Let logarithimc plots accept negative values about gmt HOT 3 OPEN

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from gmt.

Would you be able to provide an actual example where this is used? If we were to add the transformation y = sign(x)*log10(abs(x)), I suppose x = 0 should give y = 0?

from gmt.

What I want is something like the Symlog plots in Matplotlib.
For example: https://matplotlib.org/stable/gallery/scales/symlog_demo.html
They actually did something tricky that making the values near zero display linearlly.

I wish such a function could work in GMT.

Currently, what I've done is:
I got X for x and A for y.
`
#positive and negative values (but reversed) in one plot
region=[-10,10,-5, 5] # for 10^-5 ~10^5
fig.shift_origin(yshift=1.4)
fig.basemap(region=region,projection='X2.8/1.4', frame=['x20f10g100', 'y1+l"A"', 'Wne'])
for i in range(0,len(A)):
if A[i]*1.44 > 0:
fig.plot(x=X[i], y=np.log10(A[i]), pen='0.1', fill=color[i], style='c0.1')

fig.shift_origin(yshift=-1.4)
fig.basemap(region=region,projection='X2.8/-1.4', frame=['x20f10g100+l"A"', 'y1', 'WSe'])
for i in range(0,len(A)):
if A[i] < 0:
fig.plot(x=X[i], y=np.log10(abs(A[i])), pen='0.1', fill=color[i], style='c0.1')
`

After that I just modified the figure to change the labels on y-axis to 10^-510^5 & -10^-5-10^5 manually

from gmt.