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
Links
- -1 Polyethylene Polymers 0.000 title 1
- 239000004698 Polyethylene Substances 0.000 title 1
- 229920000573 polyethylene Polymers 0.000 title 1
- 239000000203 mixture Substances 0.000 abstract 1
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).
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)
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 |
-
1987
- 1987-09-23 IT IT8703619A patent/IT1213690B/en active
Cited By (4)
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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