DE3851447T2 - Schaltung zur Feststellung eines Bogenendpunktes. - Google Patents

Schaltung zur Feststellung eines Bogenendpunktes.

Info

Publication number
DE3851447T2
DE3851447T2 DE3851447T DE3851447T DE3851447T2 DE 3851447 T2 DE3851447 T2 DE 3851447T2 DE 3851447 T DE3851447 T DE 3851447T DE 3851447 T DE3851447 T DE 3851447T DE 3851447 T2 DE3851447 T2 DE 3851447T2
Authority
DE
Germany
Prior art keywords
determining
circuit
end point
arc end
arc
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
DE3851447T
Other languages
English (en)
Other versions
DE3851447D1 (de
Inventor
Ryuji Horiguchi
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.)
NEC Electronics Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Publication of DE3851447D1 publication Critical patent/DE3851447D1/de
Application granted granted Critical
Publication of DE3851447T2 publication Critical patent/DE3851447T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/20—Drawing from basic elements, e.g. lines or circles
    • G06T11/203—Drawing of straight lines or curves

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Generation (AREA)
  • Image Analysis (AREA)
DE3851447T 1987-02-13 1988-02-15 Schaltung zur Feststellung eines Bogenendpunktes. Expired - Lifetime DE3851447T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62031024A JPH0727573B2 (ja) 1987-02-13 1987-02-13 弧の端点検出回路

Publications (2)

Publication Number Publication Date
DE3851447D1 DE3851447D1 (de) 1994-10-20
DE3851447T2 true DE3851447T2 (de) 1995-05-18

Family

ID=12319948

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3851447T Expired - Lifetime DE3851447T2 (de) 1987-02-13 1988-02-15 Schaltung zur Feststellung eines Bogenendpunktes.

Country Status (4)

Country Link
US (1) US5235678A (de)
EP (1) EP0278527B1 (de)
JP (1) JPH0727573B2 (de)
DE (1) DE3851447T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63223690A (ja) * 1987-03-12 1988-09-19 松下電器産業株式会社 楕円弧描画装置
JP2722487B2 (ja) * 1988-03-15 1998-03-04 松下電器産業株式会社 円弧・惰円弧発生装置
GB9312447D0 (en) * 1992-10-28 1993-07-28 Int Technical Illustration Co Method of tracing a drawing and apparatus for embodying the method
CN1633659A (zh) * 2002-02-15 2005-06-29 电脑联合想象公司 用于绘制椭圆弧的系统和方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586959B2 (ja) * 1976-08-20 1983-02-07 日本電信電話株式会社 曲線発生器
US4149165A (en) * 1977-12-27 1979-04-10 The United States Of America As Represented By The Secretary Of The Navy Digital plotting system for displaying curved line information
US4149164A (en) * 1977-12-27 1979-04-10 The United States Of America As Represented By The Secretary Of The Navy Digital plotting system for graphic information
US4692887A (en) * 1983-05-10 1987-09-08 Casio Computer Co., Ltd. Circle and circular arc generator
US4648049A (en) * 1984-05-07 1987-03-03 Advanced Micro Devices, Inc. Rapid graphics bit mapping circuit and method
US4674059A (en) * 1984-09-10 1987-06-16 Allied Corporation Method and apparatus for generating a set of signals representing a curve

Also Published As

Publication number Publication date
EP0278527A3 (en) 1990-06-27
EP0278527B1 (de) 1994-09-14
EP0278527A2 (de) 1988-08-17
DE3851447D1 (de) 1994-10-20
JPH0727573B2 (ja) 1995-03-29
JPS63198172A (ja) 1988-08-16
US5235678A (en) 1993-08-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: NEC ELECTRONICS CORP., KAWASAKI, KANAGAWA, JP