View, merge, import and export a wide variety of vector raster and elevation GIS data sets

Global Mapper is more than just a utility; it has built in functionality for distance and area calculations, raster blending, feathering, spectral analysis and contrast adjustment, elevation querying, line of sight calculations, cut-and-fill volume calculations, as well as advanced capabilities like image rectification, contour generation from surface data, view shed analysis (including Fresnel) from surface data, terrain layer comparison (including differencing), and triangulation and gridding of 3D point data. Repetitive tasks can be accomplished using the built in scripting language or comprehensive batch conversion functionality.

 Main Features :

 Global Mapper supports viewing of dozens of the most common data formats:

             DLG-O  , DRG ,  DOQ,   DEM ,  DGN  ,  DTED  ,DWG,   DXF

            SDTS DLG  , SDTS DEM , ECW ,MrSID ESRI Shapefiles

            E00 ,  JPEG2000 ,  CADRG/CIB ,  GeoTIFF

            KML/KMZ ,Lidar LAS , Arc Grid,   Tiger/Line

and many more…..

Provides direct access to the complete TerraServer-USA satellite imagery and topographic map archive for the entire US free-of-charge within the application!

Provides easy, direct access to WMS data sources, including built-in access to the complete 30-m NED database, the 3-arc second world SRTM database, and color global imagery free-of-charge within the application!

 Supports true 3D viewing of loaded elevation data including draping of any loaded imagery and vector data over the 3D surface.

 Crop, reproject, and merge any combination of raster data and elevation data, including DRGs. You can also crop data to an area feature.

 DIGITIZING SUPPORT! You can digitize new vector (area, line, and point) features by drawing them with the mouse. You can also edit existing vector features. Newly created and editing features can be saved to any of the supported export formats. In addition, shapes like rectangles, circles, ellipses, arcs, and concentric range rings. can be easily drawn as well.

 GPS SUPPORT! You can track a compatible GPS device connected to your computer's serial port or USB port in real-time over any loaded data. In addition, you can mark waypoints at the current GPS location and record a tracklog of where your GPS device has been while connected, all seamless with your loaded map data!

 EXPORT SUPPORT! You can export both vector, raster, and elevation data to a variety of formats (see below). You can merge any combination of data sets, regardless of source scale, type, and projection.

 IMAGE RECTIFICATION! You can graphically rectify (geo reference) any JPG, TIFF, or PNG image and save the results to a new fully geo referenced image. Vector data can also have a rectification process applied to it after loading to allow morphing vector data to fit other data sets.

 CONTOUR GENERATION! You can create contours for any combination of elevation data. You can also specify the contour interval to use. The generated contour data can then be exported to any of the supported vector export formats (see previous item for a list).

 Automatic triangulation and gridding of 3D point data sets, such as ASCII XYZ files. This allows you to convert a set of elevation samples into a fully gridded data set, which can then be used for contour generation, line of sight analysis, and view shed analysis, among other things. The data can also be exported to any of the supported elevation grid formats, such as USGS DEM.