ds9 - image tool for astronomy

ds9 [options]

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.

-help

Displays list of Command Line Options. Users of csh and tcsh may have to quote. Syntax -? -- -help Example: ds9 -- -help ds9 '-?'

-2mass

Support for 2MASS Digital Sky Survey. The first three options will download an image based on the name or specified fk5 coordinate. The remaining options are used to configure downloads. Syntax -2mass [<object> ] [name <object> ] [coord <ra> <dec> ] # in wcs fk5 [survey j| h| k] [size <radius> ] # in arcsec Example: ds9 -2mass m31 ds9 -2mass name m31 ds9 -2mass coord 00:42:44.404 +41:16:08.78 ds9 -2mass survey j ds9 -2mass size 600

-about

Get DS9 credits. Syntax -about Example: ds9 -about

-analysis

Load analysis file. Syntax -analysis filename Example: ds9 -analysis my.analysis

-array

Load an array. Syntax -array <filename> [[xdim=<x> , ydim=<y> | dim=<dim> ] , zdim=<z> , bitpix=<b> , skip= <s> , arch=[littleendian| bigendian] ] Example: ds9 -array bar.arr[xdim=512, ydim=512, zdim=1, bitpix=16] # load 512x512 short ds9 -array bar.arr[dim=256, bitpix=-32, skip=4] # load 256x256 float with 4 byte head ds9 -array bar.arr[dim=512, bitpix=32, arch=littleendian] # load 512x512 long, intel

-bin

Controls binning factor, binning buffer size, and binning function for binning FITS bin tables. Syntax -bin [about <x> <y> ] [buffersize <value> ] [cols <x> <y> ] [factor <value> [<value> ] ] [depth <value> ] [filter <string> ] [function average| sum] [to fit] Example: ds9 -bin about 4096 4096 ds9 -bin buffersize 512 ds9 -bin cols detx dety ds9 -bin factor 4 ds9 -bin factor 4 2 ds9 -bin depth 10 ds9 -bin filter '{pha > 5}' ds9 -bin function sum ds9 -bin to fit

-blink

Activates Blink Mode. Syntax -blink Example: ds9 -blink

-blue

For RGB frames, sets the current color channel to blue. Syntax -blue Example: ds9 -blue foo.fits

-catalog

Support for catalogs. Syntax -catalog [cds sao| hst| gsc| tycho| ac| ua2| ub1| ucac2| 2mass| denis| rosat| rosf| first] [cds <catalogid> ] [load <filename> ] [<catname> ] [name <object> ] [<catname> ] [coordinate <ra> <dec> <coordinate system> ] [<catname> ] [size <width> <height> degrees| arcmin| arcsec] [<catname> ] [save <filename> ] [<catname> ] [filter <string> ] [<catname> ] [filter load <filename> ] [<catname> ] [clear] [<catname> ] [retreive] [<catname> ] [cancel] [<catname> ] [print] [<catname> ] [close] [<catname> ] [server cds| sao| cadc| adac| iucaa| bejing| cambridge| ukirt] [<catname> ] [symbol shape {circle point}| {box point}| {diamond point}| {cross point}| {x point}| {arrow point}| {boxcircle point}| circle| ellipse| box| text] [<catname> ] [symbol color <colorname> ] [<catname> ] [symbol load <filename> ] [<catname> ] [sort <columnname> incr| decr] [<catname> ] [maxrows <number> ] [<catname> ] [allcols] Example: ds9 -catalog cds 2mass ds9 -catalog cds "I/252" ds9 -catalog load foo.cat ds9 -catalog cat2mass symbol color red ds9 -catalog name m51 ds9 -catalog coordinate 202.48 47.21 fk5 ds9 -catalog size 22 22 arcmin ds9 -catalog save bar.cat ds9 -catalog filter "$Jmag> 10" ds9 -catalog filter load foo.flt ds9 -catalog clear ds9 -catalog retreive ds9 -catalog cancel ds9 -catalog print ds9 -catalog close ds9 -catalog server sao ds9 -catalog symbol shape "{boxcircle point}" ds9 -catalog symbol color red ds9 -catalog symbol load foo.sym ds9 -catalog sort "Jmag" incr ds9 -catalog maxrows 2000 ds9 -catalog allcols

-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 <filename> ] [invert yes| no] [value <contrast> <bias> ] Example: ds9 -cmap Heat ds9 -cmap file foo.sao ds9 -cmap invert yes ds9 -cmap value 5 .5

-contour

Controls contours in the current frame. Syntax -contour [yes| no] [copy] [clear] [paste <coordinate system> [<sky frame> ] <color> <width> ] [load <filename> <coordinate system> [<sky frame> ] <color <width> ] [save <filename> <coordinate system> [<sky frame> ] ] Example: ds9 -contour ds9 -contour yes ds9 -contour copy ds9 -contour clear ds9 -contour paste wcs fk4 red 2 ds9 -contour load foo.con wcs fk5 yellow 2 ds9 -contour save foo.con wcs fk5

-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 y <coordinate system> [<sky frame> ] [<sky format> ] ] 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

-datacube

Controls FITS datacube. Syntax -datacube [play| stop| next| prev| first| last] [#] [interval #] Example: ds9 -datacube play ds9 -datacube last ds9 -datacube 3 ds9 -datacube interval 2

-dss

Support for Digital Sky Survey. The first three options will download an image based on the name or specified fk5 coordinate. The remaining options are used to configure downloads. Syntax -dss [<object> ] [name <object> ] [coord <ra> <dec> ] # in wcs fk5 [server sao| stsci| eso] [survey dss| dss2red| dss2blue] [size <width> <height> ] # in arcmin Example: ds9 -dss m31 ds9 -dss name m31 ds9 -dss coord 00:42:44.404 +41:16:08.78 ds9 -dss server eso ds9 -dss survey dss2red ds9 -dss size 10 10

-exit

-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

Only use IRAF input and output fifos. Same as -port 0 -unix none. Syntax -fifo_only Example: ds9 -fifo_only

-fits

Load FITS file. Syntax -fits <filename> Example: ds9 -fits foo.fits

-sfits

Load split FITS file. Syntax -sfits <filename> <filename> Example: ds9 -sfits foo.hdr foo.arr

-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] ] [first] [next] [prev] [last] [frameno #] [#] Example: ds9 -frame center ds9 -frame center 1 ds9 -frame center all ds9 -frame clear ds9 -frame new ds9 -frame new rgb ds9 -frame delete ds9 -frame reset ds9 -frame refresh ds9 -frame hide ds9 -frame show 1 ds9 -frame first ds9 -frame next ds9 -frame prev ds9 -frame last ds9 -frame frameno 4 ds9 -frame 3

-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

-green

For RGB frames, sets the current color channel to green. Syntax -green Example: ds9 -green foo.fits

-grid

Controls coordinate grid. Syntax -grid [yes| no] [load <filename> ] [save <filename> ] [system <coordinate system> ] [sky <sky frame> ] [skyformat <skyformat> ] [type analysis| publication] [type axes interior| exterior] [type numerics interior| exterior] [view grid| axes| title| border| vertical yes| no] [view axes numbers| tickmarks| label yes| no] Example: ds9 -grid ds9 -grid yes ds9 -grid load foo.grd ds9 -grid save foo.grd ds9 -grid system wcs ds9 -grid sky fk5 ds9 -grid skyformat degrees ds9 -grid type analysis ds9 -grid type axes interior ds9 -grid type numerics interior ds9 -grid view grid yes ds9 -grid view axes yes ds9 -grid view axes numbers yes ds9 -grid view axes tickmarks yes ds9 -grid view axes label yes ds9 -grid view title yes ds9 -grid view border yes ds9 -grid view vertical no

-height

Set the height of the image display window. Use the [89] geometry command to set the overall width and height of the ds9 window. Syntax -height [<value> ] Example: ds9 -height 512

-histequ

Select histogram equalization scale for current frame. Syntax -histequ Example: ds9 -histequ

-iconify

Toggles iconification. Syntax -iconify [yes| no] Example: 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

-linear

Select Linear scale for current frame. Syntax -linear Example: ds9 -linear

-lock

Lock frames. Syntax lock [crosshairs none| wcs| wcsa...wcsz| physical| image] Example: ds9 -lock crosshairs wcs

-log

Select LOG scale for current frame. This is the same algorithm as used in IRAF. Syntax -log Example: ds9 -log

-lower

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

-match

Match all other frames to the current frame. Syntax -match [frames wcs| physical| image] [colorbars] [scales] Example: ds9 -match frames wcs ds9 -match colorbars ds9 -match scales

-medatacube

Load multiple extension FITS file as a data cube. Syntax -medatacube <filename> Example: ds9 -medatacube foo.fits

-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 samples. DATAMIN and IRAFMIN will use the values of the keywords if present. In general, it is recommended to use SCAN unless your computer is slow or your data files are very large. Select the increment interval for determining the min and max data values during sampling. The larger the interval, the quicker the process. Syntax -minmax [] [scan| sample| datamin| irafmin] [mode auto| scan| sample| datamin| irafmin] [interval <value> ] Example: ds9 -minmax ds9 -minmax scan ds9 -minmax mode sample ds9 -minmax interval 10

-mode

Select the current mode. Syntax -mode [none| pointer| crosshair| colorbar| pan| zoom| rotate| catalog| examine] Example: ds9 -mode crosshair

-mosaicimage

Load entire FITS Mosaic image composed of multiple extensions in one FITS file. All extensions that are FITS Images and are valid FITS Mosaic Images will be loaded. Syntax -mosaicimage [iraf| wcs| wcsa...wcsz| wfpc2] <filename> Example: ds9 -mosaicimage iraf bar.fits ds9 -mosaicimage wcs bar.fits ds9 -mosaicimage wcsa bar.fits ds9 -mosaicimage wfpc2 hst.fits

-mosaicimagenext

Load entire FITS WCS Mosaic image composed of multiple extensions in one FITS file with out clearing the current frame. All extensions that are FITS Images and are valid FITS Mosaic Images will be loaded. Syntax -mosaicimagenext [iraf| wcs| wcsa...wcsz| wfpc2] <filename> Example: ds9 -mosaicimagenext wcs bar.fits

-mosaic

Load FITS Mosaic image segment. Syntax -mosaic [iraf| wcs| wcsa...wcsz] <filename> Example: ds9 -mosaic iraf foo.fits ds9 -mosaic wcs bar.fits

-smosaic

Load split FITS Mosaic image segment. Syntax -smosaic [iraf| wcs| wcsa...wcsz] <filename> <filename> Example: ds9 -smosaic iraf foo.hdr foo.arr ds9 -smosaic wcs foo.hdr foo.arr

-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] Example: ds9 -nameserver m31 ds9 -nameserver name m31 ds9 -nameserver server ned-sao ds9 -nameserver skyformat sexagesimal

-orient

Controls the orientation of the current frame. Syntax -orient [none| x| y| xy] Example: ds9 -orient xy

-pagesetup

Controls Page Setup options. Syntax -pagesetup [orientation portrait| landscape] [pagescale scaled| fixed] [pagesize letter| legal| tabloid| poster| a4] Example: ds9 -pagesetup orientation portrait ds9 -pagesetup pagescale scaled ds9 -pagesetup pagesize poster

-pan

Controls the current image cursor location for the current frame. Syntax -pan [x y <coordinate system> [<sky frame> ] [<sky format> ] [to x y <coordinate system> [<sky frame> ] [<sky format> ] Example: ds9 -pan 200 200 image ds9 -pan to 400 400 physical ds9 -pan to 13:29:55 47:11:50 wcs fk5

-pixeltable

Display/Hide the pixel table. Syntax -pixeltable [yes| no] Example: ds9 -pixeltable yes

-plot

Display and configure data plots. All plot commands take an optional second command, the plot name. Use xpaget plot to retreive all plot names. 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 both x and y errors To create a new plot, use the plot new command. If the second arg is stdin, the title, x axis title, y axis title, and dimension are assumed to be on the first line of the data. Syntax # create new empty plot window -plot [] [new [name <plotname> ] ] # edit existing plot -plot [<plotname> ] [close] [<plotname> ] [clear] [<plotname> ] [load <filename> xy| xyex| xyey| xyexey] [<plotname> ] [save <filename> ] [<plotname> ] [loadconfig <filename> ] [<plotname> ] [saveconfig <filename> ] [<plotname> ] [print] [<plotname> ] [print destination printer| file] [<plotname> ] [print command <command> ] [<plotname> ] [print filename <filename> ] [<plotname> ] [print palette color| gray| mono] [<plotname> ] [page orientation portrait| landscape] [<plotname> ] [page pagescale scaled| fixed] [<plotname> ] [page pagesize letter| legal| tabloid| poster| a4] [<plotname> ] [graph grid yes| no] [<plotname> ] [graph scale linearlinear| linearlog| loglinear| loglog] [<plotname> ] [graph range x| y auto yes| no] [<plotname> ] [graph range x| y min <value> ] [<plotname> ] [graph range x| y max <value> ] [<plotname> ] [graph labels title| xaxis| yaxis <value> ] [<plotname> ] [font numbers| labels| title font times| helvetica| symbol| courier] [<plotname> ] [font numbers| labels| title size <value> ] [<plotname> ] [font numbers| labels| title style plain| bold| italic] # edit current dataset -plot [<plotname> ] [dataset #] [<plotname> ] [view discrete| line| step| quadratic| errorbar yes| no] [<plotname> ] [color discrete| line| step| quadratic| errorbar <color> ] [<plotname> ] [line discrete circle| diamond| plus| cross] [<plotname> ] [line line| step| quadratic| errorbar width <value> ] [<plotname> ] [line line| step| quadratic dash yes| no] [<plotname> ] [line errorbar style 1| 2] Example: # create new empty plot window ds9 -plot ds9 -plot new ds9 -plot new name foo # edit existing plot ds9 -plot close # close last plot ds9 -plot foo close # close plot foo ds9 -plot clear # clear all datasets ds9 -plot load foo.dat xy # load new dataset with dimension xy ds9 -plot save bar.dat # save current dataset ds9 -plot loadconfig foo.plt # load plot configuration ds9 -plot saveconfig bar.plt # save current plot configuration ds9 -plot print ds9 -plot print destination file ds9 -plot print command "lp" ds9 -plot print filename "foo.ps" ds9 -plot print palette gray ds9 -plot page orientation portrait ds9 -plot page pagescale scaled ds9 -plot page pagesize letter ds9 -plot graph grid yes ds9 -plot graph scale loglog ds9 -plot graph range x auto yes ds9 -plot graph range x min 0 ds9 -plot graph range x max 100 ds9 -plot graph range y auto yes ds9 -plot graph range y min 0 ds9 -plot graph range y max 100 ds9 -plot graph labels title {The Title} ds9 -plot graph labels xaxis {X} ds9 -plot graph labels yaxis {Y} ds9 -plot font numbers font times ds9 -plot font numbers size 12 ds9 -plot font numbers style bold ds9 -plot font labels font times ds9 -plot font title font times # edit current dataset ds9 -plot dataset 2 # set current dataset to the second dataset loaded ds9 -plot view discrete yes ds9 -plot color discrete red ds9 -plot line discrete cross ds9 -plot line step width 2 ds9 -plot line step dash yes ds9 plot line errorbar style 2

-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

-port_only

-prefs

Controls various preference settings. Syntax prefs [save] [clear] [mosaicfast yes| no] [bgcolor white| black| red| green| blue| cyan| magenta| yellow] [nancolor white| black| red| green| blue| cyan| magenta| yellow] Example: ds9 -prefs save ds9 -prefs clear ds9 -prefs mosaicfast no ds9 -prefs bgcolor black ds9 -prefs nancolor red

-preserve

Preserve the follow attributes while loading a new image. Syntax preserve [scale yes| no] [pan yes| no] [regions yes| no] Example: ds9 -preserve scale yes ds9 -preserve pan yes ds9 -preserve regions yes

-print

Controls printing. Use print option to set printing options. Use print to actually print. Syntax -print [destination printer| file] [command <command> ] [filename <filename> ] [palette 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 palette cmyk ds9 -print level 2 ds9 -print resolution 75

-private

use private colormap, valid for pseudocolor 8 mode. Syntax -private Example: ds9 -private

-quit

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

-raise

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

-red

For RGB frames, sets the current color channel to red. Syntax -red Example: ds9 -red foo.fits

-regions

Controls regions in the current frame. Syntax -regions [<filename> ] [load <filename> ] [save <filename> ] [move front] [move back] [select all] [select none] [select group <groupname> ] [delete all] [delete select] [format ds9| ciao| saotng| saoimage| pros| xy] [system image| physical| wcs| wcsa...wcsz] [sky fk4| fk5| icrs| galactic| ecliptic] [skyformat degrees| sexagesimal] [strip yes| no] [wcs yes| no] [shape <shape> ] [color white| black| red| green| blue| cyan| magenta| yellow] [width <width> ] [delim [nl| <char> ] ] [command <marker command> ] [composite] [desolve] [template <filename> ] [savetemplate <filename> ] [group <tag> ] [group <tag> color [black| white| red| green| blue| cyan| magenta| yellow] ] [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] [group <tag> select] [copy] [cut] [paste image| physical| wcs| wcsa...wcsz fk4| fk5| icrs| galactic| ecliptic] [undo] Example: ds9 -regions foo.reg ds9 -regions load foo.reg ds9 -regions save foo.reg ds9 -regions move back ds9 -regions move front ds9 -regions select all ds9 -regions select none ds9 -regions select group foo ds9 -regions delete all ds9 -regions delete select ds9 -regions format ds9 ds9 -regions system wcs ds9 -regions sky fk5 ds9 -regions skyformat degrees ds9 -regions delim nl ds9 -regions strip yes ds9 -regions wcs yes ds9 -regions shape ellipse ds9 -regions color red ds9 -regions width 3 ds9 -regions command {circle 100 100 20} ds9 -regions composite ds9 -regions desolve ds9 -regions template foo.tpl ds9 -regions savetemplate foo.tpl ds9 -regions group foo color red ds9 -regions group foo copy ds9 -regions group foo delete ds9 -regions group foo cut ds9 -regions group foo font {times 14 bold} ds9 -regions group foo move 100 100 ds9 -regions group foo movefront ds9 -regions group foo moveback ds9 -regions group foo property delete no ds9 -regions group foo select ds9 -regions copy ds9 -regions cut ds9 -regions paste wcs fk5 ds9 -regions undo

-rgb

Create RGB frame and control RGB frame parameters. Syntax -rgb # empty [red| green| blue] [channel [red| green| blue] ] [view [red| green| blue] [yes| no] ] [system <coordinate system> ] [lock scale| bin| colorbar [yes| no] 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 scale yes # lock rgb channels for scaling ds9 -rgb lock bin yes # lock rgb channels for binning ds9 -rgb lock colorbar yes # lock rgb colorbar channels

-rgbarray

Load entire RGB image composed of a 3D Array Data Cube that contains red, green, and blue channels. Syntax -rgbarray <filename> [xdim=<x> , ydim=<y> | dim=<dim> , zdim=3] , bitpix=<b> , [skip=<s> ] ] Example: ds9 -rgbarray rgb.arr[dim=200, zdim=3, bitpix=-32]

-rgbcube

Load entire RGB image composed of a FITS 3D Data Cube that contains red, green, and blue channels. Syntax -rgbcube <filename> Example: ds9 -rgbcube rgb.fits

-srgbcube

Load entire RGB image composed of a split FITS 3D Data Cube that contains red, green, and blue channels. Syntax -srgbcube <filename> <filename> Example: ds9 -srgbcube rgb.hdr rgb.arr

-rgbimage

Load entire RGB image composed of a FITS multiple extension file that contains red, green, and blue channels. Syntax -rgbimage <filename> Example: ds9 -rgbimage rgb.fits

-rotate

Controls the rotation angle (in degrees) of the current frame. Syntax -rotate [<value> ] [to <value> ] Example: ds9 -rotate 45 ds9 -rotate to 30

-saveimage

Save visible image(s) as a raster. If image is a data cube, the mpeg option will cycle thru each slice creating a mpeg movie. Syntax -saveimage [fits| jpeg| tiff| png| ppm| mpeg] <filename> Example: ds9 -saveimage jpeg ds9.jpg

-savefits

Save current frame data as FITS. This differs from SAVEIMAGE in that the entire image of the current frame is saved as a FITS, without graphics. Syntax -savefits <filename> Example: ds9 -savefits ds9.fits

-savempeg

Save all active frames as a mpeg movie. Syntax -savempeg <filename> Example: ds9 -savempeg ds9.mpg

-scale

Controls the limits, color scale distribution, and use of DATASEC keyword. Syntax -scale [linear| log| squared| sqrt| histequ] [datasec yes| no] [limits <minvalue> <maxvalue> ] [mode minmax| <value> | zscale| zmax] [scope local| global] Example: 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

-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> ] ] [sfits [key| shmid] <id> <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> ] ] [smosaic [iraf| wcs| wcsa...wcsz] [key| shmid] <id> <id> [<filename> ] ] [rgbcube [key| shmid] <id> [<filename> ] ] [srgbcube [key| shmid] <id> <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 sfits 100 101 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 smosaic wcs key 100 101 foo ds9 -shm rgbcube key 100 foo ds9 -shm srgbcube key 100 101 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

-smooth

Smooth current image or set smooth parameters. Syntax -smooth [yes| no] [function boxcar| tophat| gaussian] [radius <int> ] Example: ds9 -smooth yes ds9 -smooth function tophat ds9 -smooth radius 4

-squared

Select Squared scale for current frame. Syntax -squared Example: ds9 -squared

-sqrt

Select Square Root scale for current frame. Syntax -sqrt Example: ds9 -sqrt

-source

Sources a valid TCL file. Syntax -source filename Example: ds9 -source extensions.tcl

-tile

Controls the tile display mode. Syntax -tile [yes| no] [mode grid| column| row] [grid] [grid mode [automatic| manual] ] [grid layout <row> <col> ] [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

Only use the IRAF unix socket name. This is the same as -fifo none -port 0. Syntax -unix_only Example: ds9 -unix_only

-url

Load FITS file from specified url. Syntax -url <url> Example: ds9 -url 'ftp://foo.bar.edu/img.fits'

-version

Returns the current version of DS9. Syntax -version Example: ds9 -version

-view

Controls the GUI and visible RGB frame color channels. Syntax -view [horizontal| vertical] [info yes| no] [panner yes| no] [magnifier yes| no] [buttons yes| no] [colorbar yes| no] [horzgraph yes| no] [vertgraph yes| no] [filename yes| no] [object yes| no] [minmax yes| no] [frame yes| no] [image| physical| wcs| wcsa...wcsz yes| no] [red yes| no] [green yes| no] [blue yes| no] Example: ds9 -view vertical ds9 -view info yes ds9 -view panner yes ds9 -view magnifier yes ds9 -view buttons yes ds9 -view colorbar yes ds9 -view horzgraph yes ds9 -view vertgraph yes ds9 -view filename yes ds9 -view object yes ds9 -view minmax 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| truecol or24] Example: ds9 -visual truecolor24

-vo

Invoke an connection to a Virtual Observatory site. Syntax -vo <url> Example: ds9 -vo chandra-ed.havard.edu

-wcs

Controls the World Coordinate System for the current frame. If the wcs system, skyframe, or skyformat is modified, the info panel, compass, grid, and alignment will be modified accordingly. Also, a new WCS specification can be loaded and used by the current image regardless of the WCS that was contained in the image file. Please see [90] WCS for more information. Syntax -wcs [wcs| wcsa...wcsz] [system wcs| wcsa...wcsz] [sky fk4| fk5| icrs| galactic| ecliptic] [skyformat degrees| sexagesimal] [align yes| no] [reset] [replace file <filename> ] [append file <filename> ] Example: ds9 -wcs wcs ds9 -wcs system wcs ds9 -wcs sky fk5 ds9 -wcs skyformat sexagesimal ds9 -wcs align yes ds9 -wcs reset ds9 -wcs replace file foo.wcs ds9 -wcs append file foo.wcs

-web

Display specified URL in the web display. -web <url> Example: ds9 -web chandra.harvard.edu

-width

Set the width of the image display window. Use the [91] 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. The option tcl allows the user to send tcl code via xpa to be executed by ds9. Warning: this is a major security risk and is disabled by default. Please use with caution. -xpa [yes| no] [inet| local| unix| localhost] [noxpans] [tcl yes| no] Example: ds9 -xpa no ds9 -xpa local ds9 -xpa noxpans ds9 -xpa tcl yes zmax Set Scale Limits based on the IRAF algorithm and maximum data value. Syntax -zmax Example: ds9 -zmax

-zscale

Set Scale Limits based on the IRAF algorithm. Syntax -zscale Example: ds9 -zscale

-zoom

Controls the current zoom value for the current frame. Syntax -zoom [<value> ] [<value> <value> ] [to <value> ] [to <value> <value> ] [to fit] Example: ds9 -zoom 2 ds9 -zoom 2 4 ds9 -zoom to 4 ds9 -zoom to 2 4 ds9 -zoom to fit

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

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.

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