Sorry, I don't have a simple program that I can send you. My code is
too big and ugly. I believe by begin/end edits are correct, though.
original code:
OSG::beginEditCP(parent_node);
parent_node->addChild(child_node); // Reparent complete
OSG::endEditCP(parent_node);
new code:
// Remove child from original parent, if it has one
OSG::NodePtr cur_parent = child_node->getParent();
if(OSG::NullFC != cur_parent)
{
OSG::beginEditCP(cur_parent);
cur_parent->subChild(child_node);
OSG::endEditCP(cur_parent);
}
OSG::beginEditCP(parent_node);
parent_node->addChild(child_node); // Reparent complete
OSG::endEditCP(parent_node);
On 12/6/05, Dirk Reiners <[EMAIL PROTECTED]> wrote:
>
> Hi Terry,
>
> On Tue, 2005-12-06 at 12:22 -0600, Terry Welsh wrote:
> > I found a nasty gotcha associated with moving nodes around and then
> > sending changes over the network. Since an OSG::Node can only have
> > one parent, if you use Node::addChild(mynode), mynode loses any parent
> > that it had before and gains a new parent.
> >
> > The resulting scene graph looks fine on my local machine, but changes
> > do not propogate correctly to my receiving machine. I end up with two
> > copies of mynode on the receiving machine.
> >
> > This problem goes away if I explicitly remove mynode from its original
> > parent using subChild before adding it to a new parent. Would it be
> > possibly to fix this so that the appropriate changes get transmitted
> > to the receiving machine or should I just be more careful with my
> > code?
>
> What do you do in terms of begin/endEdits? The logic is that you need to
> call begin/end on Nodes that you manipulate (i.e. for addChild the Node
> that the child is added to). Other than that it should work, as addChild
> correctly edits the other Nodes. Do you have a code snippet that
> demonstrates the problem?
>
> Thanks
>
> Dirk
>
>
>
>
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--
Terry Welsh - mogumbo 'at' gmail.com
www.reallyslick.com | www.infiscape.com | www.vrsource.org
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