Changing cmap for Image with label about holoviews

[jlstevens]

Also very surprising. The second example you mention should also work fine:

import numpy as np
%load_ext holoviews.ipython
from holoviews import Image
Image(np.random.rand(5,5), label='A')(style={'cmap':'gray'})

Are you using HoloViews 1.0.1 from PyPI (i.e. installed with pip) or are you using a development version cloned from GitHub?

[jlstevens]

Does the object far + near + pump + dmk display ok (i.e without an error) if you don't try setting the 'gray' color map?

By the way, if you want all Images to always to be shown with grayscale (by default) you can do:

Store.options.Curve = Options('style', cmap='gray')

Alternatively, you could set a group and set a style specific to that group. E.g if you have:

Image(read_dmk(files[index[3]]), label='M'+files[index[3]], group='DMK')

You could set this once for all Images that are to be displayed in the style of dmk:

Store.options.Image.DMK = Options('style', cmap='gray')

Hope that helps but I would still like to get to the bottom of your original error!

[vascotenner]

The problem is in the label. Labels with '.' seems to be problematic:

Image(data, label='M09_pump.bmp')(style={'cmap':'Greens_r'})

Thank you for the suggestion to use groups. This makes the code more readable.

[jlstevens]

We will probably just escape the period like everything else (when used for attribute access). This will be fixed by the next bug fix release (i.e very soon).

[jlstevens]

This issue should now be fixed in 612f6d3. I'll keep this issue open for a while longer in case anyone has any comments on this commit.

[jlstevens]

Ok. Looks like I can close this issue now.