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  <div class="navpath"><a class="el" href="namespaceopenvrml.html">openvrml</a>::<a class="el" href="structopenvrml_1_1color__rgba.html">color_rgba</a>
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<h1>openvrml::color_rgba Struct Reference</h1><!-- doxytag: class="openvrml::color_rgba" -->A POD-struct comprising a <a class="el" href="structopenvrml_1_1color.html" title="A POD-struct comprising a color.">color</a> with an alpha channel.  
<a href="#_details">More...</a>
<p>
<code>#include &lt;openvrml/basetypes.h&gt;</code>
<p>

<p>
<a href="structopenvrml_1_1color__rgba-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const float &amp;&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#f0826f38f30d5814962050faf7368d0a">operator[]</a> (std::size_t index) const   throw ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Index-based component access.  <a href="#f0826f38f30d5814962050faf7368d0a"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">float&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#0f2bfcd3b04aeea97ee60214d0d8c6b5">r</a> () const   throw ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Get the red component.  <a href="#0f2bfcd3b04aeea97ee60214d0d8c6b5"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">float&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#016a3f799b671cab83ee03fe4c72ac32">g</a> () const   throw ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Get the green component.  <a href="#016a3f799b671cab83ee03fe4c72ac32"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">float&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#9d18caf7ebcc0164b6fbb27b81ebb2d6">b</a> () const   throw ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Get the blue component.  <a href="#9d18caf7ebcc0164b6fbb27b81ebb2d6"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">float&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#01b0e94565a21b38a6922b0c0a8a2f08">a</a> () const   throw ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Get the alpha component.  <a href="#01b0e94565a21b38a6922b0c0a8a2f08"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#e5f72ee6d3a4dff1854e138602092a19">r</a> (float value)  throw ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Set the red component.  <a href="#e5f72ee6d3a4dff1854e138602092a19"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#93f9ed2a853641cd462fd3f65c7139e7">g</a> (float value)  throw ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Set the green component.  <a href="#93f9ed2a853641cd462fd3f65c7139e7"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#f95d328a1a5bcd784d74af045a526e40">b</a> (float value)  throw ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Set the blue component.  <a href="#f95d328a1a5bcd784d74af045a526e40"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#babf761ea9a4e5f41127a67b886d5909">a</a> (float value)  throw ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Set the alpha component.  <a href="#babf761ea9a4e5f41127a67b886d5909"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#07b7e0a834bcf1defdafefc1e40d24e7">hsv</a> (float(&amp;result)[4]) const   throw ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Get the <a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a> as hue, saturation, and value.  <a href="#07b7e0a834bcf1defdafefc1e40d24e7"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#25391974d9ffef068486847ec2114a7a">hsv</a> (float h, float s, float v, float a=1.0f)  throw ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Set the <a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a> from hue, saturation, and value.  <a href="#25391974d9ffef068486847ec2114a7a"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Public Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">float&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#fb6490cf688f76d508d44ef594559fae">rgba</a> [4]</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">RGB triplet plus alpha.  <a href="#fb6490cf688f76d508d44ef594559fae"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Related Functions</h2></td></tr>
<tr><td colspan="2">(Note that these are not member functions.) <br><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const <a class="el" href="structopenvrml_1_1color__rgba.html">openvrml::color_rgba</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#1fc4be7825d1b7affab5dc8aa1fa3a42">make_color_rgba</a> () throw()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Create a zero-initialized <code><a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a></code>.  <a href="#1fc4be7825d1b7affab5dc8aa1fa3a42"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const <a class="el" href="structopenvrml_1_1color__rgba.html">openvrml::color_rgba</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#c703785c6278c61d534950dc39114fe0">make_color_rgba</a> (const float(&amp;<a class="el" href="structopenvrml_1_1color__rgba.html#fb6490cf688f76d508d44ef594559fae">rgba</a>)[4]) throw()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Create a <code><a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a></code>.  <a href="#c703785c6278c61d534950dc39114fe0"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const <a class="el" href="structopenvrml_1_1color__rgba.html">openvrml::color_rgba</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#e0740cd4c57857d469eb7d6bc6e40f11">make_color_rgba</a> (const float r, const float g, const float b, const float a) throw()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Create a <code><a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a></code>.  <a href="#e0740cd4c57857d469eb7d6bc6e40f11"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#76aba19dfc0e4d2bb2015d3b69c6f289">operator==</a> (const <a class="el" href="structopenvrml_1_1color__rgba.html">color_rgba</a> &amp;lhs, const <a class="el" href="structopenvrml_1_1color__rgba.html">color_rgba</a> &amp;rhs) throw()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Compare for equality.  <a href="#76aba19dfc0e4d2bb2015d3b69c6f289"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#bf4b0af409ae896b4ec7f1c6292bfbac">operator!=</a> (const <a class="el" href="structopenvrml_1_1color__rgba.html">color_rgba</a> &amp;lhs, const <a class="el" href="structopenvrml_1_1color__rgba.html">color_rgba</a> &amp;rhs) throw()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Compare for inequality.  <a href="#bf4b0af409ae896b4ec7f1c6292bfbac"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">std::istream &amp;&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#277f166452713d744d3984f9c58dbbc7">operator&gt;&gt;</a> (std::istream &amp;in, <a class="el" href="structopenvrml_1_1color__rgba.html">color_rgba</a> &amp;c)</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Stream input.  <a href="#277f166452713d744d3984f9c58dbbc7"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">std::ostream &amp;&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="structopenvrml_1_1color__rgba.html#3987eaaec7fdac2a1947a09129301b0b">operator&lt;&lt;</a> (std::ostream &amp;out, const <a class="el" href="structopenvrml_1_1color__rgba.html">color_rgba</a> &amp;c)</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Stream output.  <a href="#3987eaaec7fdac2a1947a09129301b0b"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A POD-struct comprising a <a class="el" href="structopenvrml_1_1color.html" title="A POD-struct comprising a color.">color</a> with an alpha channel. 
<p>
VRML <code><a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a>s</code> are represented as four single-precision floating point components&mdash;red, green, blue, and alpha&mdash;ranging from 0.0 to 1.0. For the alpha channel, 1.0 is opaque. <hr><h2>Member Function Documentation</h2>
<a class="anchor" name="f0826f38f30d5814962050faf7368d0a"></a><!-- doxytag: member="openvrml::color_rgba::operator[]" ref="f0826f38f30d5814962050faf7368d0a" args="(std::size_t index) const " -->
<div class="memitem">
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          <td class="memname">const float &amp; openvrml::color_rgba::operator[]           </td>
          <td>(</td>
          <td class="paramtype">std::size_t&nbsp;</td>
          <td class="paramname"> <em>index</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td> const  throw ()<code> [inline]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Index-based component access. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>index</em>&nbsp;</td><td>0 is the red component, 1 is the green component, 2 is the blue component, and 3 is the alpha component.</td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>the component corresponding to <code>index</code>. </dd></dl>

</div>
</div><p>
<a class="anchor" name="0f2bfcd3b04aeea97ee60214d0d8c6b5"></a><!-- doxytag: member="openvrml::color_rgba::r" ref="0f2bfcd3b04aeea97ee60214d0d8c6b5" args="() const " -->
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          <td class="memname">float openvrml::color_rgba::r           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td> const  throw ()<code> [inline]</code></td>
        </tr>
      </table>
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<div class="memdoc">

<p>
Get the red component. 
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>the red component. </dd></dl>

</div>
</div><p>
<a class="anchor" name="016a3f799b671cab83ee03fe4c72ac32"></a><!-- doxytag: member="openvrml::color_rgba::g" ref="016a3f799b671cab83ee03fe4c72ac32" args="() const " -->
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          <td class="memname">float openvrml::color_rgba::g           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td> const  throw ()<code> [inline]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Get the green component. 
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>the green component. </dd></dl>

</div>
</div><p>
<a class="anchor" name="9d18caf7ebcc0164b6fbb27b81ebb2d6"></a><!-- doxytag: member="openvrml::color_rgba::b" ref="9d18caf7ebcc0164b6fbb27b81ebb2d6" args="() const " -->
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          <td class="memname">float openvrml::color_rgba::b           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td> const  throw ()<code> [inline]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Get the blue component. 
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>the blue component. </dd></dl>

</div>
</div><p>
<a class="anchor" name="01b0e94565a21b38a6922b0c0a8a2f08"></a><!-- doxytag: member="openvrml::color_rgba::a" ref="01b0e94565a21b38a6922b0c0a8a2f08" args="() const " -->
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          <td class="memname">float openvrml::color_rgba::a           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td> const  throw ()<code> [inline]</code></td>
        </tr>
      </table>
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<p>
Get the alpha component. 
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>the alpha component. </dd></dl>

</div>
</div><p>
<a class="anchor" name="e5f72ee6d3a4dff1854e138602092a19"></a><!-- doxytag: member="openvrml::color_rgba::r" ref="e5f72ee6d3a4dff1854e138602092a19" args="(float value)" -->
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          <td class="memname">void openvrml::color_rgba::r           </td>
          <td>(</td>
          <td class="paramtype">float&nbsp;</td>
          <td class="paramname"> <em>value</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td>  throw ()<code> [inline]</code></td>
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<p>
Set the red component. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>value</em>&nbsp;</td><td>the new component value. </td></tr>
  </table>
</dl>

</div>
</div><p>
<a class="anchor" name="93f9ed2a853641cd462fd3f65c7139e7"></a><!-- doxytag: member="openvrml::color_rgba::g" ref="93f9ed2a853641cd462fd3f65c7139e7" args="(float value)" -->
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          <td class="memname">void openvrml::color_rgba::g           </td>
          <td>(</td>
          <td class="paramtype">float&nbsp;</td>
          <td class="paramname"> <em>value</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td>  throw ()<code> [inline]</code></td>
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<p>
Set the green component. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>value</em>&nbsp;</td><td>the new component value. </td></tr>
  </table>
</dl>

</div>
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<a class="anchor" name="f95d328a1a5bcd784d74af045a526e40"></a><!-- doxytag: member="openvrml::color_rgba::b" ref="f95d328a1a5bcd784d74af045a526e40" args="(float value)" -->
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          <td class="memname">void openvrml::color_rgba::b           </td>
          <td>(</td>
          <td class="paramtype">float&nbsp;</td>
          <td class="paramname"> <em>value</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td>  throw ()<code> [inline]</code></td>
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<p>
Set the blue component. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>value</em>&nbsp;</td><td>the new component value. </td></tr>
  </table>
</dl>

</div>
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<a class="anchor" name="babf761ea9a4e5f41127a67b886d5909"></a><!-- doxytag: member="openvrml::color_rgba::a" ref="babf761ea9a4e5f41127a67b886d5909" args="(float value)" -->
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          <td class="memname">void openvrml::color_rgba::a           </td>
          <td>(</td>
          <td class="paramtype">float&nbsp;</td>
          <td class="paramname"> <em>value</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td>  throw ()<code> [inline]</code></td>
        </tr>
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<p>
Set the alpha component. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>value</em>&nbsp;</td><td>the new component value. </td></tr>
  </table>
</dl>

</div>
</div><p>
<a class="anchor" name="07b7e0a834bcf1defdafefc1e40d24e7"></a><!-- doxytag: member="openvrml::color_rgba::hsv" ref="07b7e0a834bcf1defdafefc1e40d24e7" args="(float(&amp;result)[4]) const " -->
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          <td class="memname">void openvrml::color_rgba::hsv           </td>
          <td>(</td>
          <td class="paramtype">float(&amp;)&nbsp;</td>
          <td class="paramname"> <em>result</em>[4]          </td>
          <td>&nbsp;)&nbsp;</td>
          <td> const  throw ()</td>
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<p>
Get the <a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a> as hue, saturation, and value. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"><tt>[out]</tt>&nbsp;</td><td valign="top"><em>result</em>&nbsp;</td><td>the hue, saturation, and value. </td></tr>
  </table>
</dl>

</div>
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<a class="anchor" name="25391974d9ffef068486847ec2114a7a"></a><!-- doxytag: member="openvrml::color_rgba::hsv" ref="25391974d9ffef068486847ec2114a7a" args="(float h, float s, float v, float a=1.0f)" -->
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          <td class="memname">void openvrml::color_rgba::hsv           </td>
          <td>(</td>
          <td class="paramtype">float&nbsp;</td>
          <td class="paramname"> <em>h</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">float&nbsp;</td>
          <td class="paramname"> <em>s</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">float&nbsp;</td>
          <td class="paramname"> <em>v</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">float&nbsp;</td>
          <td class="paramname"> <em>a</em> = <code>1.0f</code></td><td>&nbsp;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td><td>  throw ()</td>
        </tr>
      </table>
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<p>
Set the <a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a> from hue, saturation, and value. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>h</em>&nbsp;</td><td>hue. </td></tr>
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>s</em>&nbsp;</td><td>saturation. </td></tr>
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>v</em>&nbsp;</td><td>value. </td></tr>
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>a</em>&nbsp;</td><td>alpha. </td></tr>
  </table>
</dl>

</div>
</div><p>
<hr><h2>Friends And Related Function Documentation</h2>
<a class="anchor" name="1fc4be7825d1b7affab5dc8aa1fa3a42"></a><!-- doxytag: member="openvrml::color_rgba::make_color_rgba" ref="1fc4be7825d1b7affab5dc8aa1fa3a42" args="()" -->
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          <td class="memname">const <a class="el" href="structopenvrml_1_1color__rgba.html">openvrml::color_rgba</a> make_color_rgba           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td> throw()<code> [related]</code></td>
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<p>
Create a zero-initialized <code><a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a></code>. 
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>a zero-initialized <code><a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a></code>. </dd></dl>

</div>
</div><p>
<a class="anchor" name="c703785c6278c61d534950dc39114fe0"></a><!-- doxytag: member="openvrml::color_rgba::make_color_rgba" ref="c703785c6278c61d534950dc39114fe0" args="(const float(&amp;rgba)[4])" -->
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          <td class="memname">const <a class="el" href="structopenvrml_1_1color__rgba.html">openvrml::color_rgba</a> make_color_rgba           </td>
          <td>(</td>
          <td class="paramtype">const float(&amp;)&nbsp;</td>
          <td class="paramname"> <em>rgba</em>[4]          </td>
          <td>&nbsp;)&nbsp;</td>
          <td> throw()<code> [related]</code></td>
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<p>
Create a <code><a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a></code>. 
<p>
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>rgba</em>&nbsp;</td><td>an array comprising red, green, blue, and alpha components.</td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>a <code><a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a></code>. </dd></dl>

</div>
</div><p>
<a class="anchor" name="e0740cd4c57857d469eb7d6bc6e40f11"></a><!-- doxytag: member="openvrml::color_rgba::make_color_rgba" ref="e0740cd4c57857d469eb7d6bc6e40f11" args="(const float r, const float g, const float b, const float a)" -->
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          <td class="memname">const <a class="el" href="structopenvrml_1_1color__rgba.html">openvrml::color_rgba</a> make_color_rgba           </td>
          <td>(</td>
          <td class="paramtype">const float&nbsp;</td>
          <td class="paramname"> <em>r</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const float&nbsp;</td>
          <td class="paramname"> <em>g</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const float&nbsp;</td>
          <td class="paramname"> <em>b</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const float&nbsp;</td>
          <td class="paramname"> <em>a</em></td><td>&nbsp;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td><td> throw()<code> [related]</code></td>
        </tr>
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<p>
Create a <code><a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a></code>. 
<p>
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>r</em>&nbsp;</td><td>red component. </td></tr>
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>g</em>&nbsp;</td><td>green component. </td></tr>
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>b</em>&nbsp;</td><td>blue component. </td></tr>
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>a</em>&nbsp;</td><td>alpha component.</td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>a <code><a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a></code>. </dd></dl>

</div>
</div><p>
<a class="anchor" name="76aba19dfc0e4d2bb2015d3b69c6f289"></a><!-- doxytag: member="openvrml::color_rgba::operator==" ref="76aba19dfc0e4d2bb2015d3b69c6f289" args="(const color_rgba &amp;lhs, const color_rgba &amp;rhs)" -->
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          <td>(</td>
          <td class="paramtype">const <a class="el" href="structopenvrml_1_1color__rgba.html">color_rgba</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>lhs</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="structopenvrml_1_1color__rgba.html">color_rgba</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>rhs</em></td><td>&nbsp;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td><td> throw()<code> [related]</code></td>
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<p>
Compare for equality. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>lhs</em>&nbsp;</td><td>left-hand operand. </td></tr>
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>rhs</em>&nbsp;</td><td>right-hand operand.</td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd><code>true</code> if <code>lhs</code> and <code>rhs</code> have the same value; <code>false</code> otherwise. </dd></dl>

</div>
</div><p>
<a class="anchor" name="bf4b0af409ae896b4ec7f1c6292bfbac"></a><!-- doxytag: member="openvrml::color_rgba::operator!=" ref="bf4b0af409ae896b4ec7f1c6292bfbac" args="(const color_rgba &amp;lhs, const color_rgba &amp;rhs)" -->
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          <td>(</td>
          <td class="paramtype">const <a class="el" href="structopenvrml_1_1color__rgba.html">color_rgba</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>lhs</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="structopenvrml_1_1color__rgba.html">color_rgba</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>rhs</em></td><td>&nbsp;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td><td> throw()<code> [related]</code></td>
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<p>
Compare for inequality. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>lhs</em>&nbsp;</td><td>left-hand operand. </td></tr>
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>rhs</em>&nbsp;</td><td>right-hand operand.</td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd><code>true</code> if <code>lhs</code> and <code>rhs</code> dot not have the same value; <code>false</code> otherwise. </dd></dl>

</div>
</div><p>
<a class="anchor" name="277f166452713d744d3984f9c58dbbc7"></a><!-- doxytag: member="openvrml::color_rgba::operator&gt;&gt;" ref="277f166452713d744d3984f9c58dbbc7" args="(std::istream &amp;in, color_rgba &amp;c)" -->
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          <td class="memname">std::istream &amp; operator&gt;&gt;           </td>
          <td>(</td>
          <td class="paramtype">std::istream &amp;&nbsp;</td>
          <td class="paramname"> <em>in</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="structopenvrml_1_1color__rgba.html">color_rgba</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>c</em></td><td>&nbsp;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td><td><code> [related]</code></td>
        </tr>
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<p>
Stream input. 
<p>
Consistent with the VRML97 convention, commas (&ldquo;<code></code>,&rdquo;) in the input are treated as whitespace.<p>
If any of the <a class="el" href="structopenvrml_1_1color.html" title="A POD-struct comprising a color.">color</a> components is outside the the range [0.0, 1.0], the <code>failbit</code> will be set on <code>in</code> and <code>c</code> will be left in an arbitrary state.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"><tt>[in,out]</tt>&nbsp;</td><td valign="top"><em>in</em>&nbsp;</td><td>input stream. </td></tr>
    <tr><td valign="top"><tt>[out]</tt>&nbsp;</td><td valign="top"><em>c</em>&nbsp;</td><td>a <code><a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a></code>.</td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd><code>in</code>. </dd></dl>

</div>
</div><p>
<a class="anchor" name="3987eaaec7fdac2a1947a09129301b0b"></a><!-- doxytag: member="openvrml::color_rgba::operator&lt;&lt;" ref="3987eaaec7fdac2a1947a09129301b0b" args="(std::ostream &amp;out, const color_rgba &amp;c)" -->
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          <td class="memname">std::ostream &amp; operator&lt;&lt;           </td>
          <td>(</td>
          <td class="paramtype">std::ostream &amp;&nbsp;</td>
          <td class="paramname"> <em>out</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="structopenvrml_1_1color__rgba.html">color_rgba</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>c</em></td><td>&nbsp;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td><td><code> [related]</code></td>
        </tr>
      </table>
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<p>
Stream output. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"><tt>[in,out]</tt>&nbsp;</td><td valign="top"><em>out</em>&nbsp;</td><td>output stream. </td></tr>
    <tr><td valign="top"><tt>[in]</tt>&nbsp;</td><td valign="top"><em>c</em>&nbsp;</td><td>a <a class="el" href="structopenvrml_1_1color__rgba.html" title="A POD-struct comprising a color with an alpha channel.">color_rgba</a>.</td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd><code>out</code>. </dd></dl>

</div>
</div><p>
<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="fb6490cf688f76d508d44ef594559fae"></a><!-- doxytag: member="openvrml::color_rgba::rgba" ref="fb6490cf688f76d508d44ef594559fae" args="[4]" -->
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          <td class="memname">float <a class="el" href="structopenvrml_1_1color__rgba.html#fb6490cf688f76d508d44ef594559fae">openvrml::color_rgba::rgba</a>[4]          </td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
RGB triplet plus alpha. 
<p>

</div>
</div><p>
</div>
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