The computer-aided fabrication environment (CAFE) is a software system being developed at MIT for use in the manufacture of integrated circuits. CAFE is intended to be used in all phases of process design, development...
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The computer-aided fabrication environment (CAFE) is a software system being developed at MIT for use in the manufacture of integrated circuits. CAFE is intended to be used in all phases of process design, development, planning, and manufacturing of integrated-circuit wafers. The CAFE architectural framework supports a wide variety of software modules, including both development tools and online applications. The key components of the CAFE architecture are the data model and database schema, the process flow and wafer representations, the user interface, and the application programming and database interfaces. All CAFE application modules store and retrieve persistent data through a common database interface layer. Interface wrappers provide seamless, transparent integration of external tools and packages which have their own internal data formats.< >
The Command Support At-Sea Experiment (CS@SE) provides experimental advanced graphics display systems consisting of large screen color displays and operator console color displays in the combat information center (CIC...
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The Command Support At-Sea Experiment (CS@SE) provides experimental advanced graphics display systems consisting of large screen color displays and operator console color displays in the combat information center (CIC) of an Aegis cruiser and in the tactical flag command center (TFCC) of an aircraft carrier. CS@SE systems are designed to prototype potential command support capabilities in an at-sea environment to validate and refine requirements for planned production system upgrades. These systems use sophisticated color graphics techniques to provide real-time tactical displays that improve the availability of information to an operator by reducing clutter through the use of color, area fill, transparen overlays and intensity coding of track symbols. Interfaces wen developed with the Aegis Display System (ADS), Shipboarc Gridlock System with Auto-correlation (SGS/AC), Flag Dats Display System (FDDS) and Tomahawk Engagement Planning and Exercise Evaluation System (TEPEE) that provided the data for the presentation of a tactical display. Display elements included both real-time and over-the-horizon (OTH) surface track data, velocity leaders, tags, uncertainty ellipses, and history trails. The display also included filled land masses, country boundaries, commercial airways, cities, graphics overlays (i.e., operational areas), weapon system missile performance contours, and engagement plans. This paper describes the experiment, its installation and integration into the shipboard environments of an Aegis cruiser (USS Leyte Gulf ) and an aircraft carrier (USS America , its usage by the ships companies and embarked staffs, and the experiment result! and findings. Key conclusions of the experiment are: 1 Advanced graphics color displays can significantly enhance the ability of the warfighter to assimilate a complex tactical display. 2 Both ships reported a requirement for a correlated OTH and real-time track display with the ability to clearly differentiate the two types
We are concerned in this paper with associations between spline curves that will hold at all in between positions when the control points of these curves are used as key points for animation or sweeping. It is establi...
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ISBN:
(纸本)0897913124
We are concerned in this paper with associations between spline curves that will hold at all in between positions when the control points of these curves are used as key points for animation or sweeping. It is established that any association between two spline curves that can be expressed as the equality of two linear mappings will hold throughout an inbetweening process provided the in betweening trajectories are coordinated splines that uniquely interpolate the contol-point key positions. Multiple associations are possible, so long as the basic requirements of linearity and coordination are observed.
At the David Sarnoff Research Center there exists a long standing research effort in support of the design of electron optic devices. The design process for such devices - the color high definition picture tube being ...
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作者：
HOWARD, TComputer Graphics Unit
Department of Computer Science University of Manchester Oxford Road Manchester M13 9PL United Kingdom
The Programmer's Hierarchical Interactive graphics System (PHIGS), currently under development by ISO, is a specification of a set of functions for device-independent computergraphics programming, supporting dyna...
The Programmer's Hierarchical Interactive graphics System (PHIGS), currently under development by ISO, is a specification of a set of functions for device-independent computergraphics programming, supporting dynamic interaction and hierarchically organised graphical data. A central aspect of an implementation of a system such as PHIGS is the provision of a compact and efficient representation for the graphical entities involved. This paper describes a centralised graphical database for KRT 3 , an experimental hierarchical graphics system based on PHIGS. It presents a discussion of the issues involved, and the experience gained, in the practical design and implementation of a database for hierarchical graphical data. A novel aspect of the design is that the database may be simultaneously shared by several application programs.
In summary, the ROSE system has been designed to allow efficiency to be combined with fiexibility for support of interactive computergraphics applications. The object paradigm is exploited throughout all aspects of t...
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Refinement is usually advocated as a means of gaining finer control over a spline curve or surface during editing. For curves, refinement is a local process. It permits the change of control vertices and subsequent ed...
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Behavioral simulation is presented as a means to obtain complex global motion by simulating simple rules of behavior between locally related actors. A test-bed which has been developed to support experimentation with ...
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