IT1213690B - Polyethylene pipe prodn. - Google Patents

Polyethylene pipe prodn.

Info

Publication number
IT1213690B
IT1213690B IT8703619A IT361987A IT1213690B IT 1213690 B IT1213690 B IT 1213690B IT 8703619 A IT8703619 A IT 8703619A IT 361987 A IT361987 A IT 361987A IT 1213690 B IT1213690 B IT 1213690B
Authority
IT
Italy
Prior art keywords
run
characteristic
pixel
determined
value
Prior art date
Application number
IT8703619A
Other languages
Italian (it)
Other versions
IT8703619A0 (en
Inventor
Giuseppe Tassinari
Original Assignee
Giuseppe Tassinari
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 Giuseppe Tassinari filed Critical Giuseppe Tassinari
Priority to IT8703619A priority Critical patent/IT1213690B/en
Publication of IT8703619A0 publication Critical patent/IT8703619A0/en
Application granted granted Critical
Publication of IT1213690B publication Critical patent/IT1213690B/en

Links

Abstract

The system generates a digital pixel image in a framestore memory (20) by expanding run-length encoded data stored in a command memory (22). Each pixel has a variable characteristic such as its colour, or its depth in a 3-D image. The value of the characteristic for each written pixel is determined from the run-length encoded characteristic. The value of the characteristic for each pixel in the run is determined from a reference parameter which determines the initial value of the characteristic, and a difference parameter which represents the change in the value along the length of the run. The coordinates of the pixel runs may be determined from the coordinates of a preceding run. The initial location and run length for each run are determined relative to the preceding run by delta parameters associated with the current run. The system generates linear colour blends and automatically depth-clips images being written into the framestore (20).
IT8703619A 1987-09-23 1987-09-23 Polyethylene pipe prodn. IT1213690B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT8703619A IT1213690B (en) 1987-09-23 1987-09-23 Polyethylene pipe prodn.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8703619A IT1213690B (en) 1987-09-23 1987-09-23 Polyethylene pipe prodn.

Publications (2)

Publication Number Publication Date
IT8703619A0 IT8703619A0 (en) 1987-09-23
IT1213690B true IT1213690B (en) 1989-12-29

Family

ID=11110736

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8703619A IT1213690B (en) 1987-09-23 1987-09-23 Polyethylene pipe prodn.

Country Status (1)

Country Link
IT (1) IT1213690B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2438753A (en) * 2006-06-02 2007-12-05 Boeing Co Manufacturing a duct connector using digital models

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2438753A (en) * 2006-06-02 2007-12-05 Boeing Co Manufacturing a duct connector using digital models
GB2438753B (en) * 2006-06-02 2009-04-29 Boeing Co Direct-manufactured duct interconnects
US7623940B2 (en) 2006-06-02 2009-11-24 The Boeing Company Direct-manufactured duct interconnects
US8104799B2 (en) 2006-06-02 2012-01-31 The Boeing Company Direct-manufactured duct interconnects

Also Published As

Publication number Publication date
IT8703619A0 (en) 1987-09-23

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