Merge pull request #416 from JuliaPlots/as/fixjuno-1

Update the Juno plotpane resizing method

src/display.jl

@@ -74,9 +74,23 @@ for M in (MIME"text/plain", MIME)
         # set update to true, without triggering an event
         # this just indicates, that now we may update on e.g. resize
         update!(scene)
+
+        # Here, we deal with the Juno plotsize.  
+        # Since SVGs are in units of pt, which is 1/72 in,
+        # and pixels (which Juno reports its plotsize as)
+        # are 1/96 in, we need to rescale the scene,
+        # whose units are in pt, into the expected size in px.
+        # This means we have to scale by a factor of 72/96.
         res = get(io, :juno_plotsize, nothing)
-        res !== nothing && resize!(scene, res...)
-        ioc = IOContext(io, :full_fidelity => true, :pt_per_unit => get(io, :pt_per_unit, 0.75), :px_per_unit => get(io, :px_per_unit, 1.0))
+        if !isnothing(res)
+            if m isa MIME"image/svg+xml"
+                res = round.(Int, res .* 0.75)
+            end
+            resize!(scene, res...)
+        end
+
+        ioc = IOContext(io, :full_fidelity => true, :pt_per_unit => get(io, :pt_per_unit, 1.0), :px_per_unit => get(io, :px_per_unit, 1.0))
+
         screen = backend_show(current_backend[], ioc, m, scene)
 
         # E.g. text/plain doesn't have a display