image_xpaget

Synopsis

Retrieve data from ds9 using XPA.

image_xpaget( arg )

Description

The image_xpaget() function is used to retrieve data from the SAO imager, ds9, using XPA; it provides a simple, user-friendly interface which is similar to the xpaget command-line tool [http://hea-www.harvard.edu/saord/xpa/programs.html#xpaget] from the XPA package. A call to the function image_xpaget("file") would translate to 'xpaget ds9 file' on the command line.

• arg - string value; "arg" in the command-line syntax 'xpaget ds9 arg'.

Example

sherpa> image_xpaget("file")
sherpa> image_xpaget("regions")
sherpa> image_xpaget("wcs sky")

The image_xpaget function accepts one string argument, using it as the command 'xpaget ds9 arg'. For example, to ask ds9 which file is currently displayed, or which regions have been defined, one would use "file" or "regions" as the argument, respectively.

Bugs

See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.

See Also

data

load_image, pack_image, unpack_image

modeling

image_model, image_model_component, image_source, image_source_component

psfs

image_kernel

visualization

contour, contour_data, contour_model, contour_ratio, contour_resid, image_close, image_data, image_deleteframes, image_fit, image_getregion, image_open, image_ratio, image_resid, image_setregion, image_xpaset