#!/usr/bin/env python
# coding: utf-8

# In[1]:


from lets_plot import *


# In[2]:


LetsPlot.setup_html()


# In[3]:


def_min_exp, def_max_exp = -7, 7
values = [3.14 * 10**d for d in range(def_min_exp, def_max_exp)]


# In[4]:


def plot(f=None):
    t = layer_tooltips().line("@v")
    if f is not None:
        t = t.format("@v", f)
    return ggplot({'v': values}, aes(y='v')) + \
        geom_point(x=0, tooltips=t) + \
        geom_text(aes(label='v'), x=1, label_format=f) + \
        scale_x_continuous(limits=[-.5, 2]) + \
        scale_y_log10(limits=[10**def_min_exp, 10**def_max_exp], format=f) + \
        ggsize(400, 600) + \
        ggtitle("Default format" if f is None else 'format="{0}"'.format(f))


# ## Without `theme()`

# In[5]:


plot().show()
plot("g").show()


# ## With `theme(exponent_format=('pow', -2, 3))`

# In[6]:


(plot() + theme(exponent_format=('pow', -2, 3))).show()
(plot("g") + theme(exponent_format=('pow', -2, 3))).show()