| http://www.w3.org/ns/prov#value | - Further, in order that patterns may be indicated and selected on the display image by means of a pointing device such as a mouse or the like, there is generally used a method by which an intersection is to be sought between the costituent line segments of a pattern and a region including a permissible error range, having an indicated point as a center (Japanese Patent Laid-open No. 249269/1988).
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