Before the Algorithm

Abstract

This thesis investigates the role of architectural drawings as instruments of parametric control during the early period of digital architecture in the 1990s. Focusing on the freshH2Oexpo (Water Pavilion) designed by Lars Spuybroek and the Rotterdam-based firm NOX between 1993 and 1997, the study challenges the dominant historical narrative that defines parametric architecture exclusively through the lens of post-2000 computational software like Grasshopper or Catia. At the time of the pavilion's design, early animation and industrial software could generate complex, seamless topological surfaces but lacked associative capabilities, meaning that changing one geometric element did not automatically update dependent parts of the model. To fill this technological gap, NOX externalized geometric rules and dependencies directly into a highly integrated, manual drawing system. Utilizing primary source materials from the archive collection AP173 and a firsthand interview with Spuybroek, this paper analyzes three distinct document types that functioned collectively as a non-computational parametric model: a series of nineteen transverse sections capturing the gradual rotation and scaling of an ellipsoidal profile, color-coded systems diagrams enforcing topological and programmatic sequences, and a heights diagram mapping a continuously shifting ground level. Furthermore, the thesis examines how this drawing system asserted absolute technical and legal authority over the construction process, translation errors, and material constraints. Instead of relying on a three-dimensional digital model, contractors were provided with precise two-dimensional coordinate data derived from the drawings. This data was input into a Total Station on-site to guide lasers for exact component placement, meaning that un-drawn material behaviors-such as the dramatic torquing of secondary steel C-profiles-emerged logically from the rules established between adjacent sections. Ultimately, this study demonstrates that parametric reasoning-defined by relational variables rather than computational automaticity-preceded the software designed to automate it. By recovering this displaced intelligence, the thesis offers an alternative historical framing that roots the origins of parametric design in rule-based drawing practices, highlighting a distinct philosophy where form is negotiated through discrete architectural decisions rather than automated continuous variation.