LEDAS Supports Research on Future CAD at Purdue University

Constraint-driven beautification of freehand sketches is the key for building robust sketch understanding systems and sketch-based interfaces for CAD

Novosibirsk, Russia, August 10, 2009 – LEDAS Ltd., an independent provider of computational components and software development services for the CAD/PLM (Computer-Aided Design and Product Lifecycle Management) market, today announced that ongoing research at Purdue University (USA) in the field of CAD user interfaces, partially supported by LEDAS, has recently resulted in creation of a prototype CAD system that allows users to draw as natural as possible just as one would draw on paper.

In 2007 LEDAS granted a free academic license for its geometric constraint solver LGS 2D to Purdue University. Since then a research group under supervision of Prof. Karthik Ramani has successfully integrated LGS 2D with their prototype with presenting the results at two scientific events. The first presentation was done at the Sixth Eurographics Workshop on Sketch-Based Interfaces and Modeling, Aug 1-2, New Orleans, USA, co-located with SIGGRAPH 2009. Another paper will appear in the proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2009, August 30 - September 2, 2009, San Diego, CA, USA.

“Beautification of freehand sketches is integral for building robust sketch understanding systems and sketch-based interfaces for CAD,” said Sundar Murugappan, a Ph.D. student and co-author in both the publications. Professor Ramani added that “Many of the current methods for beautification do not consider some important information implied in the sketches such as spatial relationships (geometric constraints) between primitives. We present our ongoing work, a suggestive interface for constraint-driven beautification of freehand sketches which provides multiple interpretations of the freehand input, from which the user can choose the intended result.” The research was supported by the U.S. National Science Foundation (NSF) Computer and Information Science in Engineering (CISE) – Information and Intelligent Systems (IIS).

“Purdue University is famous for its world leading researchers in the field of computer-aided design and geometric constraint solving, and we are very proud to support their research aimed at building user interfaces for tomorrow’s CAD systems,” said David Levin, CEO and founder, LEDAS Ltd. “We are also supporting several universities in Russia and China by granting them free academic licenses for our computational software. A combination of our industrial experience in the field of constraint-based design with state-of-the art research results in invention of the new generation CAD systems.”

In the framework of its academic licensing program LEDAS grants free licenses for 2D and 3D versions of its geometric constraint solvers LGS to non-commercial Academic and Educational organizations. A Free Academic Licensing approach gives researchers and students a unique opportunity to access this state-of-the art parameterization technology.

About LGS 2D

The LGS 2D geometric constraint solver is a computational module, engineered to support two-dimensional history-free parametric design in CAD and computer graphics systems, as well as many other applications that require geometric and dimensional relationships to be set between geometrical objects. LGS 2D supports creation and modification of geometric models by means of (explicit or implicit) constraints, which are solved simultaneously. To learn more about LGS 2D, visit LEDAS web-site at http://ledas.com/products/lgs2d/


LEDAS Ltd. is an independent software development company founded in 1999; it is based in Novosibirsk Scientific Centre (Akademgorodok), Siberian Branch of the Russian Academy of Science. A leader in constraint-based technologies, LEDAS is a well-known provider of computational software components for PLM (Product Lifecycle Management) solutions: geometric constraint solvers for CAD/CAM/CAE, optimization engines for Project Management, Work Scheduling and Meeting Planning as well as interval technologies for Knowledge-Based Engineering and Collaborative Design. The company also provides services for PLM market: software development, consulting, reselling as well as education and training. More information about LEDAS is available at http://www.ledas.com


LEDAS Marketing Department 
phone: +7 383 3356 504 
fax: +7 383 3356 256 
Email Contact

Read the complete story ...

Review Article Be the first to review this article

Autodesk University 2017

Featured Video
MCAD Corporate Newsletter
rss feed
Jeff RoweJeff's MCAD Blogging
by Jeff Rowe
NVIDIA’s AI Computer Drives AVs
Senior Mechanical Engineer for Albert Kahn and Associates at Detroit, MI
Mechanical Engineer for The Planate Management Group LLC at Perry Point, MD
Structural Engineer for Albert Kahn and Associates at Detroit, MI
GIS Software Developer for UDC at Englewood, CO
GIS Analyst for G2 Partners LLC at San Ramon, CA
Upcoming Events
ASSESS 2017 CONGRESS at Bolger Center Potomac MD - Nov 1 - 3, 2017
FABTECH 2017 at McCormick Place Chicago IL - Nov 6 - 9, 2017
ATX MINNEAPOLIS 2017 at Minneapolis MN - Nov 8 - 9, 2017
2017 China Chongqing International Machine Tool Show (CCIMT) at Chongqing International Expo Center, Yubei Chongqing China - Nov 13 - 16, 2017

Internet Business Systems © 2017 Internet Business Systems, Inc.
25 North 14th Steet, Suite 710, San Jose, CA 95112
+1 (408) 882-6554 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering EDACafe - Electronic Design Automation GISCafe - Geographical Information Services TechJobsCafe - Technical Jobs and Resumes ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy PolicyAdvertise