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Added doc++ documentation.
2003-04-18 00:22:51 +08:00
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>class SG_EXPORT osg::LOD</TITLE>
<META NAME="GENERATOR" CONTENT="DOC++ 3.4.10">
</HEAD>
<BODY BGCOLOR="#ffffff">
<H2>class SG_EXPORT <A HREF="#DOC.DOCU">osg::LOD</A></H2></H2><BLOCKQUOTE>LOD - Level Of Detail group node which allows switching between children depending on distance from eye point.</BLOCKQUOTE>
<HR>
<H2>Inheritance:</H2>
<APPLET CODE="ClassGraph.class" WIDTH=600 HEIGHT=185>
<param name=classes value="CReferenced,MReferenced.html,CObject,MObject.html,CNode,MNode.html,CGroup,MGroup.html,CLOD,MLOD.html,CImpostor,MImpostor.html">
<param name=before value="M,M,M,M,M,M^_">
<param name=after value="Md_SPSPSP,Md_SPSP,Md_SP,Md_,M,M">
<param name=indent value="0,1,2,3,4,4">
<param name=arrowdir value="down">
</APPLET>
<HR>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif> <B><A HREF="#DOC.2.85.1">LOD</A></B>()
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif> <B><A HREF="#DOC.2.85.2">LOD</A></B>(const <!1><A HREF="LOD.html#DOC.2.85.2">LOD</A>&amp;, const <!1><A HREF="CopyOp.html">CopyOp</A>&amp; copyop=CopyOp::SHALLOW_COPY)
<DD><I>Copy constructor using CopyOp to manage deep vs shallow copy</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif> <B><A HREF="#DOC.2.85.3">META_Node</A></B>(<!1><A HREF="osg.html">osg</A>, <!1><A HREF="LOD.html">LOD</A>)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.85.4">traverse</A></B>(<!1><A HREF="NodeVisitor.html">NodeVisitor</A>&amp; nv)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual bool <B><A HREF="#DOC.2.85.5">addChild</A></B>(<!1><A HREF="Node.html">Node</A>* child)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual bool <B><A HREF="#DOC.2.85.6">addChild</A></B>(<!1><A HREF="Node.html">Node</A>* child, float min, float max)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual bool <B><A HREF="#DOC.2.85.7">removeChild</A></B>(<!1><A HREF="Node.html">Node</A>* child)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.2.85.11">setCenterMode</A></B>(<!1><A HREF="LOD.html#DOC.2.85.10">CenterMode</A> mode)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="LOD.html#DOC.2.85.10">CenterMode</A> <B><A HREF="#DOC.2.85.12">getCenterMode</A></B>() const
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.85.13">setCenter</A></B>(const <!1><A HREF="Vec3.html">Vec3</A>&amp; <!1><A HREF="BoundingSphere.html#DOC.2.29.8">center</A>)
<DD><I>Sets the object-space point which defines the center of the osg::LOD.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const <!1><A HREF="Vec3.html">Vec3</A>&amp; <B><A HREF="#DOC.2.85.14">getCenter</A></B>() const
<DD><I>return the LOD center point.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.2.85.15">setRange</A></B>(unsigned int childNo, float min, float max)
<DD><I>Sets the min and max visible ranges of range of specifiec child.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline float <B><A HREF="#DOC.2.85.16">getMinRange</A></B>(unsigned int childNo) const
<DD><I>returns the min visible range for specified child</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline float <B><A HREF="#DOC.2.85.17">getMaxRange</A></B>(unsigned int childNo) const
<DD><I>returns the max visible range for specified child</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline unsigned int <B><A HREF="#DOC.2.85.18">getNumRanges</A></B>() const
<DD><I>returns the number of ranges currently set.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline <!1><A HREF="LOD.html#DOC.2.85.9">RangeList</A>&amp; <B><A HREF="#DOC.2.85.19">getRangeList</A></B>()
<DD><I>return the list of MinMax ranges for each child</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const <!1><A HREF="LOD.html#DOC.2.85.9">RangeList</A>&amp; <B><A HREF="#DOC.2.85.20">getRangeList</A></B>() const
<DD><I>return the list of MinMax ranges for each child</I>
</DL></P>
<P><DL>
<DT><H3>Public Members</H3><DD><DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>typedef std::pair&lt;float,float&gt; <B><A HREF="#DOC.2.85.8">MinMaxPair</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>typedef std::vector&lt;<!1><A HREF="LOD.html#DOC.2.85.8">MinMaxPair</A>&gt; <B><A HREF="#DOC.2.85.9">RangeList</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>enum <B><A HREF="#DOC.2.85.10">CenterMode</A></B>
</DL></P>
<P><DL>
<DT><H3>Protected Fields</H3><DD><DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="LOD.html#DOC.2.85.10">CenterMode</A> <B><A HREF="#DOC.2.85.22">_centerMode</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="Vec3.html">Vec3</A> <B><A HREF="#DOC.2.85.23">_userDefinedCenter</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="LOD.html#DOC.2.85.9">RangeList</A> <B><A HREF="#DOC.2.85.24">_rangeList</A></B>
</DL></P>
<P><DL>
<DT><H3>Protected Methods</H3><DD><DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual <B><A HREF="#DOC.2.85.21">~LOD</A></B>()
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="Group.html">Group</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>virtual <!1><A HREF="Group.html">Group</A>* <B>asGroup</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual const <!1><A HREF="Group.html">Group</A>* <B>asGroup</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual bool <B>replaceChild</B>( <!1><A HREF="Node.html">Node</A>* origChild, <!1><A HREF="Node.html">Node</A>* newChild )
<DT>
<IMG ALT="o" SRC=icon2.gif>inline unsigned int <B>getNumChildren</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual bool <B>setChild</B>( unsigned int i, <!1><A HREF="Node.html">Node</A>* node )
<DT>
<IMG ALT="o" SRC=icon2.gif>inline <!1><A HREF="Node.html">Node</A>* <B>getChild</B>( unsigned int i )
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const <!1><A HREF="Node.html">Node</A>* <B>getChild</B>( unsigned int i ) const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline bool <B>containsNode</B>( const <!1><A HREF="Node.html">Node</A>* node ) const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline unsigned int <B>getChildIndex</B>( const <!1><A HREF="Node.html">Node</A>* node ) const
</DL></P>
<P><DL>
<DT><H3>Public Members</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>typedef std::vector&lt;<!1><A HREF="ref_ptr.html">ref_ptr</A>&lt;<!1><A HREF="Node.html">Node</A>&gt; &gt; <B>ChildList</B>
</DL></P>
<P><DL>
<DT><H3>Protected Fields</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="Group.html#DOC.2.78.1">ChildList</A> <B>_children</B>
</DL></P>
<P><DL>
<DT><H3>Protected Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>virtual bool <B>computeBound</B>() const
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="Node.html">Node</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>virtual <!1><A HREF="Object.html">Object</A>* <B>cloneType</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual <!1><A HREF="Object.html">Object</A>* <B>clone</B>(const <!1><A HREF="CopyOp.html">CopyOp</A>&amp; copyop) const
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual bool <B>isSameKindAs</B>(const <!1><A HREF="Object.html">Object</A>* obj) const
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual const char* <B>libraryName</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual const char* <B>className</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual <!1><A HREF="Transform.html">Transform</A>* <B>asTransform</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual const <!1><A HREF="Transform.html">Transform</A>* <B>asTransform</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>accept</B>(<!1><A HREF="NodeVisitor.html">NodeVisitor</A>&amp; nv)
<DT>
<IMG ALT="o" SRC=icon2.gif>virtual void <B>ascend</B>(<!1><A HREF="NodeVisitor.html">NodeVisitor</A>&amp; nv)
<DT>
<IMG ALT="o" SRC=icon2.gif>inline void <B>setName</B>( const std::string&amp; <!1><A HREF="Test.html#DOC.164.1.3">name</A> )
<DT>
<IMG ALT="o" SRC=icon2.gif>inline void <B>setName</B>( const char* <!1><A HREF="Test.html#DOC.164.1.3">name</A> )
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const std::string&amp; <B>getName</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const <!1><A HREF="Node.html#DOC.2.100.18">ParentList</A>&amp; <B>getParents</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline <!1><A HREF="Node.html#DOC.2.100.18">ParentList</A> <B>getParents</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>inline <!1><A HREF="Group.html">Group</A>* <B>getParent</B>(unsigned int i)
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const <!1><A HREF="Group.html">Group</A>* <B>getParent</B>(unsigned int i) const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline unsigned int <B>getNumParents</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setUpdateCallback</B>(<!1><A HREF="NodeCallback.html">NodeCallback</A>* nc)
<DT>
<IMG ALT="o" SRC=icon2.gif>inline <!1><A HREF="NodeCallback.html">NodeCallback</A>* <B>getUpdateCallback</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const <!1><A HREF="NodeCallback.html">NodeCallback</A>* <B>getUpdateCallback</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setAppCallback</B>(<!1><A HREF="NodeCallback.html">NodeCallback</A>* nc)
<DT>
<IMG ALT="o" SRC=icon2.gif>inline <!1><A HREF="NodeCallback.html">NodeCallback</A>* <B>getAppCallback</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const <!1><A HREF="NodeCallback.html">NodeCallback</A>* <B>getAppCallback</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline unsigned int <B>getNumChildrenRequiringUpdateTraversal</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setCullCallback</B>(<!1><A HREF="NodeCallback.html">NodeCallback</A>* nc)
<DT>
<IMG ALT="o" SRC=icon2.gif>inline <!1><A HREF="NodeCallback.html">NodeCallback</A>* <B>getCullCallback</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const <!1><A HREF="NodeCallback.html">NodeCallback</A>* <B>getCullCallback</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setCullingActive</B>(bool active)
<DT>
<IMG ALT="o" SRC=icon2.gif>inline bool <B>getCullingActive</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline unsigned int <B>getNumChildrenWithCullingDisabled</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline bool <B>isCullingActive</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline unsigned int <B>getNumChildrenWithOccluderNodes</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>bool <B>containsOccluderNodes</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline void <B>setNodeMask</B>(<!1><A HREF="Node.html#DOC.2.100.40">NodeMask</A> nm)
<DT>
<IMG ALT="o" SRC=icon2.gif>inline <!1><A HREF="Node.html#DOC.2.100.40">NodeMask</A> <B>getNodeMask</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const <!1><A HREF="Node.html#DOC.2.100.43">DescriptionList</A>&amp; <B>getDescriptions</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline <!1><A HREF="Node.html#DOC.2.100.43">DescriptionList</A>&amp; <B>getDescriptions</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const std::string&amp; <B>getDescription</B>(unsigned int i) const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline std::string&amp; <B>getDescription</B>(unsigned int i)
<DT>
<IMG ALT="o" SRC=icon2.gif>inline unsigned int <B>getNumDescriptions</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>addDescription</B>(const std::string&amp; desc)
<DT>
<IMG ALT="o" SRC=icon2.gif>inline void <B>setStateSet</B>(<!1><A HREF="StateSet.html">osg::StateSet</A>* dstate)
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="StateSet.html">osg::StateSet</A>* <B>getOrCreateStateSet</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>inline <!1><A HREF="StateSet.html">osg::StateSet</A>* <B>getStateSet</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const <!1><A HREF="StateSet.html">osg::StateSet</A>* <B>getStateSet</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const <!1><A HREF="BoundingSphere.html">BoundingSphere</A>&amp; <B>getBound</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>dirtyBound</B>()
</DL></P>
<P><DL>
<DT><H3>Public Members</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>typedef std::vector&lt;<!1><A HREF="Group.html">Group</A>*&gt; <B>ParentList</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>typedef unsigned int <B>NodeMask</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>typedef std::vector&lt;std::string&gt; <B>DescriptionList</B>
</DL></P>
<P><DL>
<DT><H3>Protected Fields</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>mutable <!1><A HREF="BoundingSphere.html">BoundingSphere</A> <B>_bsphere</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>mutable bool <B>_bsphere_computed</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>std::string <B>_name</B>
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="Node.html#DOC.2.100.18">ParentList</A> <B>_parents</B>
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="ref_ptr.html">ref_ptr</A>&lt;<!1><A HREF="NodeCallback.html">NodeCallback</A>&gt; <B>_updateCallback</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>unsigned int <B>_numChildrenRequiringUpdateTraversal</B>
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="ref_ptr.html">ref_ptr</A>&lt;<!1><A HREF="NodeCallback.html">NodeCallback</A>&gt; <B>_cullCallback</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>bool <B>_cullingActive</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>unsigned int <B>_numChildrenWithCullingDisabled</B>
<DT>
<IMG ALT="o" SRC=icon2.gif>unsigned int <B>_numChildrenWithOccluderNodes</B>
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="Node.html#DOC.2.100.40">NodeMask</A> <B>_nodeMask</B>
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="Node.html#DOC.2.100.43">DescriptionList</A> <B>_descriptions</B>
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="ref_ptr.html">ref_ptr</A>&lt;<!1><A HREF="StateSet.html">StateSet</A>&gt; <B>_stateset</B>
</DL></P>
<P><DL>
<DT><H3>Protected Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>void <B>addParent</B>(<!1><A HREF="Group.html">osg::Group</A>* node)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>removeParent</B>(<!1><A HREF="Group.html">osg::Group</A>* node)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setNumChildrenRequiringUpdateTraversal</B>(unsigned int num)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setNumChildrenWithCullingDisabled</B>(unsigned int num)
<DT>
<IMG ALT="o" SRC=icon2.gif>void <B>setNumChildrenWithOccluderNodes</B>(unsigned int num)
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="Object.html">Object</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>inline void <B>setDataVariance</B>(<!1><A HREF="Object.html#DOC.2.117.8">DataVariance</A> dv)
<DT>
<IMG ALT="o" SRC=icon2.gif>inline <!1><A HREF="Object.html#DOC.2.117.8">DataVariance</A> <B>getDataVariance</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline void <B>setUserData</B>(<!1><A HREF="Referenced.html">Referenced</A>* obj)
<DT>
<IMG ALT="o" SRC=icon2.gif>inline <!1><A HREF="Referenced.html">Referenced</A>* <B>getUserData</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const <!1><A HREF="Referenced.html">Referenced</A>* <B>getUserData</B>() const
</DL></P>
<P><DL>
<DT><H3>Public Members</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>enum <B>DataVariance</B>
</DL></P>
<P><DL>
<DT><H3>Protected Fields</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="Object.html#DOC.2.117.8">DataVariance</A> <B>_dataVariance</B>
<DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="ref_ptr.html">ref_ptr</A>&lt;<!1><A HREF="Referenced.html">Referenced</A>&gt; <B>_userData</B>
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="Referenced.html">Referenced</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>inline <!1><A HREF="Referenced.html">Referenced</A>&amp; <B>operator = </B>(<!1><A HREF="Referenced.html">Referenced</A>&amp;)
<DT>
<IMG ALT="o" SRC=icon2.gif>static void <B>setDeleteHandler</B>(<!1><A HREF="DeleteHandler.html">DeleteHandler</A>* handler)
<DT>
<IMG ALT="o" SRC=icon2.gif>static <!1><A HREF="DeleteHandler.html">DeleteHandler</A>* <B>getDeleteHandler</B>()
<DT>
<IMG ALT="o" SRC=icon2.gif>inline void <B>ref</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline void <B>unref_nodelete</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline int <B>referenceCount</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline void <B>unref</B>() const
</DL></P>
<P><DL>
<DT><H3>Protected Fields</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>mutable int <B>_refCount</B>
</DL></P>
</DL>
<A NAME="DOC.DOCU"></A>
<HR>
<H2>Documentation</H2>
<BLOCKQUOTE>LOD - Level Of Detail group node which allows switching between children
depending on distance from eye point.
Typical uses are for load balancing - objects further away from
the eye point are rendered at a lower level of detail, and at times
of high stress on the graphics pipeline lower levels of detail can
also be chosen.
The children are ordered from most detailed (for close up views) to the least
(see from a distance), and a set of ranges are used to decide which LOD is used
at different view distances, the criteria used is child 'i' is used when
range[i]<dist<range[i+1] is true. This requires there to be n+1 range values where the number of
children is n, since no maximum distance of infinity is assumed. If the number of range values (m)
is insufficient then the children m through to n will be ignored, only 0..m-1 will be used
during rendering.</BLOCKQUOTE>
<DL>
<A NAME="LOD"></A>
<A NAME="DOC.2.85.1"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> LOD()</B></TT>
<DL><DT><DD></DL><P>
<A NAME="LOD"></A>
<A NAME="DOC.2.85.2"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> LOD(const <!1><A HREF="LOD.html#DOC.2.85.2">LOD</A>&amp;, const <!1><A HREF="CopyOp.html">CopyOp</A>&amp; copyop=CopyOp::SHALLOW_COPY)</B></TT>
<DD>Copy constructor using CopyOp to manage deep vs shallow copy
<DL><DT><DD></DL><P>
<A NAME="META_Node"></A>
<A NAME="DOC.2.85.3"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> META_Node(<!1><A HREF="osg.html">osg</A>, <!1><A HREF="LOD.html">LOD</A>)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="traverse"></A>
<A NAME="DOC.2.85.4"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void traverse(<!1><A HREF="NodeVisitor.html">NodeVisitor</A>&amp; nv)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="addChild"></A>
<A NAME="DOC.2.85.5"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual bool addChild(<!1><A HREF="Node.html">Node</A>* child)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="addChild"></A>
<A NAME="DOC.2.85.6"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual bool addChild(<!1><A HREF="Node.html">Node</A>* child, float min, float max)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="removeChild"></A>
<A NAME="DOC.2.85.7"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual bool removeChild(<!1><A HREF="Node.html">Node</A>* child)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="MinMaxPair"></A>
<A NAME="DOC.2.85.8"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>typedef std::pair&lt;float,float&gt; MinMaxPair</B></TT>
<DL><DT><DD></DL><P>
<A NAME="RangeList"></A>
<A NAME="DOC.2.85.9"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>typedef std::vector&lt;<!1><A HREF="LOD.html#DOC.2.85.8">MinMaxPair</A>&gt; RangeList</B></TT>
<DL><DT><DD></DL><P>
<A NAME="CenterMode"></A>
<A NAME="DOC.2.85.10"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>enum CenterMode</B></TT>
<DL><DT><DD></DL><P><DL>
<A NAME="USE_BOUNDING_SPHERE_CENTER"></A>
<A NAME="DOC.2.85.10.1"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> USE_BOUNDING_SPHERE_CENTER</B></TT>
<DL><DT><DD></DL><P>
<A NAME="USER_DEFINED_CENTER"></A>
<A NAME="DOC.2.85.10.2"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> USER_DEFINED_CENTER</B></TT>
<DL><DT><DD></DL><P></DL>
<A NAME="setCenterMode"></A>
<A NAME="DOC.2.85.11"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void setCenterMode(<!1><A HREF="LOD.html#DOC.2.85.10">CenterMode</A> mode)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="getCenterMode"></A>
<A NAME="DOC.2.85.12"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="LOD.html#DOC.2.85.10">CenterMode</A> getCenterMode() const </B></TT>
<DL><DT><DD></DL><P>
<A NAME="setCenter"></A>
<A NAME="DOC.2.85.13"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void setCenter(const <!1><A HREF="Vec3.html">Vec3</A>&amp; <!1><A HREF="BoundingSphere.html#DOC.2.29.8">center</A>)</B></TT>
<DD>Sets the object-space point which defines the center of the osg::LOD.
center is affected by any transforms in the hierarchy above the osg::LOD.
<DL><DT><DD></DL><P>
<A NAME="getCenter"></A>
<A NAME="DOC.2.85.14"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const <!1><A HREF="Vec3.html">Vec3</A>&amp; getCenter() const </B></TT>
<DD>return the LOD center point.
<DL><DT><DD></DL><P>
<A NAME="setRange"></A>
<A NAME="DOC.2.85.15"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void setRange(unsigned int childNo, float min, float max)</B></TT>
<DD>Sets the min and max visible ranges of range of specifiec child.
Values are floating point distance specified in local objects coordinates.
<DL><DT><DD></DL><P>
<A NAME="getMinRange"></A>
<A NAME="DOC.2.85.16"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline float getMinRange(unsigned int childNo) const </B></TT>
<DD>returns the min visible range for specified child
<DL><DT><DD></DL><P>
<A NAME="getMaxRange"></A>
<A NAME="DOC.2.85.17"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline float getMaxRange(unsigned int childNo) const </B></TT>
<DD>returns the max visible range for specified child
<DL><DT><DD></DL><P>
<A NAME="getNumRanges"></A>
<A NAME="DOC.2.85.18"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline unsigned int getNumRanges() const </B></TT>
<DD>returns the number of ranges currently set.
An LOD which has been fully set up will have getNumChildren()==getNumRanges().
<DL><DT><DD></DL><P>
<A NAME="getRangeList"></A>
<A NAME="DOC.2.85.19"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline <!1><A HREF="LOD.html#DOC.2.85.9">RangeList</A>&amp; getRangeList()</B></TT>
<DD>return the list of MinMax ranges for each child
<DL><DT><DD></DL><P>
<A NAME="getRangeList"></A>
<A NAME="DOC.2.85.20"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const <!1><A HREF="LOD.html#DOC.2.85.9">RangeList</A>&amp; getRangeList() const </B></TT>
<DD>return the list of MinMax ranges for each child
<DL><DT><DD></DL><P>
<A NAME="~LOD"></A>
<A NAME="DOC.2.85.21"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual ~LOD()</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_centerMode"></A>
<A NAME="DOC.2.85.22"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="LOD.html#DOC.2.85.10">CenterMode</A> _centerMode</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_userDefinedCenter"></A>
<A NAME="DOC.2.85.23"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="Vec3.html">Vec3</A> _userDefinedCenter</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_rangeList"></A>
<A NAME="DOC.2.85.24"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="LOD.html#DOC.2.85.9">RangeList</A> _rangeList</B></TT>
<DL><DT><DD></DL><P></DL>
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