From Cedric Pinson, Store the linkvisitor to be able to configure it by user, like changing the nodemaskoverride, or use a custom LinkVisitor

include/osgAnimation/AnimationManagerBase

@@ -1,5 +1,5 @@
 /*  -*-c++-*- 
- *  Copyright (C) 2008 Cedric Pinson <mornifle@plopbyte.net>
+ *  Copyright (C) 2008 Cedric Pinson <cedric.pinson@plopbyte.net>
  *
  * This library is open source and may be redistributed and/or modified under  
  * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
@@ -15,6 +15,7 @@
 #ifndef OSGANIMATION_ANIMATION_MANAGER_BASE_H
 #define OSGANIMATION_ANIMATION_MANAGER_BASE_H
 
+#include <osgAnimation/LinkVisitor>
 #include <osgAnimation/Animation>
 #include <osgAnimation/Export>
 #include <osg/FrameStamp>
@@ -46,8 +47,12 @@ namespace osgAnimation
         void clearTargets();
         void normalizeTargets();
 
+        LinkVisitor* getOrCreateLinkVisitor();
+        void setLinkVisitor(LinkVisitor*);
+
     protected:
 
+        osg::ref_ptr<LinkVisitor> _linker;
         AnimationList _animations;
         TargetSet _targets;
         bool _needToLink;

include/osgAnimation/LinkVisitor

@@ -1,5 +1,5 @@
 /*  -*-c++-*- 
- *  Copyright (C) 2008 Cedric Pinson <mornifle@plopbyte.net>
+ *  Copyright (C) 2008 Cedric Pinson <cedric.pinson@plopbyte.net>
  *
  * This library is open source and may be redistributed and/or modified under  
  * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
@@ -17,36 +17,28 @@
 
 #include <osg/NodeVisitor>
 #include <osgAnimation/Animation>
-#include <osgAnimation/UpdateCallback>
 
 namespace osgAnimation 
 {
-
-    struct LinkVisitor : public osg::NodeVisitor
+    /** This class is instancied by the AnimationManagerBase, it will link animation target to updatecallback that have the same name
+     */
+    class OSGANIMATION_EXPORT LinkVisitor : public osg::NodeVisitor
     {
+    public:
+        LinkVisitor();
+
+        META_NodeVisitor("osgAnimation","LinkVisitor");
+
+        void apply(osg::Node& node);
+        AnimationList& getAnimationList();
+        void reset();
+
+    protected:
+        // animation list to link
         AnimationList _animations;
+
+        // number of success link done
         unsigned int _nbLinkedTarget;
-        
-        LinkVisitor(Animation* animation) : osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) { _animations.push_back(animation); _nbLinkedTarget = 0;}
-        LinkVisitor(const AnimationList& animations) : osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) { _animations = animations; _nbLinkedTarget = 0;}
-
-        META_NodeVisitor("osgAnimation","LinkVisitor")
-
-        void apply(osg::Node& node)
-        {
-            osgAnimation::AnimationUpdateCallback* cb = dynamic_cast<osgAnimation::AnimationUpdateCallback*>(node.getUpdateCallback());
-            if (cb) 
-            {
-                int result = 0;
-                for (int i = 0; i < (int)_animations.size(); i++)
-                {
-                    result += cb->link(_animations[i].get());
-                    _nbLinkedTarget += result;
-                }
-                std::cout << "LinkVisitor links " << result << " for \"" << cb->getName() << '"' << std::endl;
-            }
-            traverse(node);
-        }
     };
 
 }

src/osgAnimation/AnimationManagerBase.cpp

@@ -95,11 +95,25 @@ void AnimationManagerBase::registerAnimation (Animation* animation)
 bool AnimationManagerBase::needToLink() const { return _needToLink; }
 
 
+void AnimationManagerBase::setLinkVisitor(LinkVisitor* visitor)
+{
+    _linker = visitor;
+}
+
+LinkVisitor* AnimationManagerBase::getOrCreateLinkVisitor()
+{
+    if (!_linker.valid())
+        _linker = new LinkVisitor;
+    return _linker.get();
+}
 
 void AnimationManagerBase::link(osg::Node* subgraph)
 {
-    LinkVisitor linker(_animations);
-    subgraph->accept(linker);
+    LinkVisitor* linker = getOrCreateLinkVisitor();
+    linker->getAnimationList().clear();
+    linker->getAnimationList() = _animations;
+
+    subgraph->accept(*linker);
     _needToLink = false;
     buildTargetReference();
 }

src/osgAnimation/CMakeLists.txt

@@ -54,6 +54,7 @@ ADD_LIBRARY(${LIB_NAME}
     BasicAnimationManager.cpp
     Bone.cpp
     Channel.cpp
+    LinkVisitor.cpp
     MorphGeometry.cpp
     RigGeometry.cpp
     Skeleton.cpp

src/osgAnimation/LinkVisitor.cpp

@@ -0,0 +1,50 @@
+/*  -*-c++-*- 
+ *  Copyright (C) 2009 Cedric Pinson <cedric.pinson@plopbyte.net>
+ *
+ * This library is open source and may be redistributed and/or modified under  
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
+ * (at your option) any later version.  The full license is in LICENSE file
+ * included with this distribution, and on the openscenegraph.org website.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * OpenSceneGraph Public License for more details.
+*/
+
+#include <osgAnimation/LinkVisitor>
+#include <osgAnimation/UpdateCallback>
+#include <osg/Notify>
+
+using namespace osgAnimation;
+
+LinkVisitor::LinkVisitor() : osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) 
+{
+    _nbLinkedTarget = 0;
+}
+
+void LinkVisitor::reset()
+{
+    _nbLinkedTarget = 0;
+}
+
+AnimationList& LinkVisitor::getAnimationList()
+{
+    return _animations;
+}
+
+void LinkVisitor::apply(osg::Node& node)
+{
+    osgAnimation::AnimationUpdateCallback* cb = dynamic_cast<osgAnimation::AnimationUpdateCallback*>(node.getUpdateCallback());
+    if (cb) 
+    {
+        int result = 0;
+        for (int i = 0; i < (int)_animations.size(); i++)
+        {
+            result += cb->link(_animations[i].get());
+            _nbLinkedTarget += result;
+        }
+        osg::notify(osg::NOTICE) << "LinkVisitor links " << result << " for \"" << cb->getName() << '"' << std::endl;
+    }
+    traverse(node);
+}