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IfcType Filter for ifctiler #190

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IfcType Filter for ifctiler #190

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10 changes: 7 additions & 3 deletions py3dtilers/IfcTiler/IfcTiler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,10 @@ def __init__(self):
dest='with_BTH',
action='store_true',
help='Adds a Batch Table Hierarchy when defined')
self.parser.add_argument('--class_filter',
nargs='*',
help='Select IfcType to tile'
)

def get_output_dir(self):
"""
Expand All @@ -30,15 +34,15 @@ def get_output_dir(self):
else:
return self.args.output_dir

def from_ifc(self, grouped_by, with_BTH):
def from_ifc(self, grouped_by, with_BTH, class_filter):
"""
:return: a tileset.
"""
objects = []
for ifc_file in self.files:
print("Reading " + str(ifc_file))
if grouped_by == 'IfcTypeObject':
pre_tileset = IfcObjectsGeom.retrievObjByType(ifc_file, with_BTH)
pre_tileset = IfcObjectsGeom.retrievObjByType(ifc_file, with_BTH, class_filter)
elif grouped_by == 'IfcGroup':
pre_tileset = IfcObjectsGeom.retrievObjByGroup(ifc_file, with_BTH)
elif grouped_by == 'IfcSpace':
Expand All @@ -62,7 +66,7 @@ def main():
ifc_tiler = IfcTiler()
ifc_tiler.parse_command_line()
args = ifc_tiler.args
tileset = ifc_tiler.from_ifc(args.grouped_by, args.with_BTH)
tileset = ifc_tiler.from_ifc(args.grouped_by, args.with_BTH, args.class_filter)

if tileset is not None:
tileset.write_as_json(ifc_tiler.get_output_dir())
Expand Down
33 changes: 16 additions & 17 deletions py3dtilers/IfcTiler/ifcObjectGeom.py
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Original file line number Diff line number Diff line change
Expand Up @@ -177,7 +177,7 @@ def create_batch_table_extension(extension_name, ids, objects):
return None

@staticmethod
def retrievObjByType(path_to_file, with_BTH):
def retrievObjByType(path_to_file, with_BTH,class_filter):
"""
:param path: a path to a directory

Expand All @@ -187,28 +187,27 @@ def retrievObjByType(path_to_file, with_BTH):

buildings = ifc_file.by_type('IfcBuilding')
dictObjByType = dict()
_ = ifc_file.by_type('IfcSlab')
i = 1

for building in buildings:
elements = ifcopenshell.util.element.get_decomposition(building)
nb_element = str(len(elements))
logging.info(nb_element + " elements to parse in building :" + building.GlobalId)
for element in elements:
start_time = time.time()
logging.info(str(i) + " / " + nb_element)
logging.info("Parsing " + element.GlobalId + ", " + element.is_a())
obj = IfcObjectGeom(element, with_BTH=with_BTH)
if obj.hasGeom():
if not (element.is_a() + building.GlobalId in dictObjByType):
dictObjByType[element.is_a() + building.GlobalId] = IfcObjectsGeom()
if obj.material:
obj.material_index = dictObjByType[element.is_a() + building.GlobalId].get_material_index(obj.material)
else:
obj.material_index = 0
dictObjByType[element.is_a() + building.GlobalId].append(obj)
logging.info("--- %s seconds ---" % (time.time() - start_time))
i = i + 1
if(not(class_filter) or element.is_a() in class_filter):
start_time = time.time()
logging.info(str(i) + " / " + nb_element)
logging.info("Parsing " + element.GlobalId + ", " + element.is_a())
obj = IfcObjectGeom(element, with_BTH=with_BTH)
if obj.hasGeom():
if not (element.is_a() + building.GlobalId in dictObjByType):
dictObjByType[element.is_a() + building.GlobalId] = IfcObjectsGeom()
if obj.material:
obj.material_index = dictObjByType[element.is_a() + building.GlobalId].get_material_index(obj.material)
else:
obj.material_index = 0
dictObjByType[element.is_a() + building.GlobalId].append(obj)
logging.info("--- %s seconds ---" % (time.time() - start_time))
i = i + 1
return dictObjByType

@staticmethod
Expand Down