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The OTF integrates features and elevations into a single-layered, polygon-based representation using Irregular Triangulated Integrated Network (ITIN). OTF data can be created via GOTS (Government off-the-shelf) and COTS (Commercial off-the-shelf) toolsets and from traditional GIS datasets, as supported within the toolsets. This file format contains four types of files, a database header file (.dhf), an OTF file (.otf), three network database files (.nw), and a single elevation map file (elevation_map). The Objective Terrain Format (OTF) is the runtime representation of the synthetic natural environment (SNE) for the US Army’s One Semi-Automated Forces (OneSAF) simulation software. Global Mapper’s OTF Reader Module is used by military personnel for mapping simulation exercises.
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