Patent US6545674B1 successfully refreshed from Google Patents.
US6545674B1
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US
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Method of selectively rendering graphic objects three-dimensional
Assignee: Cascade Parent Ltd
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Filing: 1999-04-13
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Granted: 2003-04-08
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Expires: 2019-04-13
Abstract
Abstract The method of selectively rendering graphic objects three-dimensional of the present invention is realized by acquiring a relative position between each pixel of the 2-D graphic object and the outer closed curve vout through the definition of an internal closed curve vin and an outer closed curve vout. Then, by selecting with a mask the area to display 3-D effects, a directional relation is obtained. Next, z-axis parameters corresponding to each pixel are generated with an effect function and a corresponding selective 3-D graphic object is rendered based upon the 2-D graphic object and the z-axis parameters by means of ERM functions.
Inventors
- 👤 Tsung-Wei Lin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:32
CPC Classifications
G; G06; G06T; G06T17/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
145 words
A method of selectively rendering a 2-D graphic object having a plurality of closed curves three-dimensional; said method comprising the following steps of: (a) defining said closed curves as a unique outer closed curve and at least one inner closed (b) determining a mask to select a portion of said 2-D graphic object to be displayed in 3-D effects; (c) acquiring a directional relation in selective response to said mask and one selected from the group consisting of at least one portion of said outer closed curve and at least one portion of said inner closed curve, said directional relation addressing relative position between pixels and said selected curve; (d) generating z-axis parameters corresponding to pixels of said 2-D graphic object in response to said directional relation; and (e) generating a 3-D graphic object in response to said 2-D graphic object and said z-axis parameters.
Claim 2
Independent Claim
145 words
A method of selectively rendering a 2-D graphic object having a plurality of closed curves three-dimensional; said method comprising the following steps of: (a) defining said closed curves as a unique outer closed curve and at least one inner closed (b) determining a mask to select a portion of said 2-D graphic object to be displayed in 3-D effects; (c) acquiring a directional relation in selective response to said mask and one selected from the group consisting of at least one portion of said outer closed curve and at least one portion of said inner closed curve, said directional relation addressing relative position between pixels and said selected curve; (d) generating z-axis parameters corresponding to pixels of said 2-D graphic object in response to said directional relation; and (e) generating a 3-D graphic object in response to said 2-D graphic object and said z-axis parameters.
Claim 3
Dependent Claim
17 words
The method as claimed in claim 1 , wherein step (a) is performed with an edge list.
Claim 4
Dependent Claim
33 words
The method as claimed in claim 1 , wherein said portion to be displayed in 3-D is an area confined by said outer closed curve and said at least one inner closed curve.
Claim 5
Dependent Claim
18 words
The method as claimed in claim 3 , wherein step (b),is performed in response to said closed curves.
Claim 6
Dependent Claim
28 words
The method as claimed in claim 1 , wherein said portion to be displayed in 3-D is an area confined by said at least one inner closed curve.
Claim 7
Dependent Claim
23 words
The method as claimed in claim 5 , wherein step (b) is performed in response to said at least one inner closed curve.
Claim 8
Dependent Claim
28 words
The method as claimed in claim 1 , wherein said directional relation defines relative positions of said outer closed curve closest to pixels of said 2-D graphic object.
Claim 9
Dependent Claim
17 words
The method as claimed in claim 1 , wherein step (d) is accomplished with an effect function.
Claim 10
Dependent Claim
25 words
The method as claimed in claim 8 , wherein said effect function renders said z-axis parameters responsive to a relation limit and a contour curve.
Claim 11
Dependent Claim
45 words
The method as claimed in claim 1 , wherein steps (b) through (e) will not be performed when it is determined in step (a) that one or both of said unique outer closed curve and said at least one inner closed curve are not present.
References Cited (Backward Citations)
US5828380A
Cited
US6204860B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-04-07 | 2006-10-07 | 2007-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-04-07 | 2010-10-07 | 2011-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-04-07 | 2014-10-07 | 2015-04-08 | $7700.00 | Window Closed / Lapsed |