CS 285: SOLID MODELING

Lecture #22 -- We Apr. 12, 2000.

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Preparation

Prepare your visuals and rehearse your talk.

Project Proposal Presentations

Single person presentations: 4 minutes, + 2 min. for Q&A

Two person presentations: 6 minutes, + 3 min. for Q&A

Jane Yen : Escher Ball Tiling Editor
Jianlin Wang : Snap-together Escher Tiles
Connie Tung : Fabrication of an Algebraic Surface
Chris Tchou : Spherical Tile Editor
Ben Schleimer : Extruded Beam Constructor
Arvind Rangarajan : Developable Surface Strips
Balaji Kannan : From Surfaces to Manufacturable Grids
Harlan Hile : Snap-together Surface Connectors
Chris Spitzer + Perry Tsao : Matlab Shape Generator for SLIDE
Ashish Mohole + Satish Kumar : Freeform Patches in WebCAD

Discussion of Presentations

What is different from the last series of presentations ?
Why is this one more difficult ?

Current Homework Assignment:

READ:

"Marching Cubes: A High Resolution 3D Surface Construction Algorithm" by W. Lorensen and H. Cline.
and
"Voxel Based Object Simplification" by T. He at al.

Due Monday, April 17.
Here are the questions about these papers. Please answer each in a few sentences and submit your write-up
either electronically before 9am, Mon. 4/17/00,
or in hard copy in class at 10:40am, Mon. 4/17/00:

Questions on paper by Lorensen ... on "Marching Cubes..."

How does the algorithm explore coherence of the original data set ?
Can the algorithm guarantee water-tightness of the constructed surfaces ? How ?

Questions on paper by He ... on "... Simplification"

Is genus simplification a "good thing" ?
What is the main "control knob" for adjusting LOD ?
What is the new rendering trick introduced in this paper ?
What is the special problem encountered with data from a CT-scan ?