How To Install saoimage on CentOS 7
Introduction
In this tutorial we learn how to install saoimage
on CentOS 7.
What is saoimage
SAOimage (pronounced S-A-0-image) is a utility for displaying astronomical images in the X11 window environment. It was written at the Smithsonian Astrophysical Observatory by Mike Van Hilst in 1990 and is now maintained by Doug Mink. Image files can be read directly, or image data may be passed through a named pipe (Unix) or a mailbox (VMS) from IRAF display tasks. SAOimage provides a large selection of options for zooming, panning, scaling, coloring, pixel readback, display blinking, and region specification. User interactions are generally performed with the mouse. Mouse tracking in an image’s world coordinate system, usually sky coordinates, was added in 1994. You can also plot catalogs over images with WCS information in their headers. The SAOimage desktop includes, a main image display window, a button menu panel, a display magnifier, a pan and zoom reference image, and a color bar. A color table graph window can be brought up by clicking on the color bar.
We can use yum
or dnf
to install saoimage
on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install saoimage.
Install saoimage on CentOS 7 Using yum
Update yum database with yum
using the following command.
After updating yum database, We can install saoimage
using yum
by running the following command:
Install saoimage 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.
After updating yum database, We can install saoimage
using dnf
by running the following command:
How To Uninstall saoimage on CentOS 7
To uninstall only the saoimage
package we can use the following command:
References
Summary
In this tutorial we learn how to install saoimage
on CentOS 7 using yum
and dnf
.