## ----setup, include=FALSE-----------------------------------------------------
# library(rgl)
# #library(rglwidget)
# setupKnitr()
# knitr::opts_chunk$set(echo = TRUE,
#                       fig.align = "center",
#                       warning = FALSE,
#                       webgl = TRUE,
#                       fig.width = 8, 
#                       fig.height = 8,
#                       fig.keep = "all",
#                       fig.ext = "jpeg"
#                       )

