Polyhedra Database

A polyhedra database scraped from various sources as R6 objects and 'rgl' visualizing capabilities.


A 142 polyhedra Database scraped from PHD as R6 objects and 'rgl' visualizing capabilities. The PHD format was created to describe the geometric polyhedron definitions derived mathematically by Andrew Hume and by the Kaleido program of Zvi Har'El.

PHD files were generated using [http://www.netlib.org/poly2/readme] library which is no longer mantained. Althought the code is available, "archeological" programming skills are required for building it with current progamming languages standards.

Exploring PDH files

For navigating extdata/www.netlib.org/polyhedra/index.html

How to get started (Development version)

Install the R package using the following commands on the R console:

install.packages(c("futile.logger", "rgl", "stringr", "R6", "testthat", "devtools"))
devtools::install_github("qbotics/Rpolyhedra")
library(Rpolyhedra)

A simple example of 5 regular polyhedra

To get started execute the following commands:

polyhedra.2.draw <- getAvailablePolyhedra()[1:5]
n <- length(polyhedra.2.draw)
polyhedron.colors <- rainbow(n)
polyhedron.scale <- 5
 
open3d()
par3d(FOV = 1)
rgl.bg( sphere =FALSE, fogtype = "none", color=c("black"))
rgl.viewpoint(theta = 0,phi=0,zoom=0.8,fov=1)
i <- 1
for (polyhedron.name in polyhedra.2.draw) {
  polyhedron <- getPolyhedron(polyhedron.name)
  current.angle <- i/n * 2 * pi
  shape.rgl <- polyhedron$getRGLModel(1, c(polyhedron.scale * sin(current.angle),
                                           polyhedron.scale * cos(current.angle),
                                           0))
  shade3d(shape.rgl, color = polyhedron.colors[i])
  i <- i + 1
}
 

Troubleshooting

devtools

Ubuntu

apt-get install libcurl4-openssl-dev

Windows

Wait for CRAN version

OSX brew

brew install openssl

After, in R:

install.packages("devtools")

rgl

Ubuntu

sudo apt-get install r-cran-rgl

News

Reference manual

It appears you don't have a PDF plugin for this browser. You can click here to download the reference manual.

install.packages("Rpolyhedra")

0.2.6 by Alejandro Baranek, 2 months ago


Report a bug at https://github.com/qbotics/Rpolyhedra/issues


Browse source code at https://github.com/cran/Rpolyhedra


Authors: Alejandro Baranek [aut, com, cre, cph], Leonardo Belen [aut, com, cph]


Documentation:   PDF Manual  


MIT + file LICENSE license


Imports futile.logger, rgl, stringr, R6, testthat, XML

Suggests knitr, rmarkdown, covr


See at CRAN