Product Data Interfaces in CAD/CAM Applications

1. Front Matter

   Pages I-XIV

   PDF

2. Introduction

   1. Front Matter

      Pages 1-1

      PDF

   2. Goals in the Application of CAD Interfaces

      • E. Vöge

      Pages 2-12

   3. Interfaces and Data Transfer Formats in Computer Graphics Systems

      • J. Encarnação

      Pages 13-33

   4. CAD/CAM: Integration in the Automobile Industry

      • H. G. Wilfert, H. Seeland

      Pages 34-62

   5. Interfaces for CAD Applications

      • K. Pasemann

      Pages 63-71

3. Graphics Systems — Graphical Standards — GKS

   1. Front Matter

      Pages 73-73

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   2. 2.1 Graphical Standards

      • G. Enderle

      Pages 74-82

   3. GKS and Intelligent Terminals

      • N. Kastner, G. Klebes

      Pages 83-92

   4. Tektronix PLOT 10 GKS — Tailored for Customer’s Needs

      • R. Putensen

      Pages 93-96

   5. Common Graphics Manager — Design Concepts

      • J. Bechlars

      Pages 97-100

   6. GKSGRAL — Software and Hardware Realizations of the Graphical Kernel System

      • N. Cullmann, G. Pfaff

      Pages 101-113

4. Initial Graphics Exchange Specifications

   1. Front Matter

      Pages 115-115

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   2. Product Data Exchange; Design and Implementation of IGES Processors

      • U. Weissflog

      Pages 116-125

   3. Experience Gained Using the IGES Interface for CAD/CAM Data Transfer

      • D. Trippner

      Pages 126-141

5. VDAFS

   1. Front Matter

      Pages 143-143

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   2. VDAFS — A Pragmatic Interface for the Exchange of Sculptured Surface Data

      • W. Renz

      Pages 144-149

   3. Approximation Methods Used in the Exchange of Geometric Information via the VDA/VDMA Surface Interface

      • H. Nowacki, L. Dannenberg

      Pages 150-159

   4. A Tentative Implementation of VDAFS

      • D. Hopert, T. Weissbarth

      Pages 160-166

   5. Implementation of a VDA Interface in the CAD System STRIM 100

      • K.-D. de Marné

      Pages 167-175

Interest in product data exchange and interfaces in the CAD/CAM area is steadi­ ly growing. The rapidly increasing graphics applications in engineering and sci­ ence has led to a great variety of heterogeneous hardware and software products. This has become a major obstacle in the progress of systems integration. To improve this situation CAD/CAM users have called for specification and imple­ mentation of standardized product data interfaces. These needs resulted in the definition of preliminary standards in this area. Since 1975 activities have been concentrated on developing standards for three major areas: - computer graphics, - sculptured surfaces, and - data exchange for engineering drawings. The Graphical Kernel System (GKS) has been accepted as an international standard for graphics programming in 1984, Y14.26M (IGES) was adopted as an American Standard in 1981 and the VDA Surface Interface (VDAFS) has been accepted by the German National Standardization Institute (DIN NAM 96.4). Although considerable progress has been achieved, the complexity of the subject and the dynamics of the CAD/CAM-development still calls for more generality and compatibility of the interfaces. This has resulted in an inter­ national discussion on further improvements of the standards. The major goal of this book is to bring together the different views and experiences in industry and university in the area of Product Data Interfaces, thereby contributing to the ongoing work in improving the state of the art.

• CAD
• CAM
• Schnitt
• Schnittstelle
• Standards
• computer graphics
• computer-aided design (CAD)
• computer-aided manufacturing (CAM)
• data exchange
• graphics programming
• programming

• Institut für Informationsverwaltung und Interaktive Systeme, FB 20 — TH Darmstadt, Darmstadt, Germany

  José Encarnação

• BMW AG CAD/CAM-Systeme (FS-30), München 40, Germany

  Richard Schuster

• BMW AG FS-3, München 40, Germany

  Ernst Vöge

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