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Last modified: January 2012

URL: http://cxc.harvard.edu/ciao/crates_utils.html
AHELP for CIAO 4.4

crates_utils

Context: contrib

Synopsis

Utility routines for Crates (CIAO contributed package).

Syntax

import crates_contrib.utils
from crates_contrib.utils import *

Description

The crates_contrib.utils module provides utility routines for CIAO users, and is provided as part of the CIAO contributed scripts package.

Loading the routines

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.

Contents

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
add_keyval Add a key to the header of a 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.

Changes in the January 2012 Release

Dictionary and structured-array support

The make_table_crate() routine can now create a table crate given a dictionary or NumPy strutctured array.

New routines

The make_image_crate(), add_colvals(), and add_keyval() routines have been added to the module.

Changes in the December 2011 Release

The module has been updated to work with the updated Crates module in CIAO 4.4.

New clobber parameter for write_columns

A clobber parameter has been added to the write_columns routine.

Bugs

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.


Last modified: January 2012
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