Hi,
On Thu, 2004-09-02 at 01:48, shailesh kumar wrote:
> HI
> I am using OpenSGFunctors to traverse a scenegraph .
> my code is like this :
>
> Action::ResultE myfunction(NodePtr& node,UInt32 mask)
> {
> /*.....................
> */
> return Action::Continue;
> }
>
> void setAllNodesVisible(NodePtr nptr,UInt32 mask){
> traverse(nptr,
> osgTypedFunctionFunctor2CPtrRef<Action::ResultE,
> NodePtr ,UInt32>enterSetVisible));
>
> }
>
> But I am getting a compilation error :
> error C2665: 'osg::traverse' : none of the 4 overloads can convert parameter
> 2 from type 'osg::TypedFunctionFunctor2<RetT,CallArgT,ArgsT,SizeTraitsT>'
> with
> [
> RetT=osg::Action::ResultE,
> CallArgT=osg::CPtrRefCallArg<osg::NodePtr>,
> ArgsT=osg::ArgsCollector<osg::UInt32>,
> SizeTraitsT=osg::DefaultFunctorSizeTraits
> ]
>
> In the tutorials it is written that : a functor is created like this -
> osgTypedFunctionFunctorXCPtrRef<returnType, Argument1, Argument2, ...,
> ArgumentX>(functionName)
>
> and I am doing the same thing .
yes and the error is that there is no traverse function to match your
arguments. Your functor is ok but is has the wrong signature to be
used with traverse.
The signature used for the one call traverse functions is
Action::ResultE (*)(NodePtr &);
the separate enter / leave versions need
Action::ResultE (*)(NodePtr & ); // for enter
Action::ResultE (*)(NodePtr &, Action::ResultE); // for leave
but your signature is
Action::ResultE (*)(NodePtr&, UInt32);
hence the error you see.
there is a way to get a state into the traversals. I'll try to setup (or
find) a simple example for this and send it around.
regards,
gerrit
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