How to model air stratification in an industrial hall?

edit

@David, I'm getting closer (at least, I hope so :) ) but I still have some problems with my E+ measure :

• I don't understand what's the difference between OS measure and E+ measure
• If I add a workspace object, is my measure E+ or OS?
• How do you makeChoiceArgument for thermal spaces? I've seen that you already did it in several OS measures but I don't know how to deal with it in E+ measure. (You'll see I used one of your measure and I tried to adapt it for E+ measure ^^ but maybe I'm completely mistaken )

Could you help me? :)

Here is my code :

Thank you very much for your help

    # see the URL below for information on how to write OpenStudio measures
# http://nrel.github.io/OpenStudio-user-documentation/reference/measure_writing_guide/

# start the measure
class ChangeTheRoomType < OpenStudio::Ruleset::WorkspaceUserScript

# human readable name
def name
return "ChangeTheRoomType"
end

# human readable description
def description
return "Take stratification into account"
end

# human readable description of modeling approach
def modeler_description
return "By changing the room type to constant gradient (vertical)"
end

def arguments(workspace)
args = OpenStudio::Ruleset::OSArgumentVector.new

#----------------------THERMAL ZONE INTO ARGUMENTS------------------------------------------
#populate choice argument for thermal zones in the model
zone_handles = OpenStudio::StringVector.new
zone_display_names = OpenStudio::StringVector.new

#putting zone names into hash
zone_hash = {}
workspace.getObjectsByType("Zone".to_IddObjectType) do |zone|
  zone_hash[zone.name.to_s] = zone
end

#looping through sorted hash of zones
zone_hash.sort.map do |zone_name, zone|
  zone_handles << zone.handle.to_s
  zone_display_names << zone_name
end

#make an argument for zones
zone = OpenStudio::Ruleset::OSArgument::makeChoiceArgument("zone", zone_handles, zone_display_names, true)
zone.setDisplayName("Choose Thermal Zones to add zone ventilation to.")
args << zone
#----------------------------NAME ARGUMENT------------------------------------------
nameRoomAirModel = OpenStudio::Ruleset::OSArgument::makeStringArgument('nameRoomAirModel', true)
nameRoomAirModel.setDisplayName('Name the pattern')
args << nameRoomAirModel

#-------------------------------TEMPERATURE INPUT INTO ARGUMENTS -------------------------------
thermOffset = OpenStudio::Ruleset::OSArgument::makeDoubleArgument('thermOffset',true)
thermOffset.setDisplayName('thermostat Offset')
thermOffset.setDefaultValue(0.0)
args << thermOffset

returnAirOffset = OpenStudio::Ruleset::OSArgument::makeDoubleArgument('returnAirOffset',true)
returnAirOffset.setDisplayName('return Air Offset')
returnAirOffset.setDefaultValue(0.0)
args<<returnAirOffset

exhaustAirOffset = OpenStudio::Ruleset::OSArgument::makeDoubleArgument('exhaustAirOffset',true)
exhaustAirOffset.setDisplayName('exhaust Air Offset')
exhaustAirOffset.setDefaultValue(0.0)
args << exhaustAirOffset

return args
end 

#When the measure is run    
def run(workspace,runner,user_arguments)
super(workspace, runner, user_arguments)

# errors management
if not runner.validateUserArguments(argumentents(workspace),user_arguments)
    return false
end

#assign to variables
nameRoomAirModel=runner.getStringArgumentValue('nameRoomAirModel',user_arguments)
zone=runner.getOptionalWorkspaceObjectChoiceValue('zone',user_arguments, workspace)
thermOffset=runner.getDoubleArgumentValue('thermOffset', user_arguments)
returnAirOffset=runner.getDoubleArgumentValue('returnAirOffset',user_arguments)
exhaustAirOffset=runner.getDoubleArgumentValue('exhaustAirOffset',user_arguments)

#Array to hold new IDF Objects = RoomAirModelType here
string_RoomAirModelType=[]

#this instruction doesnt use the arguments, it s a test
string_RoomAirModelType << "
RoomAir:TemperaturePattern:UserDefined,
#{nameRoomAirModel} ,   ! Name
#{zone} ,               ! Zone Name (thermal zone) = user choice
AllwaysOn,          ! Availability Schedule Name = integer used need to be the same as the RoomAir:TemperaturePattern:ConstantGradient (here is 1)
Roomair Pattern 1;      ! Pattern Control Schedule Name"

#Instruction in EP
string_RoomAirModelGradient=[]
#this instruction doesnt use the arguments, it s a test
string_RoomAirModelGradient << "
RoomAir:TemperaturePattern:ConstantGradient,
StratProduction,        !- Name
1,                      !- Control Integer for Pattern Control Schedule Name
#{thermOffset},         !- Thermostat Offset {deltaC}
#{returnAirOffset} ,    !- Return Air Offset {deltaC ...