I would like to create a bokeh gmap figure with some plotted circles, save that figure's map background, and then create offline figures with new circles on that same map background. For example:
import bokeh.plotting as bk
from bokeh.models import GMapOptions
from bokeh.io import output_file, show, save
output_file('test.html', , mode='inline')
api_key = #insert your key here
mid_lat = 39.8283
mid_lon = 98.5795
map_options = GMapOptions(lat = mid_lat, lng = mid_lon, map_type="satellite", zoom=15)
lons = [mid_lon + 0.001, mid_lon - 0.001, mid_lon]
lats = [mid_lat + 0.001, mid_lat - 0.001, mid_lat]
p = bk.gmap(google_api_key = api_key, map_options = map_options)
p.circle(x = lons, y = lats, color = 'white')
save(p, 'test.html')
show(p)
Gives the following, plotting three white points on the map:
Now, I want to use that same map image off line--with the zoom level, the x and y domains constant. But I want to plot new circles. For example:
lons = [mid_lon + 0.003, mid_lon - 0.003, mid_lon]
lats = [mid_lat + 0.003, mid_lat - 0.003, mid_lat]
Is there a way to save the figure's background image and load it into a new plot? Looking it doesn't look like GMap supports this, but is there a clever workaround to do this in python?
It seems that I might need to save my own tile provider (as shown here), but I think I'm misunderstanding the correct way to do this and then have bokeh re-access the images/tiles offline. But the tiles approach might not even be the way to go for my simple, static map.
Python 3.6, Bokeh 12.7