Color is used in computergraphics to code information, to call attention to items, to signal a user, and to enhance display aesthetics, but using color effectively and tastefully is often beyond the abilities of appl...
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The authors describe QuickDraw, a typical graphics package, using OBJ2, a powerful algebraic language now in the phase of experimental use as a specification language. The results show the applicability of OBJ2 to pra...
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ISBN:
(纸本)0897912586
The authors describe QuickDraw, a typical graphics package, using OBJ2, a powerful algebraic language now in the phase of experimental use as a specification language. The results show the applicability of OBJ2 to practical problem domains and the advantages of the use of formal specification techniques brings. The authors take a critical look at the design of QuickDraw;they detect incomplete procedure definitions and find imprecise the classification of procedures.
The availability of sophisticated computational systems allows the designer to achieve a realistic evaluation of the behaviour of an offshore structure. The numerical processors will normally deal with a large amount ...
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The availability of sophisticated computational systems allows the designer to achieve a realistic evaluation of the behaviour of an offshore structure. The numerical processors will normally deal with a large amount of information regarding data and structural behavior. For efficient interpretation such information must be presented in a condensed and a suitable manner. The modern computergraphicstechniques provide a very convenient tool for such a purpose. This paper reports on the work being developed in order to integrate special graphic information processors to the ADEP system for offshore engineering. These processors are based on the modern trends in computergraphics, host computer independent at the system level and device independent by the use of graphic standards. The implementation of such processors has been tailored to operate both in batch and interactive modes, using a problem oriented language to establish communication between the graphics processor and the engineer.
techniques and tools like 1 prototyping, high-level languages and the spreading use of *** are changing the traditional role of a System Analyst. . . The application of these tools and techniques to structured systems...
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A behavioral and logic simulation system which uses extensive optimization and compilation techniques to obtain high performance is described. It incorporates data-flow analysis to optimize the evaluation of unordered...
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ISBN:
(纸本)0818688645
A behavioral and logic simulation system which uses extensive optimization and compilation techniques to obtain high performance is described. It incorporates data-flow analysis to optimize the evaluation of unordered assignment statements that define a hardware structure, and to extract clocking rules. An integral code generator produces efficient assembly code for three different machines, and an associated run-time library provides a flexible interactive debugging environment.
During the past several decades, full screen interactive programming has become essential in data processing. However, it is impossible or difficult to teach full screen interactive programs on IBM mainframes at unive...
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The need to visualize huge amounts of numerical data is exemplified in the field of meteorology, where measurements of many atmospheric parameters are routinely taken over large geographical areas for the purpose of m...
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The need to visualize huge amounts of numerical data is exemplified in the field of meteorology, where measurements of many atmospheric parameters are routinely taken over large geographical areas for the purpose of monitoring and predicting weather. computergraphics has provided and will continue to offer tools to meet this visualization challenge, principally in three areas: first, efficient graphics algorithms for displaying the data;second, novel special-purpose graphics hardware;and third, interactivetechniques for graphically manipulating the data at close to video rates. This paper reviews past and current uses of computergraphics for gaining insight from measured or modelled meteorological data.
Help provided as traditional text descriptions has become incompatible with graphical interfaces. Animation suggests a better association between help and a graphical interface. This paper describes a prototype system...
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