Mark-It : a marking user interface for cutting decomposition time.

Conference · Sat May 01 04:00:00 EDT 2004

OSTI ID:957260

Yang, Nicholas C ^[1]; Garcia, Ricardo M; Shepherd, Jason Farrell; Forsberg, Andrew S ^[1]; Merkley, Karl ^[2]

---

1. Brown University, Providence, RI
2. Elemental Technologies, Inc., American Fork, UT

We present Mark-It, a marking user interface that reduced the time to decompose a set of CAD models exhibiting a range of decomposition problems by as much as fifty percent. Instead of performing about 50 mesh decomposition operations using a conventional UI, Mark-It allows users to perform the same operations by drawing 2D marks in the context of the 3D model. The motivation for this study was to test the potential of a marking user interface for the decomposition aspect of the meshing process. To evaluate Mark-It, we designed a user study that consisted of a brief tutorial of both the non-marking and marking UIs, performing the steps to decompose four models contributed to us by experienced meshers at Sandia National Laboratories, and a post-study debriefing to rate the speed, preference, and overall learnability of the two interfaces. Our primary contributions are a practical user interface design for speeding-up mesh decomposition and an evaluation that helps characterize the pros and cons of the new user interface.

• Research Organization: Sandia National Laboratories
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 957260
• Report Number(s): SAND2004-2371C
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING
99 GENERAL AND MISCELLANEOUS
EFFICIENCY
M CODES
MAN-MACHINE SYSTEMS
MESH GENERATION
THREE-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL CALCULATIONS