calculateMassInfo method
Calculate the mass information of the shape.
Implementation
@override
void calculateMassInfo(MassInfo out){
double rsq = radius * radius;
double mass = math.pi * rsq * height * density;
double inertiaXZ = ( ( 0.25 * rsq ) + ( 0.0833 * height * height ) ) * mass;
double inertiaY = 0.5 * rsq;
out.mass = mass;
out.inertia.set( inertiaXZ, 0, 0, 0, inertiaY, 0, 0, 0, inertiaXZ );
}