How To Install healpix-c++ on CentOS 7

In this tutorial we learn how to install healpix-c++ on CentOS 7. healpix-c++ is Healpix C++ binaries and libraries

Introduction

In this tutorial we learn how to install healpix-c++ on CentOS 7.

What is healpix-c++

HEALPix is an acronym for Hierarchical Equal Area isoLatitude Pixelization of a sphere. As suggested in the name, this pixelization produces a subdivision of a spherical surface in which each pixel covers the same surface area as every other pixel. This package contains HEALPix binaries and libraries that are written in C++. NB. Due to some generic names, the binaries have been renamed to start with hp_, e.g. anafast is now hp_anafast.

We can use yum or dnf to install healpix-c++ on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install healpix-c++.

Install healpix-c++ on CentOS 7 Using yum

Update yum database with yum using the following command.

sudo yum makecache

After updating yum database, We can install healpix-c++ using yum by running the following command:

sudo yum -y install healpix-c++

Install healpix-c++ on CentOS 7 Using dnf

If you don’t have dnf installed you can install DNF on CentOS 7 first. Update yum database with dnf using the following command.

sudo dnf makecache

After updating yum database, We can install healpix-c++ using dnf by running the following command:

sudo dnf -y install healpix-c++

How To Uninstall healpix-c++ on CentOS 7

To uninstall only the healpix-c++ package we can use the following command:

sudo dnf remove healpix-c++

References

Summary

In this tutorial we learn how to install healpix-c++ on CentOS 7 using yum and dnf.