mirror of
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98 lines
3.0 KiB
HTML
98 lines
3.0 KiB
HTML
<html><head>
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<title>Bokeh Example</title>
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<meta charset="iso-8859-1">
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<script type="text/javascript" src="https://cdn.bokeh.org/bokeh/release/bokeh-2.4.2.js"></script>
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<script type="text/javascript" src="https://cdn.bokeh.org/bokeh/release/bokeh-gl-2.4.2.min.js"></script>
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<script type="text/javascript" src="https://cdn.bokeh.org/bokeh/release/bokeh-widgets-2.4.2.min.js"></script>
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<script type="text/javascript" src="https://cdn.bokeh.org/bokeh/release/bokeh-tables-2.4.2.min.js"></script>
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<script type="text/javascript" src="https://cdn.bokeh.org/bokeh/release/bokeh-mathjax-2.4.2.min.js"></script>
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<script type="text/javascript">
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Bokeh.set_log_level("info");
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</script>
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<link rel="stylesheet" href="../build/pyscript.css" />
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<script defer src="../build/pyscript.js"></script>
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</head>
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<body>
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<py-env>
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- bokeh
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- numpy
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</py-env>
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<h1>Bokeh Example</h1>
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<div id="myplot"></div>
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<py-script id="main">
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import asyncio
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import json
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import pyodide
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from js import Bokeh, console, JSON
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from bokeh import __version__
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from bokeh.document import Document
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from bokeh.embed.util import OutputDocumentFor, standalone_docs_json_and_render_items
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from bokeh.models import Slider, Div
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from bokeh.layouts import Row
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from bokeh.protocol.messages.patch_doc import process_document_events
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# create a new plot with default tools, using figure
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p = Slider(start=0.1, end=10, value=1, step=.1, title="Amplitude")
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div = Div(text=f'Amplitude is: {p.value}')
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def callback(attr, old, new):
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div.text = f'Amplitude is: {new}'
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p.on_change('value', callback)
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row = Row(children=[p, div])
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def doc_json(model, target):
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with OutputDocumentFor([model]) as doc:
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doc.title = ""
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docs_json, _ = standalone_docs_json_and_render_items(
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[model], suppress_callback_warning=True
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)
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doc_json = list(docs_json.values())[0]
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root_id = doc_json['roots']['root_ids'][0]
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return doc, json.dumps(dict(
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target_id = target,
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root_id = root_id,
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doc = doc_json,
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version = __version__,
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))
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def _link_docs(pydoc, jsdoc):
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def jssync(event):
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if getattr(event, 'setter_id', None) is not None:
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return
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events = [event]
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json_patch = jsdoc.create_json_patch_string(pyodide.to_js(events))
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pydoc.apply_json_patch(json.loads(json_patch))
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jsdoc.on_change(pyodide.create_proxy(jssync), pyodide.to_js(False))
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def pysync(event):
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json_patch, buffers = process_document_events([event], use_buffers=True)
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buffer_map = {}
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for (ref, buffer) in buffers:
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buffer_map[ref['id']] = buffer
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jsdoc.apply_json_patch(JSON.parse(json_patch), pyodide.to_js(buffer_map), setter_id='js')
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pydoc.on_change(pysync)
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async def show(plot, target):
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pydoc, model_json = doc_json(plot, target)
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views = await Bokeh.embed.embed_item(JSON.parse(model_json))
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jsdoc = views[0].model.document
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_link_docs(pydoc, jsdoc)
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await show(row, 'myplot')
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</py-script>
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</body>
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</html>
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