ReQL command: polygon_sub

Command syntax

polygon1.polygon_sub(polygon2) → polygon

Description

Use polygon2 to “punch out” a hole in polygon1. polygon2 must be completely contained within polygon1 and must have no holes itself (it must not be the output of polygon_sub itself).

Example: Define a polygon with a hole punched in it.

outer_polygon = r.polygon(
    [-122.4, 37.7],
    [-122.4, 37.3],
    [-121.8, 37.3],
    [-121.8, 37.7]
)
inner_polygon = r.polygon(
    [-122.3, 37.4],
    [-122.3, 37.6],
    [-122.0, 37.6],
    [-122.0, 37.4]
)
outer_polygon.polygon_sub(inner_polygon).run(conn)

Related commands

• polygon

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