GEMS

Geometric Manufacturing Solutions for Freeform Shapes

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Publications
  • Jonathan Mizrahi and Gershon Elber. Detection of critical points of multivariate piecewise polynomial systems.. Computer-Aided Geometric Design, to appear [Proc. GMP'2015 conference, Lugano]
  • Yong-John Kim, Gershon Elber, Myung-Soo Kim. Precise contact motion planning for deformable planar curved shapes. Computer-Aided Design, 2015, to appear [Proc. GD/SPM 2015]
  • Chengcheng Tang, Pengo Bo, Johannes Wallner, and Helmut Pottmann. Interactive design of developable surfaces. ACM Trans. Graphics (2015), to appear
  • Ben Ezair, Fady Massarwi, Gershon Elber. Orientation analysis of 3D objects toward minimal support volume in 3D-printing. Computers and Graphics 51, 117-124 [Proc. SMI 2015]
  • Philippe Block, Axel Kilian and Helmut Pottmann (Eds.). special issue on "Steering architectural Form". Computer-Aided Design 61, April 2015
  • Jonathan Mizrahi and Gershon Elber. Topologically Guaranteed Bivariate Solutions of Under-constrained Multivariate Piecewise Polynomial Systems. Computer Aided Design, 58 (2015), 210-219. [Proc. SPM'14]
  • Yong-Joon Kim, Gershon Elber, Michael Barton, and Helmut Pottmann. Precise gouging-free tool orientations for 5-axis CNC machining. Computer Aided Design, 58 (2015), 220-229. [Proc. SPM'14, best paper award, 2nd place]
  • Jaewook Lee, Yong-Joon Kim, Myung-Soo Kim, and Gershon Elber. Efficient Offset Trimming for Deformable Planar Curves using a Dynamic Hierarchy of Bounding Circular Arcs. Computer Aided Design, 58 (2015), 248-255. [Proc. SPM'14]
  • Helmut Pottmann, Caigui Jiang, Mathias Höbinger, Jun Wang, Philippe Bompas, Johannes Wallner. Cell Packing Structures. Computer-Aided Design 60 (2015), 70-83
  • Charlie C.L. Wang and Gershon Elber. Multi-dimensional dynamic programming in ruled surface fitting. Computer-Aided Design 51 (2014) 39-49
  • Caigui Jiang, Jun Wang, Johannes Wallner, and Helmut Pottmann. Freeform honeycomb structures. Computer Graphics Forum 33/5 (2014), 185-194, [Proc. Symp. Geom. Processing.]
  • Caigui Jiang, Chengcheng Tang, Marko Tomicic, Johannes Wallner, and Helmut Pottmann. Interactive modeling of architectural freeform structures - combining geometry with fabrication and statics. in: P. Block et al. (eds.) Advances in Architectural Geometry 2014, pages 95-108. Springer
  • Michael Barton, Helmut Pottmann, and Johannes Wallner. Detection and reconstruction of freeform sweeps. Computer Graphics Forum 33/2 (2014), 23-32, Proc. Eurographics
  • Aviv Segall, Jonathan Mizrahi, Yong-Joon Kim, and Gershon Elber. Line Accessibility of Free Form Surfaces. Graphical Models 76(5), 301-311, 2014
  • Rouven Strauss, Florin Isvoranu, Gershon Elber. Geometric Multi-Covering. Computers & Graphics 38 (2014), 222-229 [Proc. 2013 CAD / Graphics Conference, best paper award]
  • Yong-Joon Kim, Gershon Elber, and Myung-Soo Kim. Precision Continuous Contact Motion for Planar Freeform Geometric Models. Graphical Models, 76(5):580-592, 2014
  • Gershon Elber and Myung Soo Kim. Modeling by Composition. Computer-Aided Design 46 (2014), 200-204 [Proc. SPM conference]
  • Yong-Joon Kim, Myung Soo Kim and Gershon Elber. Precise Convex Hull Computation for Freeform Models using a Hierarchical Gauss Map and a Coons BVH. Computer-Aided Design 46 (2014), 252-257 [Proc. SPM conference]
  • Jonathan Mizrahi and Gershon Elber. Optimizing Subdivision Solvers of Piecewise Polynomial Systems. Mathematics of Surfaces XIV (R. J. Cripps et al., eds.) pp. 393-416
  • Thomas Kiser, Michael Eigensatz, Minh Man Nguyen, Philippe Bompas and Mark Pauly. Architectural caustics — controlling light with geometry. in: Advances in Architectural Geometry 2012. L. Hesselgren et al. (Eds), Springer 2012. pp. 91-106
Technical Reports
  • Pengbo Bo, Michael Barton, Denys Plakhotnik and Helmut Pottmann. Towards efficient 5-axis flank CNC machining of free-form surfaces via fitting envelopes of surfaces of revolution. Technical Report, TU Wien, Dez 2015
  • Martin Kilian. Segmentation of free-form architecture and approximation with circular cones. Technical Report, Evolute.
  • Michael Barton, Simon Flöry, Helmut Pottmann. Surface Approximation with Circular Sweeps for Applications in CNC Machining and Freeform Architecture. Technical Report, TU Wien, May 2013
  • Michael Eigensatz. Conical Swarfing. Technical report, TU Wien, April 2013
  • Christine Pranzas. Task ideas for GEMS, Section 'Contact line assignment'. Technical report, ModuleWorks Aachen, September 2012
Presentations
  • 18.11.2015. Helmut Pottmann: Interactive computational design using guided projection onto constraint varieties. Department of Mathematics, TU Munich, Germany
  • 20.10.2015. Helmut Pottmann: Architectural geometry. public lecture, Polytecnico Milano, Italy
  • 19.10.2015. Helmut Pottmann: Discrete Geometric structures motivated by applications in architecture. Department of Mathematics, Polytecnico Milano, Italy
  • 29.9.2015. Helmut Pottmann: Geometric optimization for architecture and CNC machining. ModuleWorks Romania, Bucharest
  • 12.8.2015. Gershon Elber: Toward Manufacturing of Freeform Geometry using Algebraic-based Analysis. ICIAM international congress in Industrial and Applied Mathematics, Beijing
  • 10.8.2015. Gershon Elber: Algebraic methods in NURBs representations, toward Isogeometric Analysis. ICIAM international congress in Industrial and Applied Mathematics, Beijing
  • 11.07.2015. Alex Schiftner: EvoluteTools T.MAP - Mesh parametrization for Rhinoceros 3D. Geometry Workshop Seggau
  • 17.6.2015. Johannes Wallner: Geometric modeling of developable and curved-folding objects. DTU, Copenhagen
  • 7.5.2015. Gerhon Elber: Contacts. Workshop 'Numerical Methods and Applied Geometry', Weizmann Institute
  • 3.3.2015. Johannes Wallner: Modelling of Developables and Curved Folds. Oberwolfach workshop on Discrete Differential Geometry
  • 16.2.2015. Helmut Pottmann: Freeform architecture and differential geometry. Workshop Riemannian Geometry in shape analysis and computational anatomy, Erwin Schrödinger Institute, Wien
  • 16.12.2014. Helmut Pottmann: Architectural Geometry (invited lecture). FoCM conference, Montevideo
  • 14.11.2014. Johannes Wallner: Geometry and statics of polyhedral surfaces. Center for Geometry and Computational Design, TU Wien, Opening
  • 28.10.2014. Efficient Offset Trimming for Deformable Planar Curves using a Dynamic Hierarchy of Bounding Circular Arcs: Jaewook Lee, Yong-Joon Kim, Myung-Soo Kim & Gershon Elber. SPM'2014 (Symposium on Solid and Physical modeling), Hong Kong
  • 27.10.2014. Yong-Joon Kim, Gershon Elber, Michael Barton & Helmut Pottmann: Precise Gouging-free Tool Orientations for 5-Axis CNC Machining. SPM'2014 conference, Hong Kong
  • 27.10.2014. Jonathan Mizrahi & Gershon Elber: Topologically Guaranteed Bivariate Solutions of Under-constrained Multivariate Piecewise Polynomial Systems. SPM'2014 conference, Hong Kong
  • 25.9.2014. Amir Vaxman: Frameworks for Modeling Polyhedral Meshes. Moduleworks GmbH, Aachen
  • 11.9.2014. Johannes Wallner: Fabrication-aware Design for Freeform Architecture. GDM'2014 (Geometric Design Facing Manufacturing), Eilat
  • 11.9.2014. Mathias Hobinger & Mathieu Huard: Geometry Optimisation for Manufacturing in Architecture. GDM'2014 conference, Eilat
  • 9.9.2014. Yong-Joon Kim: Two contact Toolpath computation for 5-Axis CNC machining. GDM'2014 conference, Eilat
  • 9.9.2014. Geshon Elber: Science Art Synergy. GDM'2014 conference, Eilat
  • 4.9.2014. Helmut Pottmann: Interactive modeling with developable surfaces. Seminar on Computational Aspects of Fabrication, Leibniz Center for Informatics, Dagstuhl, Germany
  • 9.7.2014. Helmut Pottmann: Recent progress and open problems in Architectural Geometry. Symposium on Geometry Processing, Cardiff (keynote)
  • 12.6.2014. Gershon Elber: Precise Analysis of Trimmed Surfaces by Algebraic Untrimming. 8th Int. Conference on Curves and Surfaces, Paris (France)
  • 15.6.2014. Cell Packing Structures: 8th Int. Conference on Curves and Surfaces, Paris (France).
  • 26.5.2014. Helmut Pottmann: Interactive geometric modeling under nonlinear constraints. Seminar on Geometric Modeling, Leibniz Center for Informatics, Dagstuhl, Germany
  • 29.4.2014. Helmut Pottmann: Discrete geometric structures motivated by applications in architecture. Institute of Mathematics and its Applications, University of Minnesota, Minneapolis
  • 26.2.2014. Helmut Pottmann: Computational differential geometry and fabrication-aware design. Distinguished Lecture, Department of Computer Science, University College London
  • 10.12.2013. Johannes Wallner: Cell Packing Structures. "Discretization in Geometry and Dynamics" Colloquium, TU Müchen
  • 29.11.2013. Michael Eigensatz: No Free Form. TU Graz
  • 24.11.2013. Christine Pranzas: Five- And Six-Axis Tool Path Generation For CNC Machines. Technion, Haifa
  • 24.11.2013. Bastian Pranzas: Roughing Tool Path Generation For Milling Of Multi Blade Parts. Technion, Haifa
  • 16.11.2013. Rouven Strauss, Florin Isvoranu, Gershon Elber: Geometric Multi-Covering. CAD / Graphics Conference, Hong Kong
  • 12.11.2013. Gershon Elber: Modeling by Composition. SIAM-ACM Conference on Geometric and Physical Modeling, Denver
  • 11.11.2013. Gershon Elber: Contacts. SIAM-ACM Conference on Geometric and Physical Modeling, Denver (invited lecture)
  • 11.11.2013. Yong-Joon Kim and Gershon Elber: Precise Convex Hull Computation for Freeform Models Using a Hierarchical Gauss Map and Coons Bounding Volume Hierarchy abstract . SIAM-ACM Conference on Geometric and Physical Modeling, Denver
  • 16.10.2013. Johannes Wallner: Algorithms for Recognizing Sweep Surfaces. Geometry seminar, TU Wien
  • 18.9.2013. Marc Stautner: New developments in tool path planning. GEMS Workshop, Sinaia
  • 18.9.2013. Gershon Elber: Covering Problems for illumination and security applications. GEMS Workshop, Sinaia
  • 18.9.2013. Denys Plakhotnik: Five-Axis Tool Path Planning. GEMS Workshop, Sinaia
  • 18.9.2013. Christine Pranzas: Algorithms for conical swarfing. GEMS Workshop, Sinaia
  • 18.9.2013. Johannes Wallner: Freeform Surface Fitting by Sweeps of Planar Curves. GEMS Workshop, Sinaia
  • 18.9.2013. Yong-Joo Kim: High-Precision Continuous Contact Motion for Planar Freeform Geometric Models. GEMS Workshop, Sinaia
  • 12.9.2013. Helmut Pottmann: Polyhedral mesh modeling. 14th IMA Conference Mathematics of Surfaces, Birmingham (invited lecture)
  • 19.7.2013. Helmut Pottmann: Form-finding with polyhedral meshes. Workshop on Approximation Theory, Univ. Passau
  • 2.7.2013. David Chifiriuc: MachSim — ModuleWorks' simulation component. TU Wien
  • 23.5.2013. Helmut Pottmann: Towards smart computational design. Computer Science Department, Univ. Zürich
  • 15.5.2013. Helmut Pottmann: Architecture in the information age. Prince Sultan University, Riyadh
  • 8.5.2013. Helmut Pottmann: Freiformarchitektur und Mathematik. Symposium Industrielle Geometrie, HFT Stuttgart
  • 14.4.2013. Michael Eigensatz: Architectural Caustics. Technion, Haifa
  • 6.3.2013. Michael Eigensatz: Architectural geometry. presentation at Lindner Steel & Glass (Dettelbach, Germany)
  • 29.1.2013. Helmut Pottmann: Structures from circular arcs. Workshop on Algebraic Geometry and Geometric Modeling, BIRS, Banff, Canada
  • 18.12.2012. Helmut Pottmann: Recent progress on discrete geometric structures for architecture. Workshop "Discretization in Geometry and Dynamics", Obergurgl, Austria
  • 17.10.2012. Michael Eigensatz: Architectural Caustics. Geometry seminar, TU Wien
  • 27.9.2012. Michael Eigensatz: Architectural Caustics - Controlling Light with Geometry. paper presentation at the Advances in Architectural Geometry conference, Paris
  • 26.09.2012. Christian Müller: Smooth and discrete notions of curvature for curves and surfaces. ModuleWorks, Aachen
  • 12.7.2012. Helmut Pottmann: Freeform architecture and discrete differential geometry. 60th Annual SIAM Conference, Minneapolis (invited lecture)
  • 12.6.2012. Helmut Pottmann: Geometric Computing for Freeform Architecture. Nexus 2012: Relationships Between Architecture and Mathematics, Milan (invited lecture)
Courses
  • 16.6.2015. Johannes Wallner: Ruled surfaces and developable surfaces. Summer School on Geometry and Algorithms for Archtecture and Design, DTU Copenhagen 15.-19.6.2015.
  • 1.10.2012-31.1.2013. Michael Eigensatz: Geometry Optimization and Discretization. Bachelor curriculum "Architecture", TU Wien

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