DEPICTING DAYLIGHTINGTypes of Multiple Image Display

NANCY YEN-WEN CHENG AND EDWIN PAT-YAK LEE

d e p a r t m e n t o f a r c h I t e c t u r e - u n I v e r s I t y o f o r e g o n

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Outline

IntroductionMotivationObjectivesVariablesBackground

DescriptionProcedures Versions

FindingsIssuesConclusionFuture Work

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MotivationsUnderstand buildings

under changing conditions

Make visualizations more usable in design and communication process

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ObjectivesIdentify critical factors

(alt. use photographs)

Compare usability factors for design evaluation

not looking at simulation accuracy or efficiency

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VariablesDAYLIGHTING depends on

time of dayday of year, building formlocation

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VariablesREPRESENTATION depends onviewpoint & depiction method

(geometric system, media)

naturalisticquantitative symbolic

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VariablesWeb Representation:

sequence vs. simultaneity

vs.

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VariablesWeb Representation:

sequence vs. simultaneityimage size & number

vs.

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VariablesWeb Representation:

sequence vs. simultaneityimage size & numberinteractivity

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Lighting Design InquiriesIdentify overlighting,

underlighting, glare problems

Understand range of conditions throughout year or at key times

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Lighting Design InquiriesConnect sun position, form and surface to visual effects

images by Po-chi Lu

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Lighting Design InquiriesCompare different design

solutions

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Lighting Design Inquiries

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Background researchArt

Vermeer, Lady Standing at a Virginal

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Background researchArt / Multimedia

Jan Dibbets’ The Shortest Day at the Van Abbemuseum, Eindhoven. 1970.

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Background researchArt / Multimedia

Levin, Golan, & Paul Debevec. Rouen Revisited, 1996

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Background researchBuilding Science

K. Papamichael, B. Sumption, B Haglund,

Bruce and A.Zabrodsky, Alexander,

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Background researchBuilding Science

D. Glaser, S. Ubbelohde, M. Hearst

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Procedure – design cycleDesign of Website options

Discussion and feedback from users

Characterization of Websites into graphs

Revision of Website, images, user questions

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Website 1st setnaturalistic images only

4 ways

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Website 1st setAttribute Graphs

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Website 2nd SetDiagrams to show

cyclical nature

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Website 2nd SetAttribute Graphs

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Website 3rd SetZoom-in

side by side comparison, enlarge for inspection

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Website 3rd SetAttributeGraphs

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Revised renderings & scenarios

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IssuesControl

clear navigation over fancy interface

2D matrix clear & accessible (not cyclical)

3D forms difficult to navigate

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IssuesContext

proximity or interactive relationship

labels or icons

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IssuesInfo Density

allows detailed inspectionSize and number of images

zoom, overlap, substitute

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IssuesPurpose

visualization to fit design questions

?

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IssuesPurpose

priority of options to fit design questions

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ConclusionsSequentialcomplements

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Further workScenario-based surveysTest further options – more

context, different interactions

Perceptual issues – artistic compensation for adaptation

DEPICTING DAYLIGHTINGTypes of Multiple Image Display

NANCY YEN-WEN CHENG nywc@darkwing.uoregon.edu

d e p a r t m e n t o f a r c h I t e c t u r e - u n I v e r s I t y o f o r e g o n

EDWIN PAT-YAK LEE edwinlee@darkwing.uoregon.edu