Land XML

Several companies teamed up to create a method for exchanging project information across different software packages, and LandXML is the result. LandXML is a generic, text-based file format used to...

Digital Terrain Model

Digital Terrain Model represents the bare ground surface without any objects like plants and buildings. Source wikipedia: http://en.wikipedia.org/wiki/Digital_elevation_model 

link to Terramodel

Terramodel

Terramodel Survey Office SoftwareThe Trimble Terramodel™ software, was a software package for the Surveyor, Civil Engineer and Contractor, who requires a CAD and Design package with integrated...