Known problems and bugs with version 4.5
Last updated: August 2009
Problems and Workarounds
When using CIAO, ximage fails to startup
The CIAO initialization script resets the $XANADU environmental
variable needed by ximage. By initializing CIAO before HEASOFT
this problem can be avoided.
On TrueColor displays, the File/Screen Grab... option of the /xtk
device generates a bad image
On displays with color capability greater than 8-bit, the image
created by the xwd screen dump utility is not completely compatible with
xv. A miscolored image or a completely flat or strangely patterned
image may result. The workaround is to use the ImageMagick convert
option instead of the xv option. If ImageMagick is not available, the
pgplot.xwd file in the current directory may be opened and cropped
manually in an image editor of your choice.
Color tables don't change on TrueColor displays
This isn't a bug, but rather a technical difference between
display types. The ability to change the color table of
an already displayed image is exclusive to PseudoColor displays
(i.e. 8 bit).
To change color tables with a TrueColor display (i.e.
16 or 24 bit), the change must be made with the CCT/SET command
before the image is drawn.
Can't quote qualifier value with trailing spaces
The Tcl parser has a problem with commands of the form: label
cur text="trailing spaces " Use curly braces around the
entire qualifier to workaround this parser problem: label cur
{text=trailing spaces }
On OSF, overwriting text file without write permission causes crash
This most often occurs if the user attempts to run search or detect,
which outputs a '.det' file to the current directory by default, on
an image in someone else's directory. The workaround is to either
start XIMAGE from a directory with the proper permissions or use the
FILEDET qualifier to redirect the output file.
<--!>
On Linux, text filenames beginning with a tilde (e.g. ~/out/excess.txt) are not found
Filename completion in XIMAGE provides a
workaround. Create or edit a file named ~/.inputrc
to contain the line:
set expand-tilde on
Whenever you complete a filename, the tilde will be expanded to
its full path.
Note: thanks to CFITSIO, however, FITS filenames may use tildes.
Please send reports of errors to :
xanprob@athena.gsfc.nasa.gov
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Last modified: Friday, 21-Aug-2009 13:25:33 EDT
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