This research is a work in progress in the development of parametric systems for modeling of complex shapes. The research takes on the fundamental rules for form generation of column knots of the Expiatory Temple of the Sagrada Familia in Barcelona. Designed by the Spanish Architect, Antonio Gaudi, the forms of the Sagrada Familia represent a synthesis of manipulation of simple geometrical rules and the use of basic procedures which result in a rich language with no precedents in architecture.