generalize plot recipes

Author: rush42

src/plotrecipes.jl

@@ -1,10 +1,8 @@
-function aspect_ratio(g::OSMGraph) 
+function aspect_ratio(g::AbstractOSMGraph) 
     max_y, min_y = extrema(first, g.node_coordinates)
     mid_y = (max_y + min_y)/2
     return 1/cos(mid_y * pi/180)
 end
-aspect_ratio(sg::SimplifiedOSMGraph) = aspect_ratio(sg.parent)
-
 
 RecipesBase.@recipe function f(g::AbstractOSMGraph)
     color --> :black