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The hover tool displays informational tooltips whenever the cursor is directly over a glyph.
The words "cursor is directly over" led me to believe that I wasn't remembering things correctly. So, I bugged Brian in the gitter:
A little tweaking of the HoverTool user-guide text would have kept me reading and eventually gotten me into the refguide where I would have seen hline and vline.
The limitations of hline and vline should be documented in the refguide as well.
make link into refguide more prominently featured. This may be as simple as having 'Reference' included in the link text. When I saw the 'HoverTool' link, I didn't bother to click it because I thought it might just be a self reference to the user-guide.
allude to the possibility of hline and vline in user-guide without being a full repeat of all the detial in the refguide
clarify limitations of hline and vline in the refguide
document the use of '~' in TOOLTIPS as in hover_span.py example. It seems needed for spanning hover modes.
update the 'Warning' block in HoverTool Reference to accurately reflect the glifs that are supported.
The text was updated successfully, but these errors were encountered:
@timsnyder@mattpap What does "$~x" do? I can't find anything in the BokehJS code that would explain it or what it does. Is it specific to bokeh.charts somehow? FYI I am going to update the docs along with #6183 and close this issue along with it.
@bryevdv$~x, in the context of a line and with mode=hline, will return the value of x "on the line", that is where the tooltip appears, instead of the value of x in the plot (under the mouse). I don't know what it does in other contexts.