gang_plot_pos.pro is a nice routine for “ganging” multiple plots onto a single sheet.
I have moved it into /usr/share/astro/idlshare/locallib , which should be in your idl path. therefore you can use it without ever having to manually compile it.
Joel
to determine operating system type, cat /etc/redhat-release
thanks bruce!
ldd <path/executablename> lists what libraries it is looking for (or currently using)
ltrace <executablename programarguments> traces what executable is doing with libs and other stuff and if it gets stuck there’s your problem. (Note this actually runs program which is why input params are needed)
strace <executablename programarguments> show files opening and closing. This also requires running the program. Since the output is extremely lengthy you might want to save it to blablabla.txt by
$strace -o blablabla.txt <executablename programarguments>
If you want to just trace specific system calls (for example open,read since you are interested in what the program is using) you can type
$strace -e open,read <executablename programarguments>
This will give only open and read calls.
-Yuping Huang
Firefox setting for users who’s home dir lives on NFS – Bruce Duffy May 2013
Here’s how to tell Firefox that your homedir is sitting on an NFS filesystem:
This update (10.8) also fixes the following bug:
* In certain environments, storing personal Firefox configuration files
(~/.mozilla/) on an NFS share, such as when your home directory is on a
NFS share, led to Firefox functioning incorrectly, for example, navigation
buttons not working as expected, and bookmarks not saving. This update
adds a new configuration option, storage.nfs_filesystem, that can be used
to resolve this issue.
If you experience this issue:
1) Start Firefox.
2) Type “about:config” (without quotes) into the URL bar and press the
Enter key.
3) If prompted with “This might void your warranty!”, click the “I’ll be
careful, I promise!” button.
4) Right-click in the Preference Name list. In the menu that opens, select
New -> Boolean.
5) Type “storage.nfs_filesystem” (without quotes) for the preference name
and then click the OK button.
6) Select “true” for the boolean value and then press the OK button.
(BZ#809571, BZ#816234)
All Firefox users should upgrade to these updated packages, which contain
Firefox version 10.0.8 ESR, which corrects these issues. After installing
the update, Firefox must be restarted for the changes to take effect.
On June 11, 2014, Yuping Huang said:
I just realized that fsc_color is no longer available because the shared Coyote library was updated a couple weeks ago. So yes the library was updated from its previous early 2000s version. The development for fsc_color stopped at 2011 so now it is not in the library any more, with CGPlot as its successor.
Hence, if you are calling Coyote stuff in idl and found idl telling you that it does not exist, you might want to check the latest Coyote source code online to see if it has been expelled from the library.
Bruce installed the gv package for viewing and printing postscript. It works great for viewing. For printing, it has problems. Bruce developed this workaround (with a few mods by Joel):
‘gv’ uses the ‘lpr’ command, and if a printer as set as the default in CUPS it will use that printer automatically. You can hear the printer warm up, but nothing comes out of the printer.
Fortunately ‘gv’ is packaged with a set of file conversion utilities,
including ‘ps2pdf’. On the command line you can issue this command:
# ps2pdf xxx.ps – | lpr
and that will convert the ps file to pdf (version 1.4) before sending it to lpr. (You can also convert in place – ie turn your postscript file into a pdf on disk with ps2pdf, and then send the pdf to the printer whenever you want.)
To print a ps on the fly, though:
gv’s print command dialog window has a typein labeled ‘print command’
and it’s automagically populated with the string ‘lpr’. However you
can change that string to ‘ps2pdf %s – | lpr’. You can also change
the default print string from ‘lpr’ to whatever you want in
GhostScript options, but that would break printing of non .ps Here’s.
To change the default print string in ‘gv’, select:
State->Setup Options
… Look for the Print Command field, and change the value from
‘lpr’ to ‘ps2pdf %s – | lpr’ (w/o the single quotes).
The change is saved to ~/.gv as the line:
GV.printCommand: ps2pdf %s – | lpr
–bruce via joel
Bruce taught me to put a file called xxx.csh into /etc/profile.d if i want it globally executed (eg environment vars for psr people).
the global /etc/csh.cshrc is smart enough to source any such file!!!!!!!
–joel
canopus,deneb (both up against the window) and mirzam (in Joel’s office)
Newest update 2024 Aug to reflect that backups are have been stored on canopus: for several years:
Go to canopus:/thuban2-backups
Bruce has an automatic (cron) job do a weekly backup of thuban onto canopus.
On canopus,
df -h gives the various mount points, incl
“Filesustem” /dev/mapper/centos_canopis-thuban2–backups”\
” Mounted on” /thuban2/backups
Navigate down to whatever file you’re looknig for, and copy over to a safe place (Careful: do not overwrite newer file of same name on thuban!)
See also post on root superuser privileges on thuban2 (although current post you are reading deals with canopus, which is where weekly backups are stored).
–joel
One might want to plot to screen, interactively adjust parameters, replot to screen, etc; and then when done fiddling; make a final postscript plot. However, . . .
As far as I know, it is a little complicated to plot both to screen and to postscript. One has to send essentially the same commands to each “device”, while also opening and closing them properly.
A good example of doing this is in combine_v7.0.pro, in /usr/share/astro/idlshare/local/recombo2008
————————————————————————————
A simpler version of this problem is the either/or problem – ask user whether she wants to plot to screen OR postscript.
A good example of this is profile_v4.5.pro [in its pro make_plots]
–Joel