The techniques presented in this paper are oriented toward the domain of network diagrams. As one step toward alleviating these difficulties, we present an integrated sketch parsing and recognition approach designed to enable natural, fluid, sketch-based computer interaction. ![]() place unnatural constraints on the way the user draws. Existing pen-based systems either avoid these issues altogether, thus resulting in the equivalent of a drawing program, or rely on algorithms that. A main difficulty lies in reliably extracting and recognizing the intended set of visual objects from a continuous stream of pen strokes. Show colleagues, customers, or end users early on how an interface willĪ long standing challenge in pen-based computer interaction is the ability to make sense of informal sketches. Storyboards are important because they give designers a way to Storyboards-the arrangement of sketches to show how design elementsīehave, such as how a dialog box appears when the user activates aīutton. SILK sketch, designers can drag it up and down, which lets them testĬomponent or widget behavior. In a paper sketch, the elevator would just sit there, but in a For example, a sketched scroll-bar is likely toĬontain an elevator or thumbnail, the small rectangle a user drags withĪ mouse. Paper-based sketching, however, designers can exercise these elements in Widgets and other interface elements as the designer draws them. Interface using an electronic pad and stylus, and SILK recognizes With SILK, designers can quickly sketch an (Sketching Interfaces Like Krazy), an informal sketching tool thatĬombines many of the benefits of paper-based sketching with the merits Mellon University have designed, implemented, and evaluated SILK Researchers at University of California, Berkeley and Carnegie In addition to graph matching and sketch-based interaction, more recent BIM-based approaches are also taken into account. The system is able to present corresponding existing solutions to even rudimentary sketches or fragments of a design idea. For both building information models and the user sketches, the extracted graphs are used as the basis for a subgraph-matching algorithm facilitating an intuitive novel query method for researching similar reference examples. ![]() The topology of spatial configurations is extracted from building information models and represented as graphs. To this end we propose a method for indexing spatial configurations along with a sketch-based input method for search strategies that uses so-called semantic fingerprints of buildings. A common approach is to refer to similar examples, which are conventionally found using keyword-based search strategies. The early design phases are characterised by an iterative process of searching for plausible solutions. Building information modeling (BIM) principles are transforming today's communication and working processes in the field of construction, however the early design phases are only rarely supported and information technology is therefore not exploited to its full potential.
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