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[ChrisE]

So, I've got another question (I know--big surprise, right?).

I've got a TransformGroup node with several Shape3Ds attached to it. Sometimes I wish to update both the attached shapes, and the transform. So, what I've done so far is something like:

Code:

TransformGroup tg = (TransformGroup) tgOrig.cloneNode(false);

// setup Shape3Ds and add to group tg
// ...snip...

// add the operation to get this replaced in the correct thread context
getOperationScheduler().scheduleOperation(new replaceTransformGroupSO(toReplace,tg));

// down in the replace group scheduled operation
public void update(long gameTime, long frameTime, TimingMode timingMode)
{
if (this.original != null && this.replacement != null)
{
this.original.getParent().addChild(this.replacement);
this.original.detach();
}
}

Now, this seems to work, except that the cloneNode() function just seems to create a new instance of a TransformGroup, instead of copying over relevant data (such as transforms). Any suggestions on how to do an in-place swap like this?

-Chris

EDIT: The reason I'd like to do a swap instead of directly changing the node's children from a scheduled operation is that I'm accumulating a lot of Scheduled Operations... is this normal, or am I doing something silly and writing (effectively) thread-safe wrappers into my Xith interface?

[ChrisE]

Got the above working. Seems to be a fine way of handling replacements.

However, new problem: I successfully remove nodes from my branch, as they are no longer rendered. However, I'm still seeing them appear in the BranchGroup child table, though they have no parent node. They don't seem to draw.

Is there any way to have Xith verify that the branch group contains children that actually have a parent (set to the BranchGroup)? Any idea what might cause this?

[Marvin Fröhlich]

There's a getRootBranch() method IIRC, and there should be something like isAttached(). Don't remember exactly.

Marvin