If MEDFIELDCREATOR is correctly installed and you have defined the
MEDFIELDCREATOR_ROOT_DIR
variable to point your installation path,
you can run the Salome GUI via a command like (Note that we use the visu module
too):
$KERNEL_ROOT_DIR/bin/salome/runSalome
modules=MED,MEDFIELDCREATOR,VISU
logger=1
A window containing MED, MEDFIELDCREATOR and VISU should appears.