Downloads and Installation: Difference between revisions

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= *New* SPEDAS 6.1 released (May 2024) =


=== Which distribution should I download? ===
The QA process for SPEDAS 6.1 has now been completed, and this version
of the software is now released for general use for users who have paid
for IDL licenses. This release includes improved support for HTTPS downloads,
updated plugin support for the ERG, IUGONET, THEMIS, MMS and other missions, and
many bug fixes and performance improvements.


If you already have IDL installed and licensed, the "Source Code" distribution is the best choice. It is the only way to obtain full access to the complete set of command line utilities; the "Save File" and "Executable File" releases only operate via the GUI, but they can be used without having to pay for an IDL license.
If you have an [https://www.nv5geospatialsoftware.com/Products/IDL IDL software] license, then you can download
and use either the SPEDAS 6.1 release or the untested nightly build. Check with your system administrator on how to obtain and install IDL.  


For the most common platforms (64-bit Windows, 64-bit MacOs, 64-bit Linux), we have built standalone executables (with the IDL Virtual Machine environment included), using two different IDL versions. The IDL 7.1 builds will generally produce better-looking plots with the default settings, because IDL 8.0 and above calculate font sizes in a slightly different, non-backward-compatible way. However, IDL 8.3 has some optimizations that improve memory and CPU performance compared to IDL 7.1.
If you don't have an IDL license, then you have two choices: you can either use the self-contained executables we provide, or you can separately install the IDL Virtual Machine (VM) and use the save file we provide, see below.


For Linux, we also offer a choice of which GEOPACK library is bundled with the executable files. We recommend Geopack 9.3 if your system supports it; however, it requires a relatively recent version (2.14 or later) of the glibc library. For older systems, we also offer Linux builds with GEOPACK 7.6, which has a reduced feature set, but is more backward compatible.
Release notes for SPEDAS 6.1 are available [https://spedas.org/downloads/SPEDAS_6_0_release_notes.pdf here].


The GEOPACK code is distributed with permission of Dr. Haje Korth, who developed the IDL interface to the original FORTRAN library by N.A. Tsyganenko. For more information, please visit http://ampere.jhuapl.edu/code/idl_geopack.html or email haje.korth@jhuapl.edu .
= If you have an IDL license =


For other platforms (for example, Solaris, or anything 32-bit), we offer a "Save File only" release, but without bundling it with the IDL Virtual Machine Runtime. You will need to register at exelvis.com and download the full IDL runtime for them; this download will include the IDL Virtual Machine software which can be used to run SPEDAS without needing to purchase an IDL license. As with the "Executable file" distribution, this distribution only works with the GUI, and the command line features are not available.
== Download SPEDAS 6.1 (May 2024) ==


If you have an IDL license, you can download the SPEDAS 6.1 release, which contains the full source code:


=== Version 1.00, August 2014 ===
* [https://spedas.org/downloads/spedas_6_1.zip SPEDAS 6.1, IDL source code (~77 MB)]


1. '''Source code.'''  This is a zip file with all the SPEDAS IDL source code. To use it you need to have IDL installed. This is the only distribution that provides full access to the command line tools. If you have used TDAS in the past, this is probably the option you should use.
Unzip the file you downloaded in a directory of your choice and create a new IDL project that includes this directory.  


  * [http://spedas.org/downloads/spedas_1_00.zip Download SPEDAS 1.00 source code (13 MB)]
You may also need to separately download and install the latest CDF DLM from NASA and the latest Geopack DLM -- see below for details.  


2. '''Save file.''' This is suitable for users without an IDL license. It requires the IDL Virtual Machine (VM) which has to be downloaded for free from Exelis. There are limitations using the VM compared to the full IDL. This distribution only provides access to the GUI, and not the command line tools.
To start the SPEDAS GUI from the IDL command line, type: '''spd_gui'''


* [http://spedas.org/downloads/spedas_10_savefile_83b.zip Download the SPEDAS 1.00 savefile (14 MB)]
== SPEDAS nightly build ==


3. '''Executable files.''' These zip files contain executable files that can be run directly without installing anything else. They include a Virtual Machine (VM) version of IDL and they open the SPEDAS GUI but they do not include a command line tool, nor the SPEDAS IDL source code. They also include Geopack. (Note: If you have downloaded a zip file before Dec 5th, 2014, then you should download it again. The new version contains small fixes.)
Alternatively, you can download the nightly build instead of the SPEDAS 6.1 release. This is built every day and it contains the most recent source code,
but it is untested and you may encounter bugs and unresolved problems. It can be installed the same way as the SPEDAS 6.1 release, above.


    IDL 8.3
* [https://spedas.org/downloads/spdsw_latest.zip Download the latest SPEDAS nightly build]
        * [http://spedas.org/downloads/spedas_10_win64_83_93b.zip Download SPEDAS 1.0 Executable, Windows 64bit, IDL 8.3, Geopack 9.3 (52 MB)]
        * [http://spedas.org/downloads/spedas_10_mac64_83_93b.zip Download SPEDAS 1.0 Executable, MacOs 64bit, IDL 8.3, Geopack 9.3 (60 MB)]
        * [http://spedas.org/downloads/spedas_10_linux64_83_93b.zip Download SPEDAS 1.0 Executable, Linux 64bit, IDL 8.3, Geopack 9.3 (70 MB)]
        * [http://spedas.org/downloads/spedas_10_linux64_83_76b.zip Download SPEDAS 1.0 Executable, Linux 64bit, IDL 8.3, Geopack 7.6 (70 MB)]


    IDL 7.1
== IDL libraries ==
        * [http://spedas.org/downloads/spedas_10_win64_71_93b.zip Download SPEDAS 1.0 Executable, Windows 64bit, IDL 7.1, Geopack 9.3 (34 MB)]
        * [http://spedas.org/downloads/spedas_10_mac64_71_93b.zip Download SPEDAS 1.0 Executable, MacOs 64bit, IDL 7.1, Geopack 9.3 (48 MB)]
        * [http://spedas.org/downloads/spedas_10_linux64_71_93b.zip Download SPEDAS 1.0 Executable, Linux 64bit, IDL 7.1, Geopack 9.3 (53 MB)]
        * [http://spedas.org/downloads/spedas_10_linux64_71_76b.zip Download SPEDAS 1.0 Executable, Linux 64bit, IDL 7.1, Geopack 7.6 (53 MB)]


The Enhancement Lists for SPEDAS Version 1.00 can be found [http://spedas.org/downloads/spedas_v1_00_enhancements.pdf here].
=== IDL Geopack library ===


   
To use the Tsyganenko Model extensions with the SPEDAS software, you need to download and install the Geopack DLM. We recommend using the latest version.
=== Installation on a Mac ===
 
* [https://www.korthhaus.com/index.php/idl-software/idl-geopack-dlm/ Download the Geopack Library]
 
* [https://ampere.jhuapl.edu/tools/ Download older versions of the Geopack Library]
 
Installation instructions can be found on the download page, but usually you have to copy two files into the IDL bin directory, 1) a .dlm file and 2) either a .so file (Linux, Mac) or a .dll file (Windows).
 
You can check which version of Geopack DLM you have, by typing this at the IDL command prompt: '''help, 'geopack', /dlm'''
 
=== IDL CDF library ===
 
We recommend downloading and installing the most recent version of the CDF DLM for IDL from NASA:
 
* [https://cdf.gsfc.nasa.gov/html/cdf_patch_for_idl.html Download the CDF Library]
 
The suggested installation method is to run the install script for your operating system (e.g., install_idl_win.bat for Windows, install_idl_win.sh for macOS/Linux). Running these scripts will download the latest version of the library and install them to your chosen IDL installation folder.
 
You can check which version of CDF you have, by typing this at the IDL command prompt: '''help, 'cdf', /dlm'''
 
=== IDL SPICE library ===
 
Some functions (for example, cspice_str2et) require the NASA SPICE library. This library can be downloaded directly from NASA:
 
* [https://naif.jpl.nasa.gov/naif/toolkit_IDL.html Download the NASA IDL SPICE library]
 
The installation is similar to any other dlm library. On windows, you have to copy two files (icy.dlm, icy.dll) into the bin.x86_64 directory of the IDL installation folder.
 
For more information, see:
 
* [https://naif.jpl.nasa.gov/naif/aboutspice.html Information on the NASA IDL SPICE library]
 
=== IDL DAS2 Library ===
 
Das2dlm is an IDL DLM that provides bindings for the das2c library for connecting with DAS2 servers. It is compatible with IDL 8.0 or newer. 
 
The installation is similar to any other dlm library. On Windows, you have to copy two files (das2c.dlm, das2c.x86_64.dll) into the bin.x86_64 directory of the IDL installation folder, and similarly for Linux (das2c.dlm, das2c.linux.x86_64.so) and Mac (das2c.dlm, das2c.darwin.x86_64.so).
 
* [https://github.com/das-developers/das2dlm/releases Zip files for DAS2 dlm]
 
For more information, see:
 
* [https://github.com/das-developers/das2dlm Github DAS2 project]
 
You can check which version of Das2c DLM you have, by typing this at the IDL command prompt: '''help, 'das2c', /dlm'''
 
= If you don't have an IDL license =
 
SPEDAS is free software but if you do not have an IDL license, then you cannot use the IDL command line, and hence neither the SPEDAS command line tools. You can still use the SPEDAS GUI, and you have two options:
 
# Download the SPEDAS executable (for Linux, MacOS, or Windows), or
# Download the SPEDAS save file (for Solaris or other operating systems).
 
== Download the SPEDAS executables, Version 6.1 (May 2024) ==
 
For users without IDL licenses, you can use the SPEDAS 6.1 executable files for Linux, Windows, and MacOS, which allow access to the Graphical User Interface capabilities of SPEDAS, with no IDL license required. 
 
* [https://spedas.org/downloads/spedas_6_1_win64_85_109.zip SPEDAS 6.1, Windows 64bit executable with IDL 8.5.1, CDF 3.9, Geopack 10.9 (~55 MB)]
* [https://spedas.org/downloads/spedas_6_1_mac64_85_109.zip SPEDAS 6.1, MacOs 64bit executable with IDL 8.5.1, CDF 3.9, Geopack 10.9 (~70 MB)]
* [https://spedas.org/downloads/spedas_6_1_linux64_85_109.zip SPEDAS 6.1, Linux 64bit executable with IDL 8.5.1, CDF 3.9, Geopack 10.9 (~70 MB)]
  * [https://spedas.org/downloads/spedas_6_1_linux64_85_76.zip SPEDAS 6.1, Linux 64bit executable with IDL 8.5.1, CDF 3.9, Geopack 7.6 (~70 MB) - includes Geopack 7.6, for older Linux machines that may not work with Geopack 10.9]
 
This release contains everything you need, including the IDL VM, the Geopack DLM and the CDF DLM.
 
For Linux, you just have to unzip the file and run the spedas executable (in the spd_gui folder) and the SPEDAS GUI will appear.
 
For Windows, after unzipping the file and launching spd_gui/spedas.exe, depending on your Windows security settings, you may see a popup window with a security warning about running programs downloaded from the internet.  If this happens, there should be a button labeled "More info" -- if you click it, you should then see an option to run the program anyway.  You should only have to do this the first time you run the SPEDAS executable.
 
For Mac, after unzipping the file, there are some additional steps you should take, in order to add some exceptions to the security policies for the SPEDAS executable and the various libraries it needs to run.  Please read and follow the instructions in the README.txt file in the top level folder after unzipping.  Again, this should only be needed the first time you attempt to run the executable.
 
== Download the SPEDAS save file, Version 6.1 (May 2024) ==
 
The SPEDAS save file requires the run-time [https://www.nv5geospatialsoftware.com/Support/Self-Help-Tools/Help-Articles/Help-Articles-Detail/ArtMID/10220/ArticleID/17309/The-IDL-Virtual-Machine IDL Virtual Machine (VM)] which has to be downloaded for free from NV5. There are limitations using the VM compared to the full IDL.
 
* [https://spedas.org/downloads/spedas_6_1_savefile_85.zip SPEDAS 6.1, IDL Savefile (40 MB)]
 
To run SPEDAS using the IDL virtual machine,
 
# start the IDL virtual machine executable
# click through the splash screen to get to the file selection dialog
# navigate to the SPEDAS installation
# go into the thm_gui_new directory and click on thm_gui.sav
 
This should bring up the main screen of the SPEDAS GUI.  From this point you should be able to load, plot, and analyze data through the GUI.
 
 
= Troubleshooting and special considerations =
 
== IDL Installation issues on Mac ==
 
If you are installing IDL on a Mac in order to run the source code SPEDAS distribution, there are a few issues you might run into
that require special attention.  IDL and SPEDAS depend on the XQuartz library, which may not be installed by default.  The IDL workbench has a dependency on Java 6, which Apple considers obsolete, so you need to take some extra steps to get it successfully installed.  The stricter security measures in recent MacOS releases may require you to add a number of exceptions to security policies that prevent third-party libraries or executables from running. There is also an IDL workbench configuration setting which might need to be changed in order to prevent idlde (the IDL workbench) from crashing when calling external libraries provided as IDL DLMs, such as GEOPACK, ICY, and possibly others. 
 
== Java 6 installation on Mac ==


Newer Mac OS X versions do not include the X11 libraries. XQuartz (X11) has to be downloaded and installed, or IDL will not work.
If the IDL installer gives warnings about Java 6 not being installed, you may have to go through some extra steps to prepare your Mac to run IDL.
Also, you may need to install an older Java version for IDL to work properly.  


* Download and install XQuartz 2.7.8 or later, from here: http://www.xquartz.org/
* Download and install Java for OS X 2015-001, from here: https://support.apple.com/kb/DL1572
* Download and install Java for OS X 2015-001, from here: https://support.apple.com/kb/DL1572
* To be able to install SPEDAS, you have to allow installation of applications from unidentified developers. Instructions can be found here: https://support.apple.com/kb/PH14369?locale=en_US  Detailed information with images on how to override these warnings, are here: https://www.mcvsd.org/tips/powerteacher/osx_unidentified_developers.html
 
If installing the downloaded package fails due to warnings about a newer Java version already being installed, you will
need to run a few Applescript commands to allow the installation to proceed successfully.  See this page for further details:
 
https://www.nv5geospatialsoftware.com/Support/Self-Help-Tools/Help-Articles/Help-Articles-Detail/ArtMID/10220/ArticleID/23780/Mac-OS-Catalina-1015-ENVIIDL-and-Legacy-Java-6-Dependencies.
 
After following the procedure described at the above link, you should be able to complete the installation of Java 6.  Now you can retry the IDL installer without running into the "missing Java 6" issue.
 
== XQuartz installation on a Mac ==
 
On Mac and Linux platforms, IDL depends on the X11 window system and Motif GUI toolkit for most graphics.  Newer Mac OS X versions do not include the X11 libraries. XQuartz (X11) has to be downloaded and installed, or IDL will not work.
 
* Download and install XQuartz 2.8.5 or later, from here: https://www.xquartz.org/
* Run the commands in the following page: [https://spedas.org/wiki/index.php?title=Known_Issues_macOS Known Issues in macOS]
 
If you receive an error similar to the following:
 
<code>Error: attempt to add non-widget child “dsm” to parent “idl” which supports only widgets</code>
 
Then you may be able to resolve it using:
 
<code>sudo mv /opt/X11/lib/libXt.6.dylib{,.bak}
 
sudo cp /opt/X11/lib{/flat_namespace,}/libXt.6.dylib</code>
 
See: https://michaelgalloy.com/2016/11/11/problems-with-xquartz-2-7-11-on-macos.html
 
== Security warnings during installation or runtime on a Mac ==
 
* To be able to install the above software or the executable SPEDAS distribution, you may have to allow installation of applications from unidentified developers.  
** Instructions can be found here: https://support.apple.com/kb/PH25088?locale=en_US   
** Another way to override these warnings is described here: https://www.mcvsd.org/tips/powerteacher/osx_unidentified_developers.html
 
== Security warnings at installation or runtime, MacOS Sierra or later ==
 
Newer versions of MacOS have very strict security measures. You may receive security warnings preventing installation of software from unknown developers while attempting to install IDL or SPEDAS.
   
   
   
If you are trying to install or run the SPEDAS VM executable and receive a security warning, try this:
=== IDL Geopack DLM ===
 
* Move the downloaded zip file from Downloads to your Desktop (or other folder of your choice).
* Unzip the file (if not done automatically), then open a command window, <code>cd</code> to the top level unzipped directory, and execute the following command:
<code>./fix_security_warnings.sh</code>
* Enter the administrator password if prompted.  Running this script should fix most (not necessarily all) of the security warnings.
* Run SPEDAS by double-clicking the file "spedas" in the folder "spd_gui".
* At this point, MacOS will probably ask for security permissions. Do the following:
* Open System Preferences -> Security and Privacy -> General, and select "Allow apps downloaded from: App Store and identified developers".  Keep this tab open while you attempt to run the program.
* If a security warning dialog pops up with options "Move to Trash" or "Cancel", click "Cancel". This should generate a message in the Security and Privacy panel that the program or library was blocked because it is not from an identified developer.  Click "Allow Anyway", which should add that library as an exception to the security policy.  (Sometimes the program you're trying to run will terminate, other times it will continue running).  Run the program again if necessary.
* Upon retrying, you may see a different dialog asking if you're sure you want to open it (with options "Move to Trash", "Open", or "Cancel").  Select "Open". That should suppress the warning for this library if it's needed in the future.
* You may need to do these steps a number of times to approve the various libraries SPEDAS needs to run.  But this should only happen the first time you try to run the program.
 
== Avoiding crashes in external libraries on Mac ==
 
Under certain conditions, when running SPEDAS under the IDL workbench (idlde), IDL may suddenly crash and terminate with no visible warnings or error messages when trying to run code provided as an external DLM (for example, GEOPACK). If this occurs, you can work around the issue by changing a configuration setting to start idlde with the "-outofprocess" flag set.  See the following link for instructions:
 
https://www.nv5geospatialsoftware.com/Support/Maintenance-Detail/ArtMID/13350/ArticleID/18133/How-to-configure-the-IDL-Workbench-on-Linux-Mac-and-Windows-to-automatically-run-in--outofprocess-mode-IDL-821-and-later
 
(Note: the exact file that needs to be modified may depend on the IDL version you're using.  For me, it was idlde.ini, somewhere under the Harris installation folder.)
 
== Known issues on macOS ==
 
For known issues on macOS and solutions, see [https://spedas.org/wiki/index.php?title=Known_Issues_macOS Known issues - macOS]
 
== Installation on Windows ==
 
When we update Geopack DLM or the CDF library on Windows, we have to copy files in the "Program Files\Exelis\IDL84\bin\bin.x86_64" folder (this folder depends on IDL version, for example it could be C:\Program Files\Harris\IDL86\bin\bin.x86_64). When we try to copy files into folders that reside inside Program Files, Windows 10 (and probably older Windows versions, too) will ask for administrator permission as you can see in the following image. In that case, we just have to click the button "Continue". If we are logged in as a user without administrator permissions, then we either have to log in as administrator, or perhaps contact the system administrator for the PC we are using.
 
[[File:Windows10_permissions.PNG||border|center|Request for administrator permission in Windows]]
 
== Known issues on Windows ==
 
For known issues on Windows and solutions, see [https://spedas.org/wiki/index.php?title=Known_Issues_Windows Known issues - MS Windows]
 
== Known issues on Linux ==
 
=== Missing libxp6 library ===
 
New editions of Linux may not be able to run IDL because the library libxp6 is missing. In that case, you have to download the missing library and install it manually:
 
1. Download the 64-bit edition of libxp6 from here:
 
  https://www.ubuntuupdates.org/package/core/precise/main/updates/libxp6
 
2. Install the file you downloaded using:
 
<code>
sudo dpkg -i ./libxp6_1.0.1-2ubuntu0.12.04.2_amd64.deb
 
sudo apt-get install -f
</code>
 
=== Missing libtinfo5 library ===
 
If you get an error message involving libinfo.so.5, you may need to manually install it:
 
<code>sudo apt install libtinfo5</code>
 
=== Missing libidn11 library ===
 
Another possible error is that the library libidn.so.11 is missing. The error message looks like this:
 
<code>
OBJ_NEW: Error loading sharable executable.<br>
Symbol: IDL_Load, File = /home/usern/Downloads/test/spedas_v_6_0/spd_gui/idl85/bin/bin.linux.x86_64/idl_url.so<br>
libidn.so.11: cannot open shared object file: No such file or directory
</code>
 
In that case, you can install the missing library using:
 
<code>
wget https://ubuntu.mirror.garr.it/ubuntu/pool/main/libi/libidn/libidn11_1.33-2.2ubuntu2_amd64.deb
 
sudo dpkg -i libidn11_1.33-2.2ubuntu2_amd64.deb
</code>
 
=== Directory preferences ===
 
Users can specify the IDL_DLM_PATH variable for specific DLM libraries they use.
However, in this case, the <IDL_DEFAULT> should also be included, so that the standard IDL libraries can be loaded.
If <IDL_DEFAULT> is missing, IDL may not work correctly.
For example, on Linux, IDL_DLM_PATH can be set like this in .cshrc:
 
<code>
setenv IDL_DLM_PATH /home/nuser/idldlm:'<IDL_DEFAULT>'
</code>
 
For more information, see: https://www.nv5geospatialsoftware.com/docs/prefs_directory.html.
 
= Running SPEDAS for the first time =
 
The first time you run SPEDAS, please make sure that all the directories where data files will be downloaded exist and have the proper permissions (they should be writable). To do this, launch the SPEDAS GUI (using the command '''spd_gui''') and in the File menu choose Configuration Settings. Make sure that all the directories for SPEDAS and any other missions you use exist and are writable. If you make
any changes, click "Save to File" to have the new settings saved.
[[File:configuration_settings_31.png||border|center|SPEDAS Configuration Settings]]


To use the Tsyganenko Model extensions with the SPEDAS software, you need to download and install Tsyganenko's IDL code (http://ampere.jhuapl.edu/code/idl_geopack.html). Installation instructions can be found in the download page, but basically you have to install two files: a .dlm file and either a .so file (Linux, Mac) or a .dll file (Windows).
= Running SPEDAS from Linux or Mac OS terminal =
For the command line version of IDL, installation consists of setting up the IDL_PATH environment variable.


Simply set the IDL_PATH environment to search all subdirectories of the SPEDAS directory.


=== SPEDAS nightly builds ===
for csh or tcsh, place the following in your .cshrc file:
setenv IDL_PATH ’<IDL_DEFAULT>:+/path/to/spedas’


SPEDAS source code is build nightly. These builds are for testing purposes only.  
for bash or sh, place the following in your .bashrc (Linux, Solaris) or .bash_profile (Mac) file:
export IDL_PATH=’<IDL_DEFAULT>:+/path/to/spedas’


* [http://spedas.org/downloads/spdsw_latest.zip Download latest SPEDAS nightly build]
It is important to replace the text "/path/to/spedas" with the directory on your system that contains the SPEDAS files. This might
be something like: "~/spedas_4_1/idl/" Also, don't forget to include the “+” before the directory. Without this, it will not work.


For a list of older nightly builds, [http://themis.ssl.berkeley.edu/socware/bleeding_edge/ see here].
Additional information can be found in [https://themis.ssl.berkeley.edu/themisftp/3%20Ground%20Systems/3.2%20Science%20Operations/Science%20Operations%20Documents/Software%20Users%20Guides/THEMIS_Users_Guide_THEMIS_Science_Data_Analysis_Software_TDAS_v9.0.pdf THEMIS Use's Guide] pdf file.

Latest revision as of 00:24, 1 June 2024

*New* SPEDAS 6.1 released (May 2024)

The QA process for SPEDAS 6.1 has now been completed, and this version of the software is now released for general use for users who have paid for IDL licenses. This release includes improved support for HTTPS downloads, updated plugin support for the ERG, IUGONET, THEMIS, MMS and other missions, and many bug fixes and performance improvements.

If you have an IDL software license, then you can download and use either the SPEDAS 6.1 release or the untested nightly build. Check with your system administrator on how to obtain and install IDL.

If you don't have an IDL license, then you have two choices: you can either use the self-contained executables we provide, or you can separately install the IDL Virtual Machine (VM) and use the save file we provide, see below.

Release notes for SPEDAS 6.1 are available here.

If you have an IDL license

Download SPEDAS 6.1 (May 2024)

If you have an IDL license, you can download the SPEDAS 6.1 release, which contains the full source code:

* SPEDAS 6.1, IDL source code (~77 MB)

Unzip the file you downloaded in a directory of your choice and create a new IDL project that includes this directory.

You may also need to separately download and install the latest CDF DLM from NASA and the latest Geopack DLM -- see below for details.

To start the SPEDAS GUI from the IDL command line, type: spd_gui

SPEDAS nightly build

Alternatively, you can download the nightly build instead of the SPEDAS 6.1 release. This is built every day and it contains the most recent source code, but it is untested and you may encounter bugs and unresolved problems. It can be installed the same way as the SPEDAS 6.1 release, above.

* Download the latest SPEDAS nightly build

IDL libraries

IDL Geopack library

To use the Tsyganenko Model extensions with the SPEDAS software, you need to download and install the Geopack DLM. We recommend using the latest version.

* Download the Geopack Library
* Download older versions of the Geopack Library

Installation instructions can be found on the download page, but usually you have to copy two files into the IDL bin directory, 1) a .dlm file and 2) either a .so file (Linux, Mac) or a .dll file (Windows).

You can check which version of Geopack DLM you have, by typing this at the IDL command prompt: help, 'geopack', /dlm

IDL CDF library

We recommend downloading and installing the most recent version of the CDF DLM for IDL from NASA:

* Download the CDF Library

The suggested installation method is to run the install script for your operating system (e.g., install_idl_win.bat for Windows, install_idl_win.sh for macOS/Linux). Running these scripts will download the latest version of the library and install them to your chosen IDL installation folder.

You can check which version of CDF you have, by typing this at the IDL command prompt: help, 'cdf', /dlm

IDL SPICE library

Some functions (for example, cspice_str2et) require the NASA SPICE library. This library can be downloaded directly from NASA:

* Download the NASA IDL SPICE library

The installation is similar to any other dlm library. On windows, you have to copy two files (icy.dlm, icy.dll) into the bin.x86_64 directory of the IDL installation folder.

For more information, see:

* Information on the NASA IDL SPICE library

IDL DAS2 Library

Das2dlm is an IDL DLM that provides bindings for the das2c library for connecting with DAS2 servers. It is compatible with IDL 8.0 or newer.

The installation is similar to any other dlm library. On Windows, you have to copy two files (das2c.dlm, das2c.x86_64.dll) into the bin.x86_64 directory of the IDL installation folder, and similarly for Linux (das2c.dlm, das2c.linux.x86_64.so) and Mac (das2c.dlm, das2c.darwin.x86_64.so).

* Zip files for DAS2 dlm

For more information, see:

* Github DAS2 project 

You can check which version of Das2c DLM you have, by typing this at the IDL command prompt: help, 'das2c', /dlm

If you don't have an IDL license

SPEDAS is free software but if you do not have an IDL license, then you cannot use the IDL command line, and hence neither the SPEDAS command line tools. You can still use the SPEDAS GUI, and you have two options:

  1. Download the SPEDAS executable (for Linux, MacOS, or Windows), or
  2. Download the SPEDAS save file (for Solaris or other operating systems).

Download the SPEDAS executables, Version 6.1 (May 2024)

For users without IDL licenses, you can use the SPEDAS 6.1 executable files for Linux, Windows, and MacOS, which allow access to the Graphical User Interface capabilities of SPEDAS, with no IDL license required.

* SPEDAS 6.1, Windows 64bit executable with IDL 8.5.1, CDF 3.9, Geopack 10.9 (~55 MB)
* SPEDAS 6.1, MacOs 64bit executable with IDL 8.5.1, CDF 3.9, Geopack 10.9 (~70 MB)
* SPEDAS 6.1, Linux 64bit executable with IDL 8.5.1, CDF 3.9, Geopack 10.9 (~70 MB)
* SPEDAS 6.1, Linux 64bit executable with IDL 8.5.1, CDF 3.9, Geopack 7.6 (~70 MB) - includes Geopack 7.6, for older Linux machines that may not work with Geopack 10.9

This release contains everything you need, including the IDL VM, the Geopack DLM and the CDF DLM.

For Linux, you just have to unzip the file and run the spedas executable (in the spd_gui folder) and the SPEDAS GUI will appear.

For Windows, after unzipping the file and launching spd_gui/spedas.exe, depending on your Windows security settings, you may see a popup window with a security warning about running programs downloaded from the internet. If this happens, there should be a button labeled "More info" -- if you click it, you should then see an option to run the program anyway. You should only have to do this the first time you run the SPEDAS executable.

For Mac, after unzipping the file, there are some additional steps you should take, in order to add some exceptions to the security policies for the SPEDAS executable and the various libraries it needs to run. Please read and follow the instructions in the README.txt file in the top level folder after unzipping. Again, this should only be needed the first time you attempt to run the executable.

Download the SPEDAS save file, Version 6.1 (May 2024)

The SPEDAS save file requires the run-time IDL Virtual Machine (VM) which has to be downloaded for free from NV5. There are limitations using the VM compared to the full IDL.

* SPEDAS 6.1, IDL Savefile (40 MB)

To run SPEDAS using the IDL virtual machine,

  1. start the IDL virtual machine executable
  2. click through the splash screen to get to the file selection dialog
  3. navigate to the SPEDAS installation
  4. go into the thm_gui_new directory and click on thm_gui.sav

This should bring up the main screen of the SPEDAS GUI. From this point you should be able to load, plot, and analyze data through the GUI.


Troubleshooting and special considerations

IDL Installation issues on Mac

If you are installing IDL on a Mac in order to run the source code SPEDAS distribution, there are a few issues you might run into that require special attention. IDL and SPEDAS depend on the XQuartz library, which may not be installed by default. The IDL workbench has a dependency on Java 6, which Apple considers obsolete, so you need to take some extra steps to get it successfully installed. The stricter security measures in recent MacOS releases may require you to add a number of exceptions to security policies that prevent third-party libraries or executables from running. There is also an IDL workbench configuration setting which might need to be changed in order to prevent idlde (the IDL workbench) from crashing when calling external libraries provided as IDL DLMs, such as GEOPACK, ICY, and possibly others.

Java 6 installation on Mac

If the IDL installer gives warnings about Java 6 not being installed, you may have to go through some extra steps to prepare your Mac to run IDL.

If installing the downloaded package fails due to warnings about a newer Java version already being installed, you will need to run a few Applescript commands to allow the installation to proceed successfully. See this page for further details:

https://www.nv5geospatialsoftware.com/Support/Self-Help-Tools/Help-Articles/Help-Articles-Detail/ArtMID/10220/ArticleID/23780/Mac-OS-Catalina-1015-ENVIIDL-and-Legacy-Java-6-Dependencies.

After following the procedure described at the above link, you should be able to complete the installation of Java 6. Now you can retry the IDL installer without running into the "missing Java 6" issue.

XQuartz installation on a Mac

On Mac and Linux platforms, IDL depends on the X11 window system and Motif GUI toolkit for most graphics. Newer Mac OS X versions do not include the X11 libraries. XQuartz (X11) has to be downloaded and installed, or IDL will not work.

If you receive an error similar to the following:

Error: attempt to add non-widget child “dsm” to parent “idl” which supports only widgets

Then you may be able to resolve it using:

sudo mv /opt/X11/lib/libXt.6.dylib{,.bak}

sudo cp /opt/X11/lib{/flat_namespace,}/libXt.6.dylib

See: https://michaelgalloy.com/2016/11/11/problems-with-xquartz-2-7-11-on-macos.html

Security warnings during installation or runtime on a Mac

Security warnings at installation or runtime, MacOS Sierra or later

Newer versions of MacOS have very strict security measures. You may receive security warnings preventing installation of software from unknown developers while attempting to install IDL or SPEDAS.

If you are trying to install or run the SPEDAS VM executable and receive a security warning, try this:

  • Move the downloaded zip file from Downloads to your Desktop (or other folder of your choice).
  • Unzip the file (if not done automatically), then open a command window, cd to the top level unzipped directory, and execute the following command:

./fix_security_warnings.sh

  • Enter the administrator password if prompted. Running this script should fix most (not necessarily all) of the security warnings.
  • Run SPEDAS by double-clicking the file "spedas" in the folder "spd_gui".
  • At this point, MacOS will probably ask for security permissions. Do the following:
  • Open System Preferences -> Security and Privacy -> General, and select "Allow apps downloaded from: App Store and identified developers". Keep this tab open while you attempt to run the program.
  • If a security warning dialog pops up with options "Move to Trash" or "Cancel", click "Cancel". This should generate a message in the Security and Privacy panel that the program or library was blocked because it is not from an identified developer. Click "Allow Anyway", which should add that library as an exception to the security policy. (Sometimes the program you're trying to run will terminate, other times it will continue running). Run the program again if necessary.
  • Upon retrying, you may see a different dialog asking if you're sure you want to open it (with options "Move to Trash", "Open", or "Cancel"). Select "Open". That should suppress the warning for this library if it's needed in the future.
  • You may need to do these steps a number of times to approve the various libraries SPEDAS needs to run. But this should only happen the first time you try to run the program.

Avoiding crashes in external libraries on Mac

Under certain conditions, when running SPEDAS under the IDL workbench (idlde), IDL may suddenly crash and terminate with no visible warnings or error messages when trying to run code provided as an external DLM (for example, GEOPACK). If this occurs, you can work around the issue by changing a configuration setting to start idlde with the "-outofprocess" flag set. See the following link for instructions:

https://www.nv5geospatialsoftware.com/Support/Maintenance-Detail/ArtMID/13350/ArticleID/18133/How-to-configure-the-IDL-Workbench-on-Linux-Mac-and-Windows-to-automatically-run-in--outofprocess-mode-IDL-821-and-later

(Note: the exact file that needs to be modified may depend on the IDL version you're using. For me, it was idlde.ini, somewhere under the Harris installation folder.)

Known issues on macOS

For known issues on macOS and solutions, see Known issues - macOS

Installation on Windows

When we update Geopack DLM or the CDF library on Windows, we have to copy files in the "Program Files\Exelis\IDL84\bin\bin.x86_64" folder (this folder depends on IDL version, for example it could be C:\Program Files\Harris\IDL86\bin\bin.x86_64). When we try to copy files into folders that reside inside Program Files, Windows 10 (and probably older Windows versions, too) will ask for administrator permission as you can see in the following image. In that case, we just have to click the button "Continue". If we are logged in as a user without administrator permissions, then we either have to log in as administrator, or perhaps contact the system administrator for the PC we are using.

Request for administrator permission in Windows
Request for administrator permission in Windows

Known issues on Windows

For known issues on Windows and solutions, see Known issues - MS Windows

Known issues on Linux

Missing libxp6 library

New editions of Linux may not be able to run IDL because the library libxp6 is missing. In that case, you have to download the missing library and install it manually:

1. Download the 64-bit edition of libxp6 from here:

  https://www.ubuntuupdates.org/package/core/precise/main/updates/libxp6

2. Install the file you downloaded using:

sudo dpkg -i ./libxp6_1.0.1-2ubuntu0.12.04.2_amd64.deb

sudo apt-get install -f

Missing libtinfo5 library

If you get an error message involving libinfo.so.5, you may need to manually install it:

sudo apt install libtinfo5

Missing libidn11 library

Another possible error is that the library libidn.so.11 is missing. The error message looks like this:

OBJ_NEW: Error loading sharable executable.
Symbol: IDL_Load, File = /home/usern/Downloads/test/spedas_v_6_0/spd_gui/idl85/bin/bin.linux.x86_64/idl_url.so
libidn.so.11: cannot open shared object file: No such file or directory

In that case, you can install the missing library using:

wget https://ubuntu.mirror.garr.it/ubuntu/pool/main/libi/libidn/libidn11_1.33-2.2ubuntu2_amd64.deb

sudo dpkg -i libidn11_1.33-2.2ubuntu2_amd64.deb

Directory preferences

Users can specify the IDL_DLM_PATH variable for specific DLM libraries they use. However, in this case, the <IDL_DEFAULT> should also be included, so that the standard IDL libraries can be loaded. If <IDL_DEFAULT> is missing, IDL may not work correctly. For example, on Linux, IDL_DLM_PATH can be set like this in .cshrc:

setenv IDL_DLM_PATH /home/nuser/idldlm:'<IDL_DEFAULT>'

For more information, see: https://www.nv5geospatialsoftware.com/docs/prefs_directory.html.

Running SPEDAS for the first time

The first time you run SPEDAS, please make sure that all the directories where data files will be downloaded exist and have the proper permissions (they should be writable). To do this, launch the SPEDAS GUI (using the command spd_gui) and in the File menu choose Configuration Settings. Make sure that all the directories for SPEDAS and any other missions you use exist and are writable. If you make any changes, click "Save to File" to have the new settings saved.

SPEDAS Configuration Settings
SPEDAS Configuration Settings

Running SPEDAS from Linux or Mac OS terminal

For the command line version of IDL, installation consists of setting up the IDL_PATH environment variable.

Simply set the IDL_PATH environment to search all subdirectories of the SPEDAS directory.

for csh or tcsh, place the following in your .cshrc file: setenv IDL_PATH ’<IDL_DEFAULT>:+/path/to/spedas’

for bash or sh, place the following in your .bashrc (Linux, Solaris) or .bash_profile (Mac) file: export IDL_PATH=’<IDL_DEFAULT>:+/path/to/spedas’

It is important to replace the text "/path/to/spedas" with the directory on your system that contains the SPEDAS files. This might be something like: "~/spedas_4_1/idl/" Also, don't forget to include the “+” before the directory. Without this, it will not work.

Additional information can be found in THEMIS Use's Guide pdf file.