Sketching and diagramming— drawing freehand with a stylus — is an important part of exploring design alternatives and reasoning about designs. Yet computational tools do not support drawing and diagramming as a mode of communicating design knowledge—”visual language”. Under the rubrics of Electronic Cocktail Napkin and Back of an Envelope Design we investigated tools, techniques, and demonstration applications that incorporate drawing and sketching into computationally supported knowledge-based designing.
2004 A report on computational sketching software systems to support Recording, Reasoning, and Resolving in design.
1996 Sketch software acquires information about ambiguity and precision, represents it internally, and echoes it to users visually through constraint driven edit behavior.
2001 Constructing a machine-readable multimedia document from design speech and sketch actions, which can be replayed and searched.
2004 A freehand sketch system with design critiquing.
1998 Sketch recognition software constructs three dimensional digital models from isometric drawings.
1995… Sketch to retrieve items based on visual similarity.
1994 … An environment for sketching and diagramming in conceptual design served as a platform for various investigations.
2006 A sketch design system helps novices construct physical furniture models using a laser cutter.
2003 A lighting design assistant driven by sketching on 3D virtual models.
1999 A server-client object oriented draw program for collaborative design, with support for design hisory.
1996, 1997 Two papers on mobile pen computing.
2001 A computer based assistant uses pattern recognition to anticipate human designers’ perception of emergent shapes.
2012 A sketch design tool for design for laser cutters and 3D printers, now Zotebook.
1999 Two studies on architectural design and drawing.
2001-2004 Annotation and drawing on (and inside) 3D models to exchange text and sketched annotations for review.
1994 A pen-based draw program combines recognition of hand-drawn glyphs with maintenance of spatial relations.
2001, 2009 A paper on the use of freehand diagrams in architectural design.
2009 Sketch based software should recognize drawing as visual language. Keynote for Eurographics/ACM Symposium on Sketch Based Interaction and Modeling.