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I will create dtm, dem, digital terrain model, elevation contour survey
Brad James
About this gig
Welcome To My Gig
An accurate digital terrain model or digital elevation model, I create DTM, DEM, and elevation surveys from survey data, drone photogrammetry, or LiDAR point clouds. My terrain mapping deliverables are precise, properly classified, and ready for engineering, drainage, or earthwork design.
What I offer:
- Digital terrain model (DTM) from point cloud or survey data
- Digital elevation model (DEM) generation and processing
- Elevation survey and terrain mapping for site analysis
- Contour extraction, slope analysis, and cut/fill calculations
- Delivery in DWG, DEM/TIFF, XYZ, or GIS-ready formats
I work with civil engineers, GIS analysts, land developers, and construction firms who need reliable terrain data for design and planning decisions. Every DTM/DEM is cleaned, filtered, and validated against your source data before delivery.
Send me your raw LiDAR, drone photogrammetry, or survey point data and I will process it into an accurate digital terrain or elevation model.
Message me before ordering for large datasets so I can confirm turnaround and pricing.
Service verification and delivery style preference
Fiverr does not screen freelancers in this category. Please verify qualifications and discuss requirements with the freelancer before ordering, including any preferences regarding the use of AI tools.
Get to know Brad James
Brad James
DTM, DEM, Elevation, Terrain Mapping
- FromUnited States
- Member sinceSep 2026
Languages
English
Professional land surveyor and CAD drafter specializing in topographic survey, mapping, and terrain modeling. I convert raw land survey, property survey, boundary survey, and site survey data into accurate topographic maps, contour plans, and digital terrain models (DTM/DEM). Skilled in AutoCAD Civil 3D, Global Mapper, and survey data processing from GPS, Total Station, and drone/LiDAR datasets. I help engineers, architects, and developers turn field data into clean, ready to use survey drawings and elevation reports fast and to industry standard.
FAQ
What raw data do you need from me to create a DTM or DEM
Any of the following works: LiDAR point cloud (LAS/LAZ), drone photogrammetry point cloud, Total Station/GPS survey points (CSV/TXT with X, Y, Z), or an existing contour file (DWG/DXF). The denser and more accurate your source data, the more precise the final terrain model.
What's the difference between a DTM and a DEM, and which one do I need?
A DTM (Digital Terrain Model) represents the bare earth surface with features like buildings and vegetation removed used for engineering, drainage, and earthwork design. A DEM (Digital Elevation Model) is a broader elevation surface, often including surface features used for general elevation
What file formats will I receive?
Standard deliverables include DWG/DXF (contours + TIN surface), XYZ/CSV (elevation points), GeoTIFF or ASCII grid (raster DEM), and a PDF preview. I can also match a specific format your software (Civil 3D, ArcGIS, QGIS, Global Mapper) requires
Can you calculate cut/fill volumes or slope analysis from the terrain model?
Yes. Once the DTM/DEM is built, I can generate slope maps, cut/fill volume calculations, and elevation profiles as an add on. Mention this in your order requirements so I can scope the extra time accurately.
How long does it take and what affects the turnaround?
Small to medium sites (a few hundred points/small point cloud) typically take 1–2 days. Large LiDAR datasets, drone photogrammetry with heavy vegetation, or projects needing cut/fill and slope analysis take longer.
