GB1387957A - System for controlling a graphic device - Google Patents

System for controlling a graphic device

Info

Publication number
GB1387957A
GB1387957A GB2712773A GB2712773A GB1387957A GB 1387957 A GB1387957 A GB 1387957A GB 2712773 A GB2712773 A GB 2712773A GB 2712773 A GB2712773 A GB 2712773A GB 1387957 A GB1387957 A GB 1387957A
Authority
GB
United Kingdom
Prior art keywords
circle
trace
radius
data
store
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2712773A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1387957A publication Critical patent/GB1387957A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/06—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
    • G09G1/08—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam directly tracing characters, the information to be displayed controlling the deflection and the intensity as a function of time in two spatial co-ordinates, e.g. according to a cartesian co-ordinate system
    • G09G1/10—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam directly tracing characters, the information to be displayed controlling the deflection and the intensity as a function of time in two spatial co-ordinates, e.g. according to a cartesian co-ordinate system the deflection signals being produced by essentially digital means, e.g. incrementally

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Generation (AREA)
GB2712773A 1972-06-30 1973-06-07 System for controlling a graphic device Expired GB1387957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26780072A 1972-06-30 1972-06-30

Publications (1)

Publication Number Publication Date
GB1387957A true GB1387957A (en) 1975-03-19

Family

ID=23020171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2712773A Expired GB1387957A (en) 1972-06-30 1973-06-07 System for controlling a graphic device

Country Status (5)

Country Link
US (1) US3789200A (en:Method)
JP (1) JPS5311332B2 (en:Method)
DE (1) DE2332818A1 (en:Method)
FR (1) FR2191783A5 (en:Method)
GB (1) GB1387957A (en:Method)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029947A (en) * 1973-05-11 1977-06-14 Rockwell International Corporation Character generating method and system
US3925765A (en) * 1973-10-29 1975-12-09 Hughes Aircraft Co Digital raster rotator
US3952297A (en) * 1974-08-01 1976-04-20 Raytheon Company Constant writing rate digital stroke character generator having minimal data storage requirements
US3984664A (en) * 1975-01-20 1976-10-05 Hughes Aircraft Company Digital system for generating a circle on a raster type television display
US4296930A (en) * 1975-11-26 1981-10-27 Bally Manufacturing Corporation TV Game apparatus
US4115863A (en) * 1976-12-07 1978-09-19 Sperry Rand Corporation Digital stroke display with vector, circle and character generation capability
US4146925A (en) * 1977-08-04 1979-03-27 Smiths Industries, Inc. Graphics generator
US4181956A (en) * 1977-11-07 1980-01-01 General Signal Corporation Digital indicia generator employing compressed data
US4475172A (en) * 1978-05-30 1984-10-02 Bally Manufacturing Corporation Audio/visual home computer and game apparatus
USRE30679E (en) * 1979-06-14 1981-07-14 Rockwell International Corporation Character generating method and system
JPS578584A (en) * 1980-06-18 1982-01-16 Nippon Electric Co Video controller
US4371933A (en) * 1980-10-06 1983-02-01 International Business Machines Corporation Bi-directional display of circular arcs
JPS5857186A (ja) * 1981-09-30 1983-04-05 富士通株式会社 デイスプレイ表示装置
US4674058A (en) * 1981-12-07 1987-06-16 Dicomed Corporation Method and apparatus for flexigon representation of a two dimensional figure
US4620287A (en) * 1983-01-20 1986-10-28 Dicomed Corporation Method and apparatus for representation of a curve of uniform width
US4692887A (en) * 1983-05-10 1987-09-08 Casio Computer Co., Ltd. Circle and circular arc generator
JPS61182093A (ja) * 1985-02-08 1986-08-14 株式会社日立製作所 図形高速描画方式
US4941116A (en) * 1988-07-15 1990-07-10 Honeywell Inc. Elliptical arc generator for display systems
GB8820778D0 (en) * 1988-09-02 1988-10-05 Renishaw Plc Setting up of quadrature signals
US5420970A (en) * 1991-03-13 1995-05-30 Martin Marietta Corporation Method for determining computer image generation display pixels occupied by a circular feature

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199111A (en) * 1962-05-21 1965-08-03 California Comp Products Inc Graphical data recorder system
GB1035047A (en) * 1963-08-07 1966-07-06 Ferranti Ltd Improvements relating to character display systems
US3555538A (en) * 1967-02-15 1971-01-12 Bunker Ramo Display apparatus
FR1512855A (fr) * 1967-02-28 1968-02-09 Gni I Pi Metall Promy Giprosta Appareil automatique pour tracer des dessins à partir d'informations codées
US3594756A (en) * 1967-12-26 1971-07-20 Sperry Rand Corp Crt curved character generator
US3702922A (en) * 1969-06-27 1972-11-14 Bausch & Lomb Control system and code for a graphical plotting machine or like apparatus
US3696391A (en) * 1969-09-19 1972-10-03 Thomson Csf T Vt Sa System for the display of synthesized graphic symbols

Also Published As

Publication number Publication date
FR2191783A5 (en:Method) 1974-02-01
US3789200A (en) 1974-01-29
DE2332818A1 (de) 1974-01-17
JPS4945643A (en:Method) 1974-05-01
JPS5311332B2 (en:Method) 1978-04-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920607