InvalidateWorldConversionMatrices()

/*!
  Invalidates world conversion matrices.
*/
void
SoDragger::invalidateWorldConversionMatrices() 
{
  if (PRIVATE(this)->draggercache)
  {
    SbMatrix m1 = PRIVATE(this)->draggercache->draggerToWorld;
    m1 = SbMatrix::identity();
    SbMatrix m2 = PRIVATE(this)->draggercache->worldToDragger;
    m2 = SbMatrix::identity();
  }
}