Set hinge to zero in gallery example plot #408
Merged
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Set the hinge (white color) to zero in the gallery example plot for the global topo-free gravity disturbances.
At the beginnig of the scripts says: "The gravity disturbance is the observed gravity minus the normal gravity (boule.Ellipsoid.normal_gravity). The signal that is left is assumed to be due to the differences between the actual Earth and the reference ellipsoid." So, the value 0 has a special meaning.
But, in the figure the hinge (white color) of the CPT is around 100. I think that it should be in 0.
To fix it, I propose to force the hinge at 0 (+h0).