Proceedings of the 9th annual conference on Computer graphics and interactive techniques最新文献

The Geometry Engine: A VLSI Geometry System for Graphics 几何引擎:用于图形的VLSI几何系统

Proceedings of the 9th annual conference on Computer graphics and interactive techniques Pub Date : 1982-07-01 DOI: 10.1145/800064.801272

James H. Clark

引用次数: 154

A user interface management system 一个用户界面管理系统

Proceedings of the 9th annual conference on Computer graphics and interactive techniques Pub Date : 1982-07-01 DOI: 10.1145/800064.801268

D. Kasik

引用次数: 142

A new general triangulation method for planar contours 一种新的平面等高线通用三角剖分方法

Proceedings of the 9th annual conference on Computer graphics and interactive techniques Pub Date : 1982-07-01 DOI: 10.1145/800064.801264

S. Ganapathy, T. G. Dennehy

{"title":"A new general triangulation method for planar contours","authors":"S. Ganapathy, T. G. Dennehy","doi":"10.1145/800064.801264","DOIUrl":"https://doi.org/10.1145/800064.801264","url":null,"abstract":"The problem of approximating the surface spanning a given set of 3D points as a polyhedron of triangular faces (“triangulation”) is a significant one, and has many applications in the fields of computer graphics and computer vision. In this paper, several solutions to this problem are reviewed. These solutions can be grouped into two classes, and particular emphasis is given to the class of surfaces spanned by parallel planar contours. For a contour pair P0,P1,...Pm−1 and Q0,Q1,...Qn−1, a graph theoretic approach can be used to arrive at a class of solutions, each requiring exactly m+n steps to triangulate the pair. Existing methods (both rigorous and heuristic) for extracting a particular solution from this group are reviewed, and a new heuristic based on inter-contour coherence is proposed. This heuristic is being used in the field of Ultrasonic Non-destructive Evaluation to produce images of flaws in pressure vessels, and its performance is shown to compare favorably with methods of greater computational complexity. It is believed that this heuristic can also be used with success in industrial vision systems where similar contours are obtained using a laser range finder.","PeriodicalId":276450,"journal":{"name":"Proceedings of the 9th annual conference on Computer graphics and interactive techniques","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128302468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 207

Ray tracing parametric patches 光线追踪参数补丁

Proceedings of the 9th annual conference on Computer graphics and interactive techniques Pub Date : 1982-07-01 DOI: 10.1145/800064.801287

J. Kajiya

引用次数: 262

Path specification and path coherence 路径规范和路径一致性

Proceedings of the 9th annual conference on Computer graphics and interactive techniques Pub Date : 1982-07-01 DOI: 10.1145/800064.801276

K. Shelley, D. Greenberg

{"title":"Path specification and path coherence","authors":"K. Shelley, D. Greenberg","doi":"10.1145/800064.801276","DOIUrl":"https://doi.org/10.1145/800064.801276","url":null,"abstract":"This paper presents an interactive method for specifying a path in space and time through a three-dimensional environment. A sequence is generated by showing the series of views along the path. The sequence is previewed on a vector scope, and after it is interactively refined, each frame is rendered on a raster device. The path is represented by a B-spline to provide smooth, continuous motion. The timing along the path is also defined by a B-spline so that changes in velocity are smooth. The use of “path coherence” is introduced. The utilization of the available data from the a priori temporal and spatial path definition holds great promise for frame to frame coherence. The path coherence can be used to reduce the number of polygons which need to be considered in a viewed environment. This reduction makes the previewing of complex environments appear less cluttered. Furthermore, the computational expense of the culling and sorting operations in the visible line/surface determination is reduced. One sample usage of this is a tree-structured partitioned environment where the priority ordering of the environment must be changed only when the path crosses a partition boundary.","PeriodicalId":276450,"journal":{"name":"Proceedings of the 9th annual conference on Computer graphics and interactive techniques","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127165196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 37

FLAIR - user interface dialog design tool 用户界面对话框设计工具

Proceedings of the 9th annual conference on Computer graphics and interactive techniques Pub Date : 1982-07-01 DOI: 10.1145/800064.801267

P. Wong, Eric R. Reid

{"title":"FLAIR - user interface dialog design tool","authors":"P. Wong, Eric R. Reid","doi":"10.1145/800064.801267","DOIUrl":"https://doi.org/10.1145/800064.801267","url":null,"abstract":"To aid the system designers in achieving early involvement of the users, FLAIR (a user interface dialog design tool) was conceptualized and developed. FLAIR allows the designer to rapidly prototype a system's Man-Machine Interface. A system designer can select a desired mix of input/output devices ranging from voice to high resolution graphics equipment. FLAIR prompts its users with a dynamic menu according to a pre-defined English-like syntax. Commands are entered by the designer's own voice. Entered commands are validated by voice pattern recognition and command language-gating. Pointing devices are used to locate, place, and/or pick objects from the RAMTEK 9400 25” high-resolution color monitor. The graphics display portion of FLAIR is handled by a Core Standard graphics package. This particular package also fits the specific needs of FLAIR in that it makes available most of the RAMTEK 9400's hardware features. A relational DBMS has been integrated into FLAIR in order to manage system and user-defined data relationships. The user-defined data can be associated with a particular on-screen graphics symbol, and can then be queried at a later time. In addition to single graphics snapshots (or “static frames”), FLAIR allows the system designer to create command menu hierarchies for “dynamic scenarios.” This allows the designer to simulate, through client menu item selection, the system control flow. He can, in effect, create a tree of menus, traverse the tree at will, and select more menus or system actions as desired. All menus appear as sensitized areas on the graphics screen, and can be selected via any of the available input devices. It is estimated that a system designer can greatly improve his dialog design productivity by using FLAIR. The designers need not code any formal programs. The designer need not master the usage of the host computer, the graphic input/output systems, the menu controls, or the database programming before his designs are realized. FLAIR is there to assimilate, assemble, save and exercise his instructed operator dialog.","PeriodicalId":276450,"journal":{"name":"Proceedings of the 9th annual conference on Computer graphics and interactive techniques","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130005459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 48

The impact of graphics standards an American point of view (Panel Session) 从美国人的角度看图形标准的影响(小组讨论)

Proceedings of the 9th annual conference on Computer graphics and interactive techniques Pub Date : 1982-07-01 DOI: 10.1145/800064.801256

David H. Straayer, Tom Wright, T. Reed, David Shuey, Bruce Cohen, Bradford M. Smith

引用次数: 0

Special purpose automatic programming for hidden surface elimination 用于隐藏面消除的专用自动编程

Proceedings of the 9th annual conference on Computer graphics and interactive techniques Pub Date : 1982-07-01 DOI: 10.1145/800064.801277

C. Goad

引用次数: 17

A contour display generation algorithm for VLSI implementation 轮廓显示生成算法的VLSI实现

Proceedings of the 9th annual conference on Computer graphics and interactive techniques Pub Date : 1982-07-01 DOI: 10.1145/800064.801273

M. Zyda

{"title":"A contour display generation algorithm for VLSI implementation","authors":"M. Zyda","doi":"10.1145/800064.801273","DOIUrl":"https://doi.org/10.1145/800064.801273","url":null,"abstract":"Recent articles have discussed the current trend towards designing raster graphics algorithms into VLSI chips. The purpose of these design efforts is to capture some of the real-time animation capability found in vector graphics systems. Currently, real-time vector graphics animation is limited primarily to operations involving coordinate transformations. In order to enhance this animation capability, frequently encountered vector graphics algorithms that require the high speed, parallel computation capability of VLSI must be identified. Real-time contour display generation from grid data is one such algorithm. This paper describes the specifics of a contour display generation algorithm, the architectural framework of a processor that performs this algorithm and the architectural requirements of such a processor. The contouring algorithm is based on a data structure, the contouring tree, whose regularity and amenability for parallel computation make it an ideal candidate for VLSI. The architectural framework for a contouring processor chip that performs this algorithm for the real-time environment of interactive graphics is discussed, particularly the issues of memory size and data distribution. A model of the contouring process is created in order to determine the necessary physical parameters of the contouring processor in this architectural framework. Conclusions are drawn concerning the feasibility of producing a VLSI chip that performs this contouring algorithm.","PeriodicalId":276450,"journal":{"name":"Proceedings of the 9th annual conference on Computer graphics and interactive techniques","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116311143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

The detailed semantics of graphics input devices 图形输入设备的详细语义

Proceedings of the 9th annual conference on Computer graphics and interactive techniques Pub Date : 1982-07-01 DOI: 10.1145/800064.801257

D. Rosenthal, J. Michener, G. Pfaff, Rens Kessener, M. Sabin

引用次数: 59