This is a resubmission. In this version I have:

• added a init.c file to register the c++-functions

• new functions (coordinate transformation and 3D drawing)
• improved vignettes

• Manjaro Linux 64-bit, R 3.3.2
• win-builder (release+devel)
• Rhub: Debian Linux, R-devel, GCC ASAN/UBSAN Ubuntu Linux 16.04 LTS, R-release, GCC
  Fedora Linux, R-devel, clang, gfortran

• os: linux
  • dist: precise
  • sudo: false
• os: linux
  • dist: trusty
  • sudo: required
  • env: R_CODECOV=true
  • r_check_args: "--use-valgrind"
• os: osx
  • osx_image: xcode8.2
• os: osx
  • osx_image: xcode7.3

There were no ERRORs or WARNINGs. I see two NOTEs:

• Possibly mis-spelled words in DESCRIPTION:
  subunits (9:221)
  toolset (9:16)
  workflow (9:286)
• Examples with CPU or elapsed time > 5s
  user system elapsed
  posdeclist 13.968 0.028 14.028

I think both NOTEs are negligible, because they don"t interfere with the functionality of the package in any way.