The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 04, 2000
Filed:
Nov. 12, 1996
Dipayan Gangopadhyay, Yorktown Heights, NY (US);
Subrata Mitra, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, apparatus, and article of manufacture for laying out an arc-dominated labelled graph using a computer. The display area is divided into a two dimensional grid of rows and columns. Each node of the labelled graph is assigned to a column, and each arc of the labelled graph is assigned to a row. When laying out arcs, four conditions are observed. First, two arcs connected to the same node are assigned different rows. Second, two arcs assigned to the same row do not have an overlap in the columns. Third, an arc with a distinct source node and a destination node is represented as a line from the source node to the destination node. Fourth, an arc describing a self-loop is represented as one or more lines in the row. The invention produces graphs which have no overlapping arc labels and is scalable for large graphs by expanding the number of rows and columns.