JPH0523439B2 - - Google Patents

Info

Publication number
JPH0523439B2
JPH0523439B2 JP60100672A JP10067285A JPH0523439B2 JP H0523439 B2 JPH0523439 B2 JP H0523439B2 JP 60100672 A JP60100672 A JP 60100672A JP 10067285 A JP10067285 A JP 10067285A JP H0523439 B2 JPH0523439 B2 JP H0523439B2
Authority
JP
Japan
Prior art keywords
octant
point
sign
selecting
signs
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 - Lifetime
Application number
JP60100672A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61261779A (ja
Inventor
Hideaki Iida
Takeshige Mamya
Yutaka Morimoto
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
Priority to JP60100672A priority Critical patent/JPS61261779A/ja
Priority to EP86105380A priority patent/EP0201754A3/en
Priority to US06/862,901 priority patent/US4789954A/en
Publication of JPS61261779A publication Critical patent/JPS61261779A/ja
Publication of JPH0523439B2 publication Critical patent/JPH0523439B2/ja
Granted 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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/20—Function-generator circuits, e.g. circle generators line or curve smoothing circuits
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Image Generation (AREA)
  • Digital Computer Display Output (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Complex Calculations (AREA)
JP60100672A 1985-05-14 1985-05-14 二次曲線信号発生装置 Granted JPS61261779A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP60100672A JPS61261779A (ja) 1985-05-14 1985-05-14 二次曲線信号発生装置
EP86105380A EP0201754A3 (en) 1985-05-14 1986-04-18 Method for generating quadratic curve signals
US06/862,901 US4789954A (en) 1985-05-14 1986-05-13 Method for generating quadratic curve signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60100672A JPS61261779A (ja) 1985-05-14 1985-05-14 二次曲線信号発生装置

Publications (2)

Publication Number Publication Date
JPS61261779A JPS61261779A (ja) 1986-11-19
JPH0523439B2 true JPH0523439B2 (en]) 1993-04-02

Family

ID=14280252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60100672A Granted JPS61261779A (ja) 1985-05-14 1985-05-14 二次曲線信号発生装置

Country Status (3)

Country Link
US (1) US4789954A (en])
EP (1) EP0201754A3 (en])
JP (1) JPS61261779A (en])

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63186385A (ja) * 1987-01-28 1988-08-01 Mita Ind Co Ltd だ円パタ−ン発生装置
WO1989006031A2 (en) * 1987-12-18 1989-06-29 Digital Equipment Corporation Method of drawing in graphics rendering system
US4935880A (en) * 1987-12-24 1990-06-19 Digital Equipment Corporation Method of tiling a figure in graphics rendering system
US5313227A (en) * 1988-04-15 1994-05-17 International Business Machines Corporation Graphic display system capable of cutting out partial images
US4941116A (en) * 1988-07-15 1990-07-10 Honeywell Inc. Elliptical arc generator for display systems
FR2646257B1 (fr) * 1989-04-24 1991-08-23 Digital Equipment Int Procede d'affichage d'arcs de courbes parametriques polynomiales, sur un support de visualisation d'un moyen d'affichage relie a un ordinateur
US5495160A (en) * 1993-12-06 1996-02-27 Reliance Electric Company Digital sine wave generator and motor controller
US5739818A (en) * 1995-05-31 1998-04-14 Canon Kabushiki Kaisha Apparatus and method for performing perspectively correct interpolation in computer graphics
JP7172420B2 (ja) * 2018-10-15 2022-11-16 株式会社ニューフレアテクノロジー 描画データ生成方法及びマルチ荷電粒子ビーム描画装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3917932A (en) * 1970-03-24 1975-11-04 Yaskawa Denki Seisakusho Kk Generation of digital functions
JPS5386122A (en) * 1977-01-07 1978-07-29 Nippon Telegr & Teleph Corp <Ntt> Pattern signal generator
US4272808A (en) * 1979-05-21 1981-06-09 Sperry Corporation Digital graphics generation system
US4484298A (en) * 1981-04-30 1984-11-20 Yokogawa Hokushin Electric Corporation Method and device for generation of quadratic curve signal
US4692887A (en) * 1983-05-10 1987-09-08 Casio Computer Co., Ltd. Circle and circular arc generator

Also Published As

Publication number Publication date
US4789954A (en) 1988-12-06
EP0201754A3 (en) 1990-07-25
JPS61261779A (ja) 1986-11-19
EP0201754A2 (en) 1986-11-20

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