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Multiple plots in iframe renderer #3123

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Multiple plots in iframe renderer #3123

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4255f8a
Enable multiple plots per cell in iframe renderer
davidkyle210 Mar 12, 2021
bde5136
add explanation of multiplot iframe in doc string
davidkyle210 Mar 15, 2021
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20 changes: 17 additions & 3 deletions packages/python/plotly/plotly/io/_base_renderers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -524,7 +524,10 @@ class IFrameRenderer(MimetypeRenderer):
Note that the HTML files in `iframe_figures/` are numbered according to
the IPython cell execution count and so they will start being overwritten
each time the kernel is restarted. This directory may be deleted whenever
the kernel is restarted and it will be automatically recreated.
the kernel is restarted and it will be automatically recreated. If a cell
contains multiple plots, a second index is appended to the file name. For
example, figure_8_2.html would be the third figure in the eighth cell
executed.

mime type: 'text/html'
"""
Expand All @@ -545,6 +548,8 @@ def __init__(
self.animation_opts = animation_opts
self.include_plotlyjs = include_plotlyjs
self.html_directory = html_directory
self.last_focus_cell = None
self.last_focus_cell_output_ct = 1

def to_mimebundle(self, fig_dict):
from plotly.io import write_html
Expand Down Expand Up @@ -608,8 +613,17 @@ def to_mimebundle(self, fig_dict):
def build_filename(self):
ip = IPython.get_ipython() if IPython else None
cell_number = list(ip.history_manager.get_tail(1))[0][1] + 1 if ip else 0
filename = "{dirname}/figure_{cell_number}.html".format(
dirname=self.html_directory, cell_number=cell_number
if self.last_focus_cell == cell_number:
output_ct_suffix = f"_{self.last_focus_cell_output_ct}"
self.last_focus_cell_output_ct += 1
else:
self.last_focus_cell = cell_number
self.last_focus_cell_output_ct = 1
output_ct_suffix = ""
filename = "{dirname}/figure_{cell_number}{output_ct_suffix}.html".format(
dirname=self.html_directory,
cell_number=cell_number,
output_ct_suffix=output_ct_suffix,
)
return filename

Expand Down