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<div class="title">osg::TransferFunction1D Class Reference</div> </div>
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<!-- doxytag: class="osg::TransferFunction1D" --><!-- doxytag: inherits="osg::TransferFunction" -->
<p>1D variant of <a class="el" href="a00920.html" title="TransferFunction is a class that provide a 1D,2D or 3D colour look up table that can be used on the G...">TransferFunction</a>.
<a href="a00921.html#details">More...</a></p>
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Inheritance diagram for osg::TransferFunction1D:</div>
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<area shape="rect" id="node2" href="a00920.html" title="TransferFunction is a class that provide a 1D,2D or 3D colour look up table that can be used on the G..." alt="" coords="15,160,180,189"/><area shape="rect" id="node4" href="a00500.html" title="Base class/standard interface for objects which require IO support, cloning and reference counting..." alt="" coords="47,83,148,112"/><area shape="rect" id="node6" href="a00627.html" title="Base class from providing referencing counted objects." alt="" coords="31,5,164,35"/></map>
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<p><a href="a02105.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef std::map< float, <br class="typebreak"/>
<a class="el" href="a01074.html">osg::Vec4</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#a8ecd95b1c047a02400ccb48fda0917e7">ColorMap</a></td></tr>
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#a948d8dfe67c7477a00c9049b2159e4da">TransferFunction1D</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#aba130d52477bf23ba24b834cc90be62e">TransferFunction1D</a> (const <a class="el" href="a00921.html">TransferFunction1D</a> &tf, const <a class="el" href="a00169.html">CopyOp</a> &copyop=CopyOp::SHALLOW_COPY)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Copy constructor using <a class="el" href="a00169.html" title="Copy Op(erator) used to control whether shallow or deep copy is used during copy construction and clo...">CopyOp</a> to manage deep vs shallow copy. <a href="#aba130d52477bf23ba24b834cc90be62e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#a88f6e2f1bec2cca6f6c72f12bcf3b237">META_Object</a> (osg, <a class="el" href="a00921.html">TransferFunction1D</a>) float getMinimum() const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the mnimum transfer function value. <a href="#a88f6e2f1bec2cca6f6c72f12bcf3b237"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#a442bb6e2d8e773497e3529d905014bfb">getMaximum</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the maximum transfer function value. <a href="#a442bb6e2d8e773497e3529d905014bfb"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#ae4b794ece3782a678d1572f7f27900c3">allocate</a> (unsigned int numImageCells)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">allocate the <a class="el" href="a00353.html" title="Image class for encapsulating the storage texture image data.">osg::Image</a> with specified dimension. <a href="#ae4b794ece3782a678d1572f7f27900c3"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#a358a021303bef2bd948e9f60c0cd036e">clear</a> (const <a class="el" href="a01074.html">osg::Vec4</a> &color=<a class="el" href="a01074.html">osg::Vec4</a>(1.0f, 1.0f, 1.0f, 1.0f))</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Clear the whole range to just represet a single color. <a href="#a358a021303bef2bd948e9f60c0cd036e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="a01074.html">osg::Vec4</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#ad07e3b4c7c71dde0cd90ec05042da5dd">getPixelValue</a> (unsigned int i) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get pixel value from the image. <a href="#ad07e3b4c7c71dde0cd90ec05042da5dd"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#a5618473b85ab1035e3c67c1568a260f0">getNumberImageCells</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the number of image cells that are assigned to the represent the transfer function when download to the GPU. <a href="#a5618473b85ab1035e3c67c1568a260f0"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#a8e99dc6c580bdf0e70498095bc3b641a">setColor</a> (float v, const <a class="el" href="a01074.html">osg::Vec4</a> &color, bool updateImage=true)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the color for a specified transfer function value. <a href="#a8e99dc6c580bdf0e70498095bc3b641a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="a01074.html">osg::Vec4</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#a7d8497ccc19faef76e09e6b3d2c83ff7">getColor</a> (float v) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the color for a specified transfer function value, interpolating the value if no exact match is found. <a href="#a7d8497ccc19faef76e09e6b3d2c83ff7"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00921.html#a8ecd95b1c047a02400ccb48fda0917e7">ColorMap</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#a47b2e2504ed0cd45ccca6831f3f6cd9f">getColorMap</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the color map that stores the mapping between the the tranfser function value and the colour it maps to. <a href="#a47b2e2504ed0cd45ccca6831f3f6cd9f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="a00921.html#a8ecd95b1c047a02400ccb48fda0917e7">ColorMap</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#a8e915d727edaa538270cd5c07e9c4f6e">getColorMap</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the const color map that stores the mapping between the the tranfser function value and the colour it maps to. <a href="#a8e915d727edaa538270cd5c07e9c4f6e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#af8ffb4b4a450b36d73bcfa0bcbb121a0">assign</a> (const <a class="el" href="a00921.html#a8ecd95b1c047a02400ccb48fda0917e7">ColorMap</a> &vcm)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Assign a color map and automatically update the image to make sure they are in sync. <a href="#af8ffb4b4a450b36d73bcfa0bcbb121a0"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#abe89a923707956e50da2c5f49ee42007">updateImage</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Manually update the associate <a class="el" href="a00353.html" title="Image class for encapsulating the storage texture image data.">osg::Image</a> to represent the colors assigned in the color map. <a href="#abe89a923707956e50da2c5f49ee42007"></a><br/></td></tr>
<tr><td colspan="2"><h2><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#abb03e5e45cb498a41c4276dfcceaeb68">assignToImage</a> (float lower_v, const <a class="el" href="a01074.html">osg::Vec4</a> &lower_c, float upper_v, const <a class="el" href="a01074.html">osg::Vec4</a> &upper_c)</td></tr>
<tr><td colspan="2"><h2><a name="pro-attribs"></a>
Protected Attributes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00921.html#a8ecd95b1c047a02400ccb48fda0917e7">ColorMap</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00921.html#a715bd44c3cb62c43cbdffe98fc0179b6">_colorMap</a></td></tr>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>1D variant of <a class="el" href="a00920.html" title="TransferFunction is a class that provide a 1D,2D or 3D colour look up table that can be used on the G...">TransferFunction</a>. </p>
</div><hr/><h2>Member Typedef Documentation</h2>
<a class="anchor" id="a8ecd95b1c047a02400ccb48fda0917e7"></a><!-- doxytag: member="osg::TransferFunction1D::ColorMap" ref="a8ecd95b1c047a02400ccb48fda0917e7" args="" -->
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<td class="memname">typedef std::map<float, <a class="el" href="a01074.html">osg::Vec4</a>> <a class="el" href="a00921.html#a8ecd95b1c047a02400ccb48fda0917e7">osg::TransferFunction1D::ColorMap</a></td>
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<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a948d8dfe67c7477a00c9049b2159e4da"></a><!-- doxytag: member="osg::TransferFunction1D::TransferFunction1D" ref="a948d8dfe67c7477a00c9049b2159e4da" args="()" -->
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<td class="memname">osg::TransferFunction1D::TransferFunction1D </td>
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<a class="anchor" id="aba130d52477bf23ba24b834cc90be62e"></a><!-- doxytag: member="osg::TransferFunction1D::TransferFunction1D" ref="aba130d52477bf23ba24b834cc90be62e" args="(const TransferFunction1D &tf, const CopyOp &copyop=CopyOp::SHALLOW_COPY)" -->
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<td class="memname">osg::TransferFunction1D::TransferFunction1D </td>
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<td class="paramtype">const <a class="el" href="a00921.html">TransferFunction1D</a> & </td>
<td class="paramname"><em>tf</em>, </td>
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<td class="paramtype">const <a class="el" href="a00169.html">CopyOp</a> & </td>
<td class="paramname"><em>copyop</em> = <code>CopyOp::SHALLOW_COPY</code> </td>
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<p>Copy constructor using <a class="el" href="a00169.html" title="Copy Op(erator) used to control whether shallow or deep copy is used during copy construction and clo...">CopyOp</a> to manage deep vs shallow copy. </p>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="ae4b794ece3782a678d1572f7f27900c3"></a><!-- doxytag: member="osg::TransferFunction1D::allocate" ref="ae4b794ece3782a678d1572f7f27900c3" args="(unsigned int numImageCells)" -->
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<td class="memname">void osg::TransferFunction1D::allocate </td>
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<td class="paramtype">unsigned int </td>
<td class="paramname"><em>numImageCells</em></td><td>)</td>
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<p>allocate the <a class="el" href="a00353.html" title="Image class for encapsulating the storage texture image data.">osg::Image</a> with specified dimension. </p>
<p>The <a class="el" href="a00353.html" title="Image class for encapsulating the storage texture image data.">Image</a> tracks the color map, and is used to represent the transfer function when download to GPU. </p>
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<a class="anchor" id="af8ffb4b4a450b36d73bcfa0bcbb121a0"></a><!-- doxytag: member="osg::TransferFunction1D::assign" ref="af8ffb4b4a450b36d73bcfa0bcbb121a0" args="(const ColorMap &vcm)" -->
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<td class="memname">void osg::TransferFunction1D::assign </td>
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<td class="paramname"><em>vcm</em></td><td>)</td>
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<p>Assign a color map and automatically update the image to make sure they are in sync. </p>
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<a class="anchor" id="abb03e5e45cb498a41c4276dfcceaeb68"></a><!-- doxytag: member="osg::TransferFunction1D::assignToImage" ref="abb03e5e45cb498a41c4276dfcceaeb68" args="(float lower_v, const osg::Vec4 &lower_c, float upper_v, const osg::Vec4 &upper_c)" -->
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<td class="memname">void osg::TransferFunction1D::assignToImage </td>
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<td class="paramtype">float </td>
<td class="paramname"><em>lower_v</em>, </td>
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<td class="paramtype">const <a class="el" href="a01074.html">osg::Vec4</a> & </td>
<td class="paramname"><em>lower_c</em>, </td>
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<td class="paramtype">const <a class="el" href="a01074.html">osg::Vec4</a> & </td>
<td class="paramname"><em>upper_c</em> </td>
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<td>)</td>
<td></td><td><code> [protected]</code></td>
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<a class="anchor" id="a358a021303bef2bd948e9f60c0cd036e"></a><!-- doxytag: member="osg::TransferFunction1D::clear" ref="a358a021303bef2bd948e9f60c0cd036e" args="(const osg::Vec4 &color=osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f))" -->
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<td class="memname">void osg::TransferFunction1D::clear </td>
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<td class="paramtype">const <a class="el" href="a01074.html">osg::Vec4</a> & </td>
<td class="paramname"><em>color</em> = <code><a class="el" href="a01074.html">osg::Vec4</a>(1.0f, 1.0f, 1.0f, 1.0f)</code></td><td>)</td>
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<p>Clear the whole range to just represet a single color. </p>
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<a class="anchor" id="a7d8497ccc19faef76e09e6b3d2c83ff7"></a><!-- doxytag: member="osg::TransferFunction1D::getColor" ref="a7d8497ccc19faef76e09e6b3d2c83ff7" args="(float v) const " -->
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<td class="memname"><a class="el" href="a01074.html">osg::Vec4</a> osg::TransferFunction1D::getColor </td>
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<p>Get the color for a specified transfer function value, interpolating the value if no exact match is found. </p>
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<a class="anchor" id="a47b2e2504ed0cd45ccca6831f3f6cd9f"></a><!-- doxytag: member="osg::TransferFunction1D::getColorMap" ref="a47b2e2504ed0cd45ccca6831f3f6cd9f" args="()" -->
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<td class="memname"><a class="el" href="a00921.html#a8ecd95b1c047a02400ccb48fda0917e7">ColorMap</a>& osg::TransferFunction1D::getColorMap </td>
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<p>Get the color map that stores the mapping between the the tranfser function value and the colour it maps to. </p>
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<a class="anchor" id="a8e915d727edaa538270cd5c07e9c4f6e"></a><!-- doxytag: member="osg::TransferFunction1D::getColorMap" ref="a8e915d727edaa538270cd5c07e9c4f6e" args="() const " -->
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<td class="memname">const <a class="el" href="a00921.html#a8ecd95b1c047a02400ccb48fda0917e7">ColorMap</a>& osg::TransferFunction1D::getColorMap </td>
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<td> const<code> [inline]</code></td>
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<p>Get the const color map that stores the mapping between the the tranfser function value and the colour it maps to. </p>
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<a class="anchor" id="a442bb6e2d8e773497e3529d905014bfb"></a><!-- doxytag: member="osg::TransferFunction1D::getMaximum" ref="a442bb6e2d8e773497e3529d905014bfb" args="() const " -->
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<td class="memname">float osg::TransferFunction1D::getMaximum </td>
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<p>Get the maximum transfer function value. </p>
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<a class="anchor" id="a5618473b85ab1035e3c67c1568a260f0"></a><!-- doxytag: member="osg::TransferFunction1D::getNumberImageCells" ref="a5618473b85ab1035e3c67c1568a260f0" args="() const " -->
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<td class="memname">unsigned int osg::TransferFunction1D::getNumberImageCells </td>
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<p>Get the number of image cells that are assigned to the represent the transfer function when download to the GPU. </p>
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<td class="memname"><a class="el" href="a01074.html">osg::Vec4</a> osg::TransferFunction1D::getPixelValue </td>
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<p>Get pixel value from the image. </p>
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<p>Get the mnimum transfer function value. </p>
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<td class="memname">void osg::TransferFunction1D::setColor </td>
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<td class="paramtype">const <a class="el" href="a01074.html">osg::Vec4</a> & </td>
<td class="paramname"><em>color</em>, </td>
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<p>Set the color for a specified transfer function value. </p>
<p>updateImage defaults to true, and tells the setColor function to update the associate <a class="el" href="a00353.html" title="Image class for encapsulating the storage texture image data.">osg::Image</a> that tracks the color map. Pass in false as the updateImage parameter if you are setting up many values at once to avoid recomputating og the image data, then once all setColor calls are made explictly call <a class="el" href="a00921.html#abe89a923707956e50da2c5f49ee42007" title="Manually update the associate osg::Image to represent the colors assigned in the color map...">updateImage()</a> to bring the <a class="el" href="a00353.html" title="Image class for encapsulating the storage texture image data.">osg::Image</a> back into sync with the color map. </p>
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<td class="memname">void osg::TransferFunction1D::updateImage </td>
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<p>Manually update the associate <a class="el" href="a00353.html" title="Image class for encapsulating the storage texture image data.">osg::Image</a> to represent the colors assigned in the color map. </p>
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<hr/><h2>Member Data Documentation</h2>
<a class="anchor" id="a715bd44c3cb62c43cbdffe98fc0179b6"></a><!-- doxytag: member="osg::TransferFunction1D::_colorMap" ref="a715bd44c3cb62c43cbdffe98fc0179b6" args="" -->
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<td class="memname"><a class="el" href="a00921.html#a8ecd95b1c047a02400ccb48fda0917e7">ColorMap</a> <a class="el" href="a00921.html#a715bd44c3cb62c43cbdffe98fc0179b6">osg::TransferFunction1D::_colorMap</a><code> [protected]</code></td>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>osg/<a class="el" href="a01270.html">TransferFunction</a></li>
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