healpix_geo.nested.RangeMOCIndex

class healpix_geo.nested.RangeMOCIndex

range-based index of healpix cell ids

The idea is to compress cell ids at depth 29 based on run-length encoding (RLE).

Only works with cell ids following the “nested” scheme.

__init__()

Methods

__init__()
cell_ids()	Retrieve the cell ids from the index.
create_empty(depth)	Create an empty index
difference(other)	Compute the set difference of two indexes
from_cell_ids(depth, cell_ids)	Create an index from given cell ids.
full_domain(depth)	Create a full domain index
intersection(other)	Compute the set intersection of two indexes
isel(indexer)	Subset the index using positions
query(geometry)	Query by geometry
sel(indexer)	Subset the index using positions
symmetric_difference(other)	Compute the symmetric set difference of two indexes
union(other)	Compute the set union of two indexes

Attributes

depth	The depth of the index.
nbytes	The size of the ranges in bytes, minus any overhead.
size	The number of items in the index.