Projects of illiMath2006 Research Experience for Undegraduates, Mathematics Department, University of Illinois at Urbana (UIUC), directed by Prof. George Francis, are the work of the student principal investigator (SPI) and their assiated mentor (AM) and/or corresponding mentor (CM). Other student investigators (SI) assist.
"Syzygy/Povray"; SPI: Paul Prue, UC Davis; AMs: Jim Crowell and Camille Goudeseune, ISL, Beckman, UIUC; CM: Dave Zielinski, DiVE, Duke University.
In this project real-time ray traced scenes are displayed in Syzygy based virtual environments (VE) such as the DiVE at Duke, and the CUBE, CAVE and CANVAS at Illinois. A number of raytracing techniques are tried out for possible animation speeds. These experiements illustrate concepts in geometrical computer graphics.
"Sakubo"; SPI: Mimi Tsuruga, Hunter College, NY; AMs: Ulises Cervantes-Pimentel, Wolfram Research, Champaign, IL, and Stuart Levy, NCSA, UIUC.
The next release of Mathematica has radically improved 3D graphics in the
kernel, including adaptive mesh subdivision and animation tools.
In this project Mathematica calculates deformations of surfaces, such as
the Romboy Homotopy of the Etruscan Venus, F. Apery's Gastrulate
Sphere Eversions, and J. Dalbec's contraction of Zeeman's Duncehat.
Mathematica computes the 3D stages of the homotopy (topes) and exports them
as either OOGL or VRML files. OpenGL applications Geomview and AVN,
and Syzygy application ZAVN or VRMLView animate
these topes on a console or in virtual environments.
Sakubo will be presented as a PME talk at Mathfest, Knoxville, TN, August, 2006.
"Quasicrystals"; SPI: Matt Gregory, UIUC; AM: George Francis; CM: Tony Robbin, New York.
DeBruijn proposed two methods for realizing quasicrystals as projections of
sub-lattices of the 6D unit lattice into 3-space. In this collaboration with
mathematical artists, Tony Robbin, deBruijn dual method is used to create
real-time interactive CUBE animations (RTICA). As a distributed scenegraph
(DSG) and Python application of Syzygy, the program can be modified at
run-time in collaborative sessions among remote peers (Myriad).
A poster of Quasicrystals will be presented at Young Mathematicians Conference at Ohio State University. Columbus, OH.
"Parallel Worlds"; SPI: Emily Echevarria, UIUC; AM: George Francis; CM: Ben Schaeffer, New York.
Ben Schaeffer's Syzygy application Myriad is a peer-to-peer sharing of
scenegraphs and their
subgraphs for real-time interactive visualizations of virtual worlds. With
avatar.py many users each acquire, modify and navigate their avatars in a
common world. With tieSpline.py users may simultaneously create a spline in the same 3-space, interlacing the splines and sharing a ride on each spline as desired.
A poster of Parallel Worlds will be presented at Young Mathematicians Conference at Ohio State University. Columbus, OH.
"ATP Synthase" SPI: Dave Bergman ; SI: Chris Rainey; AM: Prof. Paul McCreary, Evergreen College, WA ; CM: Jim Crowell, ISL.
This is a Syzygy port of McCreary's RTICA with which the user can navigate elaborate molecular models and a series of animated examples of Kleinian groups. The several formats of standard molecular data can be imported by the user. The navigation paths are Bishop framed and many features of the molecule are highlighted on demand.
"illiDyne" SPI: Chris Rainey; SI: Emily Echevarria; AM: George Francis;
This project greatly expands upon several previous Syzygy RTICA where
users view and interact with a series of chaotic and non-chaotic 3D dynamical
systems in the CUBE. These include the Lorenz, Roessler, Rainey, Rabinovich-Frabrikant, and 2D non-linear systems such as the Lienard-VanderPol. As a DSG-Python
application, the user can modify the code by inserting new dynamical
systems, and investigate these collaboratively with Myriad.
This project builds upon previous applications written by Stan Blank,
Ben Schaeffer, and Kyle Wilkinson.
ATPsynthase and illiDyne will be presented as an MAA talk at Session 5, Room 200A, 3:40pm Friday 11aug06, at Mathfest, Knoxville, TN, August, 2006.
"The Kiosk of Oz"; SPI: Abby Watt; AMs: Rose Marshack, CANVAS, Krannert Art Museum, and Jim Crowell, ISL, UIUC.
The CANVAS, CAVE and CUBE are fully immersive virtual environments that currently require users to navigate to different applications with a non-immersive computer kiosk. The purpose of the Kiosk of Oz is to allow the user to navigate to different applications using an immersive, museum-like environment.
"illiNav: Gesture Mapped Navigator for Virtual Environments"; SPI: David Bergman; AM: George Francis.
A Syzygy RTICA is navigated in the VE using a head tracker and a wand tracker. The wand has several buttons. In some setups, the console keyboard can be used for additional interactive input. In addition, all Syzgygy applications run on a console in standalone mode using a simulator of the VE control inputs. The design of gesture-assisted VE navigation and its mapping to the mousepad and keyboard in standalone mode is a difficult problem with many trial solutions, none of them satisfactory. This project makes some progress on improving the standalone input simulator.