Updating view3

modified:   generate_eps

scripts/view3/generate_eps

 #!/bin/bash
 
+echo "view3 produces a series of XY slices  a different z locations."
+
+function print_the_help {
+  echo "USAGE: $0 <PRIM_FILE>  "
+  echo "  OPTIONS: "
+  echo "            -t,--tag           filename tag (default: view1)"
+  exit 
+}
+
+FILE_TAG="view2"
+INPUT_FILE="g4_0000.prim"
+
+
+POSITIONAL=()
+while [[ $# -gt 0 ]]
+do
+  key="$1"
+
+  case $key in
+    -h|--help)
+      shift # past argument
+      print_the_help
+      ;;
+    -t|--tag)
+      FILE_TAG="$2"
+      shift # past argument
+      shift # past value
+      ;;
+    -i|--input)
+      INPUT_FILE="$2"
+      shift # past argument
+      shift # past value
+      ;;
+    *)    # unknown option
+      #POSITIONAL+=("$1") # save it in an array for later
+      echo "unknown option $1"
+      print_the_help
+      shift # past argument
+      ;;
+  esac
+done
+set -- "${POSITIONAL[@]}" # restore positional parameters
+
 # units are mm
-dawncut 0 0 -1 -1500 $1 view3.prim 
-dawn  view3.prim 
-ps2pdf view3.eps view3.pdf
-pdftoppm view3.pdf view3 -png -singlefile
+dawncut 0 0 -1 -1500 ${INPUT_FILE} ${FILE_TAG}.prim 
+dawn -d ${FILE_TAG}.prim 
+ps2pdf ${FILE_TAG}.eps ${FILE_TAG}.pdf
+pdftoppm ${FILE_TAG}.pdf ${FILE_TAG} -png -singlefile
 
 
 #https://geant4.kek.jp/~tanaka/DAWN/About_DAWNCUT.html