我从OSMX上阅读了这个toturial，并在同一张Map上创建了一组路线。我也知道我想画的假想边界的最小和最大纬度和经度是什么。我将协调保存为以下内容

# Based on some routing and comptation these are lat long of routing region within in m.bounds (far smaller)

min_lat = minimum(lats)
max_lat = maximum(lats)
min_lon = minimum(lons)
max_lon = maximum(lons)

然后添加另一个黑矩形我做的

flm = pyimport("folium")
matplotlib_cm = pyimport("matplotlib.cm")
matplotlib_colors = pyimport("matplotlib.colors")

cmap = matplotlib_cm.get_cmap("prism")

mf = flm.Map()
for k=1:length(links_o)
    locs = [LLA(m.nodes[n],m.bounds) for n in links_o[k]]
    flm.PolyLine(        
        [(loc.lat, loc.lon) for loc in locs ],
        color=matplotlib_colors.to_hex(cmap(3))       
    ).add_to(mf)

end

Route_BOUNDS = [(min_lon,min_lat),(max_lon,max_lat)]  # added this
MAP_BOUNDS = [(m.bounds.min_y,m.bounds.min_x),(m.bounds.max_y,m.bounds.max_x)]
flm.Rectangle(MAP_BOUNDS, color="black",weight=6).add_to(mf)
flm.Rectangle(Route_BOUNDS, color="black",weight=6).add_to(mf) # and added this
mf.fit_bounds(MAP_BOUNDS)
mf

但是没有更小的矩形出现。如何在较大的矩形区域内添加另一个矩形区域？