Plot_ly rotate animation in R - r

Question

I am trying to animate a 3D figure being rotated around an axis and print that as a .gif or video format. Could not find a resource to assist, please point me in the right direction. Any input is appreciated. Example figure below:
library(plotly)
x <- iris$Sepal.Length
y <- iris$Sepal.Width
z <- iris$Petal.Length
test3d <- plot_ly(type = "scatter3d", mode = "markers",
x=x, y=y, z=z)

Answer 1

This is taken from my earlier answer here.
We can use the code without shiny and save a standalone HTML file via htmlwidgets::saveWidget:
library(plotly)
library(htmlwidgets)
library(utils)
N <- 100
x <- rnorm(N, mean = 50, sd = 2.3)
y <- runif(N, min = 0, max = 100)
z <- runif(N, min = 4, max = 70)
luci.frame <- data.frame(x, y, z)
fig <- plot_ly(
type = "scatter3d",
mode = "markers",
data = luci.frame,
x = ~ x,
y = ~ y,
z = ~ z
) %>%
layout(scene = list(camera = list(
eye = list(
x = 1.25,
y = 1.25,
z = 1.25
),
center = list(x = 0,
y = 0,
z = 0)
))) %>%
onRender("
function(el, x){
var id = el.getAttribute('id');
var gd = document.getElementById(id);
Plotly.update(id).then(attach);
function attach() {
var cnt = 0;
function run() {
rotate('scene', Math.PI / 180);
requestAnimationFrame(run);
}
run();
function rotate(id, angle) {
var eye0 = gd.layout[id].camera.eye
var rtz = xyz2rtz(eye0);
rtz.t += angle;
var eye1 = rtz2xyz(rtz);
Plotly.relayout(gd, id + '.camera.eye', eye1)
}
function xyz2rtz(xyz) {
return {
r: Math.sqrt(xyz.x * xyz.x + xyz.y * xyz.y),
t: Math.atan2(xyz.y, xyz.x),
z: xyz.z
};
}
function rtz2xyz(rtz) {
return {
x: rtz.r * Math.cos(rtz.t),
y: rtz.r * Math.sin(rtz.t),
z: rtz.z
};
}
};
}
")
htmlwidgets::saveWidget(partial_bundle(fig), file = "rotate_scatter3d.HTML", selfcontained = TRUE)
utils::browseURL("rotate_scatter3d.HTML")