[ODE] Creating a spinning object unaffected by collisions
Keith Johnston
kjohnston at iname.com
Sat Jan 11 09:59:02 2003
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What's the best way to create a spinning object that doesn't get slowed
down by things colliding with it? I tried the one-way collision
technique - but the interpenetration problem cropped up. If I have the
collision go both ways - then when an object collides with the spinning
object, the object slows down.
Also - it seems I have to attach two hinges to the spinning object to
keep it from wobbling. Is that expected behavior? At first I thought I
would just need a single hinge.
Finally, I tried using dJointSetHingeParam and the dParamVel and
dParamFMax to get the object rotating at a fixed speed. Setting these
paramaters didn't seem to do anything though. Are they supported on the
hinge joint?
Thanks,
Keith
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<DIV><SPAN class=3D979095216-11012003><FONT face=3DArial size=3D2>What's =
the best way=20
to create a spinning object that doesn't get slowed down by things =
colliding=20
with it? I tried the one-way collision technique - but the=20
interpenetration problem cropped up. If I have the collision go =
both ways=20
- then when an object collides with the spinning object, the object =
slows=20
down.</FONT></SPAN></DIV>
<DIV><SPAN class=3D979095216-11012003><FONT face=3DArial=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D979095216-11012003><FONT face=3DArial size=3D2>Also - =
it seems I=20
have to attach two hinges to the spinning object to keep it from =
wobbling. =20
Is that expected behavior? At first I thought I would just need a =
single=20
hinge.</FONT></SPAN></DIV>
<DIV><SPAN class=3D979095216-11012003><FONT face=3DArial=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D979095216-11012003><FONT face=3DArial =
size=3D2>Finally, I tried=20
using dJointSetHingeParam and the dParamVel and dParamFMax to get the =
object=20
rotating at a fixed speed. Setting these paramaters didn't seem to =
do=20
anything though. Are they supported on the hinge=20
joint?</FONT></SPAN></DIV>
<DIV><SPAN class=3D979095216-11012003><FONT face=3DArial=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D979095216-11012003><FONT face=3DArial=20
size=3D2>Thanks,</FONT></SPAN></DIV>
<DIV><SPAN class=3D979095216-11012003><FONT face=3DArial=20
size=3D2>Keith</FONT></SPAN></DIV></BODY></HTML>
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