Combining Log and Linear Axis

I saw release 2.4.0 and this particular issue was of interest to me,

#7217 [component: bokehjs] Including both log and linear axis types not working

However I don’t get the expected result.

image582×622 19 KB

This is the test code,

from bokeh.layouts import layout, column
from bokeh.models import LinearAxis, Range1d
from bokeh.plotting import figure
from bokeh.io import show

source = {"t": [0,  1,   2,    3],
          "i": [1, 10, 100, 1000],
          "v": [2, 20, 200, 2000]
}

f = figure(y_range=(0.1, 10000), x_range=(0, 5), y_axis_type="log")

log_line = f.line(x="t", y="i", line_width=2, source=source)

f.extra_y_ranges['Second Axis'] = Range1d(start=0, end=5000)
axis = LinearAxis(y_range_name='Second Axis', axis_label='Second Axis')
f.add_layout(axis, 'right')

lin_line = f.line(x="t", y="v", line_width=2, source=source, y_range_name="Second Axis", color="red")

doc_layout = layout()
doc_layout.children.append(column(f))
show(doc_layout)

@Martin_Guthrie Always advised to follow through to the actual PR that closes and issue, since that will have whatever the eventual solution was (as opposed to the issue, that just has whatever was initially reported and may not represent the final outcome).

in particular there is a complete Python example added in that PR, that demonstrates how you will also need to add the appropriate additional scales to the plot:

Indeed, I missed the example.

BTW, I put a bounty on that issue, and I would love to see someone from the team collect!

The work was performed by @mateusz I will be sure to pass the link along to him!

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