Virtual
Terrain Builder: a
tool for viewing and processing many kinds of geospatial data.- Load any number of elevation layers, combine or resample them.
- Import elevation grids from DEM, SDTS, MicroDEM, GTOPO30, SRTM, DTED, NetCDF, PNG, TIF, GeoTIFF, PGM, Surfer GRD, TerraGen, raw data, ArcInfo ASCII/Binary, SRTM HGT, and many other formats
- Export elevation grids to ArcInfo ASCII Grid, GeoTIFF, TerraGen, BMP, STM, MSI Planet, VRML ElevationGrid, RAW, ChunkLOD (.chu), PNG 16-bit, 3TX, and more.
- Import TIN data from DXF, ESRI .adf, Aquveo GMS, Stanford PLY.
- Export TIN data to GMS, Collada .dae, VRML .wrl, OBJ, and PLY.
- Native format is BT for grids and ITF for TINs, for use by the vtlib Library and Enviro runtime.
- Supports undersea data, and conversion of data between coordinate systems, such as reprojecting and merging of DEM files across a UTM boundary.
- Reads road centerline vectors from OpenStreetMap, USGS DLG, ESRI SHP, NTF and other GIS formats.
- Does cleanup processing on the road network topology.
- Allows the user to define intersection behavior and road attributes including number of lanes and traffic direction.
- Writes to native RMF for use by the vtlib Library and Enviro runtime.
- Imports from many GIS formats, reads and writes native VTST files.
- Select, move and delete buildings, reproject and offset.
- Edit building attributes (shape, number of stories, color, etc.)
- Imports land-use and vegetation-coverage data from USGS LULC and ESRI SHP files.
- Imports species lists and vegetation zones (biotypes) from text/XML files.
- Exploits all of the above to do automated placement of vegetation and export to VF files.
- Imports multiple layer types from compound file formats - TIGER (roads, hydrography), NTF (roads, structures), OSM (roads, structures, power lines)
- You can import several image formats for viewing in conjunction with other layers, and process them into Tilesets for efficient Enviro visualization of large imagery (up to hundreds of GB).