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EindhovenTechnische Universiteit
An Experimental Design System for the Very Early
Design Stage
B. de Vries
A.J. Jessurun
EindhovenTechnische Universiteit
VR-DIS
Projects• Interactive Design
System• Distributed
Multidisciplinary Design
• Interactive Measurement of user Reactions
Scientific Topics• Case Based
Reasoning• Conjoint Models• Design Methodology
and CAD• Feature Based
Modeling• Multi Agent Systems• User Interfaces
EindhovenTechnische Universiteit
Case
• fit spaces• check
requirements• ordering spaces• plan layout• façade
impression• roof shapes
EindhovenTechnische Universiteit
Feature Based Modeling
• Flexibility: Feature Sharing
• Extensibility: Inheritance, Decomposition, Association
• Evolution: Feature Types, Feature Instances
EindhovenTechnische Universiteit
Design Agent: Constraints
1 create interval objects
2 create interval constraints
3 build equations4 solve equations
(Simplex, BiConjugate Gradient)
EindhovenTechnische Universiteit
Space Analysis Tool
• Design Phase: Client Brief - Space Layout• Spaces : Shape = Box• Relationships:
• Space_A adjacent to Space_B• Space_A in Space_B• Space_A on Space_B
• Constraints: Dimension, Position• Relative• Absolute
EindhovenTechnische Universiteit
System Architecture
Feature Model
Scale ModelView
Feature ModelView
RDBMSConstraint
Solver
Geometry Lib.
EindhovenTechnische Universiteit
Step 1: Feature View
• instance building element types (e.g. kitchen)
• instance shape type (=box)
• associate shape to building element
EindhovenTechnische Universiteit
Step 2: Scale Model View
EindhovenTechnische Universiteit
Step 3: Resize Spaces
EindhovenTechnische Universiteit
Step 4: Order Spaces
EindhovenTechnische Universiteit
Step 5: Add Constraints
EindhovenTechnische Universiteit
Step 6: Solve Constraints
EindhovenTechnische Universiteit
Step 7: Fix/Release Positions and Dimensions
EindhovenTechnische Universiteit
Step 8: Evaluate Space Composition
EindhovenTechnische Universiteit
Discussion
• No calculated design solutions, but limiting of the design solution space
• Constraints do not replace grid/snap• Add constraints ‘carefully’• Solve for:
• ordering of spaces• check of implicit/explicit design constraints
EindhovenTechnische Universiteit
Future Developments
• VR - Feature Tool• Generic Design Knowledge (CBR)• User Interface for Geometric
Manipulations• Materialization of Space Boundaries• Creation of Structural Elements in
Spaces