indexerRegistry.py

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from __future__ import absolute_import, division
#
# LSST Data Management System
# Copyright 2016 LSST Corporation.
#
# This product includes software developed by the
# LSST Project (http://www.lsst.org/).
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the LSST License Statement and
# the GNU General Public License along with this program.  If not,
# see <http://www.lsstcorp.org/LegalNotices/>.
#
from lsst.pex.config import Config, makeRegistry, Field
from .htmIndexer import HtmIndexer

__all__ = ["IndexerRegistry"]

IndexerRegistry = makeRegistry(
    """Registry of indexing algorithms
    """
)

class HtmIndexerConfig(Config):
    depth = Field(
        doc = """Depth of the HTM tree to make.  Default is depth=7 which gives
              ~ 0.3 sq. deg. per trixel.""",
        dtype = int,
        default = 7,
    )

def makeHtmIndexer(config):
    """Make an HtmIndexer
    """
    return HtmIndexer(depth=config.depth)
makeHtmIndexer.ConfigClass = HtmIndexerConfig
IndexerRegistry.register("HTM", makeHtmIndexer)