Brian A. Larsen
Graduate Student
Magnetospheric Physics

Montana State University

larsen@physics.montana.edu
(406) 994-7375 Office (x7375)
(406) 994-7383 Lab (x7383)
(406) 994-4452 Fax
KD7NMW on 2m or 70cm

¿Useful? sswidl routines - I got tired of reinventing the wheel so I hunted through the listings

Lockheed SSW documentation

Subject Listing
----If there are more that you like and don't see here send them my way.
/ssw/gen/idl/display

form_histo  
Forms a histogram from the variable ARRAY.
plot_err 
Plot data with error bars in both X and Y directions
plot_histo 
Plots a histogram from the variable ARRAY.
set_x  
Set the device to 'X' with vector fonts.
setps  
To make a "set_plot" call and optional "device" calls. It's useful because the
"set_plot,'ps',/interpolate" should be the default and is not.
/ssw/gen/idl/util

yes_no 
Prompts and checks for a user answer of either YES or NO
/ssw/gen/idl/fund_lib/sdac

get_angle  
This function returns the angle (degrees) between two vectors specified in spherical coordinates of an azimuthal angle and declination, usually right ascension and declination
get_recno  
This function returns the number of lines in an ASCII FILE
y_average 
Get the average value of an array of displayed y values during a selected interval.
/ssw/gen/idl/image

x2ps   
convert X window plot to postscript file
/ssw/gen/idl/genutil

addtime
If optional keyword delta_min is supplied, then add a offset in decimal minutes to an external time (H,M,S,MS,D,M,Y). If optional keyword difference is supplied, return the difference
date2doy
Convert yymmdd into DOY (day of the year). Input can be either string or integer. The year is an Optional return parameter.
file2time  
convert filenames (...[YY]YYMMDD?HHMM[SS]...) -> time
markplot 
highlight features on plot (default is open crosshair)
plot_hist 
To plot a histogram with a properly labeled X
/ssw/gen/idl/widgets

xget_utc 
A widget program to select date/time (UTC) interactively
/ssw/gen/idl/utplot

anytim 
This function converts one of several recognized time formats into the selected
checkvar
This procedure checks sets a non-existent variable to its default values.
utplot 
Plot X vs Y with Universal time labels on bottom X axis.
/ssw/gen/idl/string

alphagen  
return array ['A', 'B', 'C'...] (sindgen with alpha)
arr2str 
Convert an array to a delimited string.
file_or_string 
check if a valid filename or string datatype is being input
trup
simultaneously trim and uppercase a string
/ssw/gen/idl/system

break_file
Break a filename into its component parts.
psclose
Close a PostScript plot file, reset graphics device.
/ssw/gen/idl_libs/astron

minmax
Return a 2 element array giving the minimum and maximum of a vector
moonpos
To compute the RA and Dec of the Moon at specified Julian date(s).
mphase 
Return the illuminated fraction of the Moon at given Julian date(s)
poidev  
Generate a Poisson random deviate
psf_gaussian 
Create a 1-d, 2-d, or 3-d Gaussian with specified FWHM, center
readfmt 
Quickly read a fixed format ASCII data file into IDL variables.
sunpos
To compute the RA and Dec of the Sun at a given date.
/rsi/idl_5.3/lib

ascii_template
Presents a graphical user interface (GUI) which generates a template defining an ASCII file format. Templates are IDL structure variables that may be used when reading ASCII files with the READ_ASCII routine. See READ_ASCII for details on reading ASCII files.
read_ascii
Reads data from an ASCII file into an IDL structure variable. READ_ASCII may be used with templates created by the ASCII_TEMPLATE function.
/ssw_sxt1/yohkoh/sxt/idl/register

c_to_s   
Fixed in my ~/idl
Returns sperical coordinates (r,theta,phi) of a position vector or array of position vectors whose cartesian coordinates are specified by V0.
s_to_c 
Returns Cartesian coordinates (X,Y,Z) of a position vector or array of position vectors whose spherical coordinates are specified by V0.
/ssw/packages/binaries/idl

read_ps_gs
Read the PostScript file 'img_file' into IDL using GhostScript

last modified Tue Jul 2 16:24:54 2002


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