Published 2025-12-23
Keywords
- Survey,
- Measurement,
- Geometry,
- Guarini,
- Modo di misurare le fabriche
How to Cite
Copyright (c) 2025 Roberta Spallone

This work is licensed under a Creative Commons Attribution 4.0 International License.
Abstract
Between the 16th and 17th centuries, intellectuals, mathematicians, and military engineers wrote treatises dedicated to the measurement of architecture and fortifications, while the practice of surveying was considered almost a profession.
The Modo di misurare le fabriche (1674) by Guarino Guarini responds to the need for expeditious methods for measuring architectural elements in buildings under construction during the second expansion of Baroque Turin. Dedicated to the measurement of surfaces and volumes, unlike other texts, the treatise devotes very little space to the description of surveying techniques. The work stands out for its absolute novelty in the treatise landscape: it refers, in fact, to the construction phase of the architectural process.
In this essay, new considerations are developed on the relationships between arithmetic, geometry, and measurements, to highlight their connections to the construction of buildings.
The analysis carried out highlights the need to read Guarini's writings on architecture as a complementary system of highly integrated knowledge. In particular, the link between geometry and architecture, intrinsic to Guarini's treatises, is expressed in Modo di misurare le fabriche through the concept of measurement.
References
- M.G. Bevilacqua, R. Spallone, Composed Graphic Scales in the European Military Treatises and Manuals from the 17th to the 19th Centuries, in L. Hermida González, J.P. Xavier, I. Pernas Alonso, C. Losada Pérez, Graphic Horizons. EGA, Springer, Cham 2024, pp. 180-189.
- C. Bianchini, La scienza della rappresentazione nella concezione di Guarino Guarini. Gangemi, Roma 2008.
- J. Calvo-López, Stereotomy, Birkhäuser, Basel 2020.
- M. Docci, D. Maestri, Storia del rilevamento architettonico e urbano, Laterza, Roma- Bari 1993.
- G. Guarini, Euclides adauctus et methodicus, matematicaque universalis, Typis Bartolomaei Zapatae, Torino 1671.
- G. Guarini, Modo di misurare le fabriche, Appresso gl’Heredi di Carlo Gianelli, Torino 1674.
- G. Guarini, Trattato di fortificatione, che hora si usa in Fiandra, Francia, et Italia; composto in ossequio del sereniss. principe Lodovico Giulio cavagliere di Savoia. Appresso gl’Heredi di Carlo Gianelli, Torino 1676.
- G. Guarini, Architettura civile, Appresso Gianfrancesco Mairesse, Torino 1737.
- H.A. Meek, Guarino Guarini and his architecture, Yale University Press, New Haven and London 1988.
- H.A. Millon, La geometria nel linguaggio architettonico del Guarini, in Guarino Guarini e l’internazionalità del Barocco, Accademia delle Scienze, Torino 1970, vol. 2, pp. 35-58.
- C.S. Roero, Guarino Guarini and Universal Mathematics, in Nexus Network Journal, 2009, 11, pp. 415–439.
- A. Scotti Tosini, Testo e immagini nell’Architettura civile e nelle opere teoriche di Guarini, in G. Dardanello, S. Klaiber, H. A. Millon, Guarino Guarini, Allemandi, Torino 2006, pp. 89-105.
- R. Spallone, Rappresentazione e progetto. La formalizzazione delle convenzioni del disegno architettonico, Edizioni dell’Orso, Torino 2012.
- R. Spallone, Geometry, Arithmetic, Architecture. Calculation Methods for Vault Surfaces in the Modo di Misurare le Fabriche by Guarini, in L. Cocchiarella, ICGG 2018 - Proceedings of the 18th International Conference on Geometry and Graphics, Birkhäuser-Springer, Cham, Switzerland 2019, pp. 2108-2119.
- R. Spallone, Geometry of vaulted systems in the treatises by Guarino Guarini, in Revista de Expresión Gráfica en la Edificación, 2019, 11, pp. 74-88.
- R. Spallone, Lunette Vaults in Guarini’s Work. Digital Models between Architettura Civile and Modo di Misurare le Fabriche, in diségno, 1, 4, 2019, pp. 91–102.
- R. Spallone, M. Vitali, Star-shaped and Planterian Vaults in the Baroque Atria of Turin / Volte stellari e Planteriane negli atri barocchi
- in Torino, Aracne, Ariccia, pp. 85-148.
- B. Tavassi La Greca, La posizione del Guarini in rapporto alla cultura filosofica del tempo, Id. (a cura di) G. Guarini, Architettura Civile, Il Polifilo, Milano 1968, pp. 439-459.
- L. Vagnetti, La teoria del rilevamento architettonico in Guarino Guarini, in Guarino Guarini e l’internazionalità del Barocco, t. I, Accademia delle Scienze, Torino 1970, pp. 497-511.
