3D DEM Viewer by Oto Valek ----------------------------------------- An interactive textured DEM (Digital Elevation Model) viewer modified for the needs of CZFree.Net (http://czfree.net). Shows a view of Prague and nodes of the network, both active and planned. Requirements: ------------- GL - The OpenGL Graphic System Library GLU - The OpenGL Graphic System Utility Library GLUT - The OpenGL Utility Toolkit You may run the application on any OS supported by these libraries, however, this README describes only the instalation on Linux On Windows(TM) you can use a binary release (dem-windows-bin.zip). Where to get the libraries: --------------------------- On Debian Linux 3.0 in these packages: glutg3 and glutg3-dev xlibmesa3 and xlibmesa-dev On RedHat Linux 7.1 in these packages: Mesa-3.4-13.i386.rpm and Mesa-devel-3.4-13.i386.rpm On other distributions, the package names should be similar. You may get them from the following websites too: http://www.opengl.org http://www.mesa3d.org To ensure optimal performance, try to get HW accelerated GL library from the manufacturer of your graphic card Compiling and installing: ------------------------- unpack the source (dem-linux-src.tar.gz) unpack at least one of data sets (dem-data-*.zip) to the same directory run 'make' run 'make install' if you wish to have the application installed in /usr/local makefile uses 'nconvert' application (i386 binary) to convert textures from JPEG to RAW format, if it won't work for you, you'll need to convert them yourself with a graphic editor makefile also makes data/czfree directory world-writable, so that any user may update nodes.txt from the internet Uninstaling: ------------ run 'make uninstall' to remove installed files or delete /usr/local/bin/dem and /usr/local/share/dem Invoking: --------- use czfree16, czfree32, czfree64 or czfree128 commands or 'dem deffile.def' syntax the syntax of the deffile is currently not documented Controls: --------- Use arrows, A, Z, Home, End, Del, PgDn, <, > (+ Shift & Alt) to move around Use left or right mouse button to invoke a pop up menu Use S, C, D, F, W, Q, Esc for faster access to some of the menu items