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<title>Mercator: Mercator::QuadInterp Class Reference</title>
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<div class="navpath"><b>Mercator</b>::<a class="el" href="classMercator_1_1QuadInterp.html">QuadInterp</a>
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<h1>Mercator::QuadInterp Class Reference</h1><!-- doxytag: class="Mercator::QuadInterp" -->Helper to interpolate in a quad.
<a href="#_details">More...</a>
<p>
<p>
<a href="classMercator_1_1QuadInterp-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"><a class="anchor" name="6fa06dda017ab688ea99aaab7a0eebb5"></a><!-- doxytag: member="Mercator::QuadInterp::calc" ref="6fa06dda017ab688ea99aaab7a0eebb5" args="(int locX, int locY)" -->
float </td><td class="memItemRight" valign="bottom"><a class="el" href="classMercator_1_1QuadInterp.html#6fa06dda017ab688ea99aaab7a0eebb5">calc</a> (int locX, int locY)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Determine the interpolated value within the quad. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classMercator_1_1QuadInterp.html#1fac44480e7c96b2c804db8030e184c4">QuadInterp</a> (int size, float e1, float e2, float e3, float e4)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor. <a href="#1fac44480e7c96b2c804db8030e184c4"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Public Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="f6cd873494ee0c09cf80e3a4878d03ee"></a><!-- doxytag: member="Mercator::QuadInterp::ep1" ref="f6cd873494ee0c09cf80e3a4878d03ee" args="" -->
float </td><td class="memItemRight" valign="bottom"><a class="el" href="classMercator_1_1QuadInterp.html#f6cd873494ee0c09cf80e3a4878d03ee">ep1</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Values at the four corners. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a0b46510d50bbe6a7a4fba932aa8f4b1"></a><!-- doxytag: member="Mercator::QuadInterp::ep2" ref="a0b46510d50bbe6a7a4fba932aa8f4b1" args="" -->
float </td><td class="memItemRight" valign="bottom"><b>ep2</b></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="1400d0f05763b26a78ceaba24c6e2e8a"></a><!-- doxytag: member="Mercator::QuadInterp::ep3" ref="1400d0f05763b26a78ceaba24c6e2e8a" args="" -->
float </td><td class="memItemRight" valign="bottom"><b>ep3</b></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a25618ff755e2ec110b6adda2c65b7d6"></a><!-- doxytag: member="Mercator::QuadInterp::ep4" ref="a25618ff755e2ec110b6adda2c65b7d6" args="" -->
float </td><td class="memItemRight" valign="bottom"><b>ep4</b></td></tr>
<tr><td colspan="2"><br><h2>Private Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="3ec4011fa05d3a7ee95c52a95811ba6d"></a><!-- doxytag: member="Mercator::QuadInterp::m_size" ref="3ec4011fa05d3a7ee95c52a95811ba6d" args="" -->
int </td><td class="memItemRight" valign="bottom"><a class="el" href="classMercator_1_1QuadInterp.html#3ec4011fa05d3a7ee95c52a95811ba6d">m_size</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">The length of one side of the square quad. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="b4ee1a5c663d5f0d9e5c6b6949786606"></a><!-- doxytag: member="Mercator::QuadInterp::noCalc" ref="b4ee1a5c663d5f0d9e5c6b6949786606" args="" -->
bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classMercator_1_1QuadInterp.html#b4ee1a5c663d5f0d9e5c6b6949786606">noCalc</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Flag indicating that all points have the same value. <br></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
Helper to interpolate in a quad.
<p>
The quad specified is assumed to be square of integer size, and the position specified for interpolation is specified in integer form. A check is included to avoid calculation if the value of each corner is the same. <hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="1fac44480e7c96b2c804db8030e184c4"></a><!-- doxytag: member="Mercator::QuadInterp::QuadInterp" ref="1fac44480e7c96b2c804db8030e184c4" args="(int size, float e1, float e2, float e3, float e4)" -->
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<td class="memname">Mercator::QuadInterp::QuadInterp </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>size</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float </td>
<td class="paramname"> <em>e1</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float </td>
<td class="paramname"> <em>e2</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">float </td>
<td class="paramname"> <em>e3</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">float </td>
<td class="paramname"> <em>e4</em></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td><code> [inline]</code></td>
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<p>
Constructor.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>size</em> </td><td>length of one side of the square quad. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>e1</em> </td><td>value at one corner of the square quad. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>e2</em> </td><td>value at one corner of the square quad. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>e3</em> </td><td>value at one corner of the square quad. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>e4</em> </td><td>value at one corner of the square quad. </td></tr>
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</dl>
<p>References <a class="el" href="Segment_8cpp_source.html#l00074">ep1</a>, and <a class="el" href="Segment_8cpp_source.html#l00071">noCalc</a>.</p>
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<hr>The documentation for this class was generated from the following file:<ul>
<li>Segment.cpp</ul>
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