I am starting a SLAMM project and want to construct a model in ArcMap
to at least output the ascii grids but hopefully more, like slope
conversion and the data join to the NWI.
Are there command line switches for setting parameters for the SLAMM
There is a command line switch option for setting up SLAMM. It is a new
feature and you need a new executable (attached) Please see the
specifications including the URL below.
Also, a sample batch file is attached.
A reminder, version 6 will be available at the end of this month and
this version will have several new features as well as be fully
open-source. Keep your eye on the SLAMM FORUM for more information.
Good Luck -- Jonathan
Hello to all.
Attached please find a version of SLAMM that works with a
command-line input of a driving file. An example of a "driving
file" (infile_test.txt) and blank template (infile.txt) are also
Please use this URL:
Some features and specifications:
All GUI options on the main screen and GIS options screen
that may be modified by the user may be modified in this
The name of the input file must be passed as a parameter to
the slamm software (e.g. "SLAMM5.0.4.exe infile.txt")
If there is a parse error, the software will raise an error
pointing to the errant line
If "Debug Mode" is set as true, the software will start up
showing the user the selected options on the GUI screen.
This allows the user to see that the parse is working as
expected prior to executing the model.
Otherwise the software will immediately execute the model
with the options selected (without prompting) and the
Procedural messages such as "your simulation is completed"
have been suppressed.
"Fatal" error messages are not suppressed so the user can
see what went wrong. These could potentially be written to
a log file to avoid an iterative procedure from jamming up
completely in a future version. Hopefully, though, no fatal
errors will be encountered in your use of the model.
Also, I'm attaching a version of a site file that includes several
new and optional parameters (such as max fetch threshold and
overwash parameters). See several emails copied below for more
information on this.
While I have tested the new capabilities several times, this
version probably could benefit from more testing cycles; please
let me know immediately if you notice any strange behavior from
these new model capabilities.
-- Jonathan Clough
This is great. Is this going to be available in slamm 6?
I'm relatively new to the command line, but am trying to learn more. Is there a way to have it run successive models, ie for multiple sights successively? I have a large geographic region I'm modeling with 3m lidar data, so I am running into memory limitations. I have 19 sites over a contiguous area and would love to be able to set up a command line input that would run each site successively, instead of having to be here to start each run manually every 4-10 hours? I know this is somewhat outside of slamm topics, but any help or direction to sites that may be helpful would be greatly appreciated!
UPDATE: I think I just figured out how to do this using a batch file.
Is it possible to use relative paths for the infile in the Input Data File and Output Directory paths?
In my tests, relative paths seem to work, relative to the directory in which the program resides: For example
../inputfile.txt moves to the directory in which the SLAMM subdirectory is located
subdirectory/inputfile.txt moves to "subdirectory" off of the SLAMM directory.
As you should know, SLAMM 6 is now publicly available including open-source code:
As of the time of its initial release the "Command Line" option hadn't been fully integrated yet into the model and it now has. The file structure is dramatically different in SLAMM 6 and there is a new mechanism for invoking the command line option:
Save an existing SLAMM6 file as "txt" rather than the "SLAMM6" file-type. (If you look at that file you will see hundreds of parameters, hopefully labeled in a relatively self-evident manner.) You can load that text file and all of your parameters will be loaded into the model. You can pass that file-name as a parameter to the executable and the file will be loaded upon startup or the simulation will be run. To run the simulation automatically and terminate the application on completion you must change the very last line of that file to "ExecuteImmediately: True".
The command-line capability will soon be integrated into the main release of SLAMM6 but currently you must use this link to download the latest version with command-line capabilities.
Hmm, any ideas why I might get an output from the command line version of slamm 6 that looks like that below (upper right)? The lower left is the same area, but run w slamm 5.0.4. I checked the input files, and they seem fine.
ps. In case you're wondering, they're misaligned b/c I haven't projected them yet, so ArcMap just drew them on the screen.
Is it the command line that's producing this problem or just that version of the model?
Does it look like this on the screen or is this just the ASCII output produced by the software?
When I've seen this type of distortion in the past there has been a mismatch in the number of columns specified and the actual number of columns in the ascii file...
This was run with the command line. I haven't tried running it with that version (assuming the command line is a diff. ver. than the original v/6 release). The release executable from the 1st ran everything fine with a 10m resolution. I didn't run the maps, so I don't know the answer to that. This is the ascii from the output. I'll check the columns, but the same set of input ascii files run fine this way in 5.0.4.
OK, I'll check the output. I haven't looked at ascii output from SLAMM6 recently. OK, now I have from our last several projects and there was no problem I could see with any of the ASCII outputs that I created. If you want to send me the input files zipped up I'll be happy to help you debug... -- Jonathan
Hi Dean: I brought your files into SLAMM6 and ran in the command line and ran through 2025 and the GIS output looked fine in MapWindow. This could be a function of MapWindow being less "finicky" about ASCII input rasters than ESRI products, I'm not sure...
I didn't run thorugh 2100 because I need my processor back. Did you see this problem in all rasters output by your version or just those at a particular date? Can you send me one of the "corrupted" rasters? (From e3 in particular?)
I'm checking the rasters for all years now, but having to import them from the ASCII format. I'll let you know how it checks out. So far, 2 of 19 sites were normal (including e3) for year 2100, but the others were all corrupted. I'll send you some of a corrupted site later. Thanks for your help again!
Does the current version of SLAMM 6.0.1 have a command line option?
Yes it still follows the instructions posted above:
- Save an existing SLAMM6 file as "txt" rather than the "SLAMM6" file-type. (If you look at that file you will see hundreds of parameters, hopefully labeled in a relatively self-evident manner.)
- You can load that text file and all of your parameters will be loaded into the model. You can pass that file-name as a parameter to the executable and the file will be loaded upon startup or the simulation will be run.
- To run the simulation automatically and terminate the application on completion you must change the very last line of that file to "ExecuteImmediately: True".
Also see "command line option" in the latest tech doc.
Cheers -- J
I am having a problem running the SLAMM from the command.
I saved the slamm fle as txt and load it from the command. Although the simulation runs the results are not the same to the ones from the manually simulation. Could you please help me on that?
Please provide us with more details. How are the results different? What version of SLAMM are you using. If you'd like to provide us with the SLAMM files we can try to reproduce the problem here. I'm not aware of any problems with the command line version, but I also haven't used it for years. Thanks-- Jonathan