Eric AndresUniversity of Poitiers, France
Title: Digital Swept TubesAbstract: In this presentation we are going to show how it is possible to construct digital tubes in a very simple and straight-forward way based on a 3D parametric curve and a profile that can be based on an implicite 2D curve or a shape extracted from a binary image. One of the main characteristic of this generation method is that the digital tubes have a controlled topology in the sense that we control its k-separability. Extensions to digital tubular tree structures are also possible. As an appetizer you can look up some of the examples on the following site.
Helmut PottmannTU Wien, Austria
Title: Freeform Architecture and Discrete Differential GeometryAbstract: Free forms constitute one of the major trends within contemporary architecture. While the digital design of freeform geometry with current modeling tools is well understood, the actual fabrication on the architectural scale is a big challenge: one has to decompose the skins into manufacturable panels, provide appropriate support structures, meet structural constraints and last, but not least make sure that the cost does not become excessive. These practical requirements form a rich source of research topics in geometry and geometric computing. The speaker will report on recent progress in geometric computing for freeform architecture, with special emphasis on the close relation to discrete differential geometry. Specific topics to be addressed include: meshes with planar quadrilateral faces and corresponding supporting structures, polyhedral patterns, semi-discrete representations for structures from single curved panels, and the design of structures in force equilibrium. The transfer of research into the architectural practice will be illustrated at hand of selected projects.
Michael WilkinsonUniversity of Groningen, Nederland