Sdts

SDTS++ is a C++ toolkit that programmers can use to write applications that can read or write SDTS datasets. Application developers can use SDTS++ library classes to work with the logical structure of these datasets without having to worry about the physical details of each dataset. What... Platforms: *nix

The free AvisMap Viewer opens most GIS/CAD and raster image file types and most ArcView, ArcExplorer, and MapInfo projects. Besides just opening and viewing files, the Viewer supports an extensive list of features including visual layer properties control, legend control, thematic mapping,... Platforms: Windows

The free AvisMap Viewer opens most GIS/CAD and raster image file types and most ArcView, ArcExplorer, and MapInfo projects. Besides just opening and viewing files, the Viewer supports an extensive list of features including visual layer properties control, legend control, thematic mapping,... Platforms: Windows

This project provides a library written in Python for reading and eventually writing ISO8211 files. ISO8211 is a format used for various GIS systems (geographic data), including SDTS, the format used by the US Geological Survey. Platforms: Windows, Mac, Linux

Use map data to plan hikes or explore new areas. Includes 3D maps of terrain rendered in real-time; trace trails across the terrain and get height verses distance profiles; tile together adjacent maps to create seamless map areas. Reads USGS SDTS files. Platforms: Windows, Mac, BSD, Linux