What shape grammars do that CAD should: the 14 cases of shape embedding

Hong, Tzu-Chieh Kurt; Economou, Athanassios

doi:10.1017/s0890060421000263

Cited by 6 publications

(2 citation statements)

References 45 publications

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“…Among them, the Shape Machine has managed to successfully resolve the challenges underlying shape embedding in the algebra Uitalic12 for straight lines and arcs and labeled straight lines and arcs in the algebra Vitalic12, effectively reworking the geometrical representations underlying the CAD representations of lines and arcs and introducing a reworking of the dual representation of the maximal elements and their underlying hyperplanes. 40 The application already boasts a rising number of successful computer implementation of shape grammar applications. 41 And yet, much more work is needed to see whether indeed the shape grammar implementations can find their way into the toolkit of most practicing architects.…”

Section: Literature Reviewmentioning

confidence: 99%

Generative workplace and space planning in architectural practice

Okhoya¹,

Bernal²,

Economou

et al. 2022

International Journal of Architectural Computing

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Generative design is emerging as an important approach for design exploration and design analysis in architectural practice. At the interior design scale, although many approaches exist, they do not meet many requirements for implementing generative design in practice. These requirements include the need for end-user accessible tools and skills, rapid execution, the use of standard inputs and outputs, and being scalable and reusable. In this paper, we describe a hybrid process that uses both space allocation and shape grammar algorithms to solve workplace and space planning interior design problems. Space allocation algorithms partition spaces according to program requirements while shape grammar automates the placement of inventory and the production of high-resolution drawings. We evaluate using three real world example projects how this hybrid approach meets the identified requirements of generative space planning in architectural practice.

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Section: Literature Reviewmentioning

confidence: 99%

Generative workplace and space planning in architectural practice

Okhoya¹,

Bernal²,

Economou

et al. 2022

International Journal of Architectural Computing

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the design process, CAD is extensively employed by designers to inspire and innovate their designs (Camba et al , 2014). The use of CAD appears to provide significant benefits during the idea-generation process (Veisz et al , 2012; Hong and Economou, 2022), while it is also widely used to refine creative concepts at a later stage of the design process (Wang et al , 2021). CAD is mainly based on 2D screens, such as desktops or mobile devices, which allow designers to manipulate virtual objects in real-time.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the feeling of control in virtual object translation on 2D interfaces

Sun

Huang

et al. 2023

AIEDAM

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Computer-aided design (CAD) plays an essential role in creative idea generation on 2D screens during the design process. In most CAD scenarios, virtual object translation is an essential operation, and it is commonly used when designers simulate their innovative solutions. The degrees of freedom (DoF) of virtual object translation modes have been found to directly impact users’ task performance and psychological aspects in simulated environments. Little is known in the existing literature about the sense of agency (SoA), which is a critical psychological aspect emphasizing the feeling of control, in translation modes on 2D screens during the design process. Hence, this study aims to assess users’ SoA in virtual object translation modes on mouse-based, touch-based, and handheld augmented reality (AR) interfaces through subjective and objective measures, such as self-report, task performance, and electroencephalogram (EEG) data. Based on our findings in this study, users perceived a greater feeling of control in 1DoF translation mode, which may help them come up with more creative ideas, than in 3DoF translation mode in the design process; additionally, the handheld AR interface offers less control feel, which may have a negative impact on design quality and creativity, as compared with mouse- and touch-based interfaces. This research contributes to the current literature by analyzing the association between virtual object translation modes and SoA, as well as the relationship between different 2D interfaces and SoA in CAD. As a result of these findings, we propose several design considerations for virtual object translation on 2D screens, which may enable designers to perceive a desirable feeling of control during the design process.

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Back to the Drawing Board: Shape Calculations in Shape Machine

Economou

Hong

2023

Design Computing and Cognition’22

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What shape grammars do that CAD should: the 14 cases of shape embedding

Cited by 6 publications

References 45 publications

Generative workplace and space planning in architectural practice

Generative workplace and space planning in architectural practice

Evaluating the feeling of control in virtual object translation on 2D interfaces

Back to the Drawing Board: Shape Calculations in Shape Machine

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