CODEWITHSUNDEEP
rfiletextconnection
Søren ONeill
Søren ONeill

Reputation: 529

R - How to use connection instead of file?

Is there a generic way to supply a function which expects a text file as input with a string instead?

I want to convert 56000+ svg 'files' into a raster/grid format (bitmap, png or similar)

But the svg files are not stored as files, but rather as strings in a data frame

I thought I could use textConnection but I'm not having any luck: 

> pseudo_file <- textConnection(data[1,"svg"])
> bitmap <- rsvg(pseudo_file)
Error: is.raw(svg) is not TRUE

Upvotes: 1

Views: 202

Answers (1)

gaut
gaut

Reputation: 5958

The below works for me. Make sure that the strings are recognized as correct URL's for R: the \ should be replaced by \\ or /.

library(rsvg)
myfiles <- c("example.svg" , "example.svg")
for(i in myfiles) {
  test <- rsvg(i)
}
test

If the SVG is a string, you can use charToRaw to convert SVG strings into raw data.

Upvotes: 1

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