fix app

app.py

@@ -15,7 +15,11 @@ import panel as pn
 from holoviews.streams import RangeXY
 from numba import jit
 
-pn.extension("mathjax")
+pn.extension("mathjax", loading_indicator=True, defer_load=True, nthreads=3)
+
+CMAP_CSS = (
+    "div, div:hover {background: var(--panel-surface-color); color: current}" if pn.config.theme == "dark" else ""
+)
 
 DEFAULT_COLOR_MAP = [
     "#0b2f4c",  # Deep blue
@@ -74,9 +78,7 @@ def create_fractal(min_x, max_x, min_y, max_y, image, iters):
 def get_fractal(x_range, y_range, iters=200, cmap="set1", width=1200, height=1200):
     (x0, x1), (y0, y1) = x_range, y_range
     image = np.zeros((width, height), dtype=np.uint8)
-    return hv.Image(
-        create_fractal(x0, x1, -y1, -y0, image, iters), bounds=(x0, y0, x1, y1), rtol=1e-9
-    ).opts(
+    return hv.Image(create_fractal(x0, x1, -y1, -y0, image, iters), bounds=(x0, y0, x1, y1), rtol=1e-9).opts(
         colorbar=True,
         cmap=cmap,
         xlabel="Real",
@@ -115,7 +117,7 @@ cmap = pn.widgets.ColorMap(
     swatch_width=100,
     sizing_mode="stretch_width",
     name="Color Map",
-    stylesheets=["div, div:hover {background: var(--panel-surface-color); color: current}"],
+    stylesheets=[],
 )
 dmap = hv.DynamicMap(
     pn.bind(

examples/01_getting_started.py

@@ -1,42 +0,0 @@
-# See also https://github.com/cds-astro/ipyaladin/blob/master/examples/01_Getting_Started.ipynb
-"""# 🛸 Getting Started
-
-Displays an interactive sky view of the
-[Mars Viking MDIM21 survey](https://alasky.u-strasbg.fr/Planets/Mars_Viking_MDIM21/).
-
-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
-
-pn.extension("ipywidgets", sizing_mode="stretch_width")
-
-aladin = Aladin(
-    target="159.2135528 -58.6241989",
-    survey="https://alasky.u-strasbg.fr/Planets/Mars_Viking_MDIM21",
-    fov=10,
-    height=800,
-)
-
-panel = pn.panel(aladin, height=800)
-
-pn.template.FastListTemplate(
-    site="ipyaladin and Panel",
-    site_url="./",
-    title="01 Getting Started",
-    sidebar=[
-        pn.pane.PNG(
-            "https://avatars.githubusercontent.com/u/26145382?s=200&v=4",
-            link_url="https://cds.unistra.fr/",
-        ),
-        __doc__,
-    ],
-    main=[panel],
-    accent="#296bb5",
-    main_layout=None,
-).servable()

examples/06_linked_widgets.py

@@ -1,57 +0,0 @@
-"""# 🛸 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()

examples/07_on_click_callback.py

@@ -1,93 +0,0 @@
-"""# 🛸 On Click Callback
-
-Once all cells are executed, click anywhere to get the closest star name. Be patient and the associated photometric points appear after a few seconds.
-
-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
-import requests
-from ipyaladin import Aladin
-from ipywidgets import Layout
-
-pn.extension("ipywidgets", sizing_mode="stretch_width")
-
-LoadingIndicator = "Loading..."
-
-aladin = Aladin(
-    layout=Layout(width="100%"),
-    height=800,
-    target="M 36",
-    fov=0.3,
-    show_fullscreen_control=False,
-)
-info = pn.pane.HTML("<h2>Click the widget</h2>")
-image = pn.pane.PNG(embed=True, sizing_mode="fixed")
-box = pn.Column(aladin, info, image)
-
-
-def process_result(data: dict) -> None:
-    """Process the result of a click event on the Aladin widget.
-
-    Parameters
-    ----------
-    data : dict
-        The data returned by the click event.
-    """
-    box.loading = True
-
-    info.value = ""
-    ra = data["ra"]
-    dec = data["dec"]
-    query = (
-        f"SELECT TOP 1 main_id, ra, dec, DISTANCE(POINT('ICRS', {ra}, {dec}), "
-        f"POINT('ICRS', ra, dec)) as d FROM basic "
-        f"WHERE CONTAINS(POINT('ICRS', ra, dec), CIRCLE('ICRS', {ra}, {dec}, {aladin.fov.deg / 10}))=1 "
-        "ORDER BY d ASC"
-    )
-
-    r = requests.get(
-        "http://simbad.u-strasbg.fr/simbad/sim-tap/sync",
-        params={
-            "query": query,
-            "request": "doQuery",
-            "lang": "adql",
-            "format": "json",
-            "phase": "run",
-        },
-    )
-    obj_name = ""
-    obj_coo = None
-    obj_data = r.json()["data"]
-    if len(obj_data) == 0:
-        return
-
-    obj_name = obj_data[0][0]
-    obj_coo = [obj_data[0][1], obj_data[0][2]]
-
-    info.object = f"<h2>{obj_name}</h2><br><br>"
-    image.object = f"https://cdsportal.u-strasbg.fr/cgi-bin/PhotVizPreview/plot?ra={obj_coo[0]}&dec={obj_coo[1]}&radius_arcsec=5&w=200&h=150&point_size=4"
-    box.loading = False
-
-
-aladin.set_listener("click", process_result)
-
-pn.template.FastListTemplate(
-    site="ipyaladin and Panel",
-    site_url="./",
-    title="On Click Callback",
-    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()