Georeferenced sewer network database
I turned a CAD file of a Salvador sewer network into a georeferenced database of more than 5,000 manholes, ready for analysis in QGIS.
- My role
- Geospatial data extraction and cleanup
- When
- 2026
- Area
- Data & maps
The source DXF had text labels disconnected from their geometry. I matched each identifier to its point, color-coded the reliability of every match and standardized the output in SIRGAS 2000 / UTM zone 24S (EPSG:31984).
The delivery included a spreadsheet for review and a GIS-ready GeoPackage with more than 5,000 records.
Tools QGIS, DXF, GeoPackage, Planilhas