Working in CFD, I often have to create contours plots starting from rough data in a text file generated by in house codes. This can be easily accomplished using gnuplot. Here you can see a simple example of what you can do. Being an openSUSE user, I will explain how to install gnuplot on this distribution, but the instructions to generate contours plots are absolutely general. The installation of gnuplot on openSUSE 10.3 is straightforward. Just use the 1-click install link available here, and follow the procedure shown by the installer. Gnuplot requires the data to be saved in a text file organized in one of the two following ways:…