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Transforming grammars for goal driven style innovation: Testing a methodology
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Transforming grammars for goal driven style innovation: Testing a methodology

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presentation at eCAADe 2007, 26-28 sep 2007, Frankfurt am Main, Germany ...

presentation at eCAADe 2007, 26-28 sep 2007, Frankfurt am Main, Germany

Shape grammar transformations have been used for developing new design styles by the systematic modification of grammars that encode existing styles. We make use of a style description scheme to aid grammar transformations for goal driven style change. A rule base was authored for the design of Greek temple facades, and was augmented with a style description scheme. These were tested at a student workshop wherein students were asked to develop grammars based on given style briefs. Results gained from the workshop confirmed that most students were able to assemble and transform grammars successfully. The method was found to be useful for teaching style and grammars to students and novice designers.

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    Transforming grammars for goal driven style innovation: Testing a methodology Transforming grammars for goal driven style innovation: Testing a methodology Presentation Transcript

    • Transforming grammarsfor goal driven style innovation Testing a methodology Sumbul Ahmad Scott Chase eCAADe 2007 Department of Architecture
    • Wright Prairie & Usonian houses De Stijl paintingsKnight: Style synthesis via grammar transformation
    • Yingzao fashi grammarLi: Imparting style knowledge
    • Rules DesignsFleming: Teaching design synthesis
    • Use of semantic differential to quantify style attributes associated with grammar components Primitives Style Characteristics Spatial Relations Style Characteristics Rules Grammar Style Description SchemeAhmad & Chase: Style Description Scheme
    •  Developing style descriptors, and associating them with grammar components Quantifying these on a scale of -5 to 5 Grammar Component Adjectival pair Shape Boundary A1 Rectilinear Curvilinear A2 Basic Derivative Corners A3 Angular Rounded Spatial Relationship Organisation B1 Axial Non-axial B2 Symmetrical Asymmetrical B3 Monolithic Fragmentary B4 Directional Stable Shape group Arrangement C1 Rectlinear Curvilinear C2 Symmetrical Assymetrical C3 Monolithic Fragmentary C4 Directional StableMobile Phone Grammar
    • 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0% Curvilinear Rectilinear A1 Derivative A2 Basic Shapes Angular Rounded A3 Axial B1 Range Symmetrical B2 Monolithic Fragmentary B3 Spatial RelationsMeasures to describe style Directional Static B4 Rectilinear Curvilinear C1 Symmetrical Asymmetrical C2 Fragmentary Monolithic C3 Shape Groups Directional Static C4 Inclination Average
    • • Aims – Introduce students to grammars and concepts of style briefs/transformations – Test the methodology of transformation• Tasks – Researcher • Develop rule base and style descriptors – Students • Assemble a design grammar based on a given style brief • Transform the grammar based on an altered style briefStudent workshop
    • Development of the temple rule base
    • • Handouts – Rule base – Activity sheet & Derivation sheet – Feedback form• Tasks Original brief 1. Assemble grammar from rule set, based on brief 2. Generate designs New brief 3. Transform original grammar according to new brief 4. Generate designs from the new grammar 5. FeedbackWorkshop operation
    • Style briefs
    • Original style brief• Composition: ‘Symmetric’, ‘Monolithic’, ‘Stable’• Design element specification: ‘Rectilinear’, ‘Symmetric’, ‘Simple’ or ‘detailed’ or both.• Column spacing: ‘Symmetry’ ‘Density’ ‘Regularity’ Be-01 Bu-01 Co-01 Fe Jo-01 Mi-01 Se-01Original grammars: Designs
    • Altered style brief 1• Composition: ‘Asymmetric’ or ‘symmetric’ or both; ‘Monolithic’ or ‘fragmentary’ or both; ‘Stable’ or ‘directional’ or both.• Design element specification: ‘Rectilinear’, ‘Symmetric’, ‘Simple’ or ‘detailed’ or both.• Column spacing: ‘Asymmetric’ ‘Sparse’ ‘Irregular’ Be-01 Cou-01 Co-01 Fe-01 Jo PoTransformed grammars: Designs 1
    • Altered style brief 2• Composition: ‘Symmetric’, ‘Monolithic’, ‘Stable’• Design element specification: ‘Rectilinear or Curvilinear or both’, ‘Symmetric or Asymmetric or both’, ‘Simple’ or ‘detailed’ or both.• Column spacing: ‘Symmetry’ ‘Density’ ‘Regularity’ Bu-01 Se-01 Sm-01Transformed grammars: Designs 2
    • Grammars developed from style briefs
    • • Style descriptors useful for assembling grammars• Designs generally conformed to the style briefs• Style descriptors like a rough guide• Useful for setting standards for ambiguous concepts• Some discomfort with limits imposed on range of designs• Others liked the set of parameters with which to work• Feedback supports idea that style descriptors could be used for goal driven style changeStudent feedback
    • • Students with no grammars experience were able to assemble and transform grammars and generate designs according to given style briefs• Rule sets allow students to understand and use rules quickly• Style briefs were broad & generic in nature, allowing individual interpretations• Transformed designs showed significant stylistic change in some casesSummary