[ODE] Contact Joints
DjArcas
djarcas at hotmail.com
Wed Jul 9 12:45:02 2003
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I'm trying to have a surface that's hard, so when a car hits it, it =
doesn't bounce off. Ideally, I'd want the car to align itself with the =
wall.... but my current problem is that if a car hits the wall at speed, =
ODE tends to throw a wobbly - either QNAN or the car spinning off =
through the world. I'm not sure quite what sort of number to put into my =
contact joints - does anyone have any input on this?
contact[i].surface.mode =3D dContactSlip1 | dContactApprox1 | =
dContactMu2 |dContactSlip1| dContactSlip2 | dContactSoftERP | =
dContactSoftCFM;
contact[i].surface.soft_erp =3D 0.85f;
contact[i].surface.soft_cfm =3D 0.05f;
contact[i].surface.mu =3D 0.901f;
contact[i].surface.mu2 =3D 0.901f;
contact[i].surface.slip1 =3D 9.0301;
contact[i].surface.slip2 =3D 9.0301;
Adam
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<DIV><FONT face=3DArial size=3D2>I'm trying to have a surface that's =
hard, so when a=20
car hits it, it doesn't bounce off. Ideally, I'd want the car to align =
itself=20
with the wall.... but my current problem is that if a car hits the wall =
at=20
speed, ODE tends to throw a wobbly - either QNAN or the car spinning off =
through=20
the world. I'm not sure quite what sort of number to put into my contact =
joints=20
- does anyone have any input on this?</FONT></DIV>
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<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV>
<P><FONT color=3D#808080>contact</FONT>[<FONT =
color=3D#808080>i</FONT>].<FONT=20
color=3D#808080>surface</FONT>.<FONT color=3D#808080>mode</FONT> =3D =
<FONT=20
color=3D#a000a0>dContactSlip1</FONT> | <FONT =
color=3D#a000a0>dContactApprox1</FONT>=20
| <FONT color=3D#a000a0>dContactMu2</FONT> |<FONT=20
color=3D#a000a0>dContactSlip1</FONT>| <FONT =
color=3D#a000a0>dContactSlip2</FONT> |=20
<FONT color=3D#a000a0>dContactSoftERP</FONT> | <FONT=20
color=3D#a000a0>dContactSoftCFM</FONT>;</P>
<P><FONT color=3D#808080>contact</FONT>[<FONT =
color=3D#808080>i</FONT>].<FONT=20
color=3D#808080>surface</FONT>.<FONT color=3D#808080>soft_erp</FONT> =3D =
0.85f;</P>
<P><FONT color=3D#808080>contact</FONT>[<FONT =
color=3D#808080>i</FONT>].<FONT=20
color=3D#808080>surface</FONT>.<FONT color=3D#808080>soft_cfm</FONT> =3D =
0.05f;</P>
<P><FONT color=3D#808080>contact</FONT>[<FONT =
color=3D#808080>i</FONT>].<FONT=20
color=3D#808080>surface</FONT>.<FONT color=3D#808080>mu</FONT> =3D =
0.901f;</P>
<P><FONT color=3D#808080>contact</FONT>[<FONT =
color=3D#808080>i</FONT>].<FONT=20
color=3D#808080>surface</FONT>.<FONT color=3D#808080>mu2</FONT> =3D =
0.901f;</P>
<P><FONT color=3D#808080>contact</FONT>[<FONT =
color=3D#808080>i</FONT>].<FONT=20
color=3D#808080>surface</FONT>.<FONT color=3D#808080>slip1</FONT> =3D =
9.0301;</P>
<P><FONT color=3D#808080>contact</FONT>[<FONT =
color=3D#808080>i</FONT>].<FONT=20
color=3D#808080>surface</FONT>.<FONT color=3D#808080>slip2</FONT> =3D =
9.0301;</P>
<P> </P>
<P><FONT face=3DArial size=3D2>Adam</FONT></P></DIV></BODY></HTML>
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