| 摘要 |
A region information processing system processes information concerning a plurality of objective regions in a field to produce information concerning a synthetic region to be formed by synthesizing the information concerning the objective regions. The information concerning each of the objective regions is provided by external region information source. The region information processing system comprising: A subfield designating device sequentially designates subfields each constituting part of the field, by providing, one at a time, subfield designating data. A plurality of surveying devices are each associated with a corresponding one of the regions and are each responsive to the subfield designating data for examining the region information source to produce local data of the subfield being designated concerning the associated region, the local data including at least region flag data indicating whether or not the subfield is inside the boundary of the associated region. A synthensizing device is responsive to the local data of the subfield concerning the objective regions for judging whether or not the local data of the subfield concerning the objective regions satisfy a predetermined condition to produce, depending on the result of the judgement, region flag data indicating whether or not the subfield being designated is inside the synthetic region.
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