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A system of solid modelling for low cost CAD systems
Literature reviews Modelling techniques Green, M and Sun, H 'A language and system for procedural modeling and motion' IEEEComput. Graph. Appl. Vol 8 No 6 (1988) pp 52-64 A special-purpose programming language called MML, which is an extension of C, is used to specify both the model and the motion of objects in it. A motion specification technique is also described. The language was developed for procedural models and is particularly well suited to modelling natural phenomena. Yeh, Z and Yin8~ D 'An automated interface between CAD and CAM' Comput. Graph. Vol 12 No 3/4 (1988) pp 349-357 A way of linking solid models to machinable models is presented. A model is represented as polyhedra with triangulated surfaces. The triangles are then scanned to generate a cutting path. However, to get the optimum cutting path still requires human interaction with the computer. The authors hope to implement an expert system to make the system less dependent on intervention.
Klimov, V E, Klishin, V V, Nedev, A V and Terenliev, A S 'A system of solid modellingfor low cost CAD systems' Comput. Graph. Vol 12 No 3/4 (1988) pp 407-413 An open and portable modelling system, called SIMAK, is described. It is a GKS-based implementation in an attempt to make data easily transferrable from CAD to CAM systems. It has been developed as a geometric modelling kernel for use in integrated CAD/CAM systems. The software is based on modular Fortran programs.
Siska, J C, Episona, R H, Trevino, D A, Rodriguez, J, Sanchez, J D and Ramirez, H '3D solid modelling software development for industrial and academic purposes' Cornput. Graph. Vo112 No 3/4 (1988)pp 381-389 The development of a 3D solid modelling system, ADROS (Advanced Design Result Oriented System) is discussed. ADROS is composed of two modules for 2D and 3D modelling.
Zhu, Y, Peng, Q and Liang, Y 'PERIS: a programming environment for realistic image synthesis' Comput. Graph. Vol 12 No 3/4 (1988) pp 299-307 PERISoffers tools for both geometric modelling and for image rendering. Objects can be
184
described using solid or surface modelling operations. Natural objects are represented by procedural models, Two levels of interface are offered to the user - fast, but less realistic images or slow, but high quality realistic images. Scanline rendering, ray tracing and two way ray tracing are all available. A new illumination model is also introduced.
Xue, J-L and Hong~X-L 'A new data structure for representing ceil hierarchy in layout design' Comput. Graph. Vo112 No 3/4 (1988) pp 341 348 A hierarchical linked list that represents the cell hierarchy for a VLSI layout has been developed as part of Maple, which is a software package for laying out large scale MOS integrated circuits.
Electronic design automation Schuck, J, Wehn, N and Glesner, M 'ALGIC a silicon compiler system for digital signal
Knowledge-based systems
processing' Comput.-Aided Eng. J. Vol 5 No 5 (1988) pp 191-199
Pegler, H C and Kochhar, A K 'Aspects of a
The automated layout generation for integrated circuits (ALGIC) silicon compiler system is described and examples of its use are given. ALGIC generates the layout of a digital VLSI circuit from a basic description of the circuit.
Baden Fuller, A J 'Computer design of electronic circuits' Comput.-Aided Eng. J. Vol 5 No 5 (1988) pp 184-190 A program that designs electrical circuits to meet a target performance is described. The program works by adding or removing components to a simple starting circuit in an apparently random manner. The number of nodes in the circuit is minimized as part of the optimization process. The design of components for microwave integrated circuits and wideband microwave transistor amplifiers are given as examples of the program's performance.
Sydenham, P H and Jain, L C 'CAENIC usercharacterised, electronic systems development software' Comput.-Aided Eng. J. Vol 5 No 5 (1988) pp 200-205 The CAENICproject aims to allow electronic systems to be designed automatically from a user's operational specifications. The concept and methodology of such a system are discussed in this paper.
Caudillo, R J and Sanchez, R 'Interactive graphic editor for circuit design' Comput. Graph. Vol 12 No 3/4 (1988) pp 365-369 The implementation of a CAD system for the Mexican Telephone Administration is described. This system was developed to help in the design of electrical diagrams and printed circuit boards. The graphics package consists of two graphic editors and one autorouter.
knowledge-based tool for manufacturing systems design' Comput.-Integrated Manuf. Syst. Vo[ 1 No 4 (1988) pp 221-227 The problems involved in the design of manufacturing systems are outlined. A number of knowledge-based aids for designing production systems are discussed. A tool for redesigning manufacturing systems that has been developed by the authors is described. This tool consists of a collection of rules relating to various aspects of the design task, and inferencing and explanation procedures written in Prolog. Examples of operation relating to the introduction of just-in-time production methods are given.
Sydenham, P H, Morgan, N A and Anfiteatro, M 'Thermocouple temperature sensor CAD tool' Comput,-Aided Eng. J. Vol 5 No 5 (1988) pp 206 210 A knowledge-based CAD tool for thermocouple temperature sensors is described. The tool is designed to use natural language to communicate effectively with inexperienced computer users.
Jain, D and Mahe, M-L 'Combining expert systems and CAD techniques' Microcomput. Civil Eng. Vol 3 No 4 (1988) pp 321-331 Integrating expert systems and CAD techniques raises problems of design representation. Various implementations are considered in an attempt to illustrate different approaches to the problems of integration.
Fazio,
P, Bedard,
C
and
Gowri,
K
'Knowledge-based system development tools for processing design specifications' Microcomput. Civil Eng. Vol 3 No 4 (1988) pp 333-344 Seven knowledge-based system development tools are evaluated and the suitability of each environment for design assistance by processing code specifications is assessed by means of prototype design applications.
c o m p u t e r - a i d e d design
Klimov, V E, Klishin, V V, Nedev, A V and Terenliev, A S 'A system of solid modellingfor low cost CAD systems' Comput. Graph. Vol 12 No 3/4 (1988) pp 407-413 An open and portable modelling system, called SIMAK, is described. It is a GKS-based implementation in an attempt to make data easily transferrable from CAD to CAM systems. It has been developed as a geometric modelling kernel for use in integrated CAD/CAM systems. The software is based on modular Fortran programs.
Siska, J C, Episona, R H, Trevino, D A, Rodriguez, J, Sanchez, J D and Ramirez, H '3D solid modelling software development for industrial and academic purposes' Cornput. Graph. Vo112 No 3/4 (1988)pp 381-389 The development of a 3D solid modelling system, ADROS (Advanced Design Result Oriented System) is discussed. ADROS is composed of two modules for 2D and 3D modelling.
Zhu, Y, Peng, Q and Liang, Y 'PERIS: a programming environment for realistic image synthesis' Comput. Graph. Vol 12 No 3/4 (1988) pp 299-307 PERISoffers tools for both geometric modelling and for image rendering. Objects can be
184
described using solid or surface modelling operations. Natural objects are represented by procedural models, Two levels of interface are offered to the user - fast, but less realistic images or slow, but high quality realistic images. Scanline rendering, ray tracing and two way ray tracing are all available. A new illumination model is also introduced.
Xue, J-L and Hong~X-L 'A new data structure for representing ceil hierarchy in layout design' Comput. Graph. Vo112 No 3/4 (1988) pp 341 348 A hierarchical linked list that represents the cell hierarchy for a VLSI layout has been developed as part of Maple, which is a software package for laying out large scale MOS integrated circuits.
Electronic design automation Schuck, J, Wehn, N and Glesner, M 'ALGIC a silicon compiler system for digital signal
Knowledge-based systems
processing' Comput.-Aided Eng. J. Vol 5 No 5 (1988) pp 191-199
Pegler, H C and Kochhar, A K 'Aspects of a
The automated layout generation for integrated circuits (ALGIC) silicon compiler system is described and examples of its use are given. ALGIC generates the layout of a digital VLSI circuit from a basic description of the circuit.
Baden Fuller, A J 'Computer design of electronic circuits' Comput.-Aided Eng. J. Vol 5 No 5 (1988) pp 184-190 A program that designs electrical circuits to meet a target performance is described. The program works by adding or removing components to a simple starting circuit in an apparently random manner. The number of nodes in the circuit is minimized as part of the optimization process. The design of components for microwave integrated circuits and wideband microwave transistor amplifiers are given as examples of the program's performance.
Sydenham, P H and Jain, L C 'CAENIC usercharacterised, electronic systems development software' Comput.-Aided Eng. J. Vol 5 No 5 (1988) pp 200-205 The CAENICproject aims to allow electronic systems to be designed automatically from a user's operational specifications. The concept and methodology of such a system are discussed in this paper.
Caudillo, R J and Sanchez, R 'Interactive graphic editor for circuit design' Comput. Graph. Vol 12 No 3/4 (1988) pp 365-369 The implementation of a CAD system for the Mexican Telephone Administration is described. This system was developed to help in the design of electrical diagrams and printed circuit boards. The graphics package consists of two graphic editors and one autorouter.
knowledge-based tool for manufacturing systems design' Comput.-Integrated Manuf. Syst. Vo[ 1 No 4 (1988) pp 221-227 The problems involved in the design of manufacturing systems are outlined. A number of knowledge-based aids for designing production systems are discussed. A tool for redesigning manufacturing systems that has been developed by the authors is described. This tool consists of a collection of rules relating to various aspects of the design task, and inferencing and explanation procedures written in Prolog. Examples of operation relating to the introduction of just-in-time production methods are given.
Sydenham, P H, Morgan, N A and Anfiteatro, M 'Thermocouple temperature sensor CAD tool' Comput,-Aided Eng. J. Vol 5 No 5 (1988) pp 206 210 A knowledge-based CAD tool for thermocouple temperature sensors is described. The tool is designed to use natural language to communicate effectively with inexperienced computer users.
Jain, D and Mahe, M-L 'Combining expert systems and CAD techniques' Microcomput. Civil Eng. Vol 3 No 4 (1988) pp 321-331 Integrating expert systems and CAD techniques raises problems of design representation. Various implementations are considered in an attempt to illustrate different approaches to the problems of integration.
Fazio,
P, Bedard,
C
and
Gowri,
K
'Knowledge-based system development tools for processing design specifications' Microcomput. Civil Eng. Vol 3 No 4 (1988) pp 333-344 Seven knowledge-based system development tools are evaluated and the suitability of each environment for design assistance by processing code specifications is assessed by means of prototype design applications.
c o m p u t e r - a i d e d design