Hexagonal grid coordinate and the relation of the circle window and the line to be clipped are demonstrated.

首先介绍了六角网格坐标系及圆形窗口与待裁剪线段的关系。

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Lacking a computerized system to track information about power outages, LIPA relied on an outmoded system of paper maps, photos and Post-it Notes to coordinate its service efforts with National Grid.

WSJ: Blizzard Barrels Toward Area

Sweden, Denmark, Germany, the Netherlands, Luxemburg, France, the United Kingdom, Ireland, Norway and Belgium agreed to coordinate investments and project development plans to roll out the offshore wind power grid across the North Sea, the Channel, Celtic Sea and Irish Sea.

FORBES: Offshore Wind Race Accelerates Across Atlantic