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Connected Rule

Syntax: Connected [Region region_expr] [string]

If given in the layer block, the layer or region description (which is applied to the whole layer) is tested to see that all figures are mutually connected (touch or overlap). Disjoint groups of figures are flagged as violations in the top level cell. The group with the largest area is assumed to be the ``correct'' group.

Stephen R. Whiteley 2021-01-27