From f804d7dd8197ab9e0db8f3edb10b5c50fc3f8d6c Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Thu, 20 Sep 2012 11:27:57 +0000
Subject: [PATCH] From Vladimir Cheaev, " I worked with a osg::Constraint and
 found strange part of code: class OSGMANIPULATOR_EXPORT Constraint : public
 osg::Referenced {     public: ...         virtual bool
 constrain(ScaleUniformCommand& command) const     { return
 constrain((MotionCommand&)command); }         virtual bool constrain(const
 Rotate3DCommand& command)         { return
 constrain((MotionCommand&)command); } ...

If i use osgManipulator::Rotate3DCommand then method Rotate3DCommand::accept(const Constraint& constraint) calls Constraint::constrain(MotionCommand&) instead Constraint:: constrain(const Rotate3DCommand&).

If you replace
        virtual bool constrain(const Rotate3DCommand& command)         { return constrain((MotionCommand&)command); }
on to
        virtual bool constrain(Rotate3DCommand& command) const         { return constrain((MotionCommand&)command); }
then all works correctly.
"
---
 include/osgManipulator/Constraint | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/osgManipulator/Constraint b/include/osgManipulator/Constraint
index d6009a88c..f9cad9e54 100644
--- a/include/osgManipulator/Constraint
+++ b/include/osgManipulator/Constraint
@@ -66,7 +66,7 @@ class OSGMANIPULATOR_EXPORT Constraint : public osg::Referenced
         virtual bool constrain(Scale1DCommand& command) const          { return constrain((MotionCommand&)command); }
         virtual bool constrain(Scale2DCommand& command) const          { return constrain((MotionCommand&)command); }
         virtual bool constrain(ScaleUniformCommand& command) const     { return constrain((MotionCommand&)command); }
-        virtual bool constrain(const Rotate3DCommand& command)         { return constrain((MotionCommand&)command); }
+        virtual bool constrain(Rotate3DCommand& command) const         { return constrain((MotionCommand&)command); }
 
 protected: