Fixed an issue where graphviz plots in vector format were cropped when a DPI was specified (#40)

Author: LaurentRDC

CHANGELOG.md

@@ -2,9 +2,13 @@
 
 pandoc-plot uses [Semantic Versioning](http://semver.org/spec/v2.0.0.html)
 
+## Release 1.5.4
+
+* Fixed an issue where graphviz plots in vector format were cropped when a DPI was specified (#40).
+
 ## Release 1.5.3
 
-* Fixed an issue where the `tight_bbox` option for Matplotlib plots was ignored (#48)
+* Fixed an issue where the `tight_bbox` option for Matplotlib plots was ignored (#48).
 
 ## Release 1.5.2
 

pandoc-plot.cabal

@@ -1,6 +1,6 @@
 cabal-version:  2.2
 name:           pandoc-plot
-version:        1.5.3
+version:        1.5.4
 synopsis:       A Pandoc filter to include figures generated from code blocks using your plotting toolkit of choice.
 description:    A Pandoc filter to include figures generated from code blocks. 
                 Keep the document and code in the same location. Output is 

src/Text/Pandoc/Filter/Plot/Renderers/Graphviz.hs

@@ -43,8 +43,11 @@ graphvizSupportedSaveFormats = [PNG, PDF, SVG, JPG, EPS, WEBP, GIF]
 graphvizCommand :: Text -> OutputSpec -> Text
 graphvizCommand cmdargs OutputSpec {..} =
   let fmt = fmap toLower . show . saveFormat $ oFigureSpec
-      dpi' = dpi oFigureSpec
-   in [st|#{pathToExe oExecutable} #{cmdargs} -T#{fmt} -Gdpi=#{dpi'} -o "#{oFigurePath}" "#{oScriptPath}"|]
+      -- Specifying a DPI when the output format is SVG crops the final figure
+      -- See issue #40
+      -- TODO: does this also affect other vector formats like EPS?
+      dpi' = if saveFormat oFigureSpec == SVG then mempty else [st|-Gdpi=#{dpi oFigureSpec}|]
+   in [st|#{pathToExe oExecutable} #{cmdargs} -T#{fmt} #{dpi'} -o "#{oFigurePath}" "#{oScriptPath}"|]
 
 -- Graphviz export is entirely based on command-line arguments
 -- so there is no need to modify the script itself.