|AHELP for CIAO 4.9||
Utility routines for Crates (CIAO contributed package).
import crates_contrib.utils from crates_contrib.utils import *
The crates_contrib.utils module provides utility routines for CIAO users, and is provided as part of the CIAO contributed scripts package.
The module can be loaded into ChIPS, Sherpa, or Python scripts by saying one of the following:
from crates_contrib.utils import * from crates_contrib.all import *
where the second line will load in all the Crates contributed routines, not just the utils module.
The utils module currenly provides the following routines and classes:
|Routine or Class||Description|
|write_columns()||Write out a set of arrays to a file as a table (ASCII or FITS format)|
|write_arrays()||Write arrays to an ASCII file|
|make_table_crate()||Create a table crate from a set of arrays|
|make_image_crate()||Create an image crate from an array|
|add_colvals||Add a column to a table crate|
|scale_image_crate()||Scale the data in an image crate (useful for display purposes)|
|smooth_image_crate()||Smooth the data in an image crate (useful for display purposes)|
|read_ds9_contours()||Read in the contours from a DS9 *.con file with optional coordinate conversion|
|SimpleCoordTransform||Support transformations between the different coordinate systems of an image|
See the ahelp file for the routine and the contributed scripts page for further information.
A bug has been fixed in the SimpleCoordTransform object.
The set_key routine from Crates should be used instead of add_keyval.
See the bugs pages for an up-to-date listing of known bugs.
Refer to the CIAO bug pages for an up-to-date listing of known issues.