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"""# 🛸 Linked Widgets
Displays 3 linked `Aladin` widgets. Try zoming or panning.
Powered by \
[ipyaladin](https://github.com/cds-astro/ipyaladin) and \
[Panel](https://panel.holoviz.org/index.html).
Check out the [**App Gallery**](./)
"""
import panel as pn
from ipyaladin import Aladin
from ipywidgets import Box, Layout, widgets
pn.extension("ipywidgets", sizing_mode="stretch_width")
cosmetic_options = {"show_projection_control": False, "show_fullscreen_control": False}
a = Aladin(layout=Layout(width="100%"), target="M 81", fov=0.3, **cosmetic_options)
b = Aladin(layout=Layout(width="100%"), survey="P/DSS2/red", **cosmetic_options)
c = Aladin(layout=Layout(width="100%"), survey="P/2MASS/color", **cosmetic_options)
# synchronize target between 3 widgets
widgets.jslink((a, "_target"), (b, "_target"))
widgets.jslink((b, "_target"), (c, "_target"))
# synchronize FoV (zoom level) between 3 widgets
widgets.jslink((a, "_fov"), (b, "_fov"))
widgets.jslink((b, "_fov"), (c, "_fov"))
items = [a, b, c]
box_layout = Layout(
display="flex",
flex_flow="column",
align_items="stretch",
border="solid",
width="100%",
)
box = Box(children=items, layout=box_layout)
pn.template.FastListTemplate(
site="ipyaladin and Panel",
site_url="./",
title="Linked Widgets",
sidebar=[
pn.pane.PNG(
"https://avatars.githubusercontent.com/u/26145382?s=200&v=4",
link_url="https://cds.unistra.fr/",
),
__doc__,
],
main=[box],
accent="#296bb5",
main_layout=None,
).servable()
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