[ODE] dCylinder that's Z axis aligned?

[Olivier Michel]

Hello Michael,

To answer your question first, I am not aware of a Z axis aligned 
version of dCylinder. I don't know if there are any standards with 
cylinder orientation, but I liked the dCylinder implementation of 
Konstantin Slipchenko because it matches the VRML1, VRML2 and 
OpenInventor specifications for cylinder orientation (as well as the 
specs of my app). So, I believe that it would be a good thing to keep 
this Y axis aligned orientation for the dCylinder, as is seems to me to 
be pretty standard (however, I am not an expert in 3D file formats). 
However, it's not a big deal to rotate the cylinder if necessary to 
change its orientation axis... (that's what I initially did when I was 
using dCCylinders). Another alternative would be to allow three types of 
Cylinders, as it is the case with the dMassSetCylinder (dMass *m, dReal 
density, int direction, dReal radius, dReal length) function where 
direction define the orientation axis, but would require some additional 
coding...

Just my 0.02 € on dCylinder...

-Olivier

Michael Bailey wrote:

> Hi All,
> Does anyone have a version dCylinder that's Z axis aligned? The Y 
> version is playing havok (no pun intended) with my code. My code swaps 
> between Capped Cylinder and dCylinder it would be great if I had a 
> version that worked the same way as ODE's Capped Cylinder.
> I'd guess before Russ makes this part of ODE it will be corrected so 
> it works the same way? Any comments?
> Mike