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libqwt-devel-6.0.1-2.i586.rpm

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<h1>QwtPointPolar Class Reference</h1>  </div>
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<!-- doxytag: class="QwtPointPolar" -->
<p>A point in polar coordinates.  
<a href="#_details">More...</a></p>

<p><code>#include &lt;<a class="el" href="qwt__point__polar_8h_source.html">qwt_point_polar.h</a>&gt;</code></p>

<p><a href="class_qwt_point_polar-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">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#afac65de2dca25b0b6a6c5fb917fff424">azimuth</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#a73d21f582ee5960011300598e17fab00">isNull</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#ad1f8c93359d28322b6e3eeb9758a66f2">isValid</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_point_polar.html">QwtPointPolar</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#a2544921fb33e7601444223572243ed6a">normalized</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#af85df99741e28fbe6bdee96df42fb448">operator!=</a> (const <a class="el" href="class_qwt_point_polar.html">QwtPointPolar</a> &amp;) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#af59f940ff7d63de71044a8bba6d749db">operator==</a> (const <a class="el" href="class_qwt_point_polar.html">QwtPointPolar</a> &amp;) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#ae5cd7e8ab0505672748f779c9668fe29">QwtPointPolar</a> (const <a class="el" href="class_qwt_point_polar.html">QwtPointPolar</a> &amp;)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#a269241ca9f94f641063fe896cdd77165">QwtPointPolar</a> (const QPointF &amp;)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#af1c77f9730d441937e52ff5beee04975">QwtPointPolar</a> (double azimuth, double radius)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#a365875acf86a9f052e12784b5f2f7d44">QwtPointPolar</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#ab629fcfb36f0f29df45b256c6bddf194">radius</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#ae509330927d54dbc7cf65fae42083fce">rAzimuth</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#a69cf76a959e4417038b4e2684d307847">rRadius</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#a32c6c64510fce3e087d332305b4aca9e">setAzimuth</a> (double)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#a8cd4f93356a8a8c07400c3ad9ff1b560">setPoint</a> (const QPointF &amp;)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#a31ae2f4d6fad44f51ad5e7444a7f21fe">setRadius</a> (double)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QPointF&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_point_polar.html#ab61dd4130840876c00d79c28ea534d06">toPoint</a> () const </td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A point in polar coordinates. </p>
<p>In polar coordinates a point is determined by an angle and a distance. See <a href="http://en.wikipedia.org/wiki/Polar_coordinate_system">http://en.wikipedia.org/wiki/Polar_coordinate_system</a> </p>
</div><hr/><h2>Constructor &amp; Destructor Documentation</h2>
<a class="anchor" id="a365875acf86a9f052e12784b5f2f7d44"></a><!-- doxytag: member="QwtPointPolar::QwtPointPolar" ref="a365875acf86a9f052e12784b5f2f7d44" args="()" -->
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          <td class="memname">QwtPointPolar::QwtPointPolar </td>
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<p>Constructs a null point, with a radius and azimuth set to 0.0. </p>
<dl class="see"><dt><b>See also:</b></dt><dd>QPointF::isNull </dd></dl>

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<a class="anchor" id="af1c77f9730d441937e52ff5beee04975"></a><!-- doxytag: member="QwtPointPolar::QwtPointPolar" ref="af1c77f9730d441937e52ff5beee04975" args="(double azimuth, double radius)" -->
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          <td class="memname">QwtPointPolar::QwtPointPolar </td>
          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>azimuth</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>radius</em>&#160;</td>
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          <td></td>
          <td>)</td>
          <td></td><td><code> [inline]</code></td>
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<p>Constructs a point with coordinates specified by radius and azimuth.</p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">azimuth</td><td>Azimuth </td></tr>
    <tr><td class="paramname">radius</td><td>Radius </td></tr>
  </table>
  </dd>
</dl>

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<a class="anchor" id="ae5cd7e8ab0505672748f779c9668fe29"></a><!-- doxytag: member="QwtPointPolar::QwtPointPolar" ref="ae5cd7e8ab0505672748f779c9668fe29" args="(const QwtPointPolar &amp;)" -->
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          <td class="memname">QwtPointPolar::QwtPointPolar </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="class_qwt_point_polar.html">QwtPointPolar</a> &amp;&#160;</td>
          <td class="paramname"><em>other</em></td><td>)</td>
          <td><code> [inline]</code></td>
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<p>Constructs a point using the values of the point specified. </p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">other</td><td>Other point </td></tr>
  </table>
  </dd>
</dl>

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<a class="anchor" id="a269241ca9f94f641063fe896cdd77165"></a><!-- doxytag: member="QwtPointPolar::QwtPointPolar" ref="a269241ca9f94f641063fe896cdd77165" args="(const QPointF &amp;)" -->
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          <td class="paramtype">const QPointF &amp;&#160;</td>
          <td class="paramname"><em>p</em></td><td>)</td>
          <td></td>
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<p>Convert and assign values from a point in Cartesian coordinates</p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">p</td><td>Point in Cartesian coordinates </td></tr>
  </table>
  </dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_point_polar.html#a8cd4f93356a8a8c07400c3ad9ff1b560">setPoint()</a>, <a class="el" href="class_qwt_point_polar.html#ab61dd4130840876c00d79c28ea534d06">toPoint()</a> </dd></dl>

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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="afac65de2dca25b0b6a6c5fb917fff424"></a><!-- doxytag: member="QwtPointPolar::azimuth" ref="afac65de2dca25b0b6a6c5fb917fff424" args="() const " -->
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          <td class="memname">double QwtPointPolar::azimuth </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const<code> [inline]</code></td>
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      </table>
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<p>Returns the azimuth. </p>

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<a class="anchor" id="a73d21f582ee5960011300598e17fab00"></a><!-- doxytag: member="QwtPointPolar::isNull" ref="a73d21f582ee5960011300598e17fab00" args="() const " -->
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          <td class="memname">bool QwtPointPolar::isNull </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const<code> [inline]</code></td>
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<div class="memdoc">

<p>Returns true if <a class="el" href="class_qwt_point_polar.html#ab629fcfb36f0f29df45b256c6bddf194" title="Returns the radius.">radius()</a> &gt;= 0.0. </p>

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<a class="anchor" id="ad1f8c93359d28322b6e3eeb9758a66f2"></a><!-- doxytag: member="QwtPointPolar::isValid" ref="ad1f8c93359d28322b6e3eeb9758a66f2" args="() const " -->
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          <td class="memname">bool QwtPointPolar::isValid </td>
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          <td> const<code> [inline]</code></td>
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<p>Returns true if <a class="el" href="class_qwt_point_polar.html#ab629fcfb36f0f29df45b256c6bddf194" title="Returns the radius.">radius()</a> &gt;= 0.0. </p>

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</div>
<a class="anchor" id="a2544921fb33e7601444223572243ed6a"></a><!-- doxytag: member="QwtPointPolar::normalized" ref="a2544921fb33e7601444223572243ed6a" args="() const " -->
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          <td class="memname"><a class="el" href="class_qwt_point_polar.html">QwtPointPolar</a> QwtPointPolar::normalized </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<p>Normalize radius and azimuth</p>
<p>When the radius is &lt; 0.0 it is set to 0.0. The azimuth is a value &gt;= 0.0 and &lt; 2 * M_PI. </p>

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<a class="anchor" id="af85df99741e28fbe6bdee96df42fb448"></a><!-- doxytag: member="QwtPointPolar::operator!=" ref="af85df99741e28fbe6bdee96df42fb448" args="(const QwtPointPolar &amp;) const " -->
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          <td>(</td>
          <td class="paramtype">const <a class="el" href="class_qwt_point_polar.html">QwtPointPolar</a> &amp;&#160;</td>
          <td class="paramname"><em>other</em></td><td>)</td>
          <td> const</td>
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<p>Returns true if point1 is not equal to point2; otherwise returns false.</p>
<p>Two points are equal to each other if radius and azimuth-coordinates are the same. Points are not equal, when the azimuth differs, but other.azimuth() == <a class="el" href="class_qwt_point_polar.html#afac65de2dca25b0b6a6c5fb917fff424" title="Returns the azimuth.">azimuth()</a> % (2 * PI).</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_point_polar.html#a2544921fb33e7601444223572243ed6a">normalized()</a> </dd></dl>

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<a class="anchor" id="af59f940ff7d63de71044a8bba6d749db"></a><!-- doxytag: member="QwtPointPolar::operator==" ref="af59f940ff7d63de71044a8bba6d749db" args="(const QwtPointPolar &amp;) const " -->
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          <td>(</td>
          <td class="paramtype">const <a class="el" href="class_qwt_point_polar.html">QwtPointPolar</a> &amp;&#160;</td>
          <td class="paramname"><em>other</em></td><td>)</td>
          <td> const</td>
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<p>Returns true if point1 is equal to point2; otherwise returns false.</p>
<p>Two points are equal to each other if radius and azimuth-coordinates are the same. Points are not equal, when the azimuth differs, but other.azimuth() == <a class="el" href="class_qwt_point_polar.html#afac65de2dca25b0b6a6c5fb917fff424" title="Returns the azimuth.">azimuth()</a> % (2 * PI).</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_point_polar.html#a2544921fb33e7601444223572243ed6a">normalized()</a> </dd></dl>

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<a class="anchor" id="ab629fcfb36f0f29df45b256c6bddf194"></a><!-- doxytag: member="QwtPointPolar::radius" ref="ab629fcfb36f0f29df45b256c6bddf194" args="() const " -->
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          <td class="memname">double QwtPointPolar::radius </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const<code> [inline]</code></td>
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<p>Returns the radius. </p>

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<a class="anchor" id="ae509330927d54dbc7cf65fae42083fce"></a><!-- doxytag: member="QwtPointPolar::rAzimuth" ref="ae509330927d54dbc7cf65fae42083fce" args="()" -->
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          <td class="memname">double &amp; QwtPointPolar::rAzimuth </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td><code> [inline]</code></td>
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<p>Returns the azimuth. </p>

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<a class="anchor" id="a69cf76a959e4417038b4e2684d307847"></a><!-- doxytag: member="QwtPointPolar::rRadius" ref="a69cf76a959e4417038b4e2684d307847" args="()" -->
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          <td><code> [inline]</code></td>
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<p>Returns the radius. </p>

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<a class="anchor" id="a32c6c64510fce3e087d332305b4aca9e"></a><!-- doxytag: member="QwtPointPolar::setAzimuth" ref="a32c6c64510fce3e087d332305b4aca9e" args="(double)" -->
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          <td class="memname">void QwtPointPolar::setAzimuth </td>
          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>azimuth</em></td><td>)</td>
          <td><code> [inline]</code></td>
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<p>Sets the atimuth to atimuth. </p>

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<a class="anchor" id="a8cd4f93356a8a8c07400c3ad9ff1b560"></a><!-- doxytag: member="QwtPointPolar::setPoint" ref="a8cd4f93356a8a8c07400c3ad9ff1b560" args="(const QPointF &amp;)" -->
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          <td class="memname">void QwtPointPolar::setPoint </td>
          <td>(</td>
          <td class="paramtype">const QPointF &amp;&#160;</td>
          <td class="paramname"><em>p</em></td><td>)</td>
          <td></td>
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<p>Convert and assign values from a point in Cartesian coordinates </p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">p</td><td>Point in Cartesian coordinates </td></tr>
  </table>
  </dd>
</dl>

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<a class="anchor" id="a31ae2f4d6fad44f51ad5e7444a7f21fe"></a><!-- doxytag: member="QwtPointPolar::setRadius" ref="a31ae2f4d6fad44f51ad5e7444a7f21fe" args="(double)" -->
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          <td class="memname">void QwtPointPolar::setRadius </td>
          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>radius</em></td><td>)</td>
          <td><code> [inline]</code></td>
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<p>Sets the radius to radius. </p>

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<a class="anchor" id="ab61dd4130840876c00d79c28ea534d06"></a><!-- doxytag: member="QwtPointPolar::toPoint" ref="ab61dd4130840876c00d79c28ea534d06" args="() const " -->
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          <td class="memname">QPointF QwtPointPolar::toPoint </td>
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          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<p>Convert and return values in Cartesian coordinates</p>
<dl class="note"><dt><b>Note:</b></dt><dd>Invalid or null points will be returned as QPointF(0.0, 0.0) </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_point_polar.html#ad1f8c93359d28322b6e3eeb9758a66f2" title="Returns true if radius() &gt;= 0.0.">isValid()</a>, <a class="el" href="class_qwt_point_polar.html#a73d21f582ee5960011300598e17fab00" title="Returns true if radius() &gt;= 0.0.">isNull()</a> </dd></dl>

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