Roadnav is an open source street navigation solution capable of running on a variety of operating systems. It can obtain your position from a GPS unit, plot a map of your area, and provide verbal directions to locations in the USA.
NOTE: Use Fltk_Contour insted this code! FMesh is a simply scientific data visualization tool based on OpenGL. FMesh can generate 2D and 3D graph of contour and color maps for any (x,y,z) scattered data set, many other options are included.
NrdbView is GIS (Geographic Information System) for displaying and editing of spatial data stored in .shp shapefiles( M, Z and Multipatch). NRDB View Use FreeImage lib to display georeferenced images. Actually MFC c++ but working on WxWidget migrating.
KGIS it is a GIS aplication for KDE. (Geografic Information System) With a GIS aplication, it is possible to manipulate maps. The objective of KGIS is be the base for the development of GIS applications in KDE.