adding custom abc and multiple titles #294

[pratiman-91]

Description

Currently, abc does not consider the custom text. A provision can be made to incorporate that. Multiple titles can be incorporated in the format. I know there are ways that the functions may not be even needed. However, it is for the sake of consistency and making the user end code simple.

Modified Code for abc

import proplot as pplt
fig = pplt.figure(space=0, refwidth='10em')
axs = fig.subplots(nrows=3, ncols=2)
axs.format(
    abc=('A','B','1','2','a','b'), abcloc='ul',
    xticks='null', yticks='null', facecolor='gray5',
    xlabel='x axis', ylabel='y axis',
)

Output

Modified Code title

import proplot as pplt
fig = pplt.figure(space=0, refwidth='10em')
axs = fig.subplots(nrows=3, ncols=2)
axs.format(
    urtitle=('Title 1', 'Title 2', 'Test 1', 'Test2', 'Exp1', 'Exp2'),
    xticks='null', yticks='null', facecolor='gray5',
    xlabel='x axis', ylabel='y axis',
)

Output

[lukelbd]

Looks good to me! Like the implementation, very simple / minimal. Thanks for the help.

[lukelbd]

Just cleaned up the input validation (e.g. for case where 3 titles are passed but figure contains only 2 axes), internals, and format docstring in a quick commit (fe792114).