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software [2023/04/24 14:52] (current) Déborah Paradis |
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| - | ====== Drizzlib ====== | + | ====== Software ====== |
| - | In this page you can download the drizzling software library, which reprojects data from HEALPix to local WCS, in IDL and Python languages. | + | |
| - | The drizzling library uses a strategy where the surface of pixel intersection is computed as presented in Appendix A of Paradis et al., 2012, A&A, 543, 103. This method allows fast ingestion and guarantees the photometric accuracy of the transformation with minimal data loss during the transformation from HEALPix to local WCS FITS. | + | |
| - | ====== DrizzWeb ====== | + | * Python package [[Drizzlib]] |
| - | **NEW** You can now access a web interface to reproject data from HEALPix to local WCS http://drizzweb.irap.omp.eu/ | + | * Web application [[DrizzWeb]] |
| - | |||
| - | ===== IDL version ===== | ||
| - | |||
| - | ==== Authors ==== | ||
| - | |||
| - | * //Jean-Philippe Bernard (IRAP)// | ||
| - | * //Nathalie Baby (IRAP)// | ||
| - | * //Caroline Bot (CDS)// | ||
| - | * //Laurent Cambrésy (CDS)// | ||
| - | * //Déborah Paradis (IRAP)// | ||
| - | * //Alexandre Sauvé (IRAP)// | ||
| - | |||
| - | |||
| - | **__Download :__** | ||
| - | [[http://cade.irap.omp.eu/documents/Ancillary/Software/drizzlib_v08_15_beta.zip|drizzlib_v08_15_beta.zip]] | ||
| - | |||
| - | ===== Python version ===== | ||
| - | |||
| - | ==== Authors ==== | ||
| - | |||
| - | * //Antoine Goutenoir (IRAP)// | ||
| - | * //Déborah Paradis (IRAP)// | ||
| - | * //Jean-Michel Glorian (IRAP)// | ||
| - | * //Gabriel Foënard (IRAP)// | ||
| - | * //Anaïs Amato (IRAP)// | ||
| - | |||
| - | |||
| - | ==== Source ==== | ||
| - | | ||
| - | The source tree is available on [[https://gitlab.irap.omp.eu/OV-GSO-DC/drizzlib-python|gitlab]]. | ||
| - | |||
| - | The python package itself can be downloaded via ''pip'' : | ||
| - | |||
| - | <code> | ||
| - | pip install drizzlib | ||
| - | </code> | ||
| - | |||
| - | Or you can directly grab a tarball here : | ||
| - | |||
| - | * [[http://cade.irap.omp.eu/downloads/drizzlib/python/drizzlib-1.2.6.3.tar.gz|drizzlib-1.2.6.3.tar.gz]] (2018-12-07) | ||
| - | * [[http://cade.irap.omp.eu/downloads/drizzlib/python/drizzlib-1.2.6.2.tar.gz|drizzlib-1.2.6.2.tar.gz]] (2018-11-16) | ||
| - | * [[http://cade.irap.omp.eu/downloads/drizzlib/python/drizzlib-1.2.6.1.tar.gz|drizzlib-1.2.6.1.tar.gz]] (2018-10-16) | ||
| - | * [[http://cade.irap.omp.eu/downloads/drizzlib/python/drizzlib-1.2.5.tar.gz|drizzlib-1.2.5.tar.gz]] (2018-05-25) | ||
| - | * [[http://cade.irap.omp.eu/downloads/drizzlib/python/drizzlib-1.2.2.tar.gz|drizzlib-1.2.2.tar.gz]] (2017-05-17) | ||
| - | * [[http://cade.irap.omp.eu/downloads/drizzlib/python/drizzlib-1.0.1.tar.gz|drizzlib-1.0.1.tar.gz]] (2015-12-18) | ||
| - | |||
| - | > :!: There are detailed instructions and troubleshooting tips in the ''README'', which you should read. | ||
| - | |||
| - | |||
| - | ==== Installation ==== | ||
| - | |||
| - | First, install the system dependencies : | ||
| - | |||
| - | <code | Debian / Ubuntu> | ||
| - | apt-get install python-dev pkg-config libfreetype* gfortran libopenblas-dev liblapack-dev | ||
| - | </code> | ||
| - | |||
| - | |||
| - | === The easy way === | ||
| - | |||
| - | <code> | ||
| - | pip install drizzlib | ||
| - | </code> | ||
| - | |||
| - | > :?: It may complain about ''numpy''. Install it, and try again. | ||
| - | |||
| - | === The other way === | ||
| - | |||
| - | Uncompress the tarball, move into it. | ||
| - | |||
| - | Then, install the python dependencies using pip : | ||
| - | |||
| - | <code> | ||
| - | pip install --upgrade setuptools | ||
| - | pip install -r requirements.txt | ||
| - | </code> | ||
| - | |||
| - | Finally, install ''drizzlib'' itself : | ||
| - | |||
| - | <code> | ||
| - | python setup.py install | ||
| - | </code> | ||
| - | |||
| - | |||
| - | ==== Usage ==== | ||
| - | |||
| - | Here's a simple usage example, that reads ''my_healpix.fits'' and extracts a subset of its data as described by the header in ''wcs_config.fits'', and writes the result into ''my_wcs.fits'' : | ||
| - | |||
| - | <code python> | ||
| - | from drizzlib import healpix2wcs | ||
| - | |||
| - | healpix2wcs( | ||
| - | 'my_healpix.fits', | ||
| - | header='wcs_config.fits', | ||
| - | output='my_wcs.fits' | ||
| - | ) | ||
| - | </code> | ||
| - | |||
| - | |||
| - | ==== Feedback ==== | ||
| - | |||
| - | You can write to [[cade@irap.omp.eu|cade@irap.omp.eu]]. | ||