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A portable, open-source, coherent noise-generating library for C++
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<div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="modules.html">Modules</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Class Members</a></div>
<h1>noise::module::Clamp Class Reference<br>
<small>
[<a class="el" href="group__modifiermodules.html">Modifier Modules</a>]</small>
</h1><code>#include <<a class="el" href="clamp_8h-source.html">clamp.h</a>></code>
<p>
<p>Inheritance diagram for noise::module::Clamp:
<p><center><img src="classnoise_1_1module_1_1Clamp.png" usemap="#noise::module::Clamp_map" border="0" alt=""></center>
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<a href="classnoise_1_1module_1_1Clamp-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
Noise module that clamps the output value from a source module to a range of values.
<p>
<div align="center">
<img src="moduleclamp.png" alt="moduleclamp.png">
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<p>
The range of values in which to clamp the output value is called the <em>clamping range</em>.<p>
If the output value from the source module is less than the lower bound of the clamping range, this noise module clamps that value to the lower bound. If the output value from the source module is greater than the upper bound of the clamping range, this noise module clamps that value to the upper bound.<p>
To specify the upper and lower bounds of the clamping range, call the <a class="el" href="classnoise_1_1module_1_1Clamp.html#a5">SetBounds()</a> method.<p>
This noise module requires one source module.
<p>
<table border="0" cellpadding="0" cellspacing="0">
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<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classnoise_1_1module_1_1Clamp.html#a0">Clamp</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor. <a href="#a0"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classnoise_1_1module_1_1Clamp.html#a1">GetLowerBound</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the lower bound of the clamping range. <a href="#a1"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classnoise_1_1module_1_1Clamp.html#a2">GetSourceModuleCount</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the number of source modules required by this noise module. <a href="#a2"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classnoise_1_1module_1_1Clamp.html#a3">GetUpperBound</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the upper bound of the clamping range. <a href="#a3"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual double </td><td class="memItemRight" valign="bottom"><a class="el" href="classnoise_1_1module_1_1Clamp.html#a4">GetValue</a> (double x, double y, double z) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Generates an output value given the coordinates of the specified input value. <a href="#a4"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classnoise_1_1module_1_1Clamp.html#a5">SetBounds</a> (double lowerBound, double upperBound)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the lower and upper bounds of the clamping range. <a href="#a5"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Protected Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="p0" doxytag="noise::module::Clamp::m_lowerBound"></a>
double </td><td class="memItemRight" valign="bottom"><a class="el" href="classnoise_1_1module_1_1Clamp.html#p0">m_lowerBound</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Lower bound of the clamping range. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="p1" doxytag="noise::module::Clamp::m_upperBound"></a>
double </td><td class="memItemRight" valign="bottom"><a class="el" href="classnoise_1_1module_1_1Clamp.html#p1">m_upperBound</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Upper bound of the clamping range. <br></td></tr>
</table>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="a0" doxytag="noise::module::Clamp::Clamp"></a><p>
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<td class="md" nowrap valign="top">Clamp::Clamp </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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<p>
Constructor.
<p>
The default lower bound of the clamping range is set to <a class="el" href="group__modifiermodules.html#ga0">noise::module::DEFAULT_CLAMP_LOWER_BOUND</a>.<p>
The default upper bound of the clamping range is set to <a class="el" href="group__modifiermodules.html#ga1">noise::module::DEFAULT_CLAMP_UPPER_BOUND</a>. </td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="a1" doxytag="noise::module::Clamp::GetLowerBound"></a><p>
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<td class="md" nowrap valign="top">double noise::module::Clamp::GetLowerBound </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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<p>
Returns the lower bound of the clamping range.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>The lower bound.</dd></dl>
If the output value from the source module is less than the lower bound of the clamping range, this noise module clamps that value to the lower bound. </td>
</tr>
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<a class="anchor" name="a2" doxytag="noise::module::Clamp::GetSourceModuleCount"></a><p>
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<td class="md" nowrap valign="top">virtual int noise::module::Clamp::GetSourceModuleCount </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, virtual]</code></td>
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<p>
Returns the number of source modules required by this noise module.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>The number of source modules required by this noise module. </dd></dl>
<p>
Implements <a class="el" href="classnoise_1_1module_1_1Module.html#a3">noise::module::Module</a>. </td>
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<a class="anchor" name="a3" doxytag="noise::module::Clamp::GetUpperBound"></a><p>
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<td class="md" nowrap valign="top">double noise::module::Clamp::GetUpperBound </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>
</td>
<td>
<p>
Returns the upper bound of the clamping range.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>The upper bound.</dd></dl>
If the output value from the source module is greater than the upper bound of the clamping range, this noise module clamps that value to the upper bound. </td>
</tr>
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<a class="anchor" name="a4" doxytag="noise::module::Clamp::GetValue"></a><p>
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<td class="md" nowrap valign="top">double Clamp::GetValue </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname" nowrap> <em>x</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td class="md"></td>
<td class="md" nowrap>double </td>
<td class="mdname" nowrap> <em>y</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td class="md"></td>
<td class="md" nowrap>double </td>
<td class="mdname" nowrap> <em>z</em></td>
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<td class="md"></td>
<td class="md">) </td>
<td class="md" colspan="2"> const<code> [virtual]</code></td>
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<td>
</td>
<td>
<p>
Generates an output value given the coordinates of the specified input value.
<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>x</em> </td><td>The <em>x</em> coordinate of the input value. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>y</em> </td><td>The <em>y</em> coordinate of the input value. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>z</em> </td><td>The <em>z</em> coordinate of the input value.</td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd>The output value.</dd></dl>
<dl compact><dt><b>Precondition:</b></dt><dd>All source modules required by this noise module have been passed to the <a class="el" href="classnoise_1_1module_1_1Module.html#a5">SetSourceModule()</a> method.</dd></dl>
Before an application can call this method, it must first connect all required source modules via the <a class="el" href="classnoise_1_1module_1_1Module.html#a5">SetSourceModule()</a> method. If these source modules are not connected to this noise module, this method raises a debug assertion.<p>
To determine the number of source modules required by this noise module, call the <a class="el" href="classnoise_1_1module_1_1Clamp.html#a2">GetSourceModuleCount()</a> method.
<p>
Implements <a class="el" href="classnoise_1_1module_1_1Module.html#a4">noise::module::Module</a>. </td>
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<a class="anchor" name="a5" doxytag="noise::module::Clamp::SetBounds"></a><p>
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<td class="md" nowrap valign="top">void Clamp::SetBounds </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname" nowrap> <em>lowerBound</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td class="md"></td>
<td class="md" nowrap>double </td>
<td class="mdname" nowrap> <em>upperBound</em></td>
</tr>
<tr>
<td class="md"></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
</tr>
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</td>
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<table cellspacing="5" cellpadding="0" border="0">
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</td>
<td>
<p>
Sets the lower and upper bounds of the clamping range.
<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>lowerBound</em> </td><td>The lower bound. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>upperBound</em> </td><td>The upper bound.</td></tr>
</table>
</dl>
<dl compact><dt><b>Precondition:</b></dt><dd>The lower bound must be less than or equal to the upper bound.</dd></dl>
<dl compact><dt><b>Exceptions:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>noise::ExceptionInvalidParam</em> </td><td>An invalid parameter was specified; see the preconditions for more information.</td></tr>
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</dl>
If the output value from the source module is less than the lower bound of the clamping range, this noise module clamps that value to the lower bound. If the output value from the source module is greater than the upper bound of the clamping range, this noise module clamps that value to the upper bound. </td>
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<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="clamp_8h-source.html">clamp.h</a><li>clamp.cpp</ul>
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© 2003-2005 Jason Bevins
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