Improved the management of the Anaconda environment for Rviewer.

Diags/Rviewer/Rviewer.bash

@@ -3,7 +3,11 @@
 # Set the right Python 3 Anaconda environment
 #
 if [ -f ~/anaconda3/bin/activate ] ; then
-    echo "Loading Anaconda"
+    if [ ! -d ~/anaconda3/envs/Rviewer ] ; then
+	echo "Installing Anaconda packages for Rviewer"
+	conda create -y -n Rviewer mpi4py numba astropy netcdf4 matplotlib shapely scipy cartopy
+    fi
+    echo "Loading Anaconda packages"
     source ~/anaconda3/bin/activate
     conda activate Rviewer
 fi

Diags/Rviewer/install_Environment.bash

-#!/bin/bash
-#
-#########################################
-#
-# Script to build and maintain en environment to run
-# the python code in this directory. We verify that
-# all needed packages are available.
-# This is based on the anaconda python system : https://www.anaconda.com/distribution/
-#
-# Usage : source Environment
-#
-#########################################
-#
-# Functions
-#
-
-conda create -y -n Rviewer mpi4py numba astropy netcdf4 matplotlib shapely scipy cartopy
-