What are you trying to do?
Hello,
I am trying to plot a GeoDataFrame containing LineStrings representing geological lineaments (fault traces on the surface) and to create a HoverTool that shows me information such as the name of the fault or the length.
What have you tried that did NOT work as expected?
I achieved plotting the GeoDataFrame as multi_lines and created a HoverTool but when showing the plot. the information do not appear. The file is quite large, so there is a large number of lines. I recall that I read that a large number of lines may cause some issues with the Hover Tool? I also tried using @… in the tooltips but not even a frame appears…
Thanks for the help 
Here some code examples:
from bokeh.models import ColumnDataSource
geo_data = ColumnDataSource(faults_reproj.drop('geometry', axis=1))
p = figure(title="Test",
x_axis_label='X [m]',
y_axis_label='Y [m]',
match_aspect=True,
plot_width=800,
plot_height=600,
x_range=(7.5e5, 10.5e5),
y_range=(6.65e6, 6.90e6))
p.add_tile(tile_provider)
faults_renderer = p.multi_line(xs='X',
ys='Y',
source=geo_data,
color='red',
line_width=3,
legend_label="Faults",
hover_line_alpha=1.0)
fault_hover_tool = HoverTool(tooltips=[('X_value', '$xs')],
renderers=[faults_renderer],
line_policy='nearest',
show_arrow=False,
mode='vline'
)
p.add_tools(fault_hover_tool)
p.legend.click_policy="hide"
show(p)
