ratio – Gnuplotting ./../../../index.html Create scientific plots using gnuplot Mon, 04 Jun 2012 13:16:00 +0000 en-US hourly 1 https://wordpress.org/?v=6.1.1 Fixed ratio plot ./../../../fixed-ratio-plot/index.html ./../../../fixed-ratio-plot/index.html#respond Tue, 30 Nov 2010 16:28:17 +0000 ./../../../index.html?p=440 For some plots it is nice to have exactly the same size for the given unit on both axes. In Fig.1 you could see the amplitude of a point source in a given space.

Wave field

Fig. 1 Image plot of a wave field given by the data file data (code to produce this figure)

The wave field of the point source is given by Green’s function:

G(\mathbf{x}-\mathbf{x}_\text{s},\omega) = \frac{1}{4\pi |\mathbf{x}-\mathbf{x}_\text{s}|} \; e^{i \frac{\omega}{c} |\mathbf{x}-\mathbf{x}_\text{s}|}

To apply the same sizes at both axes the set ratio command is the one to look after. A value of -1 will ensure that we will get the same sizes.

set ratio -1
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