Create animated gif files from simulation results generated by SpatialSimulator

spatial2gif.sh

spatial2gif() {
  # Create animated gif files from simulation results generated by [SpatialSimulator](https://github.com/funasoul/docker-spatialsim)
  local width="400"
  local opt_resize="${width}"
  # -h, --help options
  if [[ "$1" = "-h" || "$1" = "-help" || "$1" = "--help" || "$1" = "--h" ]]; then
    echo "Usage: $0 [width] [height]"
    echo "  Create animated GIF files from simulation results generated by"
    echo "  SpatialSimulator."
    echo "    - [width]  ... width  of animated GIF file (default: $width)"
    echo "    - [height] ... height of animated GIF file (default: none)"
    echo "                   If only width is specified, height is automatically"
    echo "                   calculated from original image files."
    return
  fi
  # accept width as first argv, height as second argv (both optional)
  if [ $# -gt 1 ]; then
    width=$1
    height=$2
    opt_resize="${width}x${height}"
  elif [ $# = 1 ]; then
    width=$1
    opt_resize="${width}"
  fi
  local model=$(basename $PWD)
  if [ ! -d img ]; then
    echo "No img/ dir in this directory. Please chdir to a directory which contains img/ directory."
    echo "(ex.) cd ~/git/docker-spatialsim/result/sam2d/"
  else
    echo "Converting simulation results of $model to animated gif ..."
    foreach i (img/*~img/geometry*)
      local species=$(basename $i)
      echo -ne "  Processing species $species #####             ( 33%)\r"
      convert -delay 10 -loop 0 $i/????.png ${species}.gif
      echo -ne "  Processing species $species ##########        ( 66%)\r"
      convert ${species}.gif -coalesce tmp_${species}.gif
      echo -ne "  Processing species $species ###############   (100%)"
      convert tmp_${species}.gif -resize $opt_resize ${model}_${species}.gif
      rm -f ${species}.gif tmp_${species}.gif
      echo " --> ${model}_${species}.gif"
    end
  fi
}