fix(load): Output None when the load value is zero

This makes it a little easier to use when creating lots of programs at once.

honeybee_grasshopper_energy/json/HB_Equipment.json

@@ -1,5 +1,5 @@
 {
-  "version": "1.8.0", 
+  "version": "1.8.1", 
   "nickname": "Equipment", 
   "outputs": [
     [
@@ -64,7 +64,7 @@
     }
   ], 
   "subcategory": "3 :: Loads", 
-  "code": "\ntry:  # import the core honeybee dependencies\n    from honeybee.typing import clean_and_id_ep_string, clean_ep_string\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import honeybee:\\n\\t{}'.format(e))\n\ntry:\n    from honeybee_energy.load.equipment import ElectricEquipment, GasEquipment\n    from honeybee_energy.lib.schedules import schedule_by_identifier\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import honeybee_energy:\\n\\t{}'.format(e))\n\ntry:\n    from ladybug_{{cad}}.{{plugin}} import all_required_inputs\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import ladybug_{{cad}}:\\n\\t{}'.format(e))\n\n\nif all_required_inputs(ghenv.Component):\n    # make a default Equipment name if none is provided\n    name = clean_and_id_ep_string('Equipment') if _name_ is None else \\\n        clean_ep_string(_name_)\n\n    # get the schedule\n    if isinstance(_schedule, str):\n        _schedule = schedule_by_identifier(_schedule)\n\n    # get default radiant, latent, and lost fractions\n    radiant_fract_ = radiant_fract_ if radiant_fract_ is not None else 0.0\n    latent_fract_ = latent_fract_ if latent_fract_ is not None else 0.0\n    lost_fract_ = lost_fract_ if lost_fract_ is not None else 0.0\n\n    # create the Equipment object\n    if gas_:\n        equip = GasEquipment(name, _watts_per_area, _schedule,\n                             radiant_fract_, latent_fract_, lost_fract_)\n    else:\n        equip = ElectricEquipment(name, _watts_per_area, _schedule,\n                                  radiant_fract_, latent_fract_, lost_fract_)\n    if _name_ is not None:\n        equip.display_name = _name_", 
+  "code": "\ntry:  # import the core honeybee dependencies\n    from honeybee.typing import clean_and_id_ep_string, clean_ep_string\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import honeybee:\\n\\t{}'.format(e))\n\ntry:\n    from honeybee_energy.load.equipment import ElectricEquipment, GasEquipment\n    from honeybee_energy.lib.schedules import schedule_by_identifier\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import honeybee_energy:\\n\\t{}'.format(e))\n\ntry:\n    from ladybug_{{cad}}.{{plugin}} import all_required_inputs\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import ladybug_{{cad}}:\\n\\t{}'.format(e))\n\n\nif all_required_inputs(ghenv.Component):\n    # make a default Equipment name if none is provided\n    name = clean_and_id_ep_string('Equipment') if _name_ is None else \\\n        clean_ep_string(_name_)\n\n    # get the schedule\n    if isinstance(_schedule, str):\n        _schedule = schedule_by_identifier(_schedule)\n\n    # get default radiant, latent, and lost fractions\n    radiant_fract_ = radiant_fract_ if radiant_fract_ is not None else 0.0\n    latent_fract_ = latent_fract_ if latent_fract_ is not None else 0.0\n    lost_fract_ = lost_fract_ if lost_fract_ is not None else 0.0\n\n    # create the Equipment object\n    if _watts_per_area == 0:\n        equip = None\n    else:\n        if gas_:\n            equip = GasEquipment(name, _watts_per_area, _schedule,\n                                 radiant_fract_, latent_fract_, lost_fract_)\n        else:\n            equip = ElectricEquipment(name, _watts_per_area, _schedule,\n                                      radiant_fract_, latent_fract_, lost_fract_)\n        if _name_ is not None:\n            equip.display_name = _name_", 
   "category": "HB-Energy", 
   "name": "HB Equipment", 
   "description": "Create an Equipment object that can be used to specify equipment usage in a ProgramType.\n-"

honeybee_grasshopper_energy/json/HB_People.json

@@ -1,5 +1,5 @@
 {
-  "version": "1.8.0", 
+  "version": "1.8.1", 
   "nickname": "People", 
   "outputs": [
     [
@@ -50,7 +50,7 @@
     }
   ], 
   "subcategory": "3 :: Loads", 
-  "code": "\ntry:  # import the core honeybee dependencies\n    from honeybee.typing import clean_and_id_ep_string, clean_ep_string\n    from honeybee.altnumber import autocalculate\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import honeybee:\\n\\t{}'.format(e))\n\ntry:\n    from honeybee_energy.load.people import People\n    from honeybee_energy.lib.schedules import schedule_by_identifier\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import honeybee_energy:\\n\\t{}'.format(e))\n\ntry:\n    from ladybug_{{cad}}.{{plugin}} import all_required_inputs\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import ladybug_{{cad}}:\\n\\t{}'.format(e))\n\n\nif all_required_inputs(ghenv.Component):\n    # make a default People name if none is provided\n    name = clean_and_id_ep_string('People') if _name_ is None else \\\n        clean_ep_string(_name_)\n    latent = autocalculate if latent_fraction_ is None else latent_fraction_\n\n    # get the schedules\n    if isinstance(_occupancy_sch, str):\n        _occupancy_sch = schedule_by_identifier(_occupancy_sch)\n    if isinstance(_activity_sch_, str):\n        _activity_sch_ = schedule_by_identifier(_activity_sch_)\n\n    # create the People object\n    people = People(name, _ppl_per_area, _occupancy_sch, _activity_sch_,\n                    latent_fraction=latent)\n    if _name_ is not None:\n        people.display_name = _name_\n", 
+  "code": "\ntry:  # import the core honeybee dependencies\n    from honeybee.typing import clean_and_id_ep_string, clean_ep_string\n    from honeybee.altnumber import autocalculate\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import honeybee:\\n\\t{}'.format(e))\n\ntry:\n    from honeybee_energy.load.people import People\n    from honeybee_energy.lib.schedules import schedule_by_identifier\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import honeybee_energy:\\n\\t{}'.format(e))\n\ntry:\n    from ladybug_{{cad}}.{{plugin}} import all_required_inputs\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import ladybug_{{cad}}:\\n\\t{}'.format(e))\n\n\nif all_required_inputs(ghenv.Component):\n    # make a default People name if none is provided\n    name = clean_and_id_ep_string('People') if _name_ is None else \\\n        clean_ep_string(_name_)\n    latent = autocalculate if latent_fraction_ is None else latent_fraction_\n\n    # get the schedules\n    if isinstance(_occupancy_sch, str):\n        _occupancy_sch = schedule_by_identifier(_occupancy_sch)\n    if isinstance(_activity_sch_, str):\n        _activity_sch_ = schedule_by_identifier(_activity_sch_)\n\n    # create the People object\n    if _ppl_per_area == 0:\n        people = None\n    else:\n        people = People(name, _ppl_per_area, _occupancy_sch, _activity_sch_,\n                        latent_fraction=latent)\n        if _name_ is not None:\n            people.display_name = _name_\n", 
   "category": "HB-Energy", 
   "name": "HB People", 
   "description": "Create a People object that can be used to create a ProgramType or be assigned\ndirectly to a Room.\n-"

honeybee_grasshopper_energy/json/HB_Service_Hot_Water.json

@@ -1,5 +1,5 @@
 {
-  "version": "1.8.0", 
+  "version": "1.8.1", 
   "nickname": "ServiceHotWater", 
   "outputs": [
     [
@@ -57,7 +57,7 @@
     }
   ], 
   "subcategory": "3 :: Loads", 
-  "code": "\ntry:  # import the core honeybee dependencies\n    from honeybee.typing import clean_and_id_ep_string, clean_ep_string\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import honeybee:\\n\\t{}'.format(e))\n\ntry:\n    from honeybee_energy.load.hotwater import ServiceHotWater\n    from honeybee_energy.lib.schedules import schedule_by_identifier\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import honeybee_energy:\\n\\t{}'.format(e))\n\ntry:\n    from ladybug_{{cad}}.{{plugin}} import all_required_inputs\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import ladybug_{{cad}}:\\n\\t{}'.format(e))\n\n\nif all_required_inputs(ghenv.Component):\n    # make a default ServiceHotWater name if none is provided\n    name = clean_and_id_ep_string('ServiceHotWater') if _name_ is None else \\\n        clean_ep_string(_name_)\n\n    # get the schedule\n    if isinstance(_schedule, str):\n        _schedule = schedule_by_identifier(_schedule)\n\n    # get default radiant, latent, and lost fractions\n    _target_temp_ = _target_temp_ if _target_temp_ is not None else 60\n    _sensible_fract_ = _sensible_fract_ if _sensible_fract_ is not None else 0.2\n    _latent_fract_ = _latent_fract_ if _latent_fract_ is not None else 0.05\n\n    # create the ServiceHotWater object\n    hot_water = ServiceHotWater(name, _flow_per_area, _schedule, _target_temp_,\n                                _sensible_fract_, _latent_fract_)\n    if _name_ is not None:\n        hot_water.display_name = _name_", 
+  "code": "\ntry:  # import the core honeybee dependencies\n    from honeybee.typing import clean_and_id_ep_string, clean_ep_string\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import honeybee:\\n\\t{}'.format(e))\n\ntry:\n    from honeybee_energy.load.hotwater import ServiceHotWater\n    from honeybee_energy.lib.schedules import schedule_by_identifier\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import honeybee_energy:\\n\\t{}'.format(e))\n\ntry:\n    from ladybug_{{cad}}.{{plugin}} import all_required_inputs\nexcept ImportError as e:\n    raise ImportError('\\nFailed to import ladybug_{{cad}}:\\n\\t{}'.format(e))\n\n\nif all_required_inputs(ghenv.Component):\n    # make a default ServiceHotWater name if none is provided\n    name = clean_and_id_ep_string('ServiceHotWater') if _name_ is None else \\\n        clean_ep_string(_name_)\n\n    # get the schedule\n    if isinstance(_schedule, str):\n        _schedule = schedule_by_identifier(_schedule)\n\n    # get default radiant, latent, and lost fractions\n    _target_temp_ = _target_temp_ if _target_temp_ is not None else 60\n    _sensible_fract_ = _sensible_fract_ if _sensible_fract_ is not None else 0.2\n    _latent_fract_ = _latent_fract_ if _latent_fract_ is not None else 0.05\n\n    # create the ServiceHotWater object\n    if _flow_per_area == 0:\n        hot_water = None\n    else:\n        hot_water = ServiceHotWater(name, _flow_per_area, _schedule, _target_temp_,\n                                    _sensible_fract_, _latent_fract_)\n        if _name_ is not None:\n            hot_water.display_name = _name_", 
   "category": "HB-Energy", 
   "name": "HB Service Hot Water", 
   "description": "Create an ServiceHotWater object that can be used to specify hot water usage in\na ProgramType.\n-"

honeybee_grasshopper_energy/src/HB Equipment.py

@@ -38,7 +38,7 @@
 
 ghenv.Component.Name = 'HB Equipment'
 ghenv.Component.NickName = 'Equipment'
-ghenv.Component.Message = '1.8.0'
+ghenv.Component.Message = '1.8.1'
 ghenv.Component.Category = 'HB-Energy'
 ghenv.Component.SubCategory = '3 :: Loads'
 ghenv.Component.AdditionalHelpFromDocStrings = '3'
@@ -75,11 +75,14 @@
     lost_fract_ = lost_fract_ if lost_fract_ is not None else 0.0
 
     # create the Equipment object
-    if gas_:
-        equip = GasEquipment(name, _watts_per_area, _schedule,
-                             radiant_fract_, latent_fract_, lost_fract_)
+    if _watts_per_area == 0:
+        equip = None
     else:
-        equip = ElectricEquipment(name, _watts_per_area, _schedule,
-                                  radiant_fract_, latent_fract_, lost_fract_)
-    if _name_ is not None:
-        equip.display_name = _name_
+        if gas_:
+            equip = GasEquipment(name, _watts_per_area, _schedule,
+                                 radiant_fract_, latent_fract_, lost_fract_)
+        else:
+            equip = ElectricEquipment(name, _watts_per_area, _schedule,
+                                      radiant_fract_, latent_fract_, lost_fract_)
+        if _name_ is not None:
+            equip.display_name = _name_

honeybee_grasshopper_energy/src/HB People.py

@@ -43,7 +43,7 @@
 
 ghenv.Component.Name = "HB People"
 ghenv.Component.NickName = 'People'
-ghenv.Component.Message = '1.8.0'
+ghenv.Component.Message = '1.8.1'
 ghenv.Component.Category = 'HB-Energy'
 ghenv.Component.SubCategory = '3 :: Loads'
 ghenv.Component.AdditionalHelpFromDocStrings = "3"
@@ -79,7 +79,10 @@
         _activity_sch_ = schedule_by_identifier(_activity_sch_)
 
     # create the People object
-    people = People(name, _ppl_per_area, _occupancy_sch, _activity_sch_,
-                    latent_fraction=latent)
-    if _name_ is not None:
-        people.display_name = _name_
+    if _ppl_per_area == 0:
+        people = None
+    else:
+        people = People(name, _ppl_per_area, _occupancy_sch, _activity_sch_,
+                        latent_fraction=latent)
+        if _name_ is not None:
+            people.display_name = _name_

honeybee_grasshopper_energy/src/HB Service Hot Water.py

@@ -38,7 +38,7 @@
 
 ghenv.Component.Name = 'HB Service Hot Water'
 ghenv.Component.NickName = 'ServiceHotWater'
-ghenv.Component.Message = '1.8.0'
+ghenv.Component.Message = '1.8.1'
 ghenv.Component.Category = 'HB-Energy'
 ghenv.Component.SubCategory = '3 :: Loads'
 ghenv.Component.AdditionalHelpFromDocStrings = '3'
@@ -75,7 +75,10 @@
     _latent_fract_ = _latent_fract_ if _latent_fract_ is not None else 0.05
 
     # create the ServiceHotWater object
-    hot_water = ServiceHotWater(name, _flow_per_area, _schedule, _target_temp_,
-                                _sensible_fract_, _latent_fract_)
-    if _name_ is not None:
-        hot_water.display_name = _name_
+    if _flow_per_area == 0:
+        hot_water = None
+    else:
+        hot_water = ServiceHotWater(name, _flow_per_area, _schedule, _target_temp_,
+                                    _sensible_fract_, _latent_fract_)
+        if _name_ is not None:
+            hot_water.display_name = _name_