Example 30: Line plot with two x axes

Adding an extra x axis to a line plot

tol = cf.RTOL(1e-5)

fl = cf.read(f"cfplot_data/ggap.nc")
f = fl[1]

u = f.collapse("X: mean")
u1 = u.subspace(Y=cf.isclose(-61.12099075))
u2 = u.subspace(Y=cf.isclose(0.56074494))

g = fl[0]
t = g.collapse("X: mean")
t1 = t.subspace(Y=cf.isclose(-61.12099075))
t2 = t.subspace(Y=cf.isclose(0.56074494))

cfp.gopen()
cfp.gset(-30, 30, 1000, 0)
cfp.lineplot(u1, color="r")
cfp.lineplot(u2, color="r")
cfp.gset(190, 300, 1000, 0, twiny=True)
cfp.lineplot(t1, color="b")
cfp.lineplot(t2, color="b")
cfp.gclose()