Why doesn't Inkscape correctly read PDF files generated by R?
Very often, I draw graphs in R and export them in pdf or svg. Then I import them in Inkskape or Illustrator. Sometimes this generates weird results. For instance, when I generate a simple scatterplot with shapes (1 and 16), Inkscape in unable to read it and generate the following file. See my gist file. I suspect that this should be due to the default options of the pdf() graphics device but I'm not sure. Does anyone has a solution?
This is a symptom of different fonts being used as the plotting symbols. Try creating the PDF file using:
pdf("test.pdf", useDingbats = F)
plot(1:10, 10:1, pch=16 )
dev.off()
Screenshot from Inkscape
There is a long "Note" in ?pdf about why the authors of R think some pdf viewers (apparently Inkscape being one such) are failing and some configuration suggestions which I have not tested on my Mac.
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