SurveyMarkup
Run the QA engine

Windows app · Version 0.1.0

ControlAdjust.
Your network, with the working in view.

Least-squares adjustment for total-station control networks. Bring together your field files, review the results and write adjusted coordinates back to a copy of your control CSV.

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64-bit Windows 10 (1809 or later) or 11 · Offline · About 80 MB installed

An advisory QA aid. The surveyor decides; professional decisions and sign-off remain with the registered surveyor.

ControlAdjust Summary tab for a synthetic control network, showing the error factor, observation counts and diagnostic checks.
Synthetic example network. All screenshots on this page use fictional survey data.

What it does

From field observations to adjusted control.

Bring the days together

Add any number of Trimble JobXML (.jxl) and 12d field files (.fld), across files and days. Repeated shots are counted once.

Adjust the network

Least-squares adjustment of resections, traverses, rounds and both faces, STAR*NET-style in 3D or 2D. Weights come from the instrument record.

Find what needs attention

A chi-square global test shows the error factor. The Baarda w-test highlights suspects above 3.29, with plain advice such as “set this held mark Free first”.

Read the uncertainty

Review 95% error ellipses and ICSM SP1 PU/RU, alongside a scale diagnostic and a face-1/face-2 distance check.

Check the field reconstruction

A self-check recomputes Trimble Access’s own field coordinates from raw JobXML observations. In Tim’s testing it reproduced 5,748 field shots to 0.0001 mm. This describes that test set, not survey accuracy.

Keep the control format

Export adjusted coordinates into a copy of your control CSV in exactly its format. Only adjusted values change and new marks are appended. Input files are never overwritten. Save a text report alongside it.

Six steps

A straightforward workflow.

  1. 01

    Add field files

    Add your JobXML and 12d field files, including multiple days.

  2. 02

    Open control CSV

    Start with the control file you already use.

  3. 03

    Tick codes

    Choose the codes to include as new marks.

  4. 04

    Check roles

    Set each mark to Fixed, Fix EN, Fix H, Free or Weighted.

  5. 05

    Adjust

    Press ADJUST, then work through the diagnostics and advice.

  6. 06

    Export

    Write a new control CSV and save the text report.

Inside the app

Inspect each part of the adjustment.

Open any screenshot to see the synthetic example at full size.

ControlAdjust Points tab for a synthetic network, listing control marks, coordinate fields and adjustment roles.
Review point roles. Synthetic example network.
ControlAdjust Plot tab showing a synthetic control network and its error ellipses.
See the network. Synthetic example network.
ControlAdjust Observations tab with synthetic directions, distances, residuals and review indicators.
Follow the observations. Synthetic example network.
ControlAdjust Setups tab showing station setup information for a synthetic example network.
Inspect the setups. Synthetic example network.
ControlAdjust text report for a synthetic example network, showing adjustment diagnostics and results.
Keep the report. Synthetic example network.

Requirements

Made for a Windows field-to-office setup.

  • 64-bit Windows 10, version 1809 or later, or Windows 11.
  • About 80 MB installed.
  • Per-user installation; no administrator rights required.
  • The installed program and its licence check work offline. Internet is needed to purchase and download.

Read before use

Know the limits.

MGA2020 projection jobs are implemented, but have not yet been checked against a real MGA JobXML export.

No GNSS vectors or level runs. Review the inputs, mark roles, weights and output before using the results in your work.

ControlAdjust is an advisory QA aid. It does not replace registered surveyor judgement.

Questions

Before you adjust.

Q01 Is this a browser tool?
No. ControlAdjust 0.1.0 is a Windows desktop application. Licence holders download the ZIP from their account and use the Windows installer. The installed program runs offline on your PC.
Q02 Can I combine several days?
Yes. Add any number of supported JobXML and 12d field files at once. Repeated shots are counted once.
Q03 Will it change my source files?
No. Input files are never overwritten. Adjusted coordinates are written to a copy of the control CSV, preserving its format. Only adjusted values change; new marks are appended.
Q04 What does the field self-check tell me?
It compares coordinates recomputed from raw JobXML observations with Trimble Access’s recorded field coordinates. It is a reconstruction check, not a measure of the accuracy of a survey.
Q05 Can I use MGA2020 jobs?
MGA2020 projection jobs are implemented, but a real MGA JobXML export has not yet been used to check them. Treat that compatibility as unconfirmed.

Start with the working.

ControlAdjust uses an offline licence key. Get in touch about the tool.

Coming soon. Register your interest in ControlAdjust.

Register interest

Already have a licence? Your licences and downloads