[openvrml-develop] Rotation with "complex" axis problem in VRML

[Eric C. <eri...@c-...>]

Hi,

I don't know if it's the correct mailing list but anyway. I found a 
strange behavior of the parser when parsing rotation axis in VRML in 
some cases.

/Transform
{
   rotation 0.55735 0.55735 0.55735 1.571
    children []
}
/
Looking forward, I found that the axis for the rotation is currently 
initialized like this (in /Vrml97Parser.cpp line 3536/) :
/
x = floatValue();
y = floatValue();
z = floatValue();
angle = floatValue();

r.x(x);
r.y(y);
r.z(z);
r.angle(angle);/


The problem is that for each call of r.x(), r.y(),r.z(), the axis is 
renormalized. So, I think it should be fixed using this new code :
/
x = floatValue();
y = floatValue();
z = floatValue();
angle = floatValue();

r.axis(vec3f(x,y,z).normalize());
r.angle(angle);/

At the same time, we save 2 normalizations!
Let me know if I'am right or not and you will be able to fixe it.

Regards,

Eric