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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Ipelib: IpeAngle Class Reference</title>
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<h1>IpeAngle Class Reference<br>
<small>
[<a class="el" href="group__geo.html">Ipe Geometry</a>]</small>
</h1><!-- doxytag: class="IpeAngle" -->A double that's an angle.
<a href="#_details">More...</a>
<p>
<a href="class_ipe_angle-members.html">List of all members.</a><h2>Public Member Functions</h2>
<ul>
<li><a class="el" href="class_ipe_angle.html#a0">IpeAngle</a> ()
<li><a class="el" href="class_ipe_angle.html#a1">IpeAngle</a> (double alpha)
<li><a class="el" href="class_ipe_angle.html#a2">operator double</a> () const
<li><a class="anchor" name="a3"></a><!-- doxytag: member="IpeAngle::Degrees" ref="a3" args="() const " -->
double <b>Degrees</b> () const
<li><a class="el" href="class_ipe_angle.html">IpeAngle</a> <a class="el" href="class_ipe_angle.html#a4">Normalize</a> (double lowlimit)
<li>bool <a class="el" href="class_ipe_angle.html#a5">LiesBetween</a> (<a class="el" href="class_ipe_angle.html">IpeAngle</a> small, <a class="el" href="class_ipe_angle.html">IpeAngle</a> large) const
</ul>
<h2>Static Public Member Functions</h2>
<ul>
<li>static <a class="el" href="class_ipe_angle.html">IpeAngle</a> <a class="el" href="class_ipe_angle.html#e0">Degrees</a> (double alpha)
</ul>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A double that's an angle.
<p>
An IpeAngle is really nothing more than a double. Having a separate type is sometimes useful, for instance in the <a class="el" href="class_ipe_vector.html">IpeVector</a> constructor, and this class serves as the right place for a few utility functions. It also makes it clear whether a value is in radians or in degrees.
<p>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="a0"></a><!-- doxytag: member="IpeAngle::IpeAngle" ref="a0" args="()" --><p>
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<td class="md" nowrap valign="top">IpeAngle::IpeAngle </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline, explicit]</code></td>
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</td>
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<td>
<p>
Construct uninitialized angle.
<p>
</td>
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<a class="anchor" name="a1"></a><!-- doxytag: member="IpeAngle::IpeAngle" ref="a1" args="(double alpha)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
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<td class="md" nowrap valign="top">IpeAngle::IpeAngle </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname1" valign="top" nowrap> <em>alpha</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
</tr>
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</td>
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<table cellspacing="5" cellpadding="0" border="0">
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<td>
</td>
<td>
<p>
Construct an angle (in radians).
<p>
</td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="e0"></a><!-- doxytag: member="IpeAngle::Degrees" ref="e0" args="(double alpha)" --><p>
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<td class="md" nowrap valign="top">static <a class="el" href="class_ipe_angle.html">IpeAngle</a> IpeAngle::Degrees </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname1" valign="top" nowrap> <em>alpha</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline, static]</code></td>
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</td>
</tr>
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<table cellspacing="5" cellpadding="0" border="0">
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<td>
</td>
<td>
<p>
Construct an angle in degrees.
<p>
</td>
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<a class="anchor" name="a2"></a><!-- doxytag: member="IpeAngle::operator double" ref="a2" args="() const " --><p>
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<td class="md" nowrap valign="top">IpeAngle::operator double </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const<code> [inline]</code></td>
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</td>
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<td>
<p>
Return value (in radians).
<p>
</td>
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<a class="anchor" name="a4"></a><!-- doxytag: member="IpeAngle::Normalize" ref="a4" args="(double lowlimit)" --><p>
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<td class="md" nowrap valign="top"><a class="el" href="class_ipe_angle.html">IpeAngle</a> IpeAngle::Normalize </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname1" valign="top" nowrap> <em>lowlimit</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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</td>
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<td>
</td>
<td>
<p>
Normalize the value to the range lowlimit .. lowlimit + 2 pi.
<p>
This IpeAngle object is modified, a copy is returned. </td>
</tr>
</table>
<a class="anchor" name="a5"></a><!-- doxytag: member="IpeAngle::LiesBetween" ref="a5" args="(IpeAngle small, IpeAngle large) const " --><p>
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<td class="md" nowrap valign="top">bool IpeAngle::LiesBetween </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="class_ipe_angle.html">IpeAngle</a> </td>
<td class="mdname" nowrap> <em>small</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td class="md"></td>
<td class="md" nowrap><a class="el" href="class_ipe_angle.html">IpeAngle</a> </td>
<td class="mdname" nowrap> <em>large</em></td>
</tr>
<tr>
<td class="md"></td>
<td class="md">) </td>
<td class="md" colspan="2"> const</td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
</td>
<td>
<p>
When considering the positively oriented circle arc from angle <em>small</em> to <em>large</em>, does it cover this angle? </td>
</tr>
</table>
<hr>The documentation for this class was generated from the following files:<ul>
<li>ipegeo.h<li>ipegeo.cpp</ul>
<hr>
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