601 lines
33 KiB
HTML
601 lines
33 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML>
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<HEAD>
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<TITLE>class SG_EXPORT osg::NodeVisitor</TITLE>
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<META NAME="GENERATOR" CONTENT="DOC++ 3.4.6">
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<BODY BGCOLOR="#ffffff">
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<H2>class SG_EXPORT <A HREF="#DOC.DOCU">osg::NodeVisitor</A></H2></H2><BLOCKQUOTE>Visitor for type safe operations on osg::Node's.</BLOCKQUOTE>
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<HR>
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<H2>Inheritance:</H2>
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<APPLET CODE="ClassGraph.class" WIDTH=600 HEIGHT=95>
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<param name=classes value="CReferenced,MReferenced.html,CNodeVisitor,MNodeVisitor.html,CCollectOccludersVisitor,MCollectOccludersVisitor.html">
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<param name=before value="M,M,M^_">
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<param name=after value="Md_,M,M">
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<param name=indent value="0,1,1">
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<param name=arrowdir value="down">
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</APPLET>
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<HR>
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<DL>
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<P><DL>
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<DT><H3>Public Classes</H3><DD><DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>enum <B><A HREF="#DOC.2.158.1">TraversalMode</A></B>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>enum <B><A HREF="#DOC.2.158.2">VisitorType</A></B>
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<DT>
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class <B><A HREF="DatabaseRequestHandler.html">DatabaseRequestHandler</A></B>: public <!1><A HREF="Referenced.html">osg::Referenced</A>
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<DD><I>callback for managing database paging, such as generated by PagedLOD nodes</I>
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</DL></P>
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<P><DL>
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<DT><H3>Public Methods</H3><DD><DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif> <B><A HREF="#DOC.2.158.3">NodeVisitor</A></B>(<!1><A HREF="NodeVisitor.html#DOC.2.158.1">TraversalMode</A> tm=<!1><A HREF="NodeVisitor.html#DOC.2.158.1.1">TRAVERSE_NONE</A>)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif> <B><A HREF="#DOC.2.158.4">NodeVisitor</A></B>(<!1><A HREF="NodeVisitor.html#DOC.2.158.2">VisitorType</A> type, <!1><A HREF="NodeVisitor.html#DOC.2.158.1">TraversalMode</A> tm=<!1><A HREF="NodeVisitor.html#DOC.2.158.1.1">TRAVERSE_NONE</A>)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual <B><A HREF="#DOC.2.158.5">~NodeVisitor</A></B>()
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.6">reset</A></B>()
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<DD><I>Method to call to reset visitor.</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.158.7">setVisitorType</A></B>(<!1><A HREF="NodeVisitor.html#DOC.2.158.2">VisitorType</A> type)
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<DD><I>Set the VisitorType, used to distingush different visitors during traversal of the scene, typically used in the Node::traverse() method to select which behaviour to use for different types of traversal/visitors</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline <!1><A HREF="NodeVisitor.html#DOC.2.158.2">VisitorType</A> <B><A HREF="#DOC.2.158.8">getVisitorType</A></B>() const
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<DD><I>Get the VisitorType</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.158.9">setTraversalNumber</A></B>(int fn)
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<DD><I>Set the traversal number.</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline int <B><A HREF="#DOC.2.158.10">getTraversalNumber</A></B>() const
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<DD><I>Get the traversal number.</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.158.11">setFrameStamp</A></B>(<!1><A HREF="FrameStamp.html">FrameStamp</A>* fs)
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<DD><I>Set the FrameStamp that this traversal is assoicated with</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const <!1><A HREF="FrameStamp.html">FrameStamp</A>* <B><A HREF="#DOC.2.158.12">getFrameStamp</A></B>() const
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<DD><I>Get the FrameStamp that this traversal is assoicated with</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.158.13">setTraversalMask</A></B>(Node::NodeMask mask)
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<DD><I>Set the TraversalMask of this NodeVisitor.</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline Node::NodeMask <B><A HREF="#DOC.2.158.14">getTraversalMask</A></B>() const
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<DD><I>Get the TraversalMask</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.158.15">setNodeMaskOverride</A></B>(Node::NodeMask mask)
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<DD><I>Set the NodeMaskOverride mask.</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline Node::NodeMask <B><A HREF="#DOC.2.158.16">getNodeMaskOverride</A></B>() const
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<DD><I>Get the NodeMaskOverride mask</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline bool <B><A HREF="#DOC.2.158.17">validNodeMask</A></B>(const <!1><A HREF="Node.html">osg::Node</A>& node) const
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<DD><I>Method to called by Node and its subclass' Node::accept() method, if the result is true to be used to cull operations of nodes and their subgraphs.</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.158.18">setTraversalMode</A></B>(<!1><A HREF="NodeVisitor.html#DOC.2.158.1">TraversalMode</A> mode)
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<DD><I>Set the traversal mode for Node::traverse() to use when deciding which children of a node to traverse.</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline <!1><A HREF="NodeVisitor.html#DOC.2.158.1">TraversalMode</A> <B><A HREF="#DOC.2.158.19">getTraversalMode</A></B>() const
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<DD><I>Get the traversal mode</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.158.20">setUserData</A></B>(<!1><A HREF="Referenced.html">Referenced</A>* obj)
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<DD><I> Set user data, data must be subclased from Referenced to allow automatic memory handling.</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline <!1><A HREF="Referenced.html">Referenced</A>* <B><A HREF="#DOC.2.158.21">getUserData</A></B>()
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<DD><I>Get user data</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const <!1><A HREF="Referenced.html">Referenced</A>* <B><A HREF="#DOC.2.158.22">getUserData</A></B>() const
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<DD><I>Get const user data</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.158.23">traverse</A></B>(<!1><A HREF="Node.html">Node</A>& node)
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<DD><I>Method for handling traversal of a nodes.</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.158.24">pushOntoNodePath</A></B>(<!1><A HREF="Node.html">Node</A>* node)
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<DD><I>Method called by osg::Node::accept() method before a call the NodeVisitor::apply().</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.158.25">popFromNodePath</A></B>()
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<DD><I>Method callby osg::Node::accept() method after a call the NodeVisitor::apply().</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="NodePath.html">NodePath</A>& <B><A HREF="#DOC.2.158.26">getNodePath</A></B>()
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<DD><I>Get the non const NodePath from the top most node applied down to the current Node being visited</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>const <!1><A HREF="NodePath.html">NodePath</A>& <B><A HREF="#DOC.2.158.27">getNodePath</A></B>() const
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<DD><I>Get the const NodePath from the top most node applied down to the current Node being visited</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual <!1><A HREF="osg.html#DOC.2.262">osg::Vec3</A> <B><A HREF="#DOC.2.158.28">getEyePoint</A></B>() const
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<DD><I>Get the eye point in local coordinates.</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual float <B><A HREF="#DOC.2.158.29">getDistanceToEyePoint</A></B>(const <!1><A HREF="osg.html#DOC.2.262">Vec3</A>& , bool ) const
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<DD><I>Get the distance from a point to the eye point, distance value in local coordinate system.</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual float <B><A HREF="#DOC.2.158.30">getDistanceFromEyePoint</A></B>(const <!1><A HREF="osg.html#DOC.2.262">Vec3</A>& , bool ) const
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<DD><I>Get the distance of a point from the eye point, distance value in the eye coordinate system.</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.31">apply</A></B>(<!1><A HREF="Node.html">Node</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.32">apply</A></B>(<!1><A HREF="Geode.html">Geode</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.33">apply</A></B>(<!1><A HREF="Billboard.html">Billboard</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.34">apply</A></B>(<!1><A HREF="Group.html">Group</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.35">apply</A></B>(<!1><A HREF="Projection.html">Projection</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.36">apply</A></B>(<!1><A HREF="CoordinateSystemNode.html">CoordinateSystemNode</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.37">apply</A></B>(<!1><A HREF="ClipNode.html">ClipNode</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.38">apply</A></B>(<!1><A HREF="TexGenNode.html">TexGenNode</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.39">apply</A></B>(<!1><A HREF="LightSource.html">LightSource</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.40">apply</A></B>(<!1><A HREF="Transform.html">Transform</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.41">apply</A></B>(<!1><A HREF="MatrixTransform.html">MatrixTransform</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.42">apply</A></B>(<!1><A HREF="PositionAttitudeTransform.html">PositionAttitudeTransform</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.43">apply</A></B>(<!1><A HREF="Switch.html">Switch</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.44">apply</A></B>(<!1><A HREF="Sequence.html">Sequence</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.45">apply</A></B>(<!1><A HREF="LOD.html">LOD</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.46">apply</A></B>(<!1><A HREF="PagedLOD.html">PagedLOD</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.47">apply</A></B>(<!1><A HREF="Impostor.html">Impostor</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.48">apply</A></B>(<!1><A HREF="ClearNode.html">ClearNode</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual void <B><A HREF="#DOC.2.158.49">apply</A></B>(<!1><A HREF="OccluderNode.html">OccluderNode</A>& node)
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.2.158.51">setDatabaseRequestHandler</A></B>(<!1><A HREF="DatabaseRequestHandler.html">DatabaseRequestHandler</A>* handler)
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<DD><I>Set the handler for database requests</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="DatabaseRequestHandler.html">DatabaseRequestHandler</A>* <B><A HREF="#DOC.2.158.52">getDatabaseRequestHandler</A></B>()
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<DD><I>Get the handler for database requests</I>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>const <!1><A HREF="DatabaseRequestHandler.html">DatabaseRequestHandler</A>* <B><A HREF="#DOC.2.158.53">getDatabaseRequestHandler</A></B>() const
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<DD><I>Get the const handler for database requests</I>
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</DL></P>
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<P><DL>
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<DT><H3>Protected Fields</H3><DD><DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="NodeVisitor.html#DOC.2.158.2">VisitorType</A> <B><A HREF="#DOC.2.158.54">_visitorType</A></B>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>int <B><A HREF="#DOC.2.158.55">_traversalNumber</A></B>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="ref_ptr.html">ref_ptr</A><<!1><A HREF="FrameStamp.html">FrameStamp</A>> <B><A HREF="#DOC.2.158.56">_frameStamp</A></B>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="NodeVisitor.html#DOC.2.158.1">TraversalMode</A> <B><A HREF="#DOC.2.158.57">_traversalMode</A></B>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>Node::NodeMask <B><A HREF="#DOC.2.158.58">_traversalMask</A></B>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>Node::NodeMask <B><A HREF="#DOC.2.158.59">_nodeMaskOverride</A></B>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="NodePath.html">NodePath</A> <B><A HREF="#DOC.2.158.60">_nodePath</A></B>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="ref_ptr.html">ref_ptr</A><<!1><A HREF="Referenced.html">Referenced</A>> <B><A HREF="#DOC.2.158.61">_userData</A></B>
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<DT>
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<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="ref_ptr.html">ref_ptr</A><<!1><A HREF="DatabaseRequestHandler.html">DatabaseRequestHandler</A>> <B><A HREF="#DOC.2.158.62">_databaseRequestHandler</A></B>
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</DL></P>
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</DL>
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<HR><H3>Inherited from <A HREF="Referenced.html">Referenced</A>:</H3>
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<DL>
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<P><DL>
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<DT><H3>Public Methods</H3><DD><DT>
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<IMG ALT="o" SRC=icon2.gif>inline <!1><A HREF="Referenced.html">Referenced</A>& <B>operator = </B>(const <!1><A HREF="Referenced.html">Referenced</A>&)
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<DT>
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<IMG ALT="o" SRC=icon2.gif>static void <B>setDeleteHandler</B>(<!1><A HREF="DeleteHandler.html">DeleteHandler</A>* handler)
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<DT>
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<IMG ALT="o" SRC=icon2.gif>static <!1><A HREF="DeleteHandler.html">DeleteHandler</A>* <B>getDeleteHandler</B>()
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<DT>
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<IMG ALT="o" SRC=icon2.gif>inline void <B>ref</B>() const
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<DT>
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<IMG ALT="o" SRC=icon2.gif>inline void <B>unref_nodelete</B>() const
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<DT>
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<IMG ALT="o" SRC=icon2.gif>inline int <B>referenceCount</B>() const
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<DT>
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<IMG ALT="o" SRC=icon2.gif>inline void <B>unref</B>() const
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</DL></P>
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<P><DL>
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<DT><H3>Protected Fields</H3><DD><DT>
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<IMG ALT="o" SRC=icon2.gif>mutable OpenThreads::Mutex <B>_refMutex</B>
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<DT>
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<IMG ALT="o" SRC=icon2.gif>mutable int <B>_refCount</B>
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</DL></P>
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</DL>
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<A NAME="DOC.DOCU"></A>
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<HR>
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<H2>Documentation</H2>
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<BLOCKQUOTE>Visitor for type safe operations on osg::Node's.
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Based on GOF's Visitor pattern. The NodeVisitor
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is useful for developing type safe operations to nodes
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in the scene graph (as per Visitor pattern), and adds to this
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support for optional scene graph traversal to allow
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operations to be applied to whole scenes at once. The Visitor
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pattern uses a technique of double dispatch as a mechanism to
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called the appropriate apply(..) method of the NodeVisitor. To
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use this feature one must use the Node::accept(NodeVisitor) which
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is extended in each Node subclass, rather than the NodeVisitor
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apply directly. So use root->accept(myVisitor); instead of
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myVisitor.apply(*root). The later method will bypass the double
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dispatch and the appropriate NodeVisitor::apply(..) method will
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not be called. </BLOCKQUOTE>
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<DL>
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<A NAME="TraversalMode"></A>
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<A NAME="DOC.2.158.1"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>enum TraversalMode</B></TT>
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<DL><DT><DD></DL><P><DL>
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<A NAME="TRAVERSE_NONE"></A>
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<A NAME="DOC.2.158.1.1"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> TRAVERSE_NONE</B></TT>
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<DL><DT><DD></DL><P>
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<A NAME="TRAVERSE_PARENTS"></A>
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<A NAME="DOC.2.158.1.2"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> TRAVERSE_PARENTS</B></TT>
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<DL><DT><DD></DL><P>
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<A NAME="TRAVERSE_ALL_CHILDREN"></A>
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<A NAME="DOC.2.158.1.3"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> TRAVERSE_ALL_CHILDREN</B></TT>
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<DL><DT><DD></DL><P>
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<A NAME="TRAVERSE_ACTIVE_CHILDREN"></A>
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<A NAME="DOC.2.158.1.4"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> TRAVERSE_ACTIVE_CHILDREN</B></TT>
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<DL><DT><DD></DL><P></DL>
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<A NAME="VisitorType"></A>
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<A NAME="DOC.2.158.2"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>enum VisitorType</B></TT>
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<DL><DT><DD></DL><P><DL>
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<A NAME="NODE_VISITOR"></A>
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<A NAME="DOC.2.158.2.1"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> NODE_VISITOR</B></TT>
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<DL><DT><DD></DL><P>
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|
<A NAME="UPDATE_VISITOR"></A>
|
|
<A NAME="DOC.2.158.2.2"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> UPDATE_VISITOR</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="COLLECT_OCCLUDER_VISITOR"></A>
|
|
<A NAME="DOC.2.158.2.3"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> COLLECT_OCCLUDER_VISITOR</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="CULL_VISITOR"></A>
|
|
<A NAME="DOC.2.158.2.4"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> CULL_VISITOR</B></TT>
|
|
<DL><DT><DD></DL><P></DL>
|
|
|
|
<A NAME="NodeVisitor"></A>
|
|
<A NAME="DOC.2.158.3"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> NodeVisitor(<!1><A HREF="NodeVisitor.html#DOC.2.158.1">TraversalMode</A> tm=<!1><A HREF="NodeVisitor.html#DOC.2.158.1.1">TRAVERSE_NONE</A>)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="NodeVisitor"></A>
|
|
<A NAME="DOC.2.158.4"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> NodeVisitor(<!1><A HREF="NodeVisitor.html#DOC.2.158.2">VisitorType</A> type, <!1><A HREF="NodeVisitor.html#DOC.2.158.1">TraversalMode</A> tm=<!1><A HREF="NodeVisitor.html#DOC.2.158.1.1">TRAVERSE_NONE</A>)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="~NodeVisitor"></A>
|
|
<A NAME="DOC.2.158.5"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual ~NodeVisitor()</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="reset"></A>
|
|
<A NAME="DOC.2.158.6"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void reset()</B></TT>
|
|
<DD>Method to call to reset visitor. Useful for your visitor accumulates
|
|
state during a traversal, and you plan to reuse the visitor.
|
|
To flush that state for the next traversal than call reset() prior
|
|
to each traversal.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="setVisitorType"></A>
|
|
<A NAME="DOC.2.158.7"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void setVisitorType(<!1><A HREF="NodeVisitor.html#DOC.2.158.2">VisitorType</A> type)</B></TT>
|
|
<DD>Set the VisitorType, used to distingush different visitors during
|
|
traversal of the scene, typically used in the Node::traverse() method
|
|
to select which behaviour to use for different types of traversal/visitors
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getVisitorType"></A>
|
|
<A NAME="DOC.2.158.8"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline <!1><A HREF="NodeVisitor.html#DOC.2.158.2">VisitorType</A> getVisitorType() const </B></TT>
|
|
<DD>Get the VisitorType
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="setTraversalNumber"></A>
|
|
<A NAME="DOC.2.158.9"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void setTraversalNumber(int fn)</B></TT>
|
|
<DD>Set the traversal number. Typically used to denote the frame count.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getTraversalNumber"></A>
|
|
<A NAME="DOC.2.158.10"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline int getTraversalNumber() const </B></TT>
|
|
<DD>Get the traversal number. Typically used to denote the frame count.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="setFrameStamp"></A>
|
|
<A NAME="DOC.2.158.11"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void setFrameStamp(<!1><A HREF="FrameStamp.html">FrameStamp</A>* fs)</B></TT>
|
|
<DD>Set the FrameStamp that this traversal is assoicated with
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getFrameStamp"></A>
|
|
<A NAME="DOC.2.158.12"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const <!1><A HREF="FrameStamp.html">FrameStamp</A>* getFrameStamp() const </B></TT>
|
|
<DD>Get the FrameStamp that this traversal is assoicated with
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="setTraversalMask"></A>
|
|
<A NAME="DOC.2.158.13"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void setTraversalMask(Node::NodeMask mask)</B></TT>
|
|
<DD>Set the TraversalMask of this NodeVisitor.
|
|
The TraversalMask is used by the NodeVisitor::validNodeMask() method
|
|
to determine whether to operate on a node and its subgraph.
|
|
validNodeMask() is called automaticaly in the Node::accept() method before
|
|
any call to NodeVisitor::apply(), apply() is only ever called if validNodeMask
|
|
returns true. Note, if NodeVisitor::_traversalMask is 0 then all operations
|
|
will be swithced off for all nodes. Whereas setting both _traversalMask and
|
|
_nodeMaskOverride to 0xffffffff will allow a visitor to work on all nodes
|
|
regardless of their own Node::_nodeMask state.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getTraversalMask"></A>
|
|
<A NAME="DOC.2.158.14"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline Node::NodeMask getTraversalMask() const </B></TT>
|
|
<DD>Get the TraversalMask
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="setNodeMaskOverride"></A>
|
|
<A NAME="DOC.2.158.15"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void setNodeMaskOverride(Node::NodeMask mask)</B></TT>
|
|
<DD>Set the NodeMaskOverride mask.
|
|
Used in validNodeMask() to determine whether to operate on a node or its
|
|
subgraph, by OR'ing NodeVisitor::_nodeMaskOverride with the Node's own Node::_nodeMask.
|
|
Typically used to force on nodes which may have
|
|
been switched off by their own Node::_nodeMask.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getNodeMaskOverride"></A>
|
|
<A NAME="DOC.2.158.16"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline Node::NodeMask getNodeMaskOverride() const </B></TT>
|
|
<DD>Get the NodeMaskOverride mask
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="validNodeMask"></A>
|
|
<A NAME="DOC.2.158.17"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline bool validNodeMask(const <!1><A HREF="Node.html">osg::Node</A>& node) const </B></TT>
|
|
<DD>Method to called by Node and its subclass' Node::accept() method, if the result is true
|
|
to be used to cull operations of nodes and their subgraphs.
|
|
Return true if the result of a bit wise and of the NodeVisitor::_traversalMask
|
|
with the bit or between NodeVistor::_nodeMaskOverride and the Node::_nodeMask.
|
|
default values for _traversalMask is 0xffffffff, _nodeMaskOverride is 0x0,
|
|
and osg::Node::_nodeMask is 0xffffffff.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="setTraversalMode"></A>
|
|
<A NAME="DOC.2.158.18"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void setTraversalMode(<!1><A HREF="NodeVisitor.html#DOC.2.158.1">TraversalMode</A> mode)</B></TT>
|
|
<DD>Set the traversal mode for Node::traverse() to use when
|
|
deciding which children of a node to traverse. If a
|
|
NodeVisitor has been attached via setTraverseVisitor()
|
|
and the new mode is not TRAVERSE_VISITOR then the attached
|
|
visitor is detached. Default mode is TRAVERSE_NONE.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getTraversalMode"></A>
|
|
<A NAME="DOC.2.158.19"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline <!1><A HREF="NodeVisitor.html#DOC.2.158.1">TraversalMode</A> getTraversalMode() const </B></TT>
|
|
<DD>Get the traversal mode
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="setUserData"></A>
|
|
<A NAME="DOC.2.158.20"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void setUserData(<!1><A HREF="Referenced.html">Referenced</A>* obj)</B></TT>
|
|
<DD>
|
|
Set user data, data must be subclased from Referenced to allow
|
|
automatic memory handling. If you own data isn't directly
|
|
subclassed from Referenced then create and adapter object
|
|
which points to your own objects and handles the memory addressing.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getUserData"></A>
|
|
<A NAME="DOC.2.158.21"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline <!1><A HREF="Referenced.html">Referenced</A>* getUserData()</B></TT>
|
|
<DD>Get user data
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getUserData"></A>
|
|
<A NAME="DOC.2.158.22"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const <!1><A HREF="Referenced.html">Referenced</A>* getUserData() const </B></TT>
|
|
<DD>Get const user data
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="traverse"></A>
|
|
<A NAME="DOC.2.158.23"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void traverse(<!1><A HREF="Node.html">Node</A>& node)</B></TT>
|
|
<DD>Method for handling traversal of a nodes.
|
|
If you intend to use the visitor for actively traversing
|
|
the scene graph then make sure the accept() methods call
|
|
this method unless they handle traversal directly.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="pushOntoNodePath"></A>
|
|
<A NAME="DOC.2.158.24"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void pushOntoNodePath(<!1><A HREF="Node.html">Node</A>* node)</B></TT>
|
|
<DD>Method called by osg::Node::accept() method before
|
|
a call the NodeVisitor::apply(). The back of the list will,
|
|
therefore, be the current node being visited inside the apply(..),
|
|
and the rest of the list will be the parental sequence of nodes
|
|
from the top most node applied down the graph to the current node.
|
|
Note, the user does not typically call pushNodeOnPath() as it
|
|
will be called automatically by the Node::accept() method.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="popFromNodePath"></A>
|
|
<A NAME="DOC.2.158.25"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void popFromNodePath()</B></TT>
|
|
<DD>Method callby osg::Node::accept() method after
|
|
a call the NodeVisitor::apply().
|
|
Note, the user does not typically call pushNodeOnPath() as it
|
|
will be called automatically by the Node::accept() method.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getNodePath"></A>
|
|
<A NAME="DOC.2.158.26"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="NodePath.html">NodePath</A>& getNodePath()</B></TT>
|
|
<DD>Get the non const NodePath from the top most node applied down
|
|
to the current Node being visited
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getNodePath"></A>
|
|
<A NAME="DOC.2.158.27"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>const <!1><A HREF="NodePath.html">NodePath</A>& getNodePath() const </B></TT>
|
|
<DD>Get the const NodePath from the top most node applied down
|
|
to the current Node being visited
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getEyePoint"></A>
|
|
<A NAME="DOC.2.158.28"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual <!1><A HREF="osg.html#DOC.2.262">osg::Vec3</A> getEyePoint() const </B></TT>
|
|
<DD>Get the eye point in local coordinates.
|
|
Note, not all NodeVisitor implement this method, it is mainly cull visitors which will implement.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getDistanceToEyePoint"></A>
|
|
<A NAME="DOC.2.158.29"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual float getDistanceToEyePoint(const <!1><A HREF="osg.html#DOC.2.262">Vec3</A>& , bool ) const </B></TT>
|
|
<DD>Get the distance from a point to the eye point, distance value in local coordinate system.
|
|
Note, not all NodeVisitor implement this method, it is mainly cull visitors which will implement.
|
|
If the getDistianceFromEyePoint(pos) is not implmented than a default value of 0.0 is returned.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getDistanceFromEyePoint"></A>
|
|
<A NAME="DOC.2.158.30"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual float getDistanceFromEyePoint(const <!1><A HREF="osg.html#DOC.2.262">Vec3</A>& , bool ) const </B></TT>
|
|
<DD>Get the distance of a point from the eye point, distance value in the eye coordinate system.
|
|
Note, not all NodeVisitor implement this method, it is mainly cull visitors which will implement.
|
|
If the getDistianceFromEyePoint(pos) is not implmented than a default value of 0.0 is returned.
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.31"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="Node.html">Node</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.32"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="Geode.html">Geode</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.33"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="Billboard.html">Billboard</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.34"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="Group.html">Group</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.35"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="Projection.html">Projection</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.36"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="CoordinateSystemNode.html">CoordinateSystemNode</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.37"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="ClipNode.html">ClipNode</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.38"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="TexGenNode.html">TexGenNode</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.39"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="LightSource.html">LightSource</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.40"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="Transform.html">Transform</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.41"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="MatrixTransform.html">MatrixTransform</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.42"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="PositionAttitudeTransform.html">PositionAttitudeTransform</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.43"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="Switch.html">Switch</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.44"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="Sequence.html">Sequence</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.45"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="LOD.html">LOD</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.46"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="PagedLOD.html">PagedLOD</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.47"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="Impostor.html">Impostor</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.48"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="ClearNode.html">ClearNode</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="apply"></A>
|
|
<A NAME="DOC.2.158.49"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual void apply(<!1><A HREF="OccluderNode.html">OccluderNode</A>& node)</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="setDatabaseRequestHandler"></A>
|
|
<A NAME="DOC.2.158.51"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void setDatabaseRequestHandler(<!1><A HREF="DatabaseRequestHandler.html">DatabaseRequestHandler</A>* handler)</B></TT>
|
|
<DD>Set the handler for database requests
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getDatabaseRequestHandler"></A>
|
|
<A NAME="DOC.2.158.52"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="DatabaseRequestHandler.html">DatabaseRequestHandler</A>* getDatabaseRequestHandler()</B></TT>
|
|
<DD>Get the handler for database requests
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="getDatabaseRequestHandler"></A>
|
|
<A NAME="DOC.2.158.53"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>const <!1><A HREF="DatabaseRequestHandler.html">DatabaseRequestHandler</A>* getDatabaseRequestHandler() const </B></TT>
|
|
<DD>Get the const handler for database requests
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="_visitorType"></A>
|
|
<A NAME="DOC.2.158.54"></A>
|
|
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="NodeVisitor.html#DOC.2.158.2">VisitorType</A> _visitorType</B></TT>
|
|
<DL><DT><DD></DL><P>
|
|
<A NAME="_traversalNumber"></A>
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<A NAME="DOC.2.158.55"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>int _traversalNumber</B></TT>
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<DL><DT><DD></DL><P>
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<A NAME="_frameStamp"></A>
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<A NAME="DOC.2.158.56"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="ref_ptr.html">ref_ptr</A><<!1><A HREF="FrameStamp.html">FrameStamp</A>> _frameStamp</B></TT>
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<DL><DT><DD></DL><P>
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<A NAME="_traversalMode"></A>
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<A NAME="DOC.2.158.57"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="NodeVisitor.html#DOC.2.158.1">TraversalMode</A> _traversalMode</B></TT>
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<DL><DT><DD></DL><P>
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<A NAME="_traversalMask"></A>
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<A NAME="DOC.2.158.58"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>Node::NodeMask _traversalMask</B></TT>
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<DL><DT><DD></DL><P>
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<A NAME="_nodeMaskOverride"></A>
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<A NAME="DOC.2.158.59"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>Node::NodeMask _nodeMaskOverride</B></TT>
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<DL><DT><DD></DL><P>
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<A NAME="_nodePath"></A>
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<A NAME="DOC.2.158.60"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="NodePath.html">NodePath</A> _nodePath</B></TT>
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<DL><DT><DD></DL><P>
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<A NAME="_userData"></A>
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<A NAME="DOC.2.158.61"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="ref_ptr.html">ref_ptr</A><<!1><A HREF="Referenced.html">Referenced</A>> _userData</B></TT>
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<DL><DT><DD></DL><P>
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<A NAME="_databaseRequestHandler"></A>
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<A NAME="DOC.2.158.62"></A>
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<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="ref_ptr.html">ref_ptr</A><<!1><A HREF="DatabaseRequestHandler.html">DatabaseRequestHandler</A>> _databaseRequestHandler</B></TT>
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<DL><DT><DD></DL><P></DL>
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<HR>
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<DL><DT><B>Direct child classes:
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</B><DD><A HREF="CollectOccludersVisitor.html">CollectOccludersVisitor</A><BR>
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</DL>
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<DL><DT><DD></DL><P><P><I><A HREF="index.html">Alphabetic index</A></I> <I><A HREF="HIER.html">HTML hierarchy of classes</A> or <A HREF="HIERjava.html">Java</A></I></P><HR>
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<BR>
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This page was generated with the help of <A HREF="http://www.linuxsupportline.com/~doc++">DOC++</A>.
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