Fast correlation of markers with graphic entities
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United States of America Patent
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Mar 15, 1988
Grant Date -
N/A
app pub date -
Nov 3, 1986
filing date -
Nov 3, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Graphics display system having a moving cursor, such as a cursor, for selecting a displayed entity. The correlation of a cursor with an entity intended to be selected is performed by storing a unique tag assigned to each entity in a cell in a correlation array related to a pel or group of pels corresponding to locations in a bit map of the pels comprising the entity. The x,y coordinates of the cursor are converted into a cell number corresponding to the bit map locations matching such x,y coordinates. The entity tag is then retrieved from the addressed cell.
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