Public Member Functions
def	__init__ (self, depth=8)

def	getShardIds (self, ctrCoord, radius)

def	indexPoints (self, raList, decList)

Static Public Member Functions
def	makeDataId (shardId, datasetName)

Public Attributes
	htm

Detailed Description

Manage a spatial index of hierarchical triangular mesh (HTM)
shards.

Parameters
----------
depth : `int`
    Depth of the HTM hierarchy to construct.

Definition at line 26 of file htmIndexer.py.

Constructor & Destructor Documentation

◆ init()

def lsst.meas.algorithms.htmIndexer.HtmIndexer.__init__	(	self,
		depth = `8`
	)

Definition at line 35 of file htmIndexer.py.

Member Function Documentation

◆ getShardIds()

def lsst.meas.algorithms.htmIndexer.HtmIndexer.getShardIds	(	self,
		ctrCoord,
		radius
	)

Get the IDs of all shards that touch a circular aperture.

Parameters
----------
ctrCoord : `lsst.geom.SpherePoint`
    ICRS center of search region.
radius : `lsst.geom.Angle`
    Radius of search region.

Returns
-------
results : `tuple`
    A tuple containing:

    - shardIdList : `list` of `int`
List of shard IDs
    - isOnBoundary : `list` of `bool`
For each shard in ``shardIdList`` is the shard on the
boundary (not fully enclosed by the search region)?

Definition at line 38 of file htmIndexer.py.

◆ indexPoints()

def lsst.meas.algorithms.htmIndexer.HtmIndexer.indexPoints	(	self,
		raList,
		decList
	)

Generate shard IDs for sky positions.

Parameters
----------
raList : `list` of `float`
    List of right ascensions, in degrees.
decList : `list` of `float`
    List of declinations, in degrees.

Returns
-------
shardIds : `list` of `int`
    List of shard IDs

Definition at line 68 of file htmIndexer.py.

◆ makeDataId()

def lsst.meas.algorithms.htmIndexer.HtmIndexer.makeDataId	(	shardId,
		datasetName
	)

static

Make a data id from a shard ID.

Parameters
----------
shardId : `int`
    ID of shard in question.
datasetName : `str`
    Name of dataset to use.

Returns
-------
dataId : `dict`
    Data ID for shard.

Definition at line 86 of file htmIndexer.py.

Member Data Documentation

◆ htm

lsst.meas.algorithms.htmIndexer.HtmIndexer.htm

Definition at line 36 of file htmIndexer.py.

The documentation for this class was generated from the following file:

python/lsst/meas/algorithms/htmIndexer.py

Public Member Functions

Static Public Member Functions

Public Attributes