Sketchpad Where Gaudi used physical laws to speed up his calculation of parametric equations, Ivan Sutherland looked to the processing power of digital computers  . Sutherland created an interactive computer-aided design program called Sketchpad. Using a light pen, users could draw lines and arcs that could be related to each other using constraints. These constraints contained all the essential properties of parametric equations. Users could experiment and explore different designs by altering the parameters of an entity and let Sketchpad do the calculations and redraw the geometry according to the constraints imposed upon it  .
Luigi Moretti's Parametric Architecture We owe to Luigi Moretti the first definition of parametric architecture, the result of studies on the history of architecture, art, and the application of operation research to architectural design. His researches on parametric architecture methods were developed within the Institute for Operations Research and Applied Mathematics Urbanism. On the occasion of an exhibition at the Milan Triennale, he will present various models of stadiums designed according to the principles of parametric architecture . Principles of Luigi Moretti's parametric architecture Rejection of empirical decisions. Assessment of traditional phenomena as objective facts based on the interdependence of expressive, social and technical values. Exact and complete definition of architectural themes. Objective observation of all the conditioning elements (parameters) related to the architectural theme and identification of their quantitative values. Definition of the relationships between the values of the parameters. Indispensability of different skills and scientific methodologies according to the criteria of operational research to define conditioning elements and their quantities. Affirmation of the Architect's freedom in decision and expression, only if it does not affect the characteristics determined by the analytical investigations. Research of architectural forms towards a maximum, therefore definitive, exactness of relationships in their general "structure" .
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Sketchpad Where Gaudi used physical laws to speed up his calculation of parametric equations, Ivan Sutherland looked to the processing power of digital computers
Luigi Moretti's Parametric Architecture
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We owe to Luigi Moretti the first definition of parametric architecture, the result of studies on the history of architecture, art, and the application of operation research to architectural design. His researches on parametric architecture methods were developed within the Institute for Operations Research and Applied Mathematics Urbanism. On the occasion of an exhibition at the Milan Triennale, he will present various models of stadiums designed according to the principles of parametric architecture
R
Sutherland created an interactive computer-aided design program called Sketchpad. Using a light pen, users could draw lines and arcs that could be related to each other using constraints. These constraints contained all the essential properties of parametric equations. Users could experiment and explore different designs by altering the parameters of an entity and let Sketchpad do the calculations and redraw the geometry according to the constraints imposed upon it
Principles of Luigi Moretti's parametric architecture
A
Rejection of empirical decisions. Assessment of traditional phenomena as objective facts based on the interdependence of expressive, social and technical values. Exact and complete definition of architectural themes. Objective observation of all the conditioning elements (parameters) related to the architectural theme and identification of their quantitative values. Definition of the relationships between the values of the parameters. Indispensability of different skills and scientific methodologies according to the criteria of operational research to define conditioning elements and their quantities. Affirmation of the Architect's freedom in decision and expression, only if it does not affect the characteristics determined by the analytical investigations. Research of architectural forms towards a maximum, therefore definitive, exactness of relationships in their general "structure"