def test_window_to_from_standards_dict():
"""Test the initialization of OpaqueConstruction objects from standards gem."""
filename = './tests/standards/OpenStudio_Standards_materials.json'
if filename:
with open(filename, 'r') as f:
data_store = json.load(f)
standards_dict = {
"name":
"U 0.19 SHGC 0.20 Trp LoE Film (55) Bronze 6mm/13mm Air",
"intended_surface_type":
"ExteriorWindow",
"standards_construction_type":
"Metal framing (all other)",
"insulation_layer":
None,
"skylight_framing":
None,
"materials":
["BRONZE 6MM", "AIR 13MM", "COATED POLY-55", "AIR 13MM", "CLEAR 3MM"]
}
glaz_constr = WindowConstruction.from_standards_dict(
standards_dict, data_store)
assert glaz_constr.name == 'U 0.19 SHGC 0.20 Trp LoE Film (55) Bronze 6mm/13mm Air'
assert glaz_constr.r_value == pytest.approx(0.645449, rel=1e-2)
assert glaz_constr.u_value == pytest.approx(1.549307, rel=1e-2)
assert glaz_constr.u_factor == pytest.approx(1.2237779, rel=1e-2)
assert glaz_constr.r_factor == pytest.approx(0.817141, rel=1e-2)
def test_window_to_from_standards_dict():
"""Test the initialization of OpaqueConstruction objects from standards gem."""
standards_dict = {
"name": "U 0.19 SHGC 0.20 Trp LoE Film (55) Bronze 6mm/13mm Air",
"intended_surface_type": "ExteriorWindow",
"materials": [
"BRONZE 6MM",
"AIR 13MM",
"COATED POLY-55",
"AIR 13MM",
"CLEAR 3MM"]}
glaz_constr = WindowConstruction.from_standards_dict(standards_dict)
assert glaz_constr.name == 'U 0.19 SHGC 0.20 Trp LoE Film (55) Bronze 6mm/13mm Air'
assert glaz_constr.r_value == pytest.approx(0.645449, rel=1e-2)
assert glaz_constr.u_value == pytest.approx(1.549307, rel=1e-2)
assert glaz_constr.u_factor == pytest.approx(1.2237779, rel=1e-2)
assert glaz_constr.r_factor == pytest.approx(0.817141, rel=1e-2)
def window_construction_by_identifier(construction_identifier):
"""Get an window construction from the library given the construction identifier.
Args:
construction_identifier: A text string for the identifier of the construction.
"""
try: # see if the construction has already been loaded to a Python object
return _window_constructions[construction_identifier]
except KeyError: # construction likely needs to be loaded from standards data
try:
_constr_dict = _window_constr_standards_dict[construction_identifier]
except KeyError: # construction is nowhere to be found; raise an error
raise ValueError(
'"{}" was not found in the window energy construction library.'.format(
construction_identifier))
# create the Python object from the standards gem dictionary
_constr_obj = WindowConstruction.from_standards_dict(_constr_dict)
_constr_obj.lock()
_window_constructions[construction_identifier] = _constr_obj # load faster next time
return _constr_obj