Merge pull request #2186 from JuliaPlots/as/fix-ribbon-2tuple-dispatch

Fix plotting ribbons as 2-tuples

src/examples.jl

@@ -165,7 +165,7 @@ PlotExample("Marker types",
 ),
 
 PlotExample("Bar",
-    "x is the midpoint of the bar. (todo: allow passing of edges instead of midpoints)",
+    "`x` is the midpoint of the bar. (todo: allow passing of edges instead of midpoints)",
     [:(begin
         bar(randn(99))
     end)]
@@ -454,6 +454,23 @@ see: http://stackoverflow.com/a/37732384/5075246
     end)]
 ),
 
+PlotExample("Ribbons",
+    """
+    Ribbons can be added to lines via the `ribbon` keyword;
+    you can pass a tuple of arrays (upper and lower bounds),
+    a single Array (for symmetric ribbons), a Function, or a number.
+    """,
+    [:(begin
+        plot(
+            plot(0:10; ribbon = (LinRange(0, 2, 10), LinRange(0, 1, 10))),
+            plot(0:10; ribbon = 0:0.5:5),
+            plot(0:10; ribbon = sqrt),
+            plot(0:10; ribbon = 1),
+        )
+    end)
+    ]
+),
+
 ]
 
 # Some constants for PlotDocs and PlotReferenceImages

src/series.jl

@@ -61,7 +61,7 @@ process_fillrange(range, plotattributes) = convertToAnyVector(range, plotattribu
 process_ribbon(ribbon::Number, plotattributes) = [ribbon]
 process_ribbon(ribbon, plotattributes) = convertToAnyVector(ribbon, plotattributes)
 # ribbon as a tuple: (lower_ribbons, upper_ribbons)
-process_ribbon(ribbon::Tuple{Any,Any}) = collect(zip(convertToAnyVector(ribbon[1], plotattributes),
+process_ribbon(ribbon::Tuple{Any,Any}, plotattributes) = collect(zip(convertToAnyVector(ribbon[1], plotattributes),
                                                      convertToAnyVector(ribbon[2], plotattributes)))