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$
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I will do precise map digitizing, georeferencing, and spatial data creation
Saratha
Level 1
About this gig
Looking to convert paper maps, PDFs, or CAD files into clean, structured GIS data?
I provide high-precision georeferencing, map digitizing, contour extraction, and file conversions using ArcGIS Pro, QGIS, and Civil3D with 100% clean topology (no gaps or overlaps).
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Services Included
- Georeferencing: Aligning PDFs, scanned maps, and aerial rasters to real-world coordinates.
- Precision Digitizing: Vectorizing parcels, land use, roads, and utilities (Points, Lines, Polygons).
- Contour Extraction: Digitizing elevation lines with accurate value attributes from topo maps.
- CAD & Data Conversion: .dwg / .dxf to Shapefile (.shp), Geodatabase (.gdb), or KML.
Why Work With Me?
- Zero Topology Errors: Clean, error-free geometry guaranteed.
- Format Flexibility: Outputs ready for GIS, CAD, or web maps.
- Fast Turnaround: High accuracy with quick delivery.
- 100% Customer satisfaction.
Please message me before placing an order to discuss your source files and coordinate requirements!
Get to know Saratha
Saratha
Gis Analyst
Level 1
- FromSri Lanka
- Member sinceDec 2019
- Avg. response time1 hour
- Last delivery3 days
Languages
English
I am a remote sensing/GIS specialist who has a solid academic background on surveying and geomatics. I use ArcGIS, QGIS, ArcGIS Pro, Google Earth Engine, and remote sensing data to create valid maps and understandable spatial analysis to be applied in the real world.
I have worked on GIS mapping, spatial and geostatistical analysis, land use and land cover mapping, site suitability analysis,remote sensing works, network and accessibility analysis and remote sensing image processing. I emphasize on effective outcomes, effective communication, and quality academic and professional work.
My Portfolio
FAQ
What source files do I need to provide to start?
You can provide scanned paper maps, PDF drawings, aerial/drone rasters, JPEG/PNG images, or AutoCAD files (.dwg / .dxf). If you have specific coordinates, ground control points (GCPs), or reference locations, please share those as well to ensure maximum spatial accuracy.
Can you extract contour lines with Z-value elevation attributes from scanned topo maps?
Yes! I digitize contour lines directly from paper or PDF topographic maps and assign precise Z-value (elevation) attributes to each line. The output is structured for 3D terrain modeling, DEM creation, and CAD/GIS analysis in ArcGIS or QGIS.
Which coordinate reference systems (CRS) and projection systems do you support?
I support all global, regional, and local projection systems, including WGS84, UTM zones, State Plane, and local state datums. Simply specify your required coordinate reference system (CRS), and your shapefile or geodatabase will be spatially aligned to your exact location.
Can you convert AutoCAD drawings (.DWG / .DXF) into GIS Shapefiles or Geodatabases?
Absolutely. I specialize in CAD to GIS and GIS to CAD conversions. I convert CAD lines, layers, and polygons into structured GIS vector features with clean topology and fully populated attribute tables.
How do you guarantee vector quality and topology rules?
Every spatial dataset undergoes strict topological validation in ArcGIS Pro and QGIS. I inspect and clean the vector geometries to guarantee zero sliver polygons, zero overlapping lines, no dangles, and no unclosed gaps.
What deliverable formats will I receive with my order?
You can request your final files in Shapefile (.shp), File Geodatabase (.gdb), GeoPackage (.gpkg), KML/KMZ (Google Earth), GeoJSON, AutoCAD (.dwg), or High-Res PDF/PNG map layouts.
