JPS56152068A - Selection circuit for graphic data - Google Patents

Selection circuit for graphic data

Info

Publication number
JPS56152068A
JPS56152068A JP5389780A JP5389780A JPS56152068A JP S56152068 A JPS56152068 A JP S56152068A JP 5389780 A JP5389780 A JP 5389780A JP 5389780 A JP5389780 A JP 5389780A JP S56152068 A JPS56152068 A JP S56152068A
Authority
JP
Japan
Prior art keywords
circuit
data
arrangement
graphic data
selection
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.)
Pending
Application number
JP5389780A
Other languages
Japanese (ja)
Inventor
Tomoki Shiyudo
Nobumasa Watanabe
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 Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5389780A priority Critical patent/JPS56152068A/en
Publication of JPS56152068A publication Critical patent/JPS56152068A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects

Abstract

PURPOSE:To obtain a circuit of high-speed graphic data selection by providing an arrangement expanding circuit which calculates successively graphic data at respective arrangement element positions of an arranged pattern and a circuit which discriminates whether the graphic data touches a specified selection point or not. CONSTITUTION:The selection-point data of a pattern is sent from electronic computer 1 to discriminating circuit 3, and stored in the selection-point register of circuit 3. Next, the arrangement data of the pattern is stored in the arrangement data register in arrangement expanding circuit 2. Then, every time graphic data is sent, circuit 2 calculates each arrangement element position, which is used to convert the graphic data into new graphic data; and the new data is sent to circuit 3 at every time. At this time, arrangement position data indicating the current arrangement position is sent to computer 1 via signal line 102. Circuit 3 compares the contents of the selection-point register with the graphic data and, when the result meets requirements of selection, sends an interruption signal to computer 1 via signal line 103. Computer 1, when receiving the interruption signal, checks the arrangement position data to know the arrangement position of graphic data selected at this time.
JP5389780A 1980-04-23 1980-04-23 Selection circuit for graphic data Pending JPS56152068A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5389780A JPS56152068A (en) 1980-04-23 1980-04-23 Selection circuit for graphic data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5389780A JPS56152068A (en) 1980-04-23 1980-04-23 Selection circuit for graphic data

Publications (1)

Publication Number Publication Date
JPS56152068A true JPS56152068A (en) 1981-11-25

Family

ID=12955506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5389780A Pending JPS56152068A (en) 1980-04-23 1980-04-23 Selection circuit for graphic data

Country Status (1)

Country Link
JP (1) JPS56152068A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0486952A (en) * 1990-07-31 1992-03-19 Nec Corp Computer aided designing device
US6263477B1 (en) 1997-02-13 2001-07-17 Nec Corporation Layout information generating apparatus and method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0486952A (en) * 1990-07-31 1992-03-19 Nec Corp Computer aided designing device
US6263477B1 (en) 1997-02-13 2001-07-17 Nec Corporation Layout information generating apparatus and method thereof

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