I am trying to import a scatter plot from a PDF. The plot was originally created in R. When I import the PDF I am unable to see the scatter points. Not sure what I am doing wrong? Plots with lines seem to work fine.
A toy example to demonstrate the problem:
pdf(file = "./temp.pdf", height = 5, width = 5) plot(mtcars$mpg, mtcars$cyl, type = "p") dev.off() file.show("temp.pdf") # same issue with ggplot # pdf(file = "./temp.pdf", height = 5, width = 5) # ggplot(data = mtcars, mapping = aes(x = mpg, y = cyl)) + # geom_point() # dev.off() p0 <- magick::image_read_pdf('./temp.pdf') p0 p1 <- pdftools::pdf_render_page('./temp.pdf') png::writePNG(p1, "temp.png") file.show("temp.png")
> sessionInfo() R version 3.6.0 (2019-04-26) Platform: x86_64-w64-mingw32/x64 (64-bit) Running under: Windows 10 x64 (build 17763) Matrix products: default locale:  LC_COLLATE=English_United States.1252 LC_CTYPE=English_United States.1252  LC_MONETARY=English_United States.1252 LC_NUMERIC=C  LC_TIME=English_United States.1252 attached base packages:  stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached):  compiler_3.6.0 magrittr_1.5 magick_2.0 tools_3.6.0 Rcpp_1.0.1  pdftools_2.2 qpdf_1.1 png_0.1-7 askpass_1.1