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Open CASCADE S.A.(An EADS Matra Datavision
company) works towards the adoption of the OMG
CAD Services V1.0 specification within the bounds of the OMG. The joint
revised submission of CAD Services V1.0 was delivered in June 2001 by the group
of companies (NASA Glenn Research Center,
IBM, SDRC,
Unigraphics Solutions and Open
CASCADE) with a considerable support of other companies, leading in the
engineering domain. CAD Services V1.0 specification came successfuly through
the OMG FTF process and recently (April 2001) the CAD Services V1.1 Revision
Task Force (RTF) was chartered by the OMG MfgDTF
in order to finalize the specification
CAD Services proposes an
interface standard for Mechanical Computer Aided Design (CAD) systems that enable
the interoperability of CAD, Computer Aided Manufacturing (CAM) and Computer
Aided Engineering (CAE) tools. The aim is to provide users of design and
engineering systems the ability to seamlessly integrate, world class, software
across a wide variety of CAD/CAM and CAE applications through CORBA interfaces.
These standard interfaces enable a distributed product design environment that
includes a variety of CAD systems.
This proposal focuses on establishing Mechanical CAD system interfaces that
provide Geometry and Topology data to Analysis and Manufacturing applications
and tools. The intent is to establish a series of high-level engineering interfaces
that do not require low-level data structures to answer mechanical engineering
queries. To avoid many of the problems associated with data translation, this
proposal provides CORBA interfaces with consistent functionality across native
CAD implementations. To the maximum extent, all queries use native CAD system
geometry kernels and associated software as illustrated below.
Open CASCADE
implements the specification in several steps. The first step involves a prototype
implementation to verify the feasibility of the specification, find possible
problems and give a feedback to the CAD Services FTF before the final adoption.
This step was succesfuly finished in Q1 2002 and tested by many independent
companies. The next steps will provide the
complete industrialized implementation. Open CASCADE CAD Services will be implemented
on top of Open CASCADE
4.0 open source object libraries. CAD Services implementation will establish
the grounds for the testing of forthcoming OMG Solid Modeling specification.
Recently the Open Cascade
S.A. together with other companies has finalized the CAD Services V1.0 standard.
New work started to create CAD Services V1.1 with updated functionality and
small corrections. The work will be continued inside Open Cascade CAD Services
project for CAD Services V1.1 specification and its future versions. This work
assumes implementation of OMG specification with Open Cascade object
libraries in several steps:
- Working within the bounds of
the OMG Cad Services V1.1 RTF in order to tune the specification and lead
it for approval by the OMG
- Building of the prototype
version to verify the feasibility of the specification and provide
a feedback to the OMG CAD Services FTF
- Building of the industrialized
implementation which will be included in specific development projects of
the Open Cascade.
- Working on the CAD Services
V2.0 specification and the new Solid Modeling specification, declared in the OMG MfgDTF roadmap
- Building of the
industrialized implementation of CAD Services V2.0
EADS CCR (France)
will define use cases and business scenarios for usage of the CAD Services specification
in the industry in connection with the PDM Enablers specification.
The prototype version of the Open Cascade CAD Services was ready Q1 2002.To access
the version for interoperability testing purposes, please don't hesitate
to contact Mikhail Kazakov.
This
version works on the next OSs:
- Windows
(NT/2000/XP)
- Linux
Other
operating systems, such as IBM AIX, HP Unix and SGI Irix will also be available
depending on CORBA platform availability and customers requests.
Open
CASCADE CAD Services implementation involves using the OmniORB
CORBA platform.
If You're interested in this project, please contact.
Mikhail Kazakov.
OMG
CAD Services official page - OMG CAD Services V1.0 work in progress
OMG CAD Services
V1.0 specification - OMG CAD Services V1.0 last official specification
OMG CAD Services
V1.0 IDL - OMG CAD Services V1.0 last official IDL specification (Currently
inside the specification document)
OMG - official OMG site
OMG MfgDTF - official page of the OMG
Manufacturing Domain Task Force
Open CASCADE - official Open
CASCADE S.A. site