[ODE] Gravity

Pierre Terdiman p.terdiman at wanadoo.fr
Tue May 13 05:11:02 2003


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Probably because of scaling - your meshes are too big.

  ----- Original Message -----=20
  From: Charles Ingalls=20
  To: ode@q12.org=20
  Sent: Tuesday, May 13, 2003 4:15 AM
  Subject: [ODE] Gravity


  Hi,
  =20
  If I set dWorldSetGravity (dWorldID, 0, 0, -9.8);
  with a timestep of 0.01,
  the objects are falling very slowly...(like on the moon).
  =20
  Could someone explain me why ???
  This -9.8 means 9.8 m/s/s isn't it ?
  =20
  Thanks,
  =20
  Charles.

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<META content=3D"MSHTML 5.00.3502.5390" name=3DGENERATOR>
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<DIV><FONT face=3DArial size=3D2>Probably because of scaling - =
your&nbsp;meshes are=20
too big.</FONT></DIV>
<DIV>&nbsp;</DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A href=3D"mailto:charles.ingalls@freesbee.fr"=20
  title=3Dcharles.ingalls@freesbee.fr>Charles Ingalls</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
href=3D"mailto:ode@q12.org"=20
  title=3Dode@q12.org>ode@q12.org</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, May 13, 2003 =
4:15 AM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [ODE] Gravity</DIV>
  <DIV><BR></DIV>
  <DIV><FONT face=3DArial size=3D2>Hi,</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial><FONT size=3D2>If I set <FONT=20
  color=3D#0000ff>dWorldSetGravity (dWorldID,=20
  0,&nbsp;0,&nbsp;-9.8);</FONT></FONT></FONT></DIV>
  <DIV><FONT color=3D#0000ff face=3DArial size=3D2><FONT =
color=3D#000000>with a</FONT>=20
  <FONT color=3D#000000>timestep of 0.01,</FONT></FONT></DIV>
  <DIV><FONT face=3DArial size=3D2>the objects are falling very =
slowly...(like on=20
  the moon).</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>Could someone explain me why =
???</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2>This -9.8 means 9.8 m/s/s isn't it =
?</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>Thanks,</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial =
size=3D2>Charles.</FONT></DIV></BLOCKQUOTE></BODY></HTML>

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