Dear all, I am Val, a new user of HoloViews, and only recently discovered the whole related universe (Bokeh, Panel, etc.). I am really impressed. I have a question about the hist() function for the Image element in HoloViews. I think I might have hit a bug, but I want to make sure I am not doing something wrong before I report and I waste precious 'developers time.
From the discussion about this issue:
I read: " .hist() already supports using the Box Select tool on the histogram to select the value ranges to map into the color range".
I was expecting that, as I select ranges on the histogram, the values in the colormap (and hence in the colorbar) would change according to my histogram selection, but I cannot get this to work. Here is my minimal example:
import holoviews as hv, numpy as np
hv.extension('bokeh')
test_array = np.random.rand(500,500)
hv.Image(test_array).opts(colorbar=True).hist()
The box selection on the histogram works, but nothing changes in the image and the colormap. Am I doing something wrong or should I open an issue?
Thank you for your help!
Val