"Mike Miller" <mil### [at] gmailcom> wrote:
> "Samuel B." <stb### [at] hotmailcom> wrote:
> > "Samuel B." <stb### [at] hotmailcom> wrote:
> > > You know, I think the solution might be quite easy since those values seem to be
> > > angles in radians. Try converting the last three values to degrees like so:
> > >
> > > #declare Rotation = rota...
> >
> > Oops, that should read as:
> >  #declare Rotation = <0.707107, 0.707107, 3.141593> / pi * 180;
>
> Thanks, I'll give that a shot. [...]

Don't bother... it looks like was wrong. Check out this page:
https://edutechwiki.unige.ch/en/X3D_grouping_and_transforms

Here's the relevant bit:

"3.2 Rotations

Rotations are more difficult to understand, since it is possible to define any
arbitrary rotation axis.

rotation = 'x y z angle'
    x y z defines the rotation axis, angle is the amount of roation in radians
(i.e. 180 degrees = Pi)"

So, the first three numbers are the axis of rotation, and the fourth is the
amount of rotation in radians. The docs go on to give some tips but, if I'm not
mistaken, I think you can just plug the numbers directly into the
Axis_Rotate_Trans() macro in transforms.inc, making sure to do a radian->degree
conversion for the 4th value.

Sam

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