Coahran, M.Fiume, E.Joaquim Armando Pires Jorge and Takeo Igarashi2014-01-272014-01-2720053-905673-30-41812-3503https://doi.org/10.2312/SBM/SBM05/165-174Quilting is an art form in which amateur craftspeople explore geometry and color to create stunning designs. Bargello is a specific quilt style defined by a clever construction method that imposes constraints on the designs and gives them a characteristic appearance. Currently, Bargello patterns are typically designed manually, in a process that is laborious and time-consuming. We have developed a prototype system in which users can design Bargello quilts quickly and easily by sketching curves with a mouse. As a curve is drawn, the system transforms it into a graceful Bargello curve, composed of corner-connected axis-aligned rectangles, that respects both physical constraints and design constraints intrinsic to the Bargello style. We also provide a design setting that supports design variations typical of Bargello quilts and a set of tools to extend simple designs into complex ones. We conducted an informal evaluation of the system in a series of focus group sessions with potential users from the quilting community. Quilters were enthusiastic about the system and also provided suggestions for improvement.Categories and Subject Descriptors (according to ACM CCS): I.3.3 [Computer Graphics]: Applications-Bargello quilt design I.3.6 [Computer Graphics]: Methodology and Techniques-Interaction techniques I.3.3 [Computer Graphics]: Picture/Image Generation-Line and curve generation J.5 [Arts and Humanities]: Fine arts-Bargello quilts