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This fork contains several modifications to RGL primarily for use with shinyRGL:
  - working branch - Adds ability to click points, some usability improvements
  - mobile branch - Adds ability to rotate using a touch device

RGL - 3D visualization device system for R using OpenGL
=======================================================

INTRODUCTION
------------
The RGL package is a visualization device system for R, using 
OpenGL as the rendering backend. An rgl device at its core 
is a real-time 3D engine written in C++. It provides an 
interactive viewpoint navigation facility (mouse + wheel support)
and an R programming interface.


LICENSE
-------
The software is released under the GNU Public License. 
See "COPYING" textfile for details.


FEATURES
--------
- portable R Plug-in using OpenGL on MacOSX, Win32 and X11
- R programming interface 
- interactive viewpoint navigation
- automatic data focus
- geometry primitives: 
  points, lines, triangles, quads, texts, point sprites
- high-level geometry:
  surface, spheres
- up to 8 light sources
- alpha-blending (transparency)
- side-dependant fill-mode rendering (dots,wired and filled)
- texture-mapping with mipmapping and environment mapping support
- environmental effects:
  fogging, background sphere
- bounding box with axis ticks marks
- undo operation:
  shapes and light-sources are managed on type stacks,
  where the top-most objects can be pop'ed, or any item specified by
  an identifier can be removed


PLATFORMS
---------
Mac OS X
Windows 2000/XP/Vista
Unix-derivatives


BUILD TOOLS
-----------
R recommended tools (gcc toolchain)


REQUIREMENTS
------------
Windowing System (osx/carbon, unix/x11 or win32)
OpenGL Library 
OpenGL Utility Library (GLU)

Installation on Debian:
-----------------------
aptitude install libgl1-mesa-dev libglu1-mesa-dev


OPTIONS
-------
libpng library version 1.0.4 or newer (pixmap import/export support)
freetype library for resizable anti-aliased fonts


BUILDING/INSTALLING FROM SOURCE PACKAGE
---------------------------------------
The R build tool is the primary tool to build the RGL package.


BUILDING ON MICROSOFT WINDOWS
-----------------------------

Libpng support:

Make sure bitmap dll has been built as described in the 
R Build Instructions for Windows.

These two files are needed:

%R_HOME%\src\gnuwin32\bitmap\libpng\libpng.a
%R_HOME%\bin\Rzlib.dll (or %R_HOME%\src\extra\zlib\libz.a, in older R versions)

Freetype support:

You need to obtain a Windows build of the Freetype library, version 2.3.5 or better.
A version is available at http://gnuwin32.sourceforge.net/packages/freetype.htm.
Set the environment variable LIB_FREETYPE to give the full path to the
install directory.

BUILDING ON UNIX-STYLE OS (MacOS X, Linux, FreeBSD, ... ) 
---------------------------------------------------------

The build is controlled by an autoconf configure script.
You provide the options through the R CMD build/INSTALL command

  e.g. 
    $ R CMD INSTALL --configure-args="<configure args...>" rgl


  COMMON UNIX-STYLE OS OPTIONS
  ----------------------------

  --with-gl-includes=<path>
    GL C header files include path

  --with-gl-libraries=<path>
    GL library linkage path

  --with-gl-prefix=<libprefix>
    GL library prefix (e.g. Mesa)
  
  --disable-libpng
    disable libpng support

  --with-libpng-prefix=<install location>
    force LibPNG library install prefix (e.g. /usr/local)

  --disable-libpng-config
    explicitly disable libpng-config
  
  --disable-libpng-dynamic
    use static libpng library
    
You may find that your distro doesn't have all necessary development
libraries installed:  read the error messages for hints!  This line
has been reported to be sufficient on FC 5 or 6:

 yum install mesa-libGL-devel mesa-libGLU-devel libpng-devel



  MAC OS X OPTIONS
  ----------------

  --disable-cocoa
    force a X11 port


  X11 WINDOWING SYSTEM OPTIONS
  ----------------------------

  --x-includes=<path>
    X11 C header files include path

  --x-libraries=<path>
    X11 library linkage path


FIRST DEMOS: LOADING LIBRARY AND RUNNING DEMONSTRATIONS
-------------------------------------------------------

> library(rgl)
> demo(rgl)


CREDITS
-------
Daniel Adler <[email protected]>
Duncan Murdoch <[email protected]>
Oleg Nenadic <[email protected]>
Simon Urbanek <[email protected]>
Ming Chen <[email protected]>
Albrecht Gebhardt <[email protected]>
Ben Bolker <[email protected]>
Gabor Csardi <[email protected]>
Adam Strzelecki <[email protected]>
Alexander Senger <[email protected]>

WEBSITE
-------
http://rgl.neoscientists.org

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  • R 11.7%
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