Re: [osg-users] Swapping ref_ptr

2010-06-30 Thread Sam Warns 
Hi,
passing a ref_ptr by reference.

This sounds somehow strange to me.

--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=29517#29517





___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Re: [osg-users] Swapping ref_ptr

2010-06-30 Thread Sunil S Nandihalli 
just pass by reference .. I think that should do the trick ..

On Wed, Jun 30, 2010 at 3:04 PM, Sam Warns  wrote:

> Hi,
>
> I am in a situation where I receive a osg::ref_ptr to which I should
> add a Transform Node (or basically prepend it)
>
> Usually the group I receive is in a hierarchy of nodes, so I was thinking
> about getting parents of this group, removing this group as a child and add
> the Transform instead.
>
> But is there a better way?
> Since I actually do not know anything about the parents of the group it is
> also possible that there is no parent yet so the exchange is getting
> difficult.
>
> Now I am wondering if it is possible and safe to swap the inner pointer of
> the ref_ptr. Basically my functions looks like
>
> Code:
>
> void foo (osg::ref_ptr myGroup)
> {
>  // do something
>  osg::ptr_ref mat = new MatrixTransform;
>  // change
>  myGroup.swap(mat);
> }
>
>
>
>
> Which is called from a parent function like
>
> Code:
>
> void parentFoo()
> {
>  osg::ref_ptr myGroup = new osg::Group;
>  foo(myGroup);
>
>  // now I need myGroup to point to MatrixTransform without noticing it
>
> }
>
>
>
>
> Is this going to work?
> I have no compiler on this maschine to test right now so I am just assuming
> and browsing the docs.
>
>
> Thank you!
>
> Cheers,
> Sam
>
> --
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=29515#29515
>
>
>
>
>
> ___
> osg-users mailing list
> osg-users@lists.openscenegraph.org
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

[osg-users] Swapping ref_ptr

2010-06-30 Thread Sam Warns 
Hi,

I am in a situation where I receive a osg::ref_ptr to which I should add 
a Transform Node (or basically prepend it)

Usually the group I receive is in a hierarchy of nodes, so I was thinking about 
getting parents of this group, removing this group as a child and add the 
Transform instead. 

But is there a better way?
Since I actually do not know anything about the parents of the group it is also 
possible that there is no parent yet so the exchange is getting difficult.

Now I am wondering if it is possible and safe to swap the inner pointer of the 
ref_ptr. Basically my functions looks like

Code:

void foo (osg::ref_ptr myGroup)
{
  // do something
 osg::ptr_ref mat = new MatrixTransform;
 // change
 myGroup.swap(mat);
}




Which is called from a parent function like

Code:

void parentFoo()
{
  osg::ref_ptr myGroup = new osg::Group;
  foo(myGroup);

  // now I need myGroup to point to MatrixTransform without noticing it

}




Is this going to work?
I have no compiler on this maschine to test right now so I am just assuming and 
browsing the docs.


Thank you!

Cheers,
Sam

--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=29515#29515





___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org