EP0194442A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for manipulation of graphic sub-objects in an interactive draw graphic system
Assignee: International Business Machines Corp
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Filing: 1986-02-05
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Granted: —
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Expires: 2006-02-05
Abstract
Abstract A method for editing sub-objects in an interactive draw graphic application which allows the operator to apply the edit action to the sub-object without affecting the rest of the object. Vertices of the object that are defined by the adjacent common end points of the sub-object are assigned attributes that either permit or prevent the end points from being separated during the sub-object editing process. If the end points are permitted to separate, actual separation is determined by the operator during the sub-object selection action and is based upon whether the point of selection is in the center third of the sub-object or the end third of the sub- object adjacent the vertex to be separated.
Inventors
- 👤 Carol Sue Himelstein
- 👤 John Shinynan Wang
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 07:57
CPC Classifications
G; G06; G06T; G06T11/00; G06T19/00; G06T19/20; G06T2219/00; G06T2219/20; G06T2219/2021
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
92 words
A method for editing a sub-object of a graphic object displayed in an interactive draw graphic system in which said object has at least one vertex and a pair of selectable line segment sub-objects which define said vertex, said method including the steps of; a) assigning to said vertex an attribute which permits said vertex to break' during a sub-object editing action, and b) selecting said line segment sub-object at a different point along the length of said line segment depending upon the modification desired on said sub-object by said editing action.
Claim 2
Independent Claim
92 words
A method for editing a sub-object of a graphic object displayed in an interactive draw graphic system in which said object has at least one vertex and a pair of selectable line segment sub-objects which define said vertex, said method including the steps of; a) assigning to said vertex an attribute which permits said vertex to break' during a sub-object editing action, and b) selecting said line segment sub-object at a different point along the length of said line segment depending upon the modification desired on said sub-object by said editing action.
Claim 3
Dependent Claim
48 words
2 The method recited in Claim 1 in which said graphic object comprises a plurality of line segment sub-objects and a corresponding plurality of vertices, and said step of assigning an attribute to said vertex further includes the step of assigning the same attribute to all said vertices.
Claim 4
Dependent Claim
82 words
The method recited in Claim 2 in which said step of selecting a line segment sub-object includes the step of positioning a cursor adjacent to said select-able sub-object and signaling said system to select said sub-object-4. The method recited in Claim 3 in which said cursor is a pointing cursor, said step of positioning includes the movement of a cursor control mouse' device by the operator of said system, and said step of signaling involves actuating a button on said mouse' device.
Claim 5
Dependent Claim
41 words
The method recited in Claim 4 in which said selecting step selects said line segment at a point in the middle third portion of said line segment when the modification desired involves separating said sub-object from the rest of said object.
Claim 6
Dependent Claim
22 words
The method recited in Claim 5 in which verti-ces associated with the selected sub-object break' during the editing action on said sub-object-
Claim 7
Dependent Claim
36 words
The method recited in Claim 4 in which said selecting step selects said line segment at an end third portion when the modification desired is to-µbreak' only the one vertex associated with said end third portion.
Claim 8
Dependent Claim
23 words
The method recited in Claim 7 in which said modification involves movement of said selected sub-object without moving any of the non-selected sub-objects.
Claim 9
Dependent Claim
33 words
The method recited in Claim 8 in which said movement of said selected sub-object involves a pivoting motion of said sub-object about and end point associated with the vertex that did not break'.
Claim 10
Dependent Claim
46 words
1 0. A method of editing a sub-object of a graphic object having a plurality of sub-objects and a plural-ity of vertices including the step of selecting a sub-object at a predetermined point and pivoting said sub-object about an end point without altering any other sub-object.
Claim 11
Dependent Claim
46 words
1 0. A method of editing a sub-object of a graphic object having a plurality of sub-objects and a plural-ity of vertices including the step of selecting a sub-object at a predetermined point and pivoting said sub-object about an end point without altering any other sub-object.
Claim 12
Dependent Claim
50 words
The method recited in Claim 9 in which said step of assigning said attribute also includes the step of selectively assigning a stay attached' attribute to each vertex so that said editing action on said selected sub-object modifies the other sub-objects which have end points attached to the selected sub-object
Claim 13
Dependent Claim
31 words
The method recited in Claim 11 in which said step of editing said selected sub-object causes said attached non-selected sub-objects to rubber-band' to conform to the movement of said selected sub-object.
References Cited (Backward Citations)
No citation records indexed.
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