Bokeh grid lines

Not sure if bokeh has changed the default way they draw grid lines but I noticed that show_grid=True in opts no longer has any effect for me (holoviews 1.8.4 and bokeh 0.12.6). The following change fixes it but I wanted to make sure I wasn’t crazy first and confirm that someone else is having this problem. This doesn’t give much control over the grid shown though 😞

in holoviews/plotting/bokeh/element.ElementPlot._update_plot change

if not self.show_grid:
            plot.xgrid.grid_line_color=None
            plot.ygrid.grid_line_color=None

to

if self.show_grid:
            plot.xgrid.grid_line_color='black'
            plot.ygrid.grid_line_color='black'

Thoughts? Is there a better/easier way to get grid lines or should I raise a PR?

[philippjfr]

It is now possible to set an explicit gridstyle which is documented in the plotting with bokeh user guide.

[philippjfr]

Thanks, that’s helpful!