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ast


Information about the package, ast, which is shipped with common Linux distributions. The ast package is designed for, A Library for Handling World Coordinate Systems in Astronomy.


Package Name:

ast

Summary:

A Library for Handling World Coordinate Systems in Astronomy

Description:

The AST library provides a comprehensive range of facilities for attaching world coordinate systems to astronomical data, for retrieving and interpreting that information and for generating graphical output based on it. It's main selling points are: * Ease of use. * Facilities for generating plots of generalized non-linear, potentially discontinuous 2-D or 3-D coordinate systems, with detailed control of the appearance of the plot. * Facilities for converting transparently between different coordinate systems, including a wide range of celestial, spectral and time coordinate systems. * Facilities for searching a general collection of connected coordinate systems for a coordinate system with any given set of characteristics. * Allows code for handling WCS information to be written in a general way without regard to the specific nature of the coordinate systems being handled (i.e. whether they represent sky positions, spectral positions, focal plane positions, pixel positions, etc). * Flexible system for saving and retrieving WCS information, including (but not limited to) a range of different popular FITS descriptions. * Written in C but has interfaces for C, Fortran, Java (via JNI), Perl, and UNIX shell. * Extensive documentation.

Architecture:

x86_64

Version:

6.0.1

Release:

6.el6

Size:

1.5 M

Repository:

epel

From Repository:

Licence:

GPLv2+ and LGPLv2+



Handy Yum Commands for ast


Control the ast package with the following handy commands outlined below.


Command

Description of Command

yum install ast

This command will install ast on the server.

yum remove ast

This command will un-install ast on the server. When you run this command, you will be asked if you are sure that you want to remove ast, so you have to manually confirm that you want to do this.

yum -y remove ast

This command will un-install ast on the server. When you run this command with th e -y flag, you will not be prompted to check that you are sure you want to remove the package - so be sure you absolutely want to remove ast when using the -y flag.

yum update ast

This command will update ast to the latest version. When you run this command, you will be asked if you are sure that you want to remove ast, so you have to manually confirm that you want to do this.

yum -y update ast

This command will update ast to the latest version. When you run this command with the -y flag, you will not be prompted to check that you are sure you want to remove the package - so be sure you absolutely want to remove ast when using the -y flag.

yum info ast

This command will show you core information about the ast package.

yum deplist ast

This command will show you the dependencies for ast. Thankfully, when using Yum, if dependencies are required, these are also installed at the same time so you don't have to worry too much about that.

yum check-update ast

This command will check if there is an update waiting on ast. When you run this command this will return nothing if there is nothing to update, or, will return the package name if the package is due to be updated.