Try use apache batik for example rendering #70

data/brent_monthly_usd.csv

@@ -367,3 +367,4 @@ dato,usd
 2017-11,62.71
 2017-12,64.37
 2018-01,69.08
+2018-02,65.15

data/valuta_monthly.csv

@@ -696,3 +696,4 @@ Date,1 AUD,100 BGN,1 BRL,1 CAD,100 CHF,100 CNY,100 CZK,100 DKK,1 EUR,1 GBP,1 HKD
 2017-11,6.2414,491.27,2.5122,6.4149,825.44,123.62,37.624,129.11,9.6082,10.8208,1.0487,127.24,3.0806,106.01,0.060520,2.3274,12.621,7.2574,0.7437,ND,43.25,1.9649,5.6378,16.085,7.772,2.2733,207.31,13.883,97.56,6.0385,24.877,210.20,27.204,114.73,8.1853,11.54594,0.5818,ND,4.1013,9.85,0.5977,ND
 2017-12,6.3554,503.18,2.5275,6.5139,841.90,126.05,38.375,132.22,9.8412,11.1497,1.0642,130.53,3.1426,108.34,0.061322,2.3717,12.938,7.3642,0.7668,ND,43.49,2.0402,5.7889,16.512,7.658,2.3414,212.33,14.179,99.04,6.1747,25.470,216.26,27.743,117.31,8.3147,11.77922,0.6323,ND,4.1285,10.05,0.6075,ND
 2018-01,6.2886,493.22,2.4628,6.3611,822.87,123.05,37.900,129.56,9.6464,10.9209,1.0115,129.73,3.1191,105.97,0.059130,2.3107,12.425,7.1322,0.7417,ND,41.78,1.9994,5.7422,15.635,7.142,2.3171,207.49,13.958,98.23,5.9838,24.791,209.64,26.882,114.84,7.9092,11.37544,0.6478,ND,3.9746,9.52,0.5867,ND
+2018-02,6.1663,494.49,2.4113,6.2291,837.90,123.89,38.196,129.89,9.6712,10.9407,1.0014,129.99,3.1024,105.85,0.057588,2.2403,12.156,7.2571,0.7264,ND,42.00,2.0016,5.7253,15.084,7.072,2.3218,207.72,13.777,97.32,5.9354,24.870,207.05,26.781,114.74,7.8327,11.35306,0.6624,ND,3.9646,9.42,0.5881,ND

project.clj

@@ -20,6 +20,8 @@
                  [cheshire "5.7.1"]
                  [org.eclipse.jetty/jetty-util "9.4.5.v20170502"]
                  [clj-time "0.13.0"]
+                 [org.apache.xmlgraphics/batik-rasterizer "1.9.1"]
+                 [org.apache.xmlgraphics/batik-codec "1.9.1"]
                  [com.vdurmont/emoji-java "3.2.0"]
                  [hickory/hickory "0.7.1"]]
   :aot [clj-simple-chart.jfx]

src/clj_simple_chart/demo/batikpng.clj

@@ -0,0 +1,17 @@
+(ns clj-simple-chart.demo.batikpng
+  (:import [org.apache.batik.transcoder.image PNGTranscoder]
+           (org.apache.batik.transcoder TranscoderInput TranscoderOutput)
+           (java.io StringReader BufferedOutputStream FileOutputStream)
+           (java.awt Color)))
+
+(defn write-png [^String s ^String output-filename]
+  (let [t (doto (PNGTranscoder.)
+            (.addTranscodingHint PNGTranscoder/KEY_PIXEL_TO_MM (Float. 0.2645833)) ; 96 dpi
+            (.addTranscodingHint PNGTranscoder/KEY_BACKGROUND_COLOR Color/white))]
+    (with-open [input (StringReader. s)
+                output (BufferedOutputStream. (FileOutputStream. output-filename))]
+      (.transcode t (TranscoderInput. input) (TranscoderOutput. output)))))
+
+(defn demo []
+  (write-png (slurp "img/ssb-svg/nettokontantstraum.svg") "demo.png"))
+  ; MD5 (demo.png) = 014a1215aa4c365462bcdcff920c6f4d on OS X