allow turning on/off the axes border

src/arg_desc.jl

@@ -93,6 +93,7 @@ const _arg_desc = KW(
 :bottom_margin            => "Measure (multiply by `mm`, `px`, etc) or `:match` (matches `:margin`).  Specifies the extra padding on the bottom of the subplot.",
 :subplot_index            => "Integer.  Internal (not set by user).  Specifies the index of this subplot in the Plot's `plt.subplot` list.",
 :colorbar_title           => "String.  Title of colorbar.",
+:draw_axes_border         => "Bool.  Draw a border around the axes.",
 
 # axis args
 :guide     				  => "String. Axis guide (label).",

src/args.jl

@@ -282,6 +282,7 @@ const _subplot_defaults = KW(
     :bottom_margin            => :match,
     :subplot_index            => -1,
     :colorbar_title           => "",
+    :draw_axes_border         => false,
 )
 
 const _axis_defaults = KW(
@@ -493,6 +494,7 @@ add_aliases(:orientation, :direction, :dir)
 add_aliases(:inset_subplots, :inset, :floating)
 add_aliases(:gridlinewidth, :gridwidth, :grid_linewidth, :grid_width, :gridlw, :grid_lw)
 add_aliases(:gridstyle, :grid_style, :gridlinestyle, :grid_linestyle, :grid_ls, :gridls)
+add_aliases(:draw_axes_border, :axes_border, :show_axes_border)
 
 
 # add all pluralized forms to the _keyAliases dict

src/axes.jl

@@ -502,10 +502,10 @@ function axis_drawing_info(sp::Subplot)
         t2 = invf(f(ymax) - 0.015*(f(ymax)-f(ymin)))
 
         push!(xspine_segs, (xmin,ymin), (xmax,ymin)) # bottom spine
-        # push!(xspine_segs, (xmin,ymax), (xmax,ymax)) # top spine
+        sp[:draw_axes_border] && push!(xspine_segs, (xmin,ymax), (xmax,ymax)) # top spine
         for xtick in xticks[1]
             push!(xspine_segs, (xtick, ymin), (xtick, t1)) # bottom tick
-            # push!(xspine_segs, (xtick, ymax), (xtick, t2)) # top tick
+            # sp[:draw_axes_border] && push!(xspine_segs, (xtick, ymax), (xtick, t2)) # top tick
             xaxis[:grid] && push!(xgrid_segs,  (xtick, t1),   (xtick, t2)) # vertical grid
         end
     end
@@ -517,10 +517,10 @@ function axis_drawing_info(sp::Subplot)
         t2 = invf(f(xmax) - 0.015*(f(xmax)-f(xmin)))
 
         push!(yspine_segs, (xmin,ymin), (xmin,ymax)) # left spine
-        # push!(yspine_segs, (xmax,ymin), (xmax,ymax)) # right spine
+        sp[:draw_axes_border] &&  push!(yspine_segs, (xmax,ymin), (xmax,ymax)) # right spine
         for ytick in yticks[1]
             push!(yspine_segs, (xmin, ytick), (t1, ytick)) # left tick
-            # push!(yspine_segs, (xmax, ytick), (t2, ytick)) # right tick
+            # sp[:draw_axes_border] && push!(yspine_segs, (xmax, ytick), (t2, ytick)) # right tick
             yaxis[:grid] && push!(ygrid_segs,  (t1, ytick),   (t2, ytick)) # horizontal grid
         end
     end

src/backends/glvisualize.jl

@@ -39,7 +39,8 @@ const _glvisualize_attr = merge_with_base_supported([
     :clims,
     :inset_subplots,
     :dpi,
-    :hover
+    :hover,
+    :draw_axes_border,
 ])
 const _glvisualize_seriestype = [
     :path, :shape,

src/backends/gr.jl

@@ -32,6 +32,7 @@ const _gr_attr = merge_with_base_supported([
     :inset_subplots,
     :bar_width,
     :arrow,
+    :draw_axes_border,
 ])
 const _gr_seriestype = [
     :path, :scatter,

src/backends/pyplot.jl

@@ -32,6 +32,7 @@ const _pyplot_attr = merge_with_base_supported([
     :inset_subplots,
     :dpi,
     :colorbar_title,
+    :draw_axes_border,
   ])
 const _pyplot_seriestype = [
         :path, :steppre, :steppost, :shape,
@@ -1088,6 +1089,12 @@ function _before_layout_calcs(plt::Plot{PyPlotBackend})
 
         # this sets the bg color inside the grid
         ax[set_facecolor_sym](py_color(sp[:background_color_inside]))
+
+        if !sp[:draw_axes_border]
+            # hide the right and top spines
+            ax[:spines]["right"][:set_visible](false)
+            ax[:spines]["top"][:set_visible](false)
+        end
     end
     py_drawfig(fig)
 end