">QCPVector2D</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#aa2c34754ce8839b2d074dec741783c5e">operator+=</a> (const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &vector)</td></tr>
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Friends</h2></td></tr>
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const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> </td><td class="memItemRight" valign="bottom"><b>operator*</b> (double factor, const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &vec)</td></tr>
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const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> </td><td class="memItemRight" valign="bottom"><b>operator*</b> (const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &vec, double factor)</td></tr>
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const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> </td><td class="memItemRight" valign="bottom"><b>operator/</b> (const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &vec, double divisor)</td></tr>
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const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> </td><td class="memItemRight" valign="bottom"><b>operator+</b> (const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &vec1, const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &vec2)</td></tr>
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const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> </td><td class="memItemRight" valign="bottom"><b>operator-</b> (const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &vec1, const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &vec2)</td></tr>
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const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> </td><td class="memItemRight" valign="bottom"><b>operator-</b> (const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &vec)</td></tr>
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Related Non-Members</h2></td></tr>
<tr><td class="ititle" colspan="2"><p>(Note that these are not member functions.) </p>
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<tr class="memitem:a6c757af9671d925af4a36c2f58fb7234"><td class="memItemLeft" align="right" valign="top">QDebug </td><td class="memItemRight" valign="bottom"><a class="el" href="classQCPVector2D.html#a6c757af9671d925af4a36c2f58fb7234">operator<<</a> (QDebug d, const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> &vec)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Represents two doubles as a mathematical 2D vector. </p>
<p>This class acts as a replacement for QVector2D with the advantage of double precision instead of single, and some convenience methods tailored for the <a class="el" href="classQCustomPlot.html" title="The central class of the library. This is the QWidget which displays the plot and interacts with the ...">QCustomPlot</a> library. </p>
</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<p>Creates a <a class="el" href="classQCPVector2D.html" title="Represents two doubles as a mathematical 2D vector. ">QCPVector2D</a> object and initializes the x and y coordinates to 0. </p>
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<p>Creates a <a class="el" href="classQCPVector2D.html" title="Represents two doubles as a mathematical 2D vector. ">QCPVector2D</a> object and initializes the <em>x</em> and <em>y</em> coordinates with the specified values. </p>
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<p>Creates a <a class="el" href="classQCPVector2D.html" title="Represents two doubles as a mathematical 2D vector. ">QCPVector2D</a> object and initializes the x and y coordinates respective coordinates of the specified <em>point</em>. </p>
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<p>Creates a <a class="el" href="classQCPVector2D.html" title="Represents two doubles as a mathematical 2D vector. ">QCPVector2D</a> object and initializes the x and y coordinates respective coordinates of the specified <em>point</em>. </p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#ab4249e6ce7bfc37be56f014c54b761ae">§ </a></span>setX()</h2>
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<td class="memname">void QCPVector2D::setX </td>
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<p>Sets the x coordinate of this vector to <em>x</em>.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classQCPVector2D.html#ada288019aa8cd51e3b30acfc07b461dc">setY</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ada288019aa8cd51e3b30acfc07b461dc">§ </a></span>setY()</h2>
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<p>Sets the y coordinate of this vector to <em>y</em>.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classQCPVector2D.html#ab4249e6ce7bfc37be56f014c54b761ae">setX</a> </dd></dl>
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<p>Returns the length of this vector.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classQCPVector2D.html#a766585459d84cb149334fda1a498b2e5">lengthSquared</a> </dd></dl>
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<p>Returns the squared length of this vector. In some situations, e.g. when just trying to find the shortest vector of a group, this is faster than calculating <a class="el" href="classQCPVector2D.html#a10adb5ab031fe94f0b64a3c5aefb552e">length</a>, because it avoids calculation of a square root.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classQCPVector2D.html#a10adb5ab031fe94f0b64a3c5aefb552e">length</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#add3edf75de9b7bf1abc693b973b2e906">§ </a></span>toPoint()</h2>
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<p>Returns a QPoint which has the x and y coordinates of this vector, truncating any floating point information.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classQCPVector2D.html#acd7af3f4a62833ada58be3f3021dbbac">toPointF</a> </dd></dl>
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<p>Returns a QPointF which has the x and y coordinates of this vector.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classQCPVector2D.html#add3edf75de9b7bf1abc693b973b2e906">toPoint</a> </dd></dl>
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<p>Returns whether this vector is null. A vector is null if <code>qIsNull</code> returns true for both x and y coordinates, i.e. if both are binary equal to 0. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ad83268be370685c2a0630acc0fb1a425">§ </a></span>normalize()</h2>
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<p>Normalizes this vector. After this operation, the length of the vector is equal to 1.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classQCPVector2D.html#a707bb3af3b1f9331a2450ec75eaf7eb0">normalized</a>, <a class="el" href="classQCPVector2D.html#a10adb5ab031fe94f0b64a3c5aefb552e">length</a>, <a class="el" href="classQCPVector2D.html#a766585459d84cb149334fda1a498b2e5">lengthSquared</a> </dd></dl>
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<p>Returns a normalized version of this vector. The length of the returned vector is equal to 1.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classQCPVector2D.html#ad83268be370685c2a0630acc0fb1a425">normalize</a>, <a class="el" href="classQCPVector2D.html#a10adb5ab031fe94f0b64a3c5aefb552e">length</a>, <a class="el" href="classQCPVector2D.html#a766585459d84cb149334fda1a498b2e5">lengthSquared</a> </dd></dl>
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<p>Returns a vector perpendicular to this vector, with the same length. </p>
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<td class="memname">double QCPVector2D::dot </td>
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<p>Returns the dot/scalar product of this vector with the specified vector <em>vec</em>. </p>
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<p>This is an overloaded function.</p>
<p>Returns the squared shortest distance of this vector (interpreted as a point) to the finite line segment given by <em>start</em> and <em>end</em>.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classQCPVector2D.html#ae240b845c3744e43a5d0aa7b2bb66c19">distanceToStraightLine</a> </dd></dl>
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<p>This is an overloaded function.</p>
<p>Returns the squared shortest distance of this vector (interpreted as a point) to the finite line segment given by <em>line</em>.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classQCPVector2D.html#ae240b845c3744e43a5d0aa7b2bb66c19">distanceToStraightLine</a> </dd></dl>
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<p>Returns the shortest distance of this vector (interpreted as a point) to the infinite straight line given by a <em>base</em> point and a <em>direction</em> vector.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classQCPVector2D.html#a14840cd3da80cfee4eb3f8977cab89ab">distanceSquaredToLine</a> </dd></dl>
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<p>Scales this vector by the given <em>factor</em>, i.e. the x and y components are multiplied by <em>factor</em>. </p>
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<p>Scales this vector by the given <em>divisor</em>, i.e. the x and y components are divided by <em>divisor</em>. </p>
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<p>Adds the given <em>vector</em> to this vector component-wise. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a3a2e906bb924983bb801e89f28a3d566">§ </a></span>operator-=()</h2>
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<td class="memname"><a class="el" href="classQCPVector2D.html">QCPVector2D</a> & QCPVector2D::operator-= </td>
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<p>subtracts the given <em>vector</em> from this vector component-wise. </p>
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<h2 class="groupheader">Friends And Related Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a6c757af9671d925af4a36c2f58fb7234">§ </a></span>operator<<()</h2>
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<td class="memname">QDebug operator<< </td>
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<td class="paramtype">const <a class="el" href="classQCPVector2D.html">QCPVector2D</a> & </td>
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<td>)</td>
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<p>Prints <em>vec</em> in a human readable format to the qDebug output. </p>
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<hr/>The documentation for this class was generated from the following files:<ul>
<li>src/vector2d.h</li>
<li>src/vector2d.cpp</li>
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