Create Pie chart in Holoview

HoloViews
1

Hello! I am working with Bokeh and would like to draw a set if Pie charts upon Image in DynamicMap

pipe = Pipe(data=)
Image = hv.DynamicMap(hv.Image, streams=[pipe])

Could you provide any tips on how to work around it, please?

2

Maybe
https://panel.holoviz.org/reference/panes/Bokeh.html#panes-gallery-bokeh

1 Like
3

Thanks for the answer, it helped a lot! So in case someone is looking for the same thing, my code is next:

from bokeh.plotting import figure, show
import holoviews as hv
import numpy as np
hv.extension('bokeh')

pipe = Pipe(data=np.random.rand(10,10))

def hook(plot, element):
        plot.state.wedge(x=[-0.3, 0, -0.2], y=[-0.3, 0, -0.2], radius=[15,10,5],
                         start_angle=0.9, radius_units="screen", color="red")
    
a = hv.DynamicMap(hv.Image, streams=[pipe]).opts(hooks=[hook], xlim=(-.5, .5), ylim=(-.5, .5))
a
2 Likes
4

Hi @JhonnyKokos

While running your code, I encountered an error, since Pipe is not defined. Could you explain what Pipe is? Could you also share a working code so that I can visualize what you did?

Thanks,
Sam

5

from holoviews.streams import Pipe, Buffer
https://holoviews.org/user_guide/Streaming_Data.html

1 Like
6

Thanks. I found it.