Devarajan Ramanujan, William Benjamin, William Z. Benstein, Niklas Elmqvist, Karthik Ramani
shapeSift: Suggesting sustainable options in design reuse from part repositories
ASME IDETC/CIE 2013
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shapeSift is a framework for supporting sustainability based decision making during selection of similar previous designs from part repositories. Our framework is designed for 3D part repositories that contain metadata pertaining to materials and manufacturing processes as well as the functionality of a given part. To demonstrate the usefulness of the proposed framework we develop an example multi-dimensional visualization that encodes part similarities as well as a calculated environmental sustainability indicator. This visualization is incorporated in a prototype interface that focuses on enhancing the intuitiveness of the exploration process by the use of sketch-based retrieval.

Picture1

Visualization pipeline for exploring 3d repositories using the shapeSift framework. Users begin by sketch based querying as shown in (1). Our system organizes search results using a squarified layout (2) that is constructed using Brul’s squarified treemap algorithm. Here, each color corresponds to a particular material class. The area of a cell is scaled in negative proportion to the calculated environmental impact indicator. Parts are ordered by shape similarity relative to the query. Users can explore these results further using a similarity polygon (3a), sliders that set values for distance threshold (3b) and interactive tooltips (3c). The combination of these steps forms a unit iteration that can be repeated as desired by the user.

Demonstration Video

 

Dev Ramanujan
About Devarajan Ramanujan

Devarajan Ramanujan is currently a PhD candidate in the School of Mechanical Engineering at Purdue. He has a Bachelors degree in Mechanical Engineering with specialization in Production Technologies from Osmania University, Hyderabad, India.  His research interests are in data representation and visualization models within product design for supporting environmentally conscious design. He has co-authored publications in the Journal of Mechanical Design, Journal of Computing and Information Science, Computer-Aided Design, Association for Computing Machinery Conference on Human Factors in Computing Systems, and the American Society of Mechanical Engineering International Design Engineering Technical Conferences. He has received the American Society of Mechanical Engineering Design for Manufacturing and the Lifecycle Scholar Development Award in 2014, and the Estus H. and Vashti L. Magoon Award for Teaching Excellence in 2015.  [Linked In Profile] [Personal Web Page]

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Posted in 2013, DESIGN METHOD, Design Representation, Devarajan Ramanujan, Karthik Ramani, William Benjamin, William Z Bernstein