Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1994-12-09
1997-07-15
Powell, Mark R.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
345118, 364267, 395701, 395704, 395966, G06T 1100
Patent
active
056490852
ABSTRACT:
A method and system of displaying system operation trace information are provided which include displaying a window within the display device of a computer and displaying an axis within the window having points along it which correspond to time. Graphical objects, corresponding to event-pairs selected from the trace of system operation, are then displayed in relation to the axis such that the position of a graphical object in relation to the axis is indicative of the starting and ending time of the corresponding event-pair. In response to a new event-pair having a starting time nested within a previously inserted event-pair and preceding an ending time of a third event-pair having a nesting depth identical to the new event-pair, a graphical object representing the new event-pair is automatically displayed adjacent to the graphical object representing the prior event-pair such that the graphical object representing the new event-pair is not visually obscured by the graphical object representing the third event-pair. In a second aspect of the invention, a new event-pair is inserted into the data structure storing system operation trace data. Start times of event-pairs within the data structure are examined to determine second and third event-pairs having start times immediately preceding and immediately following the new event-pair's start time, respectively. The new event-pair is then inserted into the data structure, wherein relationships between event-pairs are specified according to a predetermined set of rules.
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IBM Technical Disclosure Bulletin vol. 36, No. 07 Jul. 1993 pp. 547-557 T.F. Lehr.
Tehodore Franklin Lehr, "Data Structure and Insertion Algorithm for Representing Asynchronous Occurrences for Visualization by Trace Visualization Tools Using Ghant Charts With Occurrence Hierarchies", Jul. 1993, vol. 36, No. 07, pp. 547-557.
Dillon Andrew J.
Henkler Richard A.
International Business Machines - Corporation
Kovalick Vincent E.
Powell Mark R.
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