try to fix worldage probs in PNG preview()

JuliaGraphics · Jan 4, 2018 · d333473 · d333473
1 parent 2fec472
commit d333473
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Showing 2 changed files with 4 additions and 3 deletions.
diff --git a/docs/src/simplegraphics.md b/docs/src/simplegraphics.md
@@ -837,7 +837,7 @@ fontsize(8) # hide
 sethue("black") # hide
 translate(-350, 0) # hide
 
-function mybarfunction(low::Point, high::Point, value; extremes=[0, 1])
+function mybarfunction(low::Point, high::Point, value; extremes=[0, 1], barnumber=0, bartotal=0)
     @layer begin
         sethue(rescale(value, extremes[1], extremes[2], 0, 1), 0.0, 1.0)
         circle(high, 8, :fill)
@@ -849,7 +849,7 @@ function mybarfunction(low::Point, high::Point, value; extremes=[0, 1])
     end
 end
 
-function mylabelfunction(low::Point, high::Point, value; extremes=[0, 1])
+function mylabelfunction(low::Point, high::Point, value; extremes=[0, 1], barnumber=0, bartotal=0)
     @layer begin
         translate(low)
         rotate(-pi/2)

diff --git a/src/Luxor.jl b/src/Luxor.jl
@@ -335,7 +335,8 @@ function preview()
     if candisplay && jupyter
         Main.IJulia.clear_output(true)
         if currentdrawing.surfacetype == :png
-            display("image/png", load(currentdrawing.filename))
+            # avoid world age errors
+            Base.invokelatest(display, "image/png", load(currentdrawing.filename))
         elseif currentdrawing.surfacetype == :svg
             open(currentdrawing.filename) do f
                 display("image/svg+xml", readstring(f))