An Interactive Graphic Programming System for the Construction of Dynamic Simulation Models

An interactive programming system is described where human speech commands and computer graphic input-output facilities are used for the exchange of information between man and machine. The experimental problem solving environment is one of formulating, specifying, debugging and executing (algebraic) procedures interactively on a small processor. The speech recognition system is a real time, syntax directed, limited vocabulary, highly cost effective scheme specifically tailored to this environment. The data transformation operations of the language are verbally specified and the control flow is specified graphically as a two dimensional directed graph. The semantics of the latter structure is independent of the time sequence of its input. An input restricted (conditional input) pseudo-finite state machine model is used for the continuous syntax checking of the input on an atomic token basis and for directing the speech recognizer. The system has been successfully implemented on a small processor at the University of California, Berkeley.

An interactive programming system for the IBM 7545 robot

Interactive graphics in the analysis of neuronal spike train data

A virtual-physical collision detection interface for AR-based interactive teaching of robot

XPLG—Experiences in implementing an experimental interactive graphics programming system

The design of increasingly complex VLSI circuits and multilayer printed circuit boards have increased the demands on computer aided design methods including interactive graphics systems. Earlier minicomputer based systems with direct view storage tube displays lack the processing power and display characteristics that allow high degrees of interactivity and visual discrimination required for high productivity in complex design situations. Declining semiconductor RAM costs and increasing capabilities of microprocessors have allowed raster display technology to keep pace with the demands of current interactive graphics systems.The recently introduced Lexidata Graphics System 8000 combines state of the art color and black and white raster display technology with the latest microprocessor technology to provide a powerful element for the design of interactive graphics systems to meet today's greater needs. The GS8000 includes a very fast Schottky display processor to convert vectors to raster and fill areas and a 16 bit microprocessor to service interactive devices and process a world coordinate data base for editing and display. The system hardware off loads a significant processing and memory burden from the host computer allowing the use of a less powerful host or more users on a single host. An extensive software library resident in the Graphics System 8000 reduces the software development required of the user allowing him to concentrate on the applications software necessary for the creation, maintenance and non-graphic processing of his design data base on his host computer.

This article will describe an environment for developing digital artworks, named Field, that has underpinned some of the most technically challenging real-time artworks made to date. This new tool was recently released by the author under an open source license. Created to specifically support exploratory and improvisory code writing, this environment, which hybridizes text-based programming with dynamic visual metaphors, stands in contrast with the dominant tools available to digital artists today—either the graphical data-flow programming systems or the more recent interest in “live” code-based tools. Field creates an environment where the boundaries between design, development, debugging, and deployment are explicitly porous and ready to shift as the process of forming the artwork out of its formal algorithmic conception demands. This article will articulate the philosophy of this tool by comparison with programming systems, old and new, and describe in detail the ways in which code can be written in it. Examples showing how the fusion of graphical and text-based programming representations can foster specifically the practices demanded by large collaborative artworks will be drawn from the recent work of the OpenEnded Group, spanning real-time graphics, interactive performance, music, and print media.

Software applications involving interactive computer graphics are made up of several components. One of these is a data modeling component. This data modeling component is often application dependent and therefore difficult to integrate with the data model of other related applications. One solution to this problem is to interface a DBMS with an interactive graphics system to reduce data model dependency and increase sharing of data. This also has the advantage of allowing novice users to use computer graphics by eliminating the need for the user to write complex programs invoking the graphics system.This paper explores these ideas by discussing the implementation of a prototype interface between a relational DBMS and an interactive computer graphics system. It presents both the database structures used to manage the data and the techniques used to design the interface. It concludes by discussing an approach for making the interface portable.

To solve the problems of low programming efficiency and cumbersome parameter verification caused by variable dimensions in the batch processing of multi-groove shafts, a graphical automatic programming system was built based on the Fanuc 31i CNC system and Fanuc Picture development environment, integrating macro program compilation and parametric interface technologies. By extracting variable parameters of multi-groove shafts to design the interface, associating controls with macro variables via read-write functions, compiling and integrating part family macro programs, and importing data files through parameter configuration, the system enables programming and processing of dedicated shaft part families by inputting parameters graphically on the CNC interface. Practical application shows it shortens setup and debugging time, improves efficiency and safety. This technical approach provides a feasible solution for the development of dedicated CNC programming functions and is suitable for batch processing of similar parts.

The retrofitting techniques of an unnumerically controlled machine tool to NC machine tool is necessary to reconstruct a superannuated machine or to construct a special purpose machinery. The aim of the present study is to retrofit a lathe to NC lathe with an interactive programming system through a hand-made circuit. The achievement in this study are follows : (1) The problems which arise to retrofit a lathe to NC lathe are classified into each group, and the means of solving the individual problems are shown. (2) Accuracy testing and cutting performance are investigated in the retrofit NC lathe, it is confirmed that the NC lathe is a match for the NC lathe placed on the market. (3) Addition of an interactive programming system by means of personal computer enables one to easily provide NC programming and to immediately modify, edit and manage it. (4) It is verified that a feed control makes the cutting time shorter.

In this paper, the integration of an automated process-planning system with an interactive computer graphics system is presented. (The current system is capable of planning hole-making processes.) This paper discusses the graphics system, the generative automated process planning system, their interface and the possibility of interfacing with a larger CAD/CAM system. An example of planning a precision machined part is also presented.

The next generation visual programming technology (VTR), which uses so-called R-charts (ISO/IEC 8631) is defined here. R-charts - are being the oriented graphs loaded through the arcs. The main difference of VTR is its simplicity and single graphic form of the program writing during its entire life cycle, which ensures new principles of design, debugging, visual and compact (by more than one order) writing compared to writing in existing programming languages (PL). Due to its simplicity, it is acceptable to broad circle of the specialists, but not only to the programmers. Graphic paradigm of VTR is set, which is based on a single graphical shell for all existing PLs without goto, if, for, while, break, labels, brackets: begin-end, {-} etc. Evidentiary, linguistic, parallel, three- and multidimensional programming is introduced for controlling and computing systems. Colour is used extensively for writing of graphic programs. It is integrated well with available programming systems. At present, graphic programming VTR is realized in the environment Qt Creator C++ (www.glushkov.org). This allowed carrying out justified analysis of VTR advantages in comparison with traditional technologies that use modern PLs, UML, and OOP.

This paper describes the design and implementation of a state-of-the-art interactive vector graphics system connected to the CRAY-1 supercomputer. The primary design goal for this graphics system is that it support large hydrodynamic computer programs used in weapons design calculations. The interactive use of these programs requires displays consisting of up to 20,000 vectors, extensive interaction tools, and high-bandwidth communication rates. The major system components selected for this project were an Evans and Sutherland Picture System 2 and a Digital Equipment Corporation (DEC) PDP-11/70 and PDP-11/34 running the UNIX operating system.This paper presents the system design goals and performance criteria. The hardware/software systems chosen for this project are reviewed, and the integration of this system into the Los Alamos Scientific Laboratory's (LASL) Integrated Computer Network (ICN) is described. This implementation involved most areas of applied computing, including computer graphics, communications, distributed processing, and computer security. The level of effort required for this implementation is described, and the results and benefits are presented. Future plans for this system are also briefly described.

We are delighted to present the proceedings of High Performance Graphics 2013. This is the fifth year of the conference, which has become the leading international conference on graphics hardware, systems, and algorithms. The conference brings together researchers, engineers, and architects to discuss the complex interactions of parallel hardware, novel programming models, efficient graphics algorithms, and innovative applications. High Performance Graphics (HPG) was founded in 2009 to synthesize and expand on two important and well-respected conferences in computer graphics: Graphics Hardware, an annual conference focusing on graphics hardware, architecture, and systems since 1986; and Interactive Ray Tracing, an innovative symposium begun in 2006 focusing on the emerging field of interactive ray tracing and global illumination. By combining and expanding these two communities, we bring to authors and attendees the best of both fields and a conference covering a broad range of interactive 3D graphics systems and algorithm research. This year's proceedings continue to reflect this tradition of synthesis. Ray tracing has again emerged as a popular topic, and HPG 2013 includes papers on new algorithms for efficiently constructing and traversing ray tracing acceleration structures as well as complementary papers detailing specialized hardware designs for ray tracing. The conference includes papers on classic graphics hardware topics, such as advanced rasterization and real-time shadowing, as well as increasingly important topics such as interactive voxelization and reconstruction. In all 44 papers were submitted to HPG 2013, of which 15 were accepted for an acceptance rate of about 34%.

A restrained least-squares (RLS) computer program and two interactive graphics (IG) systems have been used in combination to refine the structure of deer type III hemoglobin. By alternating applications of RLS with examinations and corrections of the atomic model superposed on electron density maps (IG), the residual has been reduced from ~0.42 to ~0.25 and the sites of dubious fit between model and map reduced to ~6% of the residues or ~3% of the atoms. It was possible to fit routinely ~4600 atoms to X-ray intensity data sets ranging from less than 6000 (9.0-4.0 A resolution) to ~21 500 points (6.0-1.98 A resolution) employing RLS, which uses interatomic distances to retain structural integrity. Convergence was rapid and many shifts greater than 1 A were recorded. An in-house graphics display allowed the placement of atoms not in the original atomic model and GRIP, a fast-response interactive graphics system, was used to correct any gross conformational misfit of the atomic model to the electron density maps. The man hours needed to run both GRIP and RLS is less than previously reported real-space methods. The strategy of how RLS and IG can be best applied and how the molecular structure changed during refinement are discussed.