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Offline shovemedia

Senior Newbie





« Posted 2004-06-23 17:46:20 »


this ought to be *extremely* easy, but...

I've created a simple sphere in an environment with a little gravity.
I also have a dPlane which i use as the floor (i've also tried a large box).

No matter what settings i use (stepSize, surfaceMu, object densities, etc),
the sphere either falls through the floor immediately, or
comes to rest, stays completely still for a few seconds, and
then continues as if the floor has disappeared.

What gives? The truly baffling thing is that if I trace out the
position values every step, they're constant for many many iterations
and then all-of-a-sudden start changing again. Bizzare!

source available by request -- but this has GOT to be a common issue.
Offline William Denniss

JGO Coder


Projects: 2


Fire at will


« Reply #1 - Posted 2004-06-25 20:55:32 »

try setting the mass of the body after you add a geom to it - or vice versa.

The order of operations in ODE and therefore Odejava DOES matter!  I will be working to improve the current situation, I have had this problem myself.

If this doesn't work please post a code snippet of the object creation.

Will.

Offline shovemedia

Senior Newbie





« Reply #2 - Posted 2004-06-28 10:55:19 »

turned out i was using an old DLL.

DOH!

thanks -- i'm moving along fairly smoothly now -- odejava is the heat.
:j
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Offline William Denniss

JGO Coder


Projects: 2


Fire at will


« Reply #3 - Posted 2004-07-01 00:39:34 »

glad you found the cause Smiley

Will.

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