fe64942c54
PositionAttitudeTransform, removed the equivialnt callbacks once found in these transform classes. Changed the NodeCallback class so its derived from osg::Object instead of osg::Referenced to allow it to be saved out in the .osg format. Added support for Update and Cull callbacks into the .osg file format. Added support for AnimationPathCallback into the .osg file format.
99 lines
2.4 KiB
C++
99 lines
2.4 KiB
C++
#include <osg/NodeVisitor>
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#include <osg/Transform>
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#include <stdlib.h>
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using namespace osg;
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NodeVisitor::NodeVisitor(TraversalMode tm)
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{
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_visitorType = NODE_VISITOR;
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_traversalNumber = -1;
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_traversalMode = tm;
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_traversalMask = 0xffffffff;
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_nodeMaskOverride = 0x0;
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}
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NodeVisitor::NodeVisitor(VisitorType type,TraversalMode tm)
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{
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_visitorType = type;
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_traversalNumber = -1;
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_traversalMode = tm;
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_traversalMask = 0xffffffff;
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_nodeMaskOverride = 0x0;
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}
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NodeVisitor::~NodeVisitor()
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{
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// if (_traversalVisitor) detach from _traversalVisitor;
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}
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class TransformVisitor : public NodeVisitor
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{
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public:
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enum CoordMode
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{
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WORLD_TO_LOCAL,
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LOCAL_TO_WORLD
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};
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CoordMode _coordMode;
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Matrix& _matrix;
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NodeVisitor* _nodeVisitor;
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TransformVisitor(Matrix& matrix,CoordMode coordMode,NodeVisitor* nv):
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NodeVisitor(),
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_coordMode(coordMode),
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_matrix(matrix),
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_nodeVisitor(nv)
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{}
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virtual void apply(Transform& transform)
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{
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if (_coordMode==LOCAL_TO_WORLD)
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{
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osg::Matrix localToWorldMat;
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transform.getLocalToWorldMatrix(localToWorldMat,_nodeVisitor);
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_matrix.preMult(localToWorldMat);
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}
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else // worldToLocal
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{
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osg::Matrix worldToLocalMat;
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transform.getWorldToLocalMatrix(worldToLocalMat,_nodeVisitor);
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_matrix.postMult(worldToLocalMat);
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}
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}
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};
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bool NodeVisitor::getLocalToWorldMatrix(Matrix& matrix, Node* node)
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{
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TransformVisitor tv(matrix,TransformVisitor::LOCAL_TO_WORLD,this);
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for(NodePath::iterator itr=_nodePath.begin();
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itr!=_nodePath.end();
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++itr)
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{
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if (*itr==node) return true; // don't account for matrix attached to specified node
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(*itr)->accept(tv);
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}
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return true;
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}
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bool NodeVisitor::getWorldToLocalMatrix(Matrix& matrix, Node* node)
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{
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TransformVisitor tv(matrix,TransformVisitor::WORLD_TO_LOCAL,this);
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for(NodePath::iterator itr=_nodePath.begin();
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itr!=_nodePath.end();
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++itr)
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{
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if (*itr==node) return true; // don't account for matrix attached to specified node
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(*itr)->accept(tv);
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}
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return true;
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}
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