allow false for color; properly expand extrema for tuple fillrange; make_fillrange_from_ribbon

src/args.jl

@@ -819,7 +819,7 @@ end
 
 function color_or_nothing!(d::KW, k::Symbol)
     v = d[k]
-    d[k] = if v == nothing
+    d[k] = if v == nothing || v == false
         colorscheme(RGBA(0,0,0,0))
     else
         v

src/axes.jl

@@ -170,7 +170,14 @@ function expand_extrema!(sp::Subplot, d::KW)
         fr = 0.0
     end
     if fr != nothing
-        expand_extrema!(sp.attr[vert ? :yaxis : :xaxis], fr)
+        axis = sp.attr[vert ? :yaxis : :xaxis]
+        if typeof(fr) <: Tuple
+            for fri in fr
+                expand_extrema!(axis, fri)
+            end
+        else
+            expand_extrema!(axis, fr)
+        end
     end
 
     # expand for bar_width

src/plot.jl

@@ -255,8 +255,7 @@ function _plot!(plt::Plot, d::KW, args...)
 
                 # convert a ribbon into a fillrange
                 if get(kw, :ribbon, nothing) != nothing
-                    rib = kw[:ribbon]
+                    make_fillrange_from_ribbon(kw)
-                    kw[:fillrange] = (kw[:y] - rib, kw[:y] + rib)
                 end
 
                 # add the plot index

src/series_args.jl

@@ -62,9 +62,11 @@ function convertToAnyVector(v::AVec, d::KW)
     end
 end
 
+convertToAnyVector(t::Tuple, d::KW) = Any[t], nothing
+
 
 function convertToAnyVector(args...)
-    error("No recipes could handle the argument types: $(map(typeof, args[1:end-1]))")
+    error("In convertToAnyVector, could not handle the argument types: $(map(typeof, args[1:end-1]))")
 end
 
 # --------------------------------------------------------------------

src/utils.jl

@@ -310,7 +310,23 @@ function ok(x::Number, y::Number, z::Number = 0)
 end
 ok(tup::Tuple) = ok(tup...)
 
+# compute one side of a fill range from a ribbon
+function make_fillrange_side(y, rib)
+    frs = zeros(length(y))
+    for (i, (yi, ri)) in enumerate(zip(y, cycle(rib)))
+        frs[i] = yi + ri
+    end
+    frs
+end
 
+# turn a ribbon into a fillrange
+function make_fillrange_from_ribbon(kw::KW)
+    y, rib = kw[:y], kw[:ribbon]
+    rib = wraptuple(rib)
+    rib1, rib2 = -first(rib), last(rib)
+    kw[:ribbon] = nothing
+    kw[:fillrange] = make_fillrange_side(y, rib1), make_fillrange_side(y, rib2)
+end
 
 # ---------------------------------------------------------------