ICGG 2022 - Proceedings of the 20th International Conference on Geometry and Graphics

On ISGG's 30th Agenda: Legacy and Challenges.- On the Diagonals of Billiards.- Exploring the Steiner-Soddy Porism.- Circumparabolas in Chapple's porism.- Permutation Cubics.- Beyond the Nine-Point Conic.- Complex Solution of Engineering Problems by Graphic Methods.- Integer Sequences from Circle Divisions by Rational Billiard Trajectories.- Topographic Surfaces as Topological Sets.- Generalizing Continuous Flexible Kokotsakis Belts of the Isogonal Type.- The Intersection Curve of an Ellipsoid with a Torus Sharing the same Center.- Four-Dimensional Visual Exploration of the Complex Number Plane.- Regularity Conditions for Voronoi Diagrams in Hyperbolic Space.- Poncelet and the (Arquimedean) twins.- A Note on Local Intersection Multiplicity of Two Plane Curves.- Locally Flat and Rigidly Foldable Discretizations of Conic Crease Patterns with Reflecting Rule Lines.- Transformations between Developments and Perspectives of Three and Four Dimensional Cubes.- Perfect circles, Amicable Triangles and some of their Properties - Angles Equality and About Two New Constants in the Triangle.- Geometrical Construction of Shape by a Weak-Visual Person in a Physical Medium.- Algebraic Surfaces and their Geometric Bases.- The Wrought Iron Beauty of Poncelet Loci.- Rectification of an Edgy Photograph.- Point Cloud Upsampling via Quadric Fitting.- Viewing Matters.- Geometric Aspects of Modeling Real Conditions of Solar Irradiation of Energy Efficient Architectural Objects.- MPS Simulation for the Japanese Sport Wellness Blowgun.- Conservative Dynamical Systems in Oscillating Origami Tessellations.