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-rw-r--r--src/runtime/haskell/PGF/VisualizeTree.hs8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/runtime/haskell/PGF/VisualizeTree.hs b/src/runtime/haskell/PGF/VisualizeTree.hs
index d274b7300..29e8d3de2 100644
--- a/src/runtime/haskell/PGF/VisualizeTree.hs
+++ b/src/runtime/haskell/PGF/VisualizeTree.hs
@@ -637,6 +637,8 @@ latexDoc body =
body,
text "\\end{document}"]
+-- * SVG (see https://www.w3.org/Graphics/SVG/IG/resources/svgprimer.html)
+
-- | Render LaTeX pictures as SVG
toSVG = concatMap toSVG1
where
@@ -648,8 +650,12 @@ toSVG = concatMap toSVG1
("viewBox",unwords (map show [0,0,x1,y0+5])),
("version","1.1"),
("xmlns","http://www.w3.org/2000/svg")]
- (concatMap draw cmds)]
+ (white_bg:concatMap draw cmds)]
where
+ white_bg =
+ Elem "rect" ["x".=0,"y".=0,"width".=x1,"height".=y0+5,
+ ("fill","white")] []
+
draw (Put pos obj) = objectSVG pos obj
objectSVG pos obj =