pfiv loader

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Anita Kishore (kishore++at++electrogig.com)
Fri, 23 Feb 1996 15:26:41 -0800

I am not able to prevent a particular pfSwitch node from being cleaned
up by the .iv loader. I have the pfiv.c++ that came with Performer2.0, a151.

In the routine "loadIv" of pfiv.c++, the following calls are made by the loader
towards the end:

    if (DoFlatten)
    {
        result = pfdFreezeTransforms(result, NULL);
        result->flatten(0);
    }

    if (DoClean)
        result = pfdCleanTree(result, NULL);

    if (result != NULL)
        result->setName(file);

The pfSwitch that I am interested in has 1 child. According to the man pages
of pfdCleanTree, the switch shouldn't be removed if it has atleast one child.
I have checked this by putting printfs after pfdFreezeTransforms, pfdCleanTree
and result->setName steps. The pfSwitch exists after pfdFreezeTransforms, and
pfdCleanTree. But is no longer there after result->setName. I used result->find
to check this. I have also tried by giving my own function to pfdCleanTree
which returns TRUE for all nodes except the one pfSwitch that I want. But I see
the same incorrect behaviour even then. If I comment the step
"result->setName", then it is OK.

What is going on? Any one?

thanks for any input

-anita

------------------------------------------------------------------------
Anita Kishore
kishore++at++electrogig.com
------------------------------------------------------------------------

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