libmplot is a C api which offers plotting functionality. With this library, you can write source code which using drawing primitives such as lines, circles, and so forth, and have the library turn this into a raster. libmplot was developed by Michael Still, and can be downloaded from http://www.stillhq.com. It was developed specifically for the GDMS project, however, is available in a separate library form. Follow these steps to install libmplot tar -xvzf libmplot_0_5_4.tgz cd libmplot-0.5.4 ./configure make make install If you have installed libmplot on an architecture / operating system combination which supports dynamic libraries, then you will need to run the ldconfig command or equivalent.