sids_from_ring

sids_from_ring(ring, level, convex=False, force_ccw=False)

Return a range of indices covering the region inside/outside ring. Node orientation is relevant!

Parameters

ring: shapely.geometry.polygon.LinearRing

Ring to lookup sids for

level: int

Maximum STARE level to use for lookup.

convex: bool

Toggle if the STARE lookup should be performed on the convex hull rather than the actual geometry of the ring

force_ccw: bool

toggle if orientation of ring should be overwritten and ring should be interpreted as outerboundary.

Returns

collection of sids

Examples

>>> import starepandas
>>> import shapely
>>> # Note: the ring is clockwise!
>>> polygon = shapely.geometry.Polygon([(0, 0), (1, 1), (1, 0)])
>>> starepandas.sids_from_ring(polygon.exterior, force_ccw=True, level=6)
array([4430697608402436102, 4430838345890791430, 4430979083379146758])