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pyscript-python-html/pyscriptjs/examples/panel_deckgl.html
Philipp Rudiger 67115635db Cleaned up Panel examples
2022-04-20 13:18:09 +02:00

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="default">
<meta name="theme-color" content="#0072b5">
<meta name="name" content="Pyscript/Panel DeckGL Demo">
<title>Pyscript/Panel DeckGL Demo</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css" type="text/css" />
<link rel="stylesheet" href="https://unpkg.com/@holoviz/panel@0.13.0/dist/css/widgets.css" type="text/css" />
<link rel="stylesheet" href="https://unpkg.com/@holoviz/panel@0.13.0/dist/css/markdown.css" type="text/css" />
<link rel="stylesheet" href="https://unpkg.com/@holoviz/panel@0.13.0/dist/css/loading.css" type="text/css" />
<link rel="stylesheet" href="https://unpkg.com/@holoviz/panel@0.13.0/dist/css/dataframe.css" type="text/css" />
<script type="text/javascript" src="https://unpkg.com/h3-js@3.7.2/dist/h3-js.umd.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/deck.gl@8.6.7/dist.min.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/@deck.gl/json@8.6.7/dist.min.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/@loaders.gl/csv@3.1.7/dist/dist.min.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/@loaders.gl/json@3.1.7/dist/dist.min.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/@loaders.gl/3d-tiles@3.1.7/dist/dist.min.js"></script>
<script type="text/javascript" src="https://api.mapbox.com/mapbox-gl-js/v2.6.1/mapbox-gl.js"></script>
<script type="text/javascript" src="https://cdn.bokeh.org/bokeh/release/bokeh-2.4.2.js"></script>
<script type="text/javascript" src="https://cdn.bokeh.org/bokeh/release/bokeh-widgets-2.4.2.min.js"></script>
<script type="text/javascript" src="https://cdn.bokeh.org/bokeh/release/bokeh-tables-2.4.2.min.js"></script>
<script type="text/javascript" src="https://unpkg.com/@holoviz/panel@0.13.0/dist/panel.js"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/css/bootstrap.min.css">
<link rel="stylesheet" href="https://unpkg.com/@holoviz/panel@0.13.0/dist/bundled/bootstraptemplate/bootstrap.css">
<link rel="stylesheet" href="https://unpkg.com/@holoviz/panel@0.13.0/dist/bundled/defaulttheme/default.css">
<script src="https://cdn.jsdelivr.net/npm/jquery@3.5.1/dist/jquery.slim.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/js/bootstrap.bundle.min.js"></script>
<style>
#sidebar {
width: 400px;
}
</style>
<link rel="stylesheet" href="../build/pyscript.css" />
<script defer src="../build/pyscript.js"></script>
</head>
<body>
<py-env>
- bokeh
- numpy
- pandas
- panel==0.13.1a1
</py-env>
<div class="container-fluid d-flex flex-column vh-100 overflow-hidden" id="container">
<nav class="navbar navbar-expand-md navbar-dark sticky-top shadow" id="header" style="background-color: #0072b5;">
<button type="button" class="navbar-toggle collapsed" id="sidebarCollapse">
<span class="navbar-toggler-icon"></span>
</button>
<div class="app-header">
<a class="title" href="/" >&nbsp;Panel</a>
<span class="title">&nbsp;-</span>
<a class="title" href="" >&nbsp;Pyscript DeckGL NYC Taxi</a>
</div>
</nav>
<div class="row overflow-hidden" id="content">
<div class="sidenav" id="sidebar">
<ul class="nav flex-column">
<div class="bk-root" id="widgets" data-root-id="1021"></div>
<py-repl id="my-repl" auto-generate="true"> </py-repl>
</ul>
</div>
<div class="col mh-100 float-left" style="padding: 0;">
<div class="bk-root" id="plot" data-root-id="1008"></div>
</div>
</div>
</div>
<py-script>
import asyncio
import panel as pn
import param
import pandas as pd
from panel.io.pyodide import show
from pyodide.http import open_url
MAPBOX_KEY = "pk.eyJ1IjoicGFuZWxvcmciLCJhIjoiY2s1enA3ejhyMWhmZjNobjM1NXhtbWRrMyJ9.B_frQsAVepGIe-HiOJeqvQ"
class App(pn.viewable.Viewer):
data = param.DataFrame(precedence=-1)
view = param.DataFrame(precedence=-1)
arc_view = param.DataFrame(precedence=-1)
radius = param.Integer(default=50, bounds=(20, 1000))
elevation = param.Integer(default=10, bounds=(0, 50))
hour = param.Integer(default=0, bounds=(0, 23))
speed = param.Integer(default=1, bounds=(0, 10), precedence=-1)
play = param.Event(label='▷')
def __init__(self, **params):
self.deck_gl = None
super().__init__(**params)
self.deck_gl = pn.pane.DeckGL(
dict(self.spec),
mapbox_api_key=MAPBOX_KEY,
throttle={'click': 10},
sizing_mode='stretch_both',
margin=0
)
self.deck_gl.param.watch(self._update_arc_view, 'click_state')
self._playing = False
self._cb = pn.state.add_periodic_callback(
self._update_hour, 1000//self.speed, start=False
)
def __panel__(self):
return self.deck_gl
@property
def spec(self):
return {
"initialViewState": {
"bearing": 0,
"latitude": 40.7,
"longitude": -73.9,
"maxZoom": 15,
"minZoom": 5,
"pitch": 40.5,
"zoom": 11
},
"layers": [self.hex_layer, self.arc_layer],
"mapStyle": "mapbox://styles/mapbox/dark-v9",
"views": [
{"@@type": "MapView", "controller": True}
]
}
@property
def hex_layer(self):
return {
"@@type": "HexagonLayer",
"autoHighlight": True,
"coverage": 1,
"data": self.data if self.view is None else self.view,
"elevationRange": [0, 100],
"elevationScale": self.elevation,
"radius": self.radius,
"extruded": True,
"getPosition": "@@=[pickup_x, pickup_y]",
"id": "8a553b25-ef3a-489c-bbe2-e102d18a3211"
}
@property
def arc_layer(self):
return {
"@@type": "ArcLayer",
"id": 'arc-layer',
"data": self.arc_view,
"pickable": True,
"getWidth": 1,
"getSourcePosition": "@@=[pickup_x, pickup_y]",
"getTargetPosition": "@@=[dropoff_x, dropoff_y]",
"getSourceColor": [0, 255, 0, 180],
"getTargetColor": [240, 100, 0, 180]
}
def _update_hour(self):
self.hour = (self.hour+1) % 24
@param.depends('view', watch=True)
def _update_arc_view(self, event=None):
data = self.data if self.view is None else self.view
if not self.deck_gl or not self.deck_gl.click_state:
self.arc_view = data.iloc[:0]
else:
lon, lat = self.deck_gl.click_state['coordinate']
tol = 0.001
self.arc_view = data[
(df.pickup_x>=float(lon-tol)) &
(df.pickup_x<=float(lon+tol)) &
(df.pickup_y>=float(lat-tol)) &
(df.pickup_y<=float(lat+tol))
]
@param.depends('hour', watch=True, on_init=True)
def _update_hourly_view(self):
self.view = self.data[self.data.hour==self.hour]
@param.depends('speed', watch=True)
def _update_speed(self):
self._cb.period = 1000//self.speed
@param.depends('play', watch=True)
def _play_pause(self):
if self._playing:
self._cb.stop()
self.param.play.label = '▷'
self.param.speed.precedence = -1
else:
self._cb.start()
self.param.play.label = '❚❚'
self.param.speed.precedence = 1
self._playing = not self._playing
@param.depends('view', 'radius', 'elevation', 'arc_view', watch=True)
def update_spec(self):
self.deck_gl.object = dict(self.spec)
url = 'https://s3.eu-west-1.amazonaws.com/assets.holoviews.org/data/nyc_taxi_wide.csv'
df = pd.read_csv(open_url(url))
app = App(data=df)
controls = pn.Param(app.param, sizing_mode='stretch_width', show_name=False)
await show(controls, 'widgets')
await show(app, 'plot')
</py-script>
</body>
</html>
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