adds svg plot option

[pachadotdev]

works smooth!

[codecov-io]

Codecov Report

Merging #398 into master will decrease coverage by 0.18%.
The diff coverage is 40%.

@@            Coverage Diff             @@
##           master     #398      +/-   ##
==========================================
- Coverage   89.53%   89.34%   -0.19%     
==========================================
  Files          28       28              
  Lines        1414     1417       +3     
==========================================
  Hits         1266     1266              
- Misses        148      151       +3

Impacted Files	Coverage Δ
R/images.R	95% <0%> (-5%)	⬇️
R/content-types.R	100% <100%> (ø)	⬆️
R/parse-block.R	95.83% <33.33%> (-0.9%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update e361005...f3a4ac7. Read the comment docs.

[CLAassistant]

All committers have signed the CLA.

[pachadotdev]

Hi @trestletech. I've been using this modification for ~1 year and it works ok, a client wanted an api to show plots, and I did it with ggplot2 + plumber

[schloerke]

This makes sense.

How far should this go? All major graphics devices?

Current:
jpeg, png, (svg)

Possible formats baked into R:
bmp, tiff, pdf, (any others?)

I don't want to import Cairo.

Don't know if we should namespace the image type. Ex:

#' @image jpeg √
#' @image tiff √
#' @jpeg // allowed as a shorthand version of #' @image jpeg
#' @tiff // not possible

[pachadotdev]

I need to think more, I see more value in the CSV PR, but I'll dig into this soon

[schloerke]

No rush. Am tied up with shiny for the month. Plan to dive deep on plumber in March.