Symbolics Genera was the world's first commercial object-oriented operating system. This paper describes a few interesting aspects of Genera, recounts some experience, and offers advice to designers of future obje...
详细信息
ISBN:
(纸本)0818622652
Symbolics Genera was the world's first commercial object-oriented operating system. This paper describes a few interesting aspects of Genera, recounts some experience, and offers advice to designers of future object-oriented systems.
Inkwell, an experimental 2 1/2-D keyframe animation system, is the subject of this paper. Inkwell provides an intuitive user interface for creating and animating polygons, ellipses and splines. These primitives may be...
详细信息
Eager is a Programming by Example system for automating repetitive activities. It is connected to the HyperCard program, which runs on apple® computers. It enables users to get some of the benefits of programming...
ISBN:
(纸本)0897913833
Eager is a Programming by Example system for automating repetitive activities. It is connected to the HyperCard program, which runs on apple® computers. It enables users to get some of the benefits of programming without having to learn how to write programs. This video presents two repetitive tasks that are automated by the Eager system. The first task is to list the subject headings in a stack of mail messages. The second task extends a stack by duplicating its cards in reverse order. A conference paper in this proceedings entitled "Eager: Programming Repetitive Tasks by Example" provides a more detailed description of this system.
Eager is a Programming by Example system for the HyperCard environment. It constantly monitors the user's activities, and when it detects an iterative pattern, it writes a program to complete the iteration. Progra...
详细信息
A new progressive global illumination method is presented which produces approximate images quickly, and then continues to systematically produce more accurate images. The method combines the existing methods of progr...
详细信息
Inkwell, an experimental 2 1/2-D keyframe animation system, is the subject of this paper. Inkwell provides an intuitive user interface for creating and animating polygons, ellipses and splines. These primitives may be...
详细信息
ISBN:
(纸本)9780897914369
Inkwell, an experimental 2 1/2-D keyframe animation system, is the subject of this paper. Inkwell provides an intuitive user interface for creating and animating polygons, ellipses and splines. These primitives may be outlined and filled with a variety of patterns to create animated diagrams, graphs and charts, and simple characters and cartoons. Inkwell also has a patch primitive that facilitates deformation and animation of textured regions. The system provides editing features that include shape and timing control as well as digital filtering of parameters. Finally, Inkwell has deformation primitives that enable an animator to warp geometry in an intuitive manner. Inkwell was used to produce Pigment Promenade, a computer animated short shown at SIGGRAPH 1990.
Symbolics Genera was the world's first commercial object-oriented operating system. This paper describes a few interesting aspects of Genera, recounts some experience, and offers advice to designers of future obje...
详细信息
Symbolics Genera was the world's first commercial object-oriented operating system. This paper describes a few interesting aspects of Genera, recounts some experience, and offers advice to designers of future object-oriented systems.< >
It is noted that desktop multimedia is achievable today only if it is confined to a single personal computer using direct connections to laser disks, CD-ROMS, and other multimedia data sources. It is suggested that, i...
详细信息
It is noted that desktop multimedia is achievable today only if it is confined to a single personal computer using direct connections to laser disks, CD-ROMS, and other multimedia data sources. It is suggested that, in order to make multimedia data and services available to individuals connected via local and wide-area networks, special operating system hardware and software are needed. Special network management and services will be required to support bandwidth allocation, time (latency and synchronization) control, and data format conversion. The large bandwidths and real-time characteristics of multimedia affect network requirements. In addition, support in operating system software, dedicated hardware, application interfaces, and new internal buses are required to extend media off of the desktop and into the network.< >
This paper describes the first phase of a project to create a desktop information system for general users. The approach was to observe the problems, needs, and practices of several groups of information users, and to...
详细信息
暂无评论