NDLI: Priority windows: A device independent, vector oriented approach

Please wait, while we are loading the content...

Plants, fractals, and formal languages

Simulation of natural scenes using textured quadric surfaces

Global and local deformations of solid primitives

Computer-integrated manufacturing in Japan (Panel)

Interpolating splines with local tension, continuity, and bias control

Efficient octree conversion by connectivity labeling

Automatic synthesis of graphical object descriptions

Computing in the fast lane (Panel): Supersystems for computer graphics

A retrospective (Panel): Six perennial issues in computer graphics

A parallel processor system for three-dimensional color graphics

Chap - a SIMD graphics processor

A hardware stochastic interpolator for raster displays

International technology transfer (Panel)

Invisibility coherence for faster scan-line hidden surface algorithms

The A -buffer, an antialiased hidden surface method

An analytic visible surface algorithm for independent pixel processing

International market opportunities (Panel)

Beam tracing polygonal objects

Ray tracing with cones

Distributed ray tracing

Trends in semiconductor hardware for graphics systems (Panel)

An adaptive subdivision algorithm and parallel architecture for realistic image synthesis

Ray tracing of Steiner patches

Ray tracing volume densities

Microcomputer graphics (Panel)

A system for algorithm animation

Priority windows: A device independent, vector oriented approach

Manipulating simulated objects with real-world gestures using a force and position sensitive screen

Computer graphics in commercial and broadcast production (Panel)

Summed-area tables for texture mapping

Modeling the interaction of light between diffuse surfaces

The role and reality of graphics standards (Panel)

A family of new algorithms for soft filling

Texture synthesis for digital painting

Compositing digital images

The storage, retrieval and display of integrated graphics and text (Panel)

A programmer's interface to graphics dynamics

GKS for imaging

Nova*gks, a distributed implementation of the Graphical Kernel System

Computer graphics research in Japanese Universities

Priority windows: A device independent, vector oriented approach

Content Provider	ACM Digital Library
Author	Littlefield, Richard J.
Abstract	Priority windows are a basic tool for interactive graphics, underlying such techniques as pop-up menus and single screen viewing and control of multiple contexts. Most implementations of priority windows are raster oriented, frequently relying on special hardware capabilities such as high speed rasterops. This paper discusses an alternative approach, based on vector clipping, that works with any display device capable of drawing and erasing vectors. It has been used to implement a general purpose windowing package that supports application programs using a vector graphics model. It is device independent, running without change on a desktop computer with integral graphics and on a timesharing system with a peripheral display. In purely device independent form, windowing performance depends on host processing speed and communications bandwidth. Techniques are described for improving responsiveness by overlapping some windowing computations with the user's think time. Performance improvements based on extended device capabilities such as rectangular fill, hardware characters, and local display lists with clipping are also suggested. Presentation of this paper included a videotape showing the dynamics of one application on an HP-9000 desktop computer and on a VAX 11/780 plus Ramtek Marquis configuration.
Starting Page	187
Ending Page	193
Page Count	7
File Format	PDF
ISBN	0897911385
DOI	10.1145/800031.808597
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1984-01-01
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in