From 08bdd11410955d56e4020480047854681aa1f7f3 Mon Sep 17 00:00:00 2001
From: "Michael K. Borregaard" <mkborregaard@snm.ku.dk>
Date: Mon, 9 Oct 2017 21:19:32 +0200
Subject: [PATCH] New spy implementation

---
 src/recipes.jl | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/recipes.jl b/src/recipes.jl
index 109b7b05..97352505 100644
--- a/src/recipes.jl
+++ b/src/recipes.jl
@@ -945,23 +945,21 @@ end
 @recipe function f(::Type{Val{:spy}}, x,y,z)
     yflip := true
     aspect_ratio := 1
+    
     rs, cs, zs = findnz(z.surf)
-    xlim := ignorenan_extrema(cs)
-    ylim := ignorenan_extrema(rs)
-    if plotattributes[:markershape] == :none
-        markershape := :circle
+    newz = fill(NaN, size(z)...)
+
+    for i in eachindex(zs)
+        newz[rs[i],cs[i]] = zs[i]
     end
-    if plotattributes[:markersize] == default(:markersize)
-        markersize := 1
-    end
-    markerstrokewidth := 0
-    marker_z := zs
-    label := ""
-    x := cs
-    y := rs
-    z := nothing
-    seriestype := :scatter
+
+    seriestype := :heatmap
     grid --> false
+    framestyle --> :box
+
+    x := x
+    y := y
+    z := Surface(newz)
     ()
 end