SALSA Least Squares

Contact owners and managers

1–23 of 23

Welcome to the Google Group collaboration page for the Surveyor’s Applications for Least Squares Adjustment, or SALSA. SALSA is a feature-rich rigorous 3-D geodetic least squares adjustment software package developed by Applied Research Laboratories, The University of Texas at Austin (ARL:UT). We are excited to make SALSA available to the global community of surveyors, geodesists, and anyone who has an interest in optimally combining spatial measurements using weighted least squares.

SALSA is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 3 (GPL-3.0-only) as published by the Free Software Foundation. Refer to the license file, COPYING, in the project root directory for more detail.

SALSA source code and Windows installer file can be obtained from the SALSA project page at https://www.arlut.utexas.edu/salsa

Guidelines for posting to this forum:

Please review the relevant documentation before posting questions; this will help maintain a high quality dialogue on this forum.

If you have questions about using SALSA, please review the User Manual first.
If you have questions about building SALSA, please review the readme.md document at the project root.

Please be kind, helpful, patient, and understanding; this is a community of people helping one another.
In reporting bugs, please include specific steps to reproduce the issue and minimal data sets (or links to data sets) if applicable.
We do not yet have a mechanism to support outside (of ARL:UT) contributions to the project; please let us know if you have a specific contribution (bug fix, file converter, etc.) that you believe would benefit the project, and we will address this on a case by case basis.

Thank you, and enjoy the SALSA!

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Manu Cledat, Matthew Graham3

May 30

Internal Reliability computation

Dear Matthew Graham, Thanks a lot for your quick, accurate, clear and sharp answer! Thus, I will only

unread,

Internal Reliability computation

Dear Matthew Graham, Thanks a lot for your quick, accurate, clear and sharp answer! Thus, I will only

May 30

Robert Hamer, Clark Hughes4

May 8

Memory allocation error

Ok, thank you for that additional info. That's interesting. When time permits we'll take a

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Memory allocation error

Ok, thank you for that additional info. That's interesting. When time permits we'll take a

May 8

Mauro V. Bueno Jr., … Jose Ernesto Muñoz N.11

Apr 22

Error - Singular measurement covariance

Muchas gracias Clark.. Un colega de chile me señalo que ´salsa aplica para cuando hay muchos datos

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Error - Singular measurement covariance

Muchas gracias Clark.. Un colega de chile me señalo que ´salsa aplica para cuando hay muchos datos

Apr 22

Mauro V. Bueno Jr., Clark Hughes2

Mar 31

Hi Mauro, Thank you for reaching out. It looks like the issue is special characters in the file path.

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Hi Mauro, Thank you for reaching out. It looks like the issue is special characters in the file path.

Mar 31

Jerry Mahun, Clark Hughes4

Mar 22

Jerry, Thank you for the thoughtful input. You're absolutely right in that we should reorganize

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Jerry, Thank you for the thoughtful input. You're absolutely right in that we should reorganize

Mar 22

Mar 17

Thanks for developing SALSA and making it freely available. I think the elephant in the room with

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Thanks for developing SALSA and making it freely available. I think the elephant in the room with

Mar 17

aaron bundy, Clark Hughes2

Mar 5

Hi Aaron, Any day now ;) The technical effort on 1.16 is complete, and we're awaiting public

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Hi Aaron, Any day now ;) The technical effort on 1.16 is complete, and we're awaiting public

Mar 5

John Donovan, Clark Hughes3

9/26/23

lsapost creates an HDF file that crashes the GUI

Hi John, Ok a couple of us laid eyes on this project. What you're trying to do is tricky - get a

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lsapost creates an HDF file that crashes the GUI

Hi John, Ok a couple of us laid eyes on this project. What you're trying to do is tricky - get a

9/26/23

John Donovan, Clark Hughes3

4/4/23

Public repository

Hi Clark, Thanks for the swift response. I am looking forward to 1.6 dropping, especially if it eases

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Public repository

Hi Clark, Thanks for the swift response. I am looking forward to 1.6 dropping, especially if it eases

4/4/23

2/10/23

IMPORTING TOTAL STATION (LEICA) GSI fle

H there. Is it possible to import total station data onto SALSA? Thanks

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IMPORTING TOTAL STATION (LEICA) GSI fle

H there. Is it possible to import total station data onto SALSA? Thanks

2/10/23

Andrew Morris, … Connor Walker5

12/14/22

Build trouble on FreeBSD 12

Andrew, Thank you for sharing all of this information and feedback on how to build SALSA on FreeBSD.

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Build trouble on FreeBSD 12

Andrew, Thank you for sharing all of this information and feedback on how to build SALSA on FreeBSD.

12/14/22

Sarah Magliocca

8/29/22

Announcing SALSA 1.15.0

We are excited to announce the latest release of SALSA, 1.15.0, is now available! Please see the

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Announcing SALSA 1.15.0

We are excited to announce the latest release of SALSA, 1.15.0, is now available! Please see the

8/29/22

11/9/21

PARSE WARNING: Trimble Data Exchange Format

Hi All, Could someone help us with this error? I have attached the original file in case it can help

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PARSE WARNING: Trimble Data Exchange Format

Hi All, Could someone help us with this error? I have attached the original file in case it can help

11/9/21

Justo Claudio Eduardo, … Clark Hughes4

10/19/21

Great! Thank you for letting us know. We'll capture this finding and will look into how we might

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Great! Thank you for letting us know. We'll capture this finding and will look into how we might

10/19/21

Brian Davies, Corwin Salsa2

9/8/21

Error codes 8 and 12

Hi Brian, I must admit I'm not fully tracking your question. SALSA employs what we refer to as

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Error codes 8 and 12

Hi Brian, I must admit I'm not fully tracking your question. SALSA employs what we refer to as

9/8/21

V. Kelly Bellis2

4/28/21

Is SALSA able to read .obs files from CEFB? or .lsa files from CMM?

After browsing Chapter 11 of the user manual discussing Custom Import Scripts, I thought that it

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Is SALSA able to read .obs files from CEFB? or .lsa files from CMM?

After browsing Chapter 11 of the user manual discussing Custom Import Scripts, I thought that it

4/28/21

V. Kelly Bellis, Clark Hughes3

4/28/21

Dependencies ought to be included in SALSA-master-1.13.0-win64.msi

Hello Clark, Nice to meet you and thank you for your reply. If HDFView is the only way to read SALSA

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Dependencies ought to be included in SALSA-master-1.13.0-win64.msi

Hello Clark, Nice to meet you and thank you for your reply. If HDFView is the only way to read SALSA

4/28/21

V. Kelly Bellis

4/28/21

SalsaUserManual_1130, Page 8, 2.3 Obtaining HDFView, link update

The referenced HDFView and The HDF Group website listed in the Bibiography is out of date, ie, The

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SalsaUserManual_1130, Page 8, 2.3 Obtaining HDFView, link update

The referenced HDFView and The HDF Group website listed in the Bibiography is out of date, ie, The

4/28/21

Dennis Owen, … Rob Milburn8

4/9/21

WARNING - INVALID COVARIANCE MATRIX

Second attachment attempt. The .job file was too large to attach without zipping.

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WARNING - INVALID COVARIANCE MATRIX

Second attachment attempt. The .job file was too large to attach without zipping.

4/9/21

Jason Johnson, Clark Hughes2

4/9/21

Learning to Salsa

Jason, That's a good idea (creating a youtube video) as that's how so many folks want to

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Learning to Salsa

Jason, That's a good idea (creating a youtube video) as that's how so many folks want to

4/9/21

Michael Lord, … Clark Hughes6

2/9/21

Generic Input Data

Olufemi, I don't believe I understand what you are asking. Can you please clarify your question?

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Generic Input Data

Olufemi, I don't believe I understand what you are asking. Can you please clarify your question?

2/9/21

Vladimir Bulatović, Clark Hughes3

1/25/21

free adjustment

Thanks Clark, especially for fast reply. Vladimir On Sunday, January 24, 2021 at 2:46:50 PM UTC+1

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free adjustment

Thanks Clark, especially for fast reply. Vladimir On Sunday, January 24, 2021 at 2:46:50 PM UTC+1

1/25/21

Eugene Ballance, Corwin Salsa13

6/21/20

3D Geodetic Least Squares Adjustment Programs

So glad to have SALSA to compare my Octave results. Found one major blunder (6 DOA!) in one the 1886

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3D Geodetic Least Squares Adjustment Programs

So glad to have SALSA to compare my Octave results. Found one major blunder (6 DOA!) in one the 1886

6/21/20

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