Data processing: database and file management or data structures – Database design – Data structure types
Patent
1995-12-21
1999-07-27
Hong, Stephen S.
Data processing: database and file management or data structures
Database design
Data structure types
707540, G06F 1724
Patent
active
059308133
ABSTRACT:
An improved technique for highlighting text objects accurately, reliably and quickly is disclosed. The technique minimizes the number of expensive region operations required to produce the necessary highlighting by combining bounding boxes of adjacent objects (e.g., words) using rectangle operations. The resulting rectangles are then used to form a region. The complexity of the regions is limited by limiting the number of rectangles that can be included within a region. Once a region is formed, the pixels of a display screen that are within the region are inverted to designate the objects within the region. However, before inverting the pixels, any overlap of the region with a previously highlighted region is eliminated or clipped from the region. The portion of overlap can be determined by rectangle operations instead of expensive region operations. As a result, double inverts which have plagued highlighting of having objects that can be placed at any position or rotation are eliminated in an efficient manner.
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Herskovitz Steven I.
Padgett Allan P.
Adobe Systems Incorporated
Hong Stephen S.
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