Meeting Agenda

Date:	March 25th
Location:	DC 1331
Time:	1:30
Chair:	Craig S. Kaplan

1. Changes to the Agenda - additions or deletions

2. Coffee Hour

Coffee hour last week:: Salmon and cookies -- yum!- thanks!
Coffee hour this week:: Volunteers?
Coffee hour next week:: Volunteers?

3. Forthcoming

Date:	April 1st	April 8th	April 15th	April 22nd
Location:	DC 1331 1:30	DC 1331 1:30	DC 1331 1:30	DC 1304 1:30
Chair:	Kate Kinnear	Ben Lafreniere	Stephen Mann	Michael McCool
Technical Presentation:	Matthew Kay	Craig Kaplan	Kate Kinnear	Ben Lafreniere

4. Technical Presentation

Marshall Hahn	Title : Simulation of 5-Axis Machining using Multi-directional Height maps Abstract: Machinists often simulate a part program to verify that it is correct, since mistakes can cause damage to the part, machine, yourself, or others.? A popular approach for 3-axis Machining simulation involves representing the stock (the material the part is being carved from) as a height map. This approach does not work for 5-axis Machining simulation, since height maps cannot represent overhangs.? In this talk, I will explain how this limitation can be removed through use of multi-directional height maps (a kd-tree where the surface contained in each cell is represented by a height map). In particular, I will focus on the overhang detection algorithm used.

Marshall Hahn

Title : Simulation of 5-Axis Machining using Multi-directional Height maps
Abstract:
Machinists often simulate a part program to verify that it is correct, since mistakes can cause damage to the part, machine, yourself, or others.? A popular approach for 3-axis Machining simulation involves representing the stock (the material the part is being carved from) as a height map. This approach does not work for 5-axis Machining simulation, since height maps cannot represent overhangs.? In this talk, I will explain how this limitation can be removed through use of multi-directional height maps (a kd-tree where the surface contained in each cell is represented by a height map). In particular, I will focus on the overhang detection algorithm used.

5. Discussion Items

Thanks to everyone for your help with the open house!

6. Action Items

7. Conferences and Special Journal Issues

Recent Additions

Upcoming Deadlines

Mar 30, 2009: Eurographics 2009 Conference
Apr 01, 2009: CAe09 Camera-ready deadline

8. Directors' Meeting

9. Seminars and Events

2009 Mar 25, 15:00 � Computer Graphics Research Group PhD Seminar: Martin Talbot, PhD candidate, David R. Cheriton School of Comp. Sci., Univ. Waterloo On the Audio Representation of Distance for Blind Users
2009 Mar 27, 13:00 � Networks and Distributed Systems Seminar: Matei Zaharia, PhD Student, UC Berkeley Cloud computing trends and research challenges
2009 Apr 01, 16:30 � Distinguished Lecture Series Seminar: Nancy Leveson, Massachusetts Institute of Technology Computers and Trust
Thursday, 26 March 2009, 3:30PM - Applied Mathematics , Math & Computer, Room 5158: Dr. Robert M. Kirby: -- Visualization of High-Order Finite Element Methods

Also see other Math and CS postings.