I am sure that it can be done since I can achieve it through Octave and a borrowed Matlab script, but I do not see what is happening because the Octave pipes the data directly to Gnuplot.Ī more direct help/instructions would be appreciated, but I will be satisfied with the answers to the next two questions: Basically it should be something like skip the header, draw a matrix consisting of Ntraces X Sample values with image – but I just do not get it. I can read the number of traces and samples, but I do not know how to instruct Gnuplot to read this particular file and draw an image out of it.

The binary output is well documented and consists of a header and “rows” of data = each trace consist of the number of samples. I am investigating a way to use Gnuplot to show binary output files from the GPRMax2D ground penetrating radar simulator. Tags: binary, colormap, image, Matlab, matrix 1 as pdf created with plot and image and as pdf created with splot and pm3d map.

Note that in principle a color map can also be created by the splot command: set pm3d mapīut if you create vector graphics with this command you will get a really big output file, because every single point will be drawn separately. plot 'color_map.bin' binary matrix with image The stored binary matrix can then be plotted by adding the binary indicator to the plot command.

In Matlab/Octave the binary matrix can be stored using this m-file. The format of this matrix has to be the following: Therefore the data has to be stored as a binary matrix. 3 A color map with a scaled x-axis ( code to produce this figure, data)Īnother way is to store the axes vectors together with the data.

Gnu octave scaling axes