dev-python / pymoc

Python Multi-Order Coverage maps for Virtual Observatory

Official package sites : https://pymoc.readthedocs.org/ ·

Frequently astronomical survey catalogues or images are sparse and cover only a small part of the sky. In a Multi-Order Coverage map the extent of data in a particular dataset is cached as a pre-calculated mask image. The hierarchical nature enables fast boolean operations in image space, without needing to perform complex geometrical calculations. Services such as VizieR generally offer the MOC masks, allowing a faster experience in graphical applications such as Aladin, or for researchers quickly needing to locate which datasets may contain overlapping coverage. The MOC mask image itself is tessellated and stored in NASA HealPix format, encoded inside a FITS image container. Using the HealPix (Hierarchical Equal Area isoLatitude Pixelization) tessellation method ensures that more precision (pixels) in the mask are available when describing complex shapes such as approximating survey or polygon edges, while only needing to store a single big cell/pixel when an coverage is either completely inside, or outside of the mask. Catalogues can be rendered on the mask as circles.

v0.5.0 :: 0 :: gentoo

Modified
License
GPL-3
Keywords
~amd64 ~amd64-linux ~x86 ~x86-fbsd ~x86-linux
USE flags
test

General

test
Enable dependencies and/or preparations necessary to run tests (usually controlled by FEATURES=test but can be toggled independently)

python_targets

python2_7
Build with Python 2.7
python3_5
Build with Python 3.5
python3_6
Build with Python 3.6

dev-lang / python : An interpreted, interactive, object-oriented programming language

dev-lang / python-exec : Python script wrapper

dev-python / astropy : Core functionality for performing astrophysics with Python

dev-python / healpy : Python wrapper for healpix

dev-python / setuptools : Collection of extensions to Distutils

x11-apps / xhost : Controls host and/or user access to a running X server

x11-base / xorg-server : X.Org X servers

dev-lang / python : An interpreted, interactive, object-oriented programming language

dev-lang / python-exec : Python script wrapper

dev-python / astropy : Core functionality for performing astrophysics with Python

dev-python / healpy : Python wrapper for healpix

Repository mirror & CI · gentoo
Merge updates from master
Michał Górny · gentoo
*/*: Remove python3_4 PYTHON_COMPAT correctly
Signed-off-by: Michał Górny <mgorny@gentoo.org>
Sébastien Fabbro · gentoo
dev-python/pymoc: initial import
Package-Manager: Portage-2.3.6, Repoman-2.3.2