Regions¶
Region format¶
The sbfit package supports DS9 format region files.
Each region file should contain one inclusive region
and any number of exclusive regions.
Currently, only the image, fk5, and icrs frames are supported.
## Include/exclude property
Different from the original Include/Exclude property of the DS9 regions, the
sbfit package defines this property based on the type of the regions. The
description of each region type can be found at
http://ds9.si.edu/doc/ref/region.html.
Inclusive regions¶
Inclusive regions are used to extract a surface brightness profile. They are:
pandaepandaprojection
Note
For regions panda and epanda, the numbers of angles and radii should be set to 1.