• TopDM utilizes an integrated database system
well-suited to managing very large DTM
projects, up to nation-wide DTMs
• Efficient hybrid DTM data structure and flexible,
advanced interpolation guarantees rigorous
consideration of break-lines and qualified
data filtering
• Numerous DTM applications are covered, such
as contouring, hill-shading, profiling, volume
calculations, or slope analysis, and many more
• Work with points from LiDAR, photogrammetry
or other sources
• Automatically filter airborne laser scanning to
classify raw point clouds into terrain and offterrain
points and effectively extract true ground
points for further DTM processing