GB1359674A - Display system with circle drawing - Google Patents

Display system with circle drawing

Info

Publication number
GB1359674A
GB1359674A GB2743071A GB2743071A GB1359674A GB 1359674 A GB1359674 A GB 1359674A GB 2743071 A GB2743071 A GB 2743071A GB 2743071 A GB2743071 A GB 2743071A GB 1359674 A GB1359674 A GB 1359674A
Authority
GB
United Kingdom
Prior art keywords
polygon
counter
incremental
rom
sides
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
GB2743071A
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.)
Allard Way Holdings Ltd
Original Assignee
Elliott Brothers London Ltd
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 Elliott Brothers London Ltd filed Critical Elliott Brothers London Ltd
Priority to GB2743071A priority Critical patent/GB1359674A/en
Priority to DE19722228074 priority patent/DE2228074A1/de
Priority to IT68854/72A priority patent/IT959105B/it
Priority to FR7220829A priority patent/FR2141330A5/fr
Priority to US00262075A priority patent/US3761765A/en
Publication of GB1359674A publication Critical patent/GB1359674A/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)
  • Complex Calculations (AREA)
  • Controls And Circuits For Display Device (AREA)
GB2743071A 1971-06-11 1971-06-11 Display system with circle drawing Expired GB1359674A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB2743071A GB1359674A (en) 1971-06-11 1971-06-11 Display system with circle drawing
DE19722228074 DE2228074A1 (de) 1971-06-11 1972-06-09 Einrichtung zur sichtbaren Dar stellung, insbesondere von Linien mittels Kathodenstrahlrohre oder dergleichen
IT68854/72A IT959105B (it) 1971-06-11 1972-06-09 Sistema visualizzatore di immagini conprendente un tubo a raggi cato dici
FR7220829A FR2141330A5 (https=) 1971-06-11 1972-06-09
US00262075A US3761765A (en) 1971-06-11 1972-06-12 Crt display system with circle drawing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2743071A GB1359674A (en) 1971-06-11 1971-06-11 Display system with circle drawing

Publications (1)

Publication Number Publication Date
GB1359674A true GB1359674A (en) 1974-07-10

Family

ID=10259472

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2743071A Expired GB1359674A (en) 1971-06-11 1971-06-11 Display system with circle drawing

Country Status (5)

Country Link
US (1) US3761765A (https=)
DE (1) DE2228074A1 (https=)
FR (1) FR2141330A5 (https=)
GB (1) GB1359674A (https=)
IT (1) IT959105B (https=)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858085A (en) * 1973-07-09 1974-12-31 Us Navy Digital raster generator
US3987284A (en) * 1974-12-03 1976-10-19 International Business Machines Corporation Conic generator for on-the-fly digital television display
JPS578584A (en) * 1980-06-18 1982-01-16 Nippon Electric Co Video controller
US4486840A (en) * 1981-10-14 1984-12-04 Houdaille Industries, Inc. Computer numeric control for metal forming
US4692887A (en) * 1983-05-10 1987-09-08 Casio Computer Co., Ltd. Circle and circular arc generator
US20050264554A1 (en) * 2004-05-25 2005-12-01 Deming James L Tile based rendering of smooth points using polygons

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305841A (en) * 1963-09-30 1967-02-21 Alphanumeric Inc Pattern generator
US3411030A (en) * 1967-01-20 1968-11-12 Bunker Ramo Apparatus for generating crt deflection signals for describing a circular pattern
US3637997A (en) * 1968-12-06 1972-01-25 Tektronix Inc Graphic display system
US3659283A (en) * 1969-05-09 1972-04-25 Applied Digital Data Syst Variable size character raster display
US3660833A (en) * 1970-05-11 1972-05-02 Hewlett Packard Co System for producing characters on a cathode ray tube display by intensity controlled point-to-point vector generation
US3649819A (en) * 1970-10-12 1972-03-14 Information Int Inc Vector generator for rectangular cartesian coordinate positioning system

Also Published As

Publication number Publication date
FR2141330A5 (https=) 1973-01-19
US3761765A (en) 1973-09-25
IT959105B (it) 1973-11-10
DE2228074A1 (de) 1972-12-21

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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