Sunday, 31 March 2019

3D scatterplot using custom image

I am trying to use ggplot and ggimage to create a 3D scatterplot with a custom image. It works fine in 2D:

library(ggplot2)
library(ggimage)
library(rsvg)

set.seed(2017-02-21)
d <- data.frame(x = rnorm(10), y = rnorm(10), z=1:10,
  image = 'https://image.flaticon.com/icons/svg/31/31082.svg'
)

ggplot(d, aes(x, y)) + 
  geom_image(aes(image=image, color=z)) +
  scale_color_gradient(low='burlywood1', high='burlywood4')

enter image description here

I've tried two ways to create a 3D chart:

  1. plotly - This currently does not work with geom_image, though it is queued as a future request.

  2. gg3D - This is an R package, but I cannot get it to play nice with custom images. Here is how combining those libraries ends up:

library(ggplot2)
library(ggimage)
library(gg3D)

ggplot(d, aes(x=x, y=y, z=z, color=z)) +
  axes_3D() +
  geom_image(aes(image=image, color=z)) +
  scale_color_gradient(low='burlywood1', high='burlywood4')

enter image description here

Any help would be appreciated. I'd be fine with a python library, javascript, etc. if the solution exists there.



from 3D scatterplot using custom image

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