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ds9 - Online in the Cloud

Run ds9 in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command ds9 that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

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 []
[view <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 view 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]
[in]
[out]
[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 in

ds9 -bin out

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

-block Controls blocking parameters.

Syntax
-block[<value> ]
[<value> <value> ]
[to <value> ]
[to <value> <value> ]
[in]
[out]
[to fit]
[match]
[lock [yes| no] ]
[open| close]

Example:

ds9-block 4

ds9-block 4 2

ds9-block to 4

ds9-block to 4 2

ds9-block in

ds9-block out

ds9-block to fit

ds9-block match

ds9-block lock yes

ds9-block open

ds9-block close

-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]
[order 123| 132| 213| 231| 312| 321]
[axes lock [yes| no] ]
[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 order 123

ds9 -cube axes lock yes

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] ]
[axes [yes| no] ]
[scale [yes| no] ]
[scalelimits [yes| no] ]
[colorbar [yes| no] ]
[block [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 axes yes

ds9 -lock scale yes

ds9 -lock scalelimits yes

ds9 -lock colorbar yes

ds9 -lock block 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]
[axes]
[scale]
[scalelimits]
[colorbar]
[block]
[smooth]

Example:

ds9 -match frame wcs

ds9 -match crosshair wcs

ds9 -match crop wcs

ds9 -match slice wcs

ds9 -match bin

ds9 -match axes

ds9 -match scale

ds9 -match scalelimits

ds9 -match colorbar

ds9 -match block

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]
[irafalign yes| no]

Example:

ds9 -prefs clear

ds9 -prefs irafalign yes

-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| scalelimits| colorbar| block| 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 scalelimits yes

ds9 -rgb lock colorbar yes

ds9 -rgb lock block 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]
[match limits]
[lock [yes| no] ]
[lock limits [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 match limits

ds9 -scale lock yes

ds9 -scale lock limits 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]
[pixels <width> <height> ]
[save yes| no]
[frame new| current]
[update frame| crosshair]
[survey <survey> ]
[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 pixels 600 600

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

-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 direction x| y]
[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 direction x

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]
[keyvalue <string> ]
[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]
[keyword yes| no]
[minmax yes| no]
[lowhigh yes| no]
[units yes| no]
[image| physical| wcs| wcsa...wcsz yes| no]
[frame yes| no]
[red yes| no]
[green yes| no]
[blue yes| no]

Example:

ds9 -view layout vertical

ds9 -view keyvalue BITPIX

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 keyword yes

ds9 -view minmax yes

ds9 -view lowhigh yes

ds9 -view wcsa yes

ds9 -view frame 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> ]
[in]
[out]
[to fit]
[open| close]

Example:

ds9 -zoom 2

ds9 -zoom 2 4

ds9 -zoom to 4

ds9 -zoom to 2 4

ds9 -zoom in

ds9 -zoom out

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

Use ds9 online using onworks.net services


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