
US Patent No: 5,437,008
Number of patents in Portfolio can not be more than 2000
Method of establishing constraints and links in a distribution frame between graphical elements and resolving the constaints
Stats
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Jul 25, 1995
Issued date -
Jun 23, 1992
filing date -
07/904,059
serial no -
In Force
status
Importance
Abstract
A user interface (UI) may be used in specifying spatial relationships between graphical elements in a graphics environment with drawing or graphical element manipulating functions. The UI interacts with the operating system through an application shell. A document engine, a graphics engine, and a constraint engine are coupled between the UI and operating system. A user may create a distribution frame with an area on a page of a document and a set of elements may be specified to be automatically linked by the distribution frame. Graphical elements positioned within the distribution frame are governed by alignment and distribution criteria. The user may select alignment and distribution criteria to determine the spatial relationships between the elements in the set and the distribution frame. One or more dimensions of the graphical elements in the distribution frame are a function of the area encompassed by the distribution frame where a user's edits to one may affect the other. Spatial relationships between graphical elements are established using unidirectional and bidirectional links between pairs of graphical elements. With a unidirectional link, a master/slave relationship is established where attempts to edit the slave graphical element in a way that affects the constraint are inhibited.
First Claim
Related Publications
International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,123,087 Geometric inference engine | 70 | 1990 | |
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| 4,974,174 Alignment method for positioning textual and graphic objects | 29 | 1989 | |
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| 5,333,254 Methods of centering nodes in a hierarchical display | 58 | 1991 | |