def construction_from_idf(construction_idf, output_file):
"""Translate a Construction IDF file to a honeybee JSON as an array of constructions.
\b
Args:
construction_idf: Full path to a Construction IDF file. Only the constructions
and materials in this file will be extracted.
"""
try:
# re-serialize the Constructions to Python
opaque_constrs = OpaqueConstruction.extract_all_from_idf_file(construction_idf)
win_constrs = WindowConstruction.extract_all_from_idf_file(construction_idf)
# create the honeybee dictionaries
hb_obj_list = []
for constr in opaque_constrs[0]:
hb_obj_list.append(constr.to_dict())
for constr in win_constrs[0]:
hb_obj_list.append(constr.to_dict())
# write out the JSON file
output_file.write(json.dumps(hb_obj_list))
except Exception as e:
_logger.exception('Construction translation failed.\n{}'.format(e))
sys.exit(1)
else:
sys.exit(0)
def test_window_construction_init_from_idf_file():
"""Test the initalization of WindowConstruction from file."""
lbnl_window_idf_file = './tests/idf/GlzSys_Triple Clear_Avg.idf'
glaz_constrs, glaz_mats = WindowConstruction.extract_all_from_idf_file(
lbnl_window_idf_file)
assert len(glaz_mats) == 2
glaz_constr = glaz_constrs[0]
constr_str = glaz_constr.to_idf()
mat_str = [mat.to_idf() for mat in glaz_constr.unique_materials]
new_glaz_constr = WindowConstruction.from_idf(constr_str, mat_str)
new_constr_str = new_glaz_constr.to_idf()
assert glaz_constr.name == new_glaz_constr.name == 'GlzSys_5'
assert glaz_constr.u_factor == new_glaz_constr.u_factor == \
pytest.approx(1.75728, rel=1e-2)
assert glaz_constr.thickness == new_glaz_constr.thickness == \
pytest.approx(0.0425, rel=1e-2)
assert constr_str == new_constr_str
import os
# empty dictionaries to hold idf-loaded materials and constructions
_idf_opaque_materials = {}
_idf_window_materials = {}
_idf_opaque_constructions = {}
_idf_window_constructions = {}
# load materials and constructions from the default and user-supplied files
cur_dir = os.path.dirname(__file__)
construction_lib = os.path.join(cur_dir, 'library', 'constructions')
for f in os.listdir(construction_lib):
f_path = os.path.join(construction_lib, f)
if os.path.isfile(f_path) and f_path.endswith('.idf'):
constructions, materials = OpaqueConstruction.extract_all_from_idf_file(
f_path)
for mat in materials:
mat.lock()
_idf_opaque_materials[mat.name] = mat
for cnstr in constructions:
cnstr.lock()
_idf_opaque_constructions[cnstr.name] = cnstr
constructions, materials = WindowConstruction.extract_all_from_idf_file(
f_path)
for mat in materials:
mat.lock()
_idf_window_materials[mat.name] = mat
for cnstr in constructions:
cnstr.lock()
_idf_window_constructions[cnstr.name] = cnstr