def plot_map(ds, palette=cts.MAP_PALLETE, breeze=cfg.MAP_BREEZE):
"""Plot cases map."""
# Calculating map bounds
minx, miny, maxx, maxy = ds.total_bounds
x_range = maxx - minx
y_range = maxy - miny
ar = (maxx - minx) / (maxy - miny)
x_range = (minx - breeze * x_range, maxx + breeze * x_range)
y_range = (miny - breeze * y_range, maxy + breeze * y_range)
# Preparing data
ds = GeoJSONDataSource(geojson=ds.to_json())
tools = "pan,reset,save"
color_mapper = LogColorMapper(palette=tuple(reversed(palette)))
p = figure(tools=tools,
x_range=x_range,
y_range=y_range,
aspect_ratio=ar,
x_axis_location=None,
y_axis_location=None,
match_aspect=True)
p.grid.grid_line_color = None
p.toolbar.logo = None
p.patches('xs',
'ys',
fill_alpha=0.7,
fill_color={
'field': 'total_color',
'transform': color_mapper
},
line_color='gray',
line_width=0.25,
source=ds)
p.add_tools(
HoverTool(tooltips=cts.MAP_TOOLTIP,
point_policy="follow_mouse",
toggleable=False))
# Adding zoom tool
wheel_zoom = WheelZoomTool(zoom_on_axis=False)
p.add_tools(wheel_zoom)
p.toolbar.active_scroll = wheel_zoom
# Applying theme
doc = curdoc()
doc.theme = cfg.THEME
return p
