DE3786408D1 - CONTROLLING A GENERATOR OF GRAPHIC PRESENTATIONS WITH VECTORS. - Google Patents

CONTROLLING A GENERATOR OF GRAPHIC PRESENTATIONS WITH VECTORS.

Info

Publication number
DE3786408D1
DE3786408D1 DE8787300126T DE3786408T DE3786408D1 DE 3786408 D1 DE3786408 D1 DE 3786408D1 DE 8787300126 T DE8787300126 T DE 8787300126T DE 3786408 T DE3786408 T DE 3786408T DE 3786408 D1 DE3786408 D1 DE 3786408D1
Authority
DE
Germany
Prior art keywords
values
controlling
vector
generator
vectors
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 - Fee Related
Application number
DE8787300126T
Other languages
German (de)
Other versions
DE3786408T2 (en
Inventor
James Corona
Terence Wallace Lindgren
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
Application granted granted Critical
Publication of DE3786408D1 publication Critical patent/DE3786408D1/en
Publication of DE3786408T2 publication Critical patent/DE3786408T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Generation (AREA)
  • Complex Calculations (AREA)

Abstract

The vector generator includes apparatus for setting up the generator and computes values representative of difference functions between Delta Y values and Delta X values for a vector to be drawn. The computer values are stored and a sign for each of the difference functions is stored for controlling XY swap and multiplex operations. A swap unit swaps X values and Y values in response to the store sign to present a larger of an X function or a Y function to a controller for controlling a number of iterations in generation of a vector. An iteration counter controls a number of iterations in generation of a vector.
DE19873786408 1986-01-17 1987-01-08 Control of a generator of graphic representations with vectors. Expired - Fee Related DE3786408T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82076386A 1986-01-17 1986-01-17

Publications (2)

Publication Number Publication Date
DE3786408D1 true DE3786408D1 (en) 1993-08-12
DE3786408T2 DE3786408T2 (en) 1994-01-20

Family

ID=25231661

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873786408 Expired - Fee Related DE3786408T2 (en) 1986-01-17 1987-01-08 Control of a generator of graphic representations with vectors.

Country Status (4)

Country Link
EP (1) EP0229694B1 (en)
JP (1) JPS62165280A (en)
CA (1) CA1263775A (en)
DE (1) DE3786408T2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06342474A (en) * 1992-12-11 1994-12-13 Nec Corp Area plotting system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272808A (en) * 1979-05-21 1981-06-09 Sperry Corporation Digital graphics generation system
JPS60252950A (en) * 1984-05-29 1985-12-13 Yokogawa Hokushin Electric Corp Generation of digital segment signal

Also Published As

Publication number Publication date
EP0229694A3 (en) 1990-11-22
DE3786408T2 (en) 1994-01-20
CA1263775A (en) 1989-12-05
EP0229694A2 (en) 1987-07-22
EP0229694B1 (en) 1993-07-07
JPS62165280A (en) 1987-07-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee