CSV to DXF survey linework review workflow
SurveyMarkup turns coded survey CSV into reviewable DXF handoff files, with an advisory check on feature codes, coordinate columns and geometry along the way. It is a survey-specific review and handoff aid, not a generic bulk converter.
Advisory and unverified — not for survey deliverables. A registered surveyor must confirm any output before it is relied on.
What SurveyMarkup can flag or organise
- Rows with missing or unexpected feature codes
- Coordinate columns that look inconsistent
- CRS metadata mismatches before export
What it cannot prove or certify
- It does not certify the converted DXF
- It does not verify coordinate correctness
- It does not guarantee a lossless conversion
Start from a coded CSV
Bring in a CSV with coordinate columns and feature codes. SurveyMarkup maps codes to structured linework so the resulting DXF is organised, not flat.
- Coordinate and code columns recognised
- Feature-code to layer mapping
- Structured DXF output for review
Advisory QA on the way through
Missing codes, odd geometry or inconsistent CRS metadata are flagged as review prompts before you export.
Limitations
This is not a guaranteed conversion or a certification step. Outputs are unverified working files that need a reviewer's eye before they enter CAD.
A CSV with easting/northing and a feature-code column is turned into reviewable DXF.
What SurveyMarkup surfaces
- How each column was mapped (coordinates and code)
- Rows with missing or unexpected codes
- A CRS note carried through to the export
Reviewer's call: The reviewer checks the mapping and codes before importing the DXF downstream. The conversion is advisory and unverified, not guaranteed.
Frequently asked questions
What columns does the CSV need?
Coordinate columns and a feature-code column are the core inputs. The workspace shows how it has mapped them so you can review the result.
Can I import the DXF into 12d?
The DXF is a standard handoff file for review. See the 12d-friendly export page for how SurveyMarkup positions itself alongside 12d — it is not a 12d plugin.
Is the conversion guaranteed?
No. Treat the output as an unverified working file and confirm it before professional use.
Related survey workflows
Related next steps
Advisory and unverified — not for survey deliverables. A registered surveyor must confirm any output before it is relied on.
Ready to review with SurveyMarkup?
Every output stays advisory and unverified — not for survey deliverables; registered surveyor confirmation required.