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DS9(1) General Commands Manual DS9(1)

NAME

ds9 - image tool for astronomy

SYNOPSIS

ds9 [options]
 

DESCRIPTION

DS9 DS9 is the modern image tool used by astronomers for visualization of astronomical data. It supports a plethora of command line options, which may be used in a script-like fashion. An instance of the program is entirely controllable from the commandline with the XPA tools.

OPTIONS

-2mass
Support for 2MASS Digital Sky Survey.
Syntax

-2mass []
[<object> ]
[name <object> ]
[coord <ra> <dec> degrees| sexagesimal] # in wcs fk5
[size <width> <height> degrees| arcmin| arcsec]
[save yes| no]
[frame new| current]
[update frame| crosshair]
[survey j| h| k]
[open| close]
Example:
ds9 -2mass
ds9 -2mass m31
ds9 -2mass name m31
ds9 -2mass coord 00:42:44.404 +41:16:08.78 sexagesimal
ds9 -2mass size 60 60 arcmin
ds9 -2mass save yes
ds9 -2mass frame current
ds9 -2mass update frame
ds9 -2mass survey j
ds9 -2mass open
ds9 -2mass close
-3d
Support for 3D frame.
Syntax

-3d []
[vp <az> <el> ]
[az <az> ]
[el <el> ]
[scale <scale> ]
[method mip| aip]
[background none| azimuth| elevation]
[border yes| no]
[border color]
[highlite yes| no]
[highlite color]
[open| close]
Example:
ds9 -3d # create new 3D frame
ds9 -3d vp 45 30
ds9 -3d az 45
ds9 -3d el 30
ds9 -3d scale 10
ds9 -3d method mip
ds9 -3d background azimuth
ds9 -3d border yes
ds9 -3d border color red
ds9 -3d highlite yes
ds9 -3d highlite color red
ds9 -3d open
ds9 -3d close
-about
Get DS9 credits.
Syntax

-about
Example:
ds9 -about
-align
Controls the World Coordinate System alignment for the current frame.
Syntax

-align [yes| no]
Example:
ds9 -align yes
-analysis
Control external analysis tasks. Tasks are numbered as they are
loaded, starting with 0. Can also be used to display a message and
display text in the text dialog window.
Syntax

-analysis [<task number> ]
[<filename> ]
[task <task number> | <task name> ]
[load <filename> ]
[clear]
[clear] [load <filename> ]
[message ok| okcancel| yesno <message> ]
[entry <message> ]
[text]
Example:
ds9 -analysis 0 # invoke first analysis task
ds9 -analysis task 0
ds9 -analysis task foobar
ds9 -analysis task "{foo bar}"
ds9 -analysis my.ans
ds9 -analysis load my.ans
ds9 -analysis clear
ds9 -analysis clear load my.ans
ds9 -analysis message '{This is a message}'
ds9 -analysis message okcancel '{This is a message}'
ds9 -analysis text '{This is text}'
-array
Load raw data array into current frame.
Syntax

-array <filename> [
[xdim=<x> , ydim=<y> | dim=<dim> ] , zdim=<z> , bitpix=<b> , skip=<s> , endian=
[little| big] ]
Example:
ds9 -array foo.arr[dim=512, bitpix=-32, endian=little]

$cat foo.arr | ds9 -array -[dim=512, bitpix=-32, endian=little]
-asinh
Select ASINH scale function for the current frame.
Syntax

-asinh
Example:
ds9 -asinh

bg
-background
Set image background color.
Syntax

-bg <color>
Example:
ds9 -background red
ds9 -bg red
-backup
Create a backup save set.
Syntax

-backup <filename>
Example:
ds9 -backup ds9.bck
-bin
Controls binning factor, binning buffer size, and binning function
for binning FITS bin tables.
Syntax

-bin [about <x> <y> ]
[about center]
[buffersize <value> ]
[cols <x> <y> ]
[colsz <x> <y> <z> ]
[factor <value> [<value> ] ]
[depth <value> ]
[filter <string> ]
[function average| sum]
[to fit]
[match]
[lock [yes| no] ]
[open| close]
Example:
ds9 -bin about 4096 4096
ds9 -bin about center
ds9 -bin buffersize 512
ds9 -bin cols detx dety
ds9 -bin colsz detx dety time
ds9 -bin factor 4
ds9 -bin factor 4 2
ds9 -bin depth 10
ds9 -bin filter '{pha > 5}'
ds9 -bin filter ''
ds9 -bin function sum
ds9 -bin to fit
ds9 -bin match
ds9 -bin lock yes
ds9 -bin open
ds9 -bin close
-blink
Blink mode parameters. Interval is in seconds.
Syntax

-blink []
[yes| no]
[interval <value> ]
Example:
ds9 -blink
ds9 -blink yes
ds9 -blink interval 1
-blue
For RGB frames, sets the current color channel to blue.
Syntax

-blue
Example:
ds9 -blue foo.fits
-catalog
cat
Support for catalogs.
Syntax

-catalog []
[ned| simbad| denis| skybot]

[ascss| cmc| gsc1| gsc2| gsc3| ac| nomad| ppmx| sao| sdss5| sdss6| sdss7| sdss8| tycho| ua2| ub1| ucac2]
[2mass| iras]
[csc| xmm| rosat]
[first| nvss]
[chandralog| cfhtlog| esolog| stlog| xmmlog]
[cds <catalogname> ]
[cds <catalogid> ]
[load <filename> ]
[import sb| tsv <filename> ]
[<ref> ] [allcols]
[<ref> ] [allrows]
[<ref> ] [cancel]
[<ref> ] [clear]
[<ref> ] [close]
[<ref> ] [coordinate <ra> <dec> <coordsys> ]
[<ref> ] [crosshair]
[<ref> ] [dec <col> ]
[<ref> ] [edit yes| no]
[<ref> ] [export sb| tsv <filename> ]
[<ref> ] [filter <string> ]
[<ref> ] [filter load <filename> ]
[<ref> ] [header]
[<ref> ] [hide]
[<ref> ] [location <code> ]
[<ref> ] [match <ref> <ref> ]
[<ref> ] [match error <value> degrees| arcmin| arcsec]
[<ref> ] [match function 1and2| 1not2| 2not1]
[<ref> ] [match return 1and2| 1only| 2only]
[<ref> ] [match unique yes| no]
[<ref> ] [maxrows <number> ]
[<ref> ] [name <object> ]
[<ref> ] [panto yes| no]
[<ref> ] [plot <xcol> <ycol> <xerrcol> <yerrcol> ]
[<ref> ] [print]
[<ref> ] [psky <skyframe> ]
[<ref> ] [psystem <coordsys> ]
[<ref> ] [ra <col> ]
[<ref> ] [regions]
[<ref> ] [retrieve]
[<ref> ] [samp]
[<ref> ] [samp broadcast]
[<ref> ] [samp send <application> ]
[<ref> ] [save <filename> ]
[<ref> ] [server
-cd
Sets the current working directory.
Syntax

cd [<directory> ]
Example:
ds9 -cd /home/mrbill
-cmap
Controls the colormap for the current frame. The colormap name is not
case sensitive. A valid contrast value is from 0 to 10 and bias
value from 0 to 1.
Syntax

-cmap [<colormap> ]
[file]
[load <filename> ]
[save <filename> ]
[invert yes| no]
[value <contrast> <bias> ]
[tag [load| save] <filename> ]
[tag delete]
[match]
[lock [yes| no] ]
[open| close]
Example:
ds9 -cmap Heat
ds9 -cmap load foo.sao
ds9 -cmap save bar.sao
ds9 -cmap invert yes
ds9 -cmap value 5 .5
ds9 -cmap tag load foo.tag
ds9 -cmap tag save foo.tag
ds9 -cmap tag delete
ds9 -cmap match
ds9 -cmap lock yes
ds9 -cmap open
ds9 -cmap close
-colorbar
Controls colorbar parameters.
Syntax

-colorbar []
[yes| no]
[horizontal| vertical]
[orientation horizontal| vertical]
[numerics yes| no]
[space value| distance]
[font times| helvetica| courier]
[fontsize <value> ]
[fontweight normal| bold]
[fontslant roman| italic]
[size]
[ticks]
Example:
ds9 -colorbar yes
ds9 -colorbar vertical
ds9 -colorbar orientation vertical
ds9 -colorbar numerics yes
ds9 -colorbar space value
ds9 -colorbar font times
ds9 -colorbar fontsize 14
ds9 -colorbar fontweight bold
ds9 -colorbar fontslant italic
ds9 -colorbar size 20
ds9 -colorbar ticks 11
-console
Display tcl console window.
Syntax

-console
Example:
ds9 -console
-contour
Controls contours in the current frame.
Syntax

-contour []
[yes| no]
[clear]
[generate]
[load <filename> <coordsys> <skyframe> <color> <width>
yes| no]
[save <filename> <coordsys> <skyframe> ]
[convert]
[loadlevels <filename> ]
[savelevels <filename> ]
[copy]
[paste <coordsys> <color> <width> yes| no]
[color <color> ]
[width <width> ]
[dash yes| no]
[smooth <smooth> ]
[method block| smooth]
[nlevels <number of levels> ]
[scale linear| log| pow| squared| sqrt| asinh| sinh| histequ]
[log exp <value> ]
[mode minmax| <value> | zscale| zmax]
[limits <min> <max> ]
[levels <value value value...> ]
[open| close]
Example:
ds9 -contour
ds9 -contour yes
ds9 -contour generate
ds9 -contour clear
ds9 -contour load ds9.con wcs fk5 yellow 2 no
ds9 -contour load ds9.con wcs fk5 red 2 yes
ds9 -contour save ds9.con wcs fk5
ds9 -contour convert
ds9 -contour loadlevels ds9.lev
ds9 -contour savelevels ds9.lev
ds9 -contour copy
ds9 -contour paste wcs red 2 no
ds9 -contour color yellow
ds9 -contour width 2
ds9 -contour dash yes
ds9 -contour smooth 5
ds9 -contour method smooth
ds9 -contour nlevels 10
ds9 -contour scale sqrt
ds9 -contour log exp 1000
ds9 -contour mode zscale
ds9 -contour limits 1 100
ds9 -contour levels "1 10 100 1000"
ds9 -contour open
ds9 -contour close
-crop
Set current image display area.
Syntax

-crop [<x> <y> <width> <height> [<coordsys> ] [<skyframe> ] [<skyformat> ]
[degrees| arcmin| arcsec]
[match <coordsys> ]
[lock <coordsys> | none]
Example:
ds9 foo.fits -crop 40 30 10 20 # set crop in physical coords
ds9 foo.fits -crop +104:51:06.915 +68:33:40.761 28.144405 22.000204
-crosshair
Controls the current position of the crosshair in the current frame.
DS9 is placed in crosshair mode when the crosshair is set.
Syntax

-crosshair [<x> <h> <coordsys> [<skyframe> ] [<skyformat> ] ]
[match <coordsys> ]
[lock <coordsys> | none]
Example:
ds9 -crosshair 100 100 physical # set crosshair in physical
ds9 -crosshair 345 58.8 wcs fk5 # set crosshair in wcs coords
ds9 -crosshair 23:01:00 +58:52:51 wcs fk5
ds9 -crosshair match
ds9 -crosshair lock wcs
-cube
Controls FITS cube.
Syntax

-cube [play| stop| next| prev| first| last]
[<slice> [<coordsys> ] [<axis> ] ]
[interval <numeric> ]
[axis <axis> ]
[match <coordsys> ]
[lock <coordsys> | none]
[open| close]
Example:
ds9 -cube play
ds9 -cube last
ds9 -cube 3
ds9 -cube 4.5 wcs 3
ds9 -cube interval 2
ds9 -cube axis 3
ds9 -cube match wcs
ds9 -cube lock wcs
ds9 -cube open
ds9 -cube close
-cursor
Move mouse pointer or crosshair in image pixels in the current frame.
Note, this will move selected Regions also.
Syntax

-cursor [<x> <h> ]
Example:
ds9 -cursor 10 10
-dsssao
dss
Support for Digital Sky Survey at SAO.
Syntax

-dsssao []
[<object> ]
[name <object> ]
[coord <ra> <dec> degrees| sexagesimal] # in wcs fk5
[size <width> <height> degrees| arcmin| arcsec]
[save yes| no]
[frame new| current]
[update frame| crosshair]
[open| close]
Example:
ds9 -dsssao
ds9 -dsssao m31
ds9 -dsssao name m31
ds9 -dsssao coord 00:42:44.404 +41:16:08.78 sexagesimal
ds9 -dsssao size 60 60 arcmin
ds9 -dsssao save yes
ds9 -dsssao frame current
ds9 -dsssao update frame
ds9 -dsssao open
ds9 -dsssao close
-dsseso
Support for Digital Sky Survey at ESO.
Syntax

-dsseso []
[<object> ]
[name <object> ]
[coord <ra> <dec> degrees| sexagesimal] # in wcs fk5
[size <width> <height> degrees| arcmin| arcsec]
[save yes| no]
[frame new| current]
[update frame| crosshair]
[survey DSS1| DSS2-red| DSS2-blue| DSS2-infrared]
[open| close]
Example:
ds9 -dsseso
ds9 -dsseso m31
ds9 -dsseso name m31
ds9 -dsseso coord 00:42:44.404 +41:16:08.78 sexagesimal
ds9 -dsseso size 60 60 arcmin
ds9 -dsseso save yes
ds9 -dsseso frame current
ds9 -dsseso update frame
ds9 -dsseso survey DSS2-red
ds9 -dsseso open
ds9 -dsseso close
-dssstsci
Support for Digital Sky Survey at STSCI.
Syntax

-dssstsci []
[<object> ]
[name <object> ]
[coord <ra> <dec> degrees| sexagesimal] # in wcs fk5
[size <width> <height> degrees| arcmin| arcsec]
[save yes| no]
[frame new| current]
[update frame| crosshair]
[survey poss2ukstu_red| poss2ukstu_ir| poss2ukstu_blue]
[survey poss1_blue| poss1_red]
[survey all| quickv| phase2_gsc2| phase2_gsc1]
[open| close]
Example:
ds9 -dssstsci
ds9 -dssstsci m31
ds9 -dssstsci name m31
ds9 -dssstsci coord 00:42:44.404 +41:16:08.78 sexagesimal
ds9 -dssstsci size 60 60 arcmin
ds9 -dssstsci save yes
ds9 -dssstsci frame current
ds9 -dssstsci update frame
ds9 -dssstsci survey all
ds9 -dssstsci open
ds9 -dssstsci close
-envi
Load an ENVI header and file. Optional parameter: array endian.
Syntax

-envi <header> [<filename> ]
Example:
ds9 -envi foo.hdr
ds9 -envi foo.hdr foo.bsq
-exit
quit
Quits DS9.
Syntax

-exit
-quit
Example:
ds9 -exit
-export
Export loaded image data of current frame in specified image format,
at native resolution, using current colormap and contrast/bias
settings. NOTE: not scaling, rotation, or translation is applied. If
no format specified, the file name extension is used to determine the
output format. Optional parameters: jpeg quality (1-100) and tiff
compression method.
Syntax

-export [array| nrrd| envi| gif| tiff| jpeg| png] <filename>
-export array <filename> [big| little| native]
-export nrrd <filename>
[big| little| native]
-export envi <header> [<filename> ] [big| little| native]
-export <filename> .jpeg [1-100]
-export <filename> .tiff [none| jpeg| packbits| deflate]
Example:
ds9 -export array foo.arr little
ds9 -export nrrd foo.nrrd little
ds9 -export envi foo.hdr little
ds9 -export envi foo.hdr foo.bsq little
ds9 -export tiff foo.tiff jpeg
ds9 -export jpeg foo.jpeg 75
ds9 -export png foo.png
-fifo
Set the name of the IRAF input and output fifos. The default is /dev/
imt1. These fifos are used by IRAF to communicate with DS9.
Syntax

-fifo name
Example:
ds9 -fifo /dev/imt1
-fifo_only
-fits
Load a FITS image into the current frame.
Syntax

-fits<filename>
Example:
ds9 -fits foo.fits
ds9 -fits bar.fits[bin=detx, dety]

$cat foo.fits | ds9 -fits -
$cat bar.fits | ds9 -fits -[bin=detx, dety]
-frame
Controls frame functions. Frames may be created, deleted, reset, and
centered. While return the current frame number. If you goto a frame
that does not exists, it will be created. If the frame is hidden, it
will be shown. The 'frameno' option is available for backward
compatibility.
Syntax

-frame [center [#| all] ]
[clear [#| all] ]
[new [rgb] ]
[delete [#| all] ]
[reset [#| all] ]
[refresh [#| all] ]
[hide [#| all] ]
[show [#| all] ]
[move first]
[move back]
[move forward]
[move last]
[first]
[prev]
[next]
[last]
[frameno #]
[#]
[match <coordsys> ]
[lock <coordsys> | none]
Example:
ds9 -frame center # center current frame
ds9 -frame center 1 # center 'Frame1'
ds9 -frame center all # center all frames
ds9 -frame clear # clear current frame
ds9 -frame new # create new frame
ds9 -frame new rgb # create new rgb frame
ds9 -frame delete # delete current frame
ds9 -frame reset # reset current frame
ds9 -frame refresh # refresh current frame
ds9 -frame hide # hide current frame
ds9 -frame show 1 # show frame 'Frame1'
ds9 -frame move first # move frame to first in order
ds9 -frame move back # move frame back in order
ds9 -frame move forward # move frame forward in order
ds9 -frame move last # move frame to last in order
ds9 -frame first # goto first frame
ds9 -frame prev # goto prev frame
ds9 -frame next # goto next frame
ds9 -frame last # goto last frame
ds9 -frame frameno 4 # goto frame 'Frame4', create if needed
ds9 -frame 3 # goto frame 'Frame3', create if needed
ds9 -frame lock wcs
-geometry
Define the initial window geometry. This includes all of the ds9
window, not just the image space. see X(1).
Syntax

-geometry value
Example:
ds9 -geometry 640x480
-gif
Import gif file.
Syntax

-gif <filename>
Example:
ds9 -gif foo.gif

$cat foo.gif | ds9 -gif -
-green
For RGB frames, sets the current color channel to green.
Syntax

-green
Example:
ds9 -green foo.fits

grid
Controls coordinate grid. For grid numeric format syntax, click
here.
Syntax

-grid []
[yes| no]
[type analysis| publication]
[system <coordsys> ]
[sky <skyframe> ]
[skyformat <skyformat> ]
[grid yes| no]
[grid color <color> ]
[grid width <value> ]
[grid style 0| 1]
[grid gap1 <value> ]
[grid gap2 <value> ]
[axes yes| no]
[axes color <color> ]
[axes width <value> ]
[axes style 0| 1]
[axes type interior| exterior]
[axes origin lll| llu| lul| luu| ull| ulu| uul| uuu]
[format1 <format> ]
[format2 <format> ]
[tickmarks yes| no]
[tickmarks color <color> ]
[tickmarks width <value> ]
[tickmarks style 0| 1]
[border yes| no]
[border color <color> ]
[border width <value> ]
[border style 0| 1]
[numerics yes| no]
[numerics font times| helvetica| courier]
[numerics fontsize <value> ]
[numerics fontweight normal| bold]
[numerics fontslant roman| italic]
[numerics color <color> ]
[numerics gap1 <value> ]
[numerics gap2 <value> ]
[numerics type interior| exterior]
[numerics vertical yes| no]
[title yes| no]
[title text <text> ]
[title def yes| no]
[title gap <value> ]
[title font times| helvetica| courier]
[title fontsize <value> ]
[title fontweight normal| bold]
[title fontslant roman| italic]
[title color <color> ]
[labels yes| no]
[labels text1 <text> ]
[labels def1 yes| no]
[labels gap1 <value> ]
[labels text2 <text> ]
[labels def2 yes| no]
[labels gap2 <value> ]
[labels font times| helvetica| courier]
[labels fontsize <value> ]
[labels fontweight normal| bold]
[labels fontslant roman| italic]
[labels color <color> ]
[reset]
[load <filename> ]
[save <filename> ]
[open| close]
Example:
ds9 -grid
ds9 -grid yes
ds9 -grid type analysis
ds9 -grid system wcs
ds9 -grid sky fk5
ds9 -grid skyformat degrees
ds9 -grid grid yes
ds9 -grid grid color red
ds9 -grid grid width 2
ds9 -grid grid style 1
ds9 -grid grid gap1 10
ds9 -grid grid gap2 10
ds9 -grid axes yes
ds9 -grid axes color red
ds9 -grid axes width 2
ds9 -grid axes style 1
ds9 -grid axes type exterior
ds9 -grid axes origin lll
ds9 -grid format1 d.2
ds9 -grid format2 d.2
ds9 -grid tickmarks yes
ds9 -grid tickmarks color red
ds9 -grid tickmarks width 2
ds9 -grid tickmarks style 1
ds9 -grid border yes
ds9 -grid border color red
ds9 -grid border width 2
ds9 -grid border style 1
ds9 -grid numerics yes
ds9 -grid numerics font courier
ds9 -grid numerics fontsize 12
ds9 -grid numerics fontweight bold
ds9 -grid numerics fontslant italic
ds9 -grid numerics color red
ds9 -grid numerics gap1 10
ds9 -grid numerics gap2 10
ds9 -grid numerics type exterior
ds9 -grid numerics vertical yes
ds9 -grid title yes
ds9 -grid title text {Hello World}
ds9 -grid title def yes
ds9 -grid title gap 10
ds9 -grid title font courier
ds9 -grid title fontsize 12
ds9 -grid title fontweight bold
ds9 -grid title fontslant italic
ds9 -grid title color red
ds9 -grid labels yes
ds9 -grid labels text1 {Hello World}
ds9 -grid labels def1 yes
ds9 -grid labels gap1 10
ds9 -grid labels text2 {Hello World}
ds9 -grid labels def2 yes
ds9 -grid labels gap2 10
ds9 -grid labels font courier
ds9 -grid labels fontsize 12
ds9 -grid labels fontweight bold
ds9 -grid labels fontslant italic
ds9 -grid labels color red
ds9 -grid reset
ds9 -grid load foo.grd
ds9 -grid save foo.grd
ds9 -grid open
ds9 -grid close
-geometry
Define the initial window geometry. This includes all of the ds9
window, not just the image space. see X(1).
Syntax

-geometry value
Example:
ds9 -geometry 640x480
-header
Display current fits header dialog. Optional extension number maybe
specified.
Syntax

-header [<ext> ]
[close [<ext> ] ]
[save [<ext> ] <filename> ]
Example:
ds9 -header
ds9 -header 2
ds9 -header close
ds9 -header save 1 foo.txt
-height
Set the height of the image display window. Use the geometry command
to set the overall width and height of the ds9 window.
Syntax

-height [<value> ]
Example:
ds9 -height 512
-help
Display help information. To maintain backward compatibility, -help
will display a brief help message and exit. --help will display all
command line options within the built-in help facility.
Syntax

-help # Display brief help message and exit.
--help # Display command line options within help facility.
-? # Display command line options within help facility.
Example:
ds9 -help # Display brief help message and exit.
ds9 --help # Display command line options within help facility
ds9 -? # Display command line options within help facility.
-histequ
Select histogram equalization scale function for the current frame.
Syntax

-histequ
Example:
ds9 -histequ
-iconify
Toggles iconification.
Syntax

-iconify []
[yes| no]
Example:
ds9 -iconify
ds9 -iconify yes
-inet_only
Only use the IRAF port number. This is the same as -fifo none -unix
none.
Syntax

-port_only
Example:
ds9 -port_only
-invert
Invert Colormap.
Syntax

-invert
Example:
ds9 -invert
-iis
Set IIS Filename. Optional mosaic number maybe supplied.
Syntax

-iis [filename <filename> [#] ]
Example:
ds9 -iis filename foo.fits
ds9 -iis filename bar.fits 4
-jpeg
Load JPEG image into current frame.
Syntax

-jpeg <filename>
Example:
ds9 -jpeg foo.jpeg

$cat foo.jpeg | ds9 -jpeg -
-language
Select current language.
Syntax

-language [locale| da| de| es| en| fr| ja| pt]
Example:
ds9 -language fr
-linear
Select linear scale function for the current frame.
Syntax

-linear
Example:
ds9 -linear
-lock
Lock all other frames to the current frame.
Syntax

-lock[frame <coordsys> | none]
[crosshair <coordsys> | none]
[crop <coordsys> | none]
[slice <coordsys> | none]
[bin [yes| no] ]
[scale [yes| no] ]
[colorbar [yes| no]
[smooth [yes| no] ]
Example:
ds9 -lock frame wcs
ds9 -lock crosshair wcs
ds9 -lock crop wcs
ds9 -lock slice wcs
ds9 -lock bin yes
ds9 -lock scale yes
ds9 -lock colorbar yes
ds9 -lock smooth yes
-log
Select log scale function for the current frame.
Syntax

-log
Example:
ds9 -log
-lower
Lower in the window stacking order.
Syntax

-lower
Example:
ds9 -lower
-magnifier
Controls the magnifier settings.
Syntax

magnifier [color <color> ]
[zoom <value> ]
[cursor yes| no]
[region yes| no]
Example:
ds9 -magnifier color yellow
ds9 -magnifier zoom 2
ds9 -magnifier cursor no
ds9 -magnifier region no
-mask
nomask
Controls mask parameters.
Syntax

-mask [color <color> ]
[mark 1| 0]
[transparency <value> ]
[clear]
[open| close]
-nomask
Example:
ds9 -mask color red
ds9 -mask mark 0
ds9 -mask transparency 50
ds9 -mask clear
ds9 -mask open
ds9 -mask close
ds9 -nomask
-match
Match all other frames to the current frame.
Syntax

-match[frame <coordsys> ]
[crosshair <coordsys> ]
[crop <coordsys> ]
[slice <coordsys> ]
[bin]
[scale]
[colorbar]
[smooth]
Example:
ds9 -match frame wcs
ds9 -match crosshair wcs
ds9 -match crop wcs
ds9 -match slice wcs
ds9 -match bin
ds9 -match scale
ds9 -match colorbar
ds9 -match smooth
-mecube
Load FITS multiple extension file as data cube.
Syntax

mecube <filename>
Example:
ds9 -mecube foo.fits

$cat foo.fits | ds9 -mecube -
-minmax
This is how DS9 determines the min and max data values from the
data. SCAN will scan all data. SAMPLE will sample the data every n
-mode
Select the current mode.
Syntax

-mode
[none| region| crosshair| colorbar| pan| zoom| rotate| catalog| examine]
Example:
ds9 -mode crosshair
-mosaic
Load FITS mosaic segment into current frame.
Syntax

-mosaic [wcs| wcsa...wcsz| iraf] <filename>
Example:
ds9 -mosaic foo.fits
ds9 -mosaic wcs foo.fits

$cat foo.fits | ds9 -mosaic -
$cat foo.fits | ds9 -mosaic wcs -
-mosaicimage
-movie
-msg
Specify a directory of translation tables to be loaded.
Syntax

-msg <directory>
Example:
ds9 -msg $HOME/msgs
-multiframe
Load FITS multiple extension file as multiple images.
Syntax

multiframe <filename>
Example:
ds9 -multiframe foo.fits

$cat foo.fits | ds9 -multiframe -
-nameserver
Support Name Server functions. Coordinates are in fk5.
Syntax

-nameserver [<object> ]
[name <object> ]
[server ned-sao| ned-eso| simbad-sao| simbad-eso]
[skyformat degrees| sexagesimal]
[pan]
[crosshair]
[open| close]
Example:
ds9 -nameserver m31
ds9 -nameserver name m31
ds9 -nameserver server ned-sao
ds9 -nameserver skyformat sexagesimal
ds9 -nameserver pan
ds9 -nameserver crosshair
ds9 -nameserver open
ds9 -nameserver close
-nan
Set image not-a-number color.
Syntax

-nan <color>
Example:
ds9 -nan red
-nrrd
Load an NRRD (Nearly Raw Raster Data) file.
Syntax

-nrrd <filename>
Example:
ds9 -nrrd foo.nrrd

$cat foo.nrrd | xpaset ds9 -nrrd -
-nvss
Support for NRAO VLA Sky Survey.
Syntax

-nvss []
[<object> ]
[name <object> ]
[coord <ra> <dec> degrees| sexagesimal] # in wcs fk5
[size <width> <height> degrees| arcmin| arcsec]
[save yes| no]
[frame new| current]
[update frame| crosshair]
[open| close]
Example:
ds9 -nvss
ds9 -nvss m31
ds9 -nvss name m31
ds9 -nvss coord 00:42:44.404 +41:16:08.78 sexagesimal
ds9 -nvss size 60 60 arcmin
ds9 -nvss save yes
ds9 -nvss frame current
ds9 -nvss update frame
ds9 -nvss open
ds9 -nvess close
-orient
Controls the orientation of the current frame.
Syntax

-orient [none| x| y| xy]
[open| close]
Example:
ds9 -orient xy
ds9 -orient open
ds9 -orient close
-pagesetup
Controls Page Setup options.
Syntax

-pagesetup [orient portrait| landscape]
[scale <numberic> ]
[size letter| legal| tabloid| poster| a4]
Example:
ds9 -pagesetup orient portrait
ds9 -pagesetup scale 50
ds9 -pagesetup size poster
-pan
Controls the current image cursor location for the current frame.
Syntax

-pan [<x> <h> <coordsys> [<skyframe> ] [<skyformat> ]
[to <x> <h> <coordsys> [<skyframe> ] [<skyformat> ]
[open| close]
Example:
ds9 -pan 200 200 image
ds9 -pan to 400 400 physical
ds9 -pan to 13:29:55 47:11:50 wcs fk5
ds9 -pan open
ds9 -pan close
-pixeltable
Display/Hide the pixel table.
Syntax

-pixeltable []
[yes| open]
[no| close]
Example:
ds9 -pixeltable
ds9 -pixeltable yes
ds9 -pixeltable open
ds9 -pixeltable close
-plot
Display and configure data plots. All plot commands take an optional
second command, the plot name. If no plot name is specified, the last
plot created is assumed. Plot data is assumed to be a pair of
coordinates, with optional error values. The follow are valid data
descriptions:
xy x and y coordinates
xyex x, y coordinates with x errors
xyey x, y coordinates with y errors
xyexey x, y coordinates with x and y errors
To create a new plot, use the plot new command.
Syntax

# create new empty plot window
-plot
-plot [bar| scatter]
[new [name <plotname> ] [line| bar| scatter] ]
[new [name <plotname> ] [line| bar| scatter] <title> <xaxis label>
<yaxis label> xy| xyex| xyey| xyexey]
-plot [<plotname> ] load <filename> [xy| xyex| xyey| xyexey]
[<plotname> ] save <filename>
[<plotname> ] clear
[<plotname> ] duplicate
[<plotname> ] stats
[<plotname> ] list
[<plotname> ] loadconfig <filename>
[<plotname> ] saveconfig <filename>
[<plotname> ] pagesetup orient [portrait| landscape]
[<plotname> ] pagesetup size [letter| legal| tabloid| poster| a4]
[<plotname> ] print
[<plotname> ] print destination [printer| file]
[<plotname> ] print command <command>
[<plotname> ] print filename <filename>
[<plotname> ] print color [rgb| gray]
[<plotname> ] close
-plot[<plotname> ] mode [pointer| zoom]
# configure graph
-plot [<plotname> ] axis [x| y] grid [yes| no]
[<plotname> ] axis [x| y] log [yes| no]
[<plotname> ] axis [x| y] flip [yes| no]
[<plotname> ] axis [x| y] auto [yes| no]
[<plotname> ] axis [x| y] min <value>
[<plotname> ] axis [x| y] max <value>
[<plotname> ] axis [x| y] format <string>
[<plotname> ] legend [yes| no]
[<plotname> ] legend position [right| left| top| bottom]
[<plotname> ] font [title| labels| numbers] font
[times| helvetica| courier]
[<plotname> ] font[title| labels| numbers] size <value>
[<plotname> ] font[title| labels| numbers] weight [normal| bold]
[<plotname> ] font[title| labels| numbers] slant [roman| italic]
[<plotname> ] title <string>
[<plotname> ] title [x| y] <string>
[<plotname> ] barmode [normal| stacked| aligned| overlap]
# configure current dataset
-plot [<plotname> ] show [yes| no]
[<plotname> ] shape
[circle| square| diamond| plus| splus| scross| triangle| arrow]

[<plotname> ] shape fill [yes| no]

[<plotname> ] shape color <value>

[<plotname> ] smooth [step| linear| cubic| quadratic| catrom]

[<plotname> ] color <value>

[<plotname> ] width <value>

[<plotname> ] dash [yes| no]

[<plotname> ] error [yes| no]

[<plotname> ] error color <value>

[<plotname> ] error width <value>

[<plotname> ] name <string>
# select current dataset
-plot [<plotname> ] select <value>
Example:

# create new empty plot window
ds9 -plot
ds9 -plot scatter
ds9 -plot new
ds9 -plot new bar
ds9 -plot new name foo
ds9 -plot new name foo scatter
ds9 -plot load foo.dat xy # load new dataset with dimension xy
ds9 -plot save bar.dat # save current dataset
ds9 -plot clear # clear all datasets
ds9 -plot duplicate # duplicate current dataset
ds9 -plot stats # display current dataset statistics
ds9 -plot list # list current dataset
ds9 -plot loadconfig foo.plt # load plot configuration
ds9 -plot saveconfig bar.plt # save current plot configuration
ds9 -plot pagesetup orient portrait
ds9 -plot pagesetup size letter
ds9 -plot print
ds9 -plot print destination file
ds9 -plot print command "lp"
ds9 -plot print filename "foo.ps"
ds9 -plot print color rgb
ds9 -plot close # close current plot
ds9 -plot mode pointer

# configure plot
ds9 -plot axis x grid yes
ds9 -plot axis x log yes
ds9 -plot axis x flip yes
ds9 -plot axis x auto no
ds9 -plot axis x min 0
ds9 -plot axis x max 100
ds9 -plot axis x format {%f}
ds9 -plot legend yes # show legend
ds9 -plot legend position left
ds9 -plot font numbers font times
ds9 -plot font numbers size 12
ds9 -plot font numbers weight bold
ds9 -plot font numbers slant italic
ds9 -plot title {The Title}
ds9 -plot title x {X Axis}
ds9 -plot barmode aligned

# configure current dataset
ds9 -plot show yes
ds9 -plot shape circle
ds9 -plot shape fill no
ds9 -plot shape color cyan
ds9 -plot smooth step
ds9 -plot color red
ds9 -plot width 2
ds9 -plot dash yes
ds9 -plot error yes
ds9 -plot error color red
ds9 -plot error width 2
ds9 -plot name {My Data}

# select current dataset
ds9 -plot select 2
-png
Load PNG image into current frame.
Syntax

-png <filename>
Example:
ds9 png foo.png

$cat foo.png | ds9 -png -
-prefs
Controls various preference settings.
Syntax

-prefs clear
Example:
ds9 -prefs clear
-preserve
Preserve the follow attributes while loading a new image.
Syntax

preserve [pan yes| no]
[regions yes| no]
Example:
ds9 -preserve pan yes
ds9 -preserve regions yes
-psprint
For MacOSX and Windows, invokes postscript printing. For all others,
same as print. Please see print for further details.
-print
Controls printing. Use print option to set printing options. Use
print to actually print.
Syntax

-print [destination printer| file]
[command <command> ]
[filename <filename> ]
[color rgb| cmyk| gray]
[level 1| 2]
[resolution 53| 72| 75| 150| 300| 600]
Example:
ds9 -print
ds9 -print destination file
ds9 -print command 'gv -'
ds9 -print filename foo.ps
ds9 -print color cmyk
ds9 -print level 2
ds9 -print resolution 75
-private
use private colormap, valid for pseudocolor 8 mode.
Syntax

-private
Example:
ds9 -private
-port
Set the IRAF port number, used by IRAF to communicate with DS9. The
default is 5137, the standard IRAF port used by ximtool.
Syntax

-port number
Example:
ds9 -port 5137
-port_only
-pow
Select power scale function for the current frame.
Syntax

-pow
Example:
ds9 -pow
-exit
quit
Quits DS9.
Syntax

-exit
-quit
Example:
ds9 -exit
-raise
Raise in the window stacking order.
Syntax

-raise
Example:
ds9 -raise
-regions
Controls regions in the current frame.
Syntax

-regions [<filename> ]
[load [all] <filename> ]
[save <filename> ]
[list [close] ]
[epsilon <integer> ]
[show yes| no]
[showtext yes| no]
[centroid]
[centroid auto yes| no]
[centroid radius <value> | iteration <value> ]
[getinfo]
[move front]
[move back]
[select all]
[select none]
[select invert]
[delete all]
[delete select]
[format ds9| xml| ciao| saotng| saoimage| pros| xy]
[system image| physical| wcs| wcsa...wcsz]
[sky fk4| fk5| icrs| galactic| ecliptic]
[skyformat degrees| sexagesimal]
[strip yes| no]
[shape <shape> ]
[color <color>
[width <width> ]
[fixed| edit| rotate| delete yes| no]
[include| exclude| source| background]
[delim [nl| <char> ] ]
[command <marker command> ]
[composite]
[dissolve]
[template <filename> ]
[template <filename> at <ra> <dec> <coordsys> <skyframe> ]
[savetemplate <filename> ]
[group new]
[group <tag> new]
[group <tag> update]
[group <tag> select]
[group <tag> color <color> ]
[group <tag> copy]
[group <tag> delete]
[group <tag> cut]
[group <tag> font <font> ]
[group <tag> move <int> <int> ]
[group <tag> movefront]
[group <tag> moveback]
[group <tag> property <property> yes| no]
[copy]
[cut]
[paste image| physical| wcs| wcsa...wcsz]
[undo]
Example:
ds9 -regions foo.reg
ds9 -regions -format ciao bar.reg # load as ciao format
ds9 -regions foo.fits # FITS regions files do not need a format

specification
ds9 -regions load foo.reg # load foo.reg into current frame
ds9 -regions load all foo.reg # load foo.reg into all frames
ds9 -regions load '*.reg'# expand *.reg and load into current frame
ds9 -regions load all '*.reg' # expand *.reg and load into all
-red
For RGB frames, sets the current color channel to red.
Syntax

-red
Example:
ds9 -red foo.fits
-restore
Restore DS9 to a previous state from a backup save set.
Syntax

-restore <filename>
Example:
ds9 -restore ds9.bck
-rgb
Create RGB frame and control RGB frame parameters.
Syntax

-rgb []
[red| green| blue]
[channel [red| green| blue] ]
[view [red| green| blue] [yes| no] ]
[system <coordsys> ]
[lock wcs| crop| slice| bin| scale| colorbar| smooth [yes| no] ]
[open| close]
Example:
ds9 -rgb # create new rgb frame
ds9 -rgb red # set current channel to red
ds9 -rgb channel red # set current channel to red
ds9 -rgb view blue no # turn off blue channel
ds9 -rgb system wcs # set rgb coordinate system
ds9 -rgb lock wcs yes
ds9 -rgb lock crop yes
ds9 -rgb lock slice yes
ds9 -rgb lock bin yes
ds9 -rgb lock scale yes
ds9 -rgb lock colorbar yes
ds9 -rgb lock smooth yes
ds9 -rgb open
ds9 -rgb close
-rgbarray
-rgbcube
-rgbimage
-rotate
Controls the rotation angle (in degrees) of the current frame.
Syntax

-rotate [<value> ]
[to <value> ]
[open| close]
Example:
ds9 -rotate 45
ds9 -rotate to 30
ds9 -rotate open
ds9 -rotate close
-samp
Enable/Disable SAMP protocol.
Syntax

-samp [yes| no]
[broadcast [image| table] ]
[send [image| table] <application> ]
Example:
ds9 -samp yes
ds9 -samp broadcast image
ds9 -samp send image aladin
-save
Save loaded image data of current frame as FITS.
Syntax

-save[fits| rgbimage| rgbcube| mecube| mosaic| mosaicimage] <filename>
[image| table| slice]
Example:
ds9 -save foo.fits
ds9 -save fits foo.fits image
ds9 -save fits foo.fits table
ds9 -save fits foo.fits slice
ds9 -save rgbimage foo.fits
ds9 -save rgbcube foo.fits
ds9 -save mecube foo.fits
ds9 -save mosaic foo.fits
ds9 -save mosaicimage foo.fits
-saveimage
-scale
Controls the limits and color scale distribution.
Syntax

-scale [linear| log| pow| sqrt| squared| asinh| sinh| histequ]
[log exp <value> ]
[datasec yes| no]
[limits <minvalue> <maxvalue> ]
[mode minmax| <value> | zscale| zmax]
[scope local| global]
[match]
[lock [yes| no] ]
[open| close]
Example:
ds9 -scale linear
ds9 -scale log exp 100
ds9 -scale datasec yes
ds9 -scale histequ
ds9 -scale limits 1 100
ds9 -scale mode zscale
ds9 -scale mode 99.5
ds9 -scale scope local
ds9 -scale match
ds9 -scale lock yes
ds9 -scale open
ds9 -scale close
-shm
Load a shared memory segment into the current frame.
Syntax

-shm [<key> [<filename> ] ]
[key <id> [<filename> ] ]
[shmid <id> [<filename> ] ]
[fits [key| shmid] <id> [<filename> ] ]
[mosaicimage [iraf| wcs| wcsa...wcsz| wfpc2] [key| shmid] <id>
[<filename> ] ]
[mosaicimagenext [wcs| wcsa...wcsz] [key| shmid] <id>
[<filename> ] ]
[mosaic [iraf| wcs| wcsa...wcsz] [key| shmid] <id> [<filename> ] ]
[rgbcube [key| shmid] <id> [<filename> ] ]
[rgbimage [key| shmid] <id> [<filename> ] ]
[rgbarray [key| shmid] <id>
[xdim=<x> , ydim=<y> | dim=<dim> , zdim=3] , bitpix=<b> , [skip=<s> ] ]
[array [key| shmid] <id>
[xdim=<x> , ydim=<y> | dim=<dim> ] , bitpix=<b> , [skip=<s> ] ]
Example:
ds9 -shm 102
ds9 -shm key 102
ds9 -shm shmid 102 foo
ds9 -shm fits 100 foo
ds9 -shm mosaicimage iraf key 100 foo
ds9 -shm mosaicimage wcs key 100 foo
ds9 -shm mosaicimage wcsa key 100 foo
ds9 -shm mosaicimage wfpc2 key 100 foo
ds9 -shm mosaicimagenext wcs key 100 foo
ds9 -shm mosaic iraf key 100 foo
ds9 -shm mosaic wcs key 100 foo
ds9 -shm rgbcube key 100 foo
ds9 -shm rgbimage key 100 foo
ds9 -shm rgbarray shmid 102 [dim=32, zdim=3, bitpix=-32]
ds9 -shm array shmid 102 [dim=32, bitpix=-32]
-single
Set display mode to single.
Syntax

-single
Example:
ds9 -single
-skyview
Support for SkyView image server at HEASARC.
Syntax

-skyview []
[<object> ]
[name <object> ]
[coord <ra> <dec> degrees| sexagesimal] # in wcs fk5
[size <width> <height> degrees| arcmin| arcsec]
[save yes| no]
[frame new| current]
[update frame| crosshair]
[survey sdssi| sdssr| sdssg| sdssu| sdssg]
[open| close]
Example:
ds9 -skyview
ds9 -skyview m31
ds9 -skyview name m31
ds9 -skyview coord 00:42:44.404 +41:16:08.78 sexagesimal
ds9 -skyview size 60 60 arcmin
ds9 -skyview save yes
ds9 -skyview frame current
ds9 -skyview update frame
ds9 -skyview survey sdssi
ds9 -skyview open
ds9 -skyview close
-sleep
Delays execution for specified number of seconds. Default is 1
second.
Syntax

-sleep [#]
Example:
ds9 -sleep
ds9 -sleep 2
-slice
noslice
Indicates next files loaded are to treated as slices of a cube. Can
be disabled with noslice command.
Syntax

-slice <filename>
-noslice
Example:
ds9 -slice *.fits
ds9 -noslice
-smooth
Smooth current image or set smooth parameters.
Syntax

-smooth []
[yes| no]
[function boxcar| tophat| gaussian]
[radius <int> ]
[open| close]
[match]
[lock [yes| no] ]
Example:
ds9 -smooth
ds9 -smooth yes
ds9 -smooth function tophat
ds9 -smooth radius 4
ds9 -smooth open
ds9 -smooth close
ds9 -smooth match
ds9 -smooth lock yes
-squared
Select squared scale function for the current frame.
Syntax

-squared
Example:
ds9 -squared
-sqrt
Select square soot scale function for the current frame.
Syntax

-sqrt
Example:
ds9 -sqrt
-source
Source TCL code from a file.
Syntax

-source filename
Example:
ds9 -source extensions.tcl
-tcl
Enable tcl commands to be executed via XPA or SAMP. This can be a
major security risk and is disabled by default. Please use with
caution.
Syntax

-tcl [yes| no]
Example:
ds9 -tcl yes
-theme
Select GUI theme. Use native for the recommended theme for your
platform. Note: not all themes are available on all platforms.
Syntax

-theme [native| clam| alt| default| classic| aqua| vista| win| xp]
Example:
ds9 -theme clam
-threads
Set number of process threads for functions which are multi-threaded.
Syntax

-threads #
Example:
ds9 -threads 8
-tiff
Load TIFF image into current frame.
Syntax

-tiff <filename>
Example:
ds9 -tiff foo.tiff

$cat foo.fits | ds9 -tiff -
-tile
Controls the tile display mode.
Syntax

-tile []
[yes| no]
[mode grid| column| row]
[grid]
[grid mode [automatic| manual] ]
[grid layout <col> <row> ]
[grid gap <pixels> ]
[row]
[column]
Example:
ds9 -tile
ds9 -tile yes
ds9 -tile mode row
ds9 -tile grid
ds9 -tile grid mode manual
ds9 -tile grid layout 5 5
ds9 -tile grid gap 10
ds9 -tile row
ds9 -tile column
-title
Changes the display window title to the specified name.
Syntax

-title name
Example:
ds9 -title Voyager
-unix
Set the IRAF unix socket name, used by IRAF to communicate with DS9.
The default is /tmp/.IMT%d, so that the standard IRAF unix socket is
defined.
Syntax

-unix name
Example:
ds9 -unix "/tmp/.IMT%d"
-unix_only
-update
Updates the current frame or region of frame. In the second form, the
first argument is the number of the fits HDU (starting with 1) and
the remaining args are a bounding box in IMAGE coordinates. By
default, the screen is updated the next available idle cycle.
However, you may force an immediate update by specifying the NOW
option.
Syntax

-update []
[# x1 y1 x2 y2] [now]
[now # x1 y1 x2 y2]
[on]
[off]
Example:
ds9 -update
ds9 -update 1 100 100 300 400
ds9 -update now
ds9 -update now 1 100 100 300 400
ds9 -update off # delay refresh of the screen while loading files
ds9 -update on # be sure to turn it on when you are finished loading
-url
Load FITS from URL into the current frame
Syntax

-url <url>
Example:
ds9 -url http://foo.bar.edu/foo.fits
-version
Returns the current version of DS9 and exits.
Syntax

-version
Example:
ds9 -version
-view
Controls the GUI and visible RGB frame color channels.
Syntax

-view [layout horizontal| vertical]
[info yes| no]
[panner yes| no]
[magnifier yes| no]
[buttons yes| no]
[colorbar yes| no]
[graph horizontal| vertical yes| no]
[filename yes| no]
[object yes| no]
[minmax yes| no]
[lowhigh yes| no]
[frame yes| no]
[image| physical| wcs| wcsa...wcsz yes| no]
[red yes| no]
[green yes| no]
[blue yes| no]
Example:
ds9 -view layout vertical
ds9 -view info yes
ds9 -view panner yes
ds9 -view magnifier yes
ds9 -view buttons yes
ds9 -view colorbar yes
ds9 -view graph horizontal yes
ds9 -view filename yes
ds9 -view object yes
ds9 -view minmax yes
ds9 -view lowhigh yes
ds9 -view frame yes
ds9 -view wcsa yes
ds9 -view red yes
ds9 -view green yes
ds9 -view blue yes
-visual
Force DS9 to use the specified color visual. This argument MUST be
the first argument listed. Requires the visual be available.
Syntax

-visual
[pseudocolor| pseudocolor8| truecolor| truecolor8| truecolor16| truecolor24]
Example:
ds9 -visual truecolor24
-vla
Support for VLA Sky Survey.
Syntax

-vla []
[<object> ]
[name <object> ]
[coord <ra> <dec> degrees| sexagesimal] # in wcs fk5
[size <width> <height> degrees| arcmin| arcsec]
[save yes| no]
[frame new| current]
[update frame| crosshair]
[survey first| stripe82]
[open| close]
Example:
ds9 -vla
ds9 -vla m31
ds9 -vla name m31
ds9 -vla coord 00:42:44.404 +41:16:08.78 sexagesimal
ds9 -vla size 60 60 arcmin
ds9 -vla save yes
ds9 -vla frame current
ds9 -vla update frame
ds9 -vla survey stripe82
ds9 -vla open
ds9 -vla close
-vo
Invoke an connection to a Virtual Observatory site.
Syntax

-vo [method xpa| mime]
[server <url> ]
[internal yes| no]
[delay #]
[<url> ]
[connect <url> ]
[disconnect <url> ]
[open| close]
Example:
ds9 -vo method xpa
ds9 -vo server "http://foo.bar.edu/list.txt"
ds9 -vo internal yes
ds9 -vo delay 15 # keep-alive delay
ds9 -vo chandra-ed
ds9 -vo connect chandra-ed
ds9 -vo disconnect chandra-ed
ds9 -vo open
ds9 -vo close
-wcs
galactic arcsec
ds9 foo.fits -crop match wcs
ds9 foo.fits -crop lock wcs
-web
Display specified URL in the web display.
Syntax

-web [new| <webname> ] [<url> ]
[<webname> ] [click back| forward| stop| reload| #]
[<webname> ] [clear]
[<webname> ] [close]
Example:
ds9 -web www.cnn.com
ds9 -web new www.cnn.com
ds9 -web hvweb www.apple.com
ds9 -web click back
ds9 -web click 2
ds9 -web clear
ds9 -web close
-width
Set the width of the image display window. Use the geometry command
to set the overall width and height of the ds9 window.
Syntax

-width [<value> ]
Example:
ds9 -width 512
-xpa
Configure XPA at startup.
Syntax

-xpa [yes| no]
[inet| local| unix| localhost]
[noxpans]
Example:
ds9 -xpa no
ds9 -xpa local
ds9 -xpa noxpans
-zmax
Set Scale Limits based on the IRAF algorithm and maximum data value.
Syntax

-zmax
Example:
ds9 -zmax
-zoom
Controls the current zoom value for the current frame.
Syntax

-zoom [<value> ]
[<value> <value> ]
[to <value> ]
[to <value> <value> ]
[to fit]
[open| close]
Example:
ds9 -zoom 2
ds9 -zoom 2 4
ds9 -zoom to 4
ds9 -zoom to 2 4
ds9 -zoom to fit
ds9 -zoom open
ds9 -zoom close
-zscale
-print
Controls printing. Use print option to set printing options. Use
print to actually print.
Syntax

-print [destination printer| file]
[command <command> ]
[filename <filename> ]
[color rgb| cmyk| gray]
[level 1| 2]
[resolution 53| 72| 75| 150| 300| 600]
Example:
ds9 -print
ds9 -print destination file
ds9 -print command 'gv -'
ds9 -print filename foo.ps
ds9 -print color cmyk
ds9 -print level 2
ds9 -print resolution 75

FILES

The complete text of the DS9 manual may be found on Debian systems at /usr/share/doc/saods9-doc/ref/.

AUTHOR

DS9 is a product of the Smithsonian Astrophysical Observatory.
This manual page was generated from the DS9 HTML documentation by a script written by Justin Pryzby and Ole Streicher.

SEE ALSO

xpaget(1), xpaset(1), xpaaccess(1), xpamb(1), xpainfo(1), xpans(1), xpachanges(7),
03 Jul 2012