Avoid using the standard SO_ENGINE_CONSTRUCTOR macro for the SoInterpolate superclass, as this could lead to a few minor problems with the instance counting.
Avoid using the standard SO_ENGINE_CONSTRUCTOR macro for the
SoInterpolate superclass, as this could lead to a few minor problems
with the instance counting.

Alexpux/Coin3D,Alexpux/Coin3D,Alexpux/Coin3D,Alexpux/Coin3D