The first digitization systems successfully used in curves with origin in mathematical calculations or experimental tests proved useless when they were the result of heuristic methods developed under aesthetic criteria. Renault engineer Pierre Bezier and Citroen engineer Paul de Casteljau found the solution by focusing on the period of ideation of shapes and not on their subsequent translation and integration into the digital domain, studying the working methods of designers and incorporating in the mathematical definition of their curves the own actions of drawing, understood as basic instrumental support in creative processes. This article traces and analyzes the strong relationship between Bezier’s original approach and the procedures driving the manual stroke as the main reason for the consolidation of his graphic proposal as the most effective model for the hand drawing of digital curves and its inclusion since that time and to the present day in the software used by architects.

中文翻译：

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第一个数字曲线定义中的手绘

最初在数学计算或实验测试中成功用于曲线的数字化系统被证明是无用的，因为它们是根据审美标准开发的启发式方法的结果。雷诺工程师 Pierre Bezier 和雪铁龙工程师 Paul de Casteljau 找到了解决方案，他们专注于形状的构思阶段，而不是随后将其转化和集成到数字领域，研究设计师的工作方法并将其纳入曲线的数学定义自己的绘画行为，被理解为创作过程中的基本工具支持。