From Russia with CAD
Press-releases      15 Jun 2009

ODA and LEDAS to Cooperate in the Development of Geometric and Dimensional Constraints in DWGdirect

Phoenix, AZ, United States and Novosibirsk, Russia, June 15, 2009 – The Open Design Alliance (ODA) and LEDAS Ltd., today announced their cooperation to develop constraint support for the DWG 2010 format in DWGdirect™.

When completed, this integration will enable ODA members who have a license for the LEDAS LGS 2D solver to add support for parametric and constraint drawing to their applications.

ODA President, Arnold van der Weide, commented, “Cooperation with LEDAS will strengthen our third party component strategy, which already includes integration solutions for HOOPS and ACIS. We are excited to give our members the opportunity to integrate DWGdirect and LGS 2D together with minimal member development effort, and we are convinced that this work will benefit existing as well as potential ODA members.

LEDAS started intensively working on the integration of the LGS 2D solver into DWGdirect in April this year and presented the first results at the ODA World Conference in Leiden, the Netherlands,” added David Levin, LEDAS CEO and founder. “DWG is obviously the most widely used file format in the CAD/CAM/CAE industry and we are excited to make our LGS 2D solver integrated with it, allowing many CAD users to exploit parametric drawing functionality at an adequate price.

About DWGdirect

DWGdirect is a development environment for creating custom CAD and technical graphics applications using the C++ and .NET development languages. It includes full support for the DWG and DXF file formats, a powerful object-oriented C++ API, and a rich feature set for editing, manipulating and rendering CAD data. DWGdirect includes support for DRX (DWGdirect Runtime eXtension) component technology, which can be used to build modular components that support custom objects and custom commands.

About LGS 2D

LGS 2D is a computational module engineered to support two-dimensional parametric sketching/drawing in CAD and computer graphics systems, as well as any other application that requires parametric connections or constraints to be set between geometric objects. LGS 2D is a cross-platform software package provided as a set of binary libraries running on 32- and 64-bit Windows, Mac OS X, Linux, *BSD, AIX, HP-UX, Sun Solaris, and other platforms. LGS 2D can be used as a self-supporting component, or jointly with LGS 3D version. Both versions have similar APIs, providing a complete parametric solution for all aspects of CAD/CAM/CAE system functionality — from 2D sketching to 3D variational direct modeling, assembly design, and kinematics simulation.

About Open Design Alliance

The Open Design Alliance is a non-profit consortium of over 2,000 software developers and users committed to promoting open, industry-standard formats for the exchange of CAD data and CAD legacy data. The ODA technology platform provides users with tools to create a wide range of applications, including custom data access and editing utilities, visualization tools, and even full-scale CAD systems. The platform also supports the use of both DWG and DGN files, with import and export capabilities to other file formats. The Open Design Alliance maintains the OpenDWG® library and publishes the OpenDWG file specification.


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 markets: software development, consulting, reselling as well as education and training. More information about LEDAS is available at

OpenDWG, DWGdirect, and DGNdirect are either trademarks or registered trademarks of the Open Design Alliance. Any other trademarks are the property of their respective owners.


Open Design Alliance
phone: +1 602 263 7666

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

See also:

Permanent link ::

ACIS offshore
24th of July, 2024


All news


All articles

© 2004-2024 LEDAS Ltd. All rights reserved.