Skip to main content

Projection of Healpix maps onto a planar grid

Project description

Latest Version License Wheels Format pyversions Read the doc

HealPixProjection is a project to allow easy and efficient projection of healpix maps onto planar grids. It can be used as a standalone program cutsky

$ cutsky 0.0 0.0 --mapfilenames HFI_SkyMap_857_2048_R2.00_full.fits

or as a python function

from hpproj import cutsky
result = cutsky([0.0, 0.0], maps={'Planck 857': {'filename': 'HFI_SkyMap_857_2048_R2.00_full.fits'}} )

or as a python class, for optimization when producting several cuts

from hpproj import CutSky, to_coord
cutsky = CutSky({'Planck 857': {'filename': 'HFI_SkyMap_857_2048_R2.00_full.fits'}})
result = cutsky.cut_fits(to_coord([0., 0.])


  • Galactic and equatorial system supported

  • All projection system from wcslib

  • Project several healpix maps at once, efficiently !

  • Output in fits, png or votable for the central point source photometry


Install hpproj using pip :

$ pip install hpproj

or by running setuptools on source

$ python install



If you are having issues, please let us know.


This project is licensed under the LGPL+3.0 license.

Gitlab-CI Master Build Travis Master Build Code Climate Code Health Master Coverage SonarQube

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

hpproj-0.9.4.tar.gz (25.7 kB view hashes)

Uploaded source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page