pfiInputXformTrackball problem

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From: Guillaume Moreau (Guillaume.Moreau++at++caor.ensmp.fr)
Date: 04/20/2000 10:19:53

hello,

I am trying to adapt the trackball.c example to a C++ application.
Therefore I am merging pieces of perfly with it. Point is that I want to
use standard X input, and no pfuCollect. my problem is quite easy to
understand : if I do (in C):
pfiInit();
Shared->trackball = pfiCreate2DIXformTrackball(arena);
Shared->tbInput = pfiGetIXformInputCoordPtr(Shared->trackball);

everything is fine, but if i do:
pfiInit();
shared->xformer = new(pfGetSharedArena()) pfiInputXformTrackball;
assert(shared->xformer != NULL);
shared->tbInput = shared->xformer->getInputCoordPtr();
assert(shared->tbInput != NULL);

the second assertion fails. when I read the man page, it seems quite
normal... So my questions are:
- why is the C example running OK ?
- are there any C++ doc or samples ?
- what did I miss ?

pfThanks,

Guillaume 

-- 
Guillaume Moreau                         mailto:moreau++at++caor.ensmp.fr
Equipe Réalité Virtuelle & Réalité Augmentée    http://caor.ensmp.fr
Centre de Robotique                        Tel : (+33) 1 40 51 94 98
Ecole des Mines de Paris                   Fax : (+33) 1 43 26 10 51

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