43 lines
1.1 KiB
Python
43 lines
1.1 KiB
Python
from django import template
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from io import BytesIO
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import holoviews as hv
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from bokeh.embed import file_html
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from bokeh.resources import INLINE
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from bokeh.models.tools import PanTool, WheelZoomTool
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import base64
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register = template.Library()
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@register.simple_tag
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def pildata(image):
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data = BytesIO()
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image.save(data, "JPEG")
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content = base64.b64encode(data.getvalue()).decode("UTF-8")
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return f"data:img/jpeg;base64,{content}"
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@register.simple_tag
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def bkhtml(bkobject, lock_y=False):
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if lock_y:
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pan_tool = bkobject.select(dict(type=PanTool))
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pan_tool.dimensions = "width"
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zoom_tool = bkobject.select(dict(type=WheelZoomTool))
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zoom_tool.dimensions = "width"
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html = file_html(bkobject, INLINE)
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html = html.replace("http://localhost:5006/static/extensions/panel/css", "/static/frontend/vendor/panel")
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return html
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@register.simple_tag
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def hvhtml(hvobject, lock_y=True):
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return bkhtml(hv.render(hvobject), lock_y)
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@register.simple_tag
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def hvdata(hvobject):
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html = hvhtml(hvobject)
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return f"data:text/html;charset=utf-8,{html}" |