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IfcOpenShell/src/ifcsverchok/nodes/ifc/create_entity.py
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2022-09-04 23:36:30 +02:00

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4.8 KiB
Python

# IfcSverchok - IFC Sverchok extension
# Copyright (C) 2020, 2021 Dion Moult <dion@thinkmoult.com>
#
# This file is part of IfcSverchok.
#
# IfcSverchok is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# IfcSverchok is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with IfcSverchok. If not, see <http://www.gnu.org/licenses/>.
import bpy
import ifcopenshell
import ifcsverchok.helper
from bpy.props import StringProperty
from sverchok.node_tree import SverchCustomTreeNode
from sverchok.data_structure import updateNode
class SvIfcCreateEntity(bpy.types.Node, SverchCustomTreeNode, ifcsverchok.helper.SvIfcCore):
bl_idname = "SvIfcCreateEntity"
bl_label = "IFC Create Entity"
file: StringProperty(name="file", update=updateNode)
ifc_class: StringProperty(name="ifc_class", update=updateNode)
current_ifc_class: StringProperty(name="current_ifc_class")
def sv_init(self, context):
self.inputs.new("SvStringsSocket", "file").prop_name = "file"
self.inputs.new("SvStringsSocket", "ifc_class").prop_name = "ifc_class"
self.outputs.new("SvStringsSocket", "file")
self.outputs.new("SvStringsSocket", "entity")
def process(self):
self.sv_input_names = ["file", "ifc_class"]
ifc_class = self.inputs["ifc_class"].sv_get()[0][0]
if ifc_class:
file = self.inputs["file"].sv_get()[0][0]
if file:
schema_name = file.wrapped_data.schema
else:
schema_name = "IFC4"
self.schema = ifcopenshell.ifcopenshell_wrapper.schema_by_name(schema_name)
self.entity_schema = self.schema.declaration_by_name(ifc_class)
if ifc_class != self.current_ifc_class:
self.generate_inputs(ifc_class)
try:
for i in range(0, len(self.inputs)):
input = self.inputs[i].sv_get()
except:
# This occurs when a blender save file is reloaded
self.generate_inputs(ifc_class)
for i in range(0, self.entity_schema.attribute_count()):
self.sv_input_names.append(self.entity_schema.attribute_by_index(i).name())
super().process()
def generate_inputs(self, ifc_class):
while len(self.inputs) > 2:
self.inputs.remove(self.inputs[-1])
for i in range(0, self.entity_schema.attribute_count()):
name = self.entity_schema.attribute_by_index(i).name()
setattr(SvIfcCreateEntity, name, StringProperty(name=name))
self.inputs.new("SvStringsSocket", name).prop_name = name
self.current_ifc_class = ifc_class
def process_ifc(self, file, ifc_class, *attributes):
entity = file.create_entity(ifc_class)
for i in range(0, len(entity)):
try:
value = attributes[i]
if isinstance(value, str) and value == "":
value = None
except:
value = None
if value is None and entity.is_a("IfcRoot") and i == 0:
value = ifcopenshell.guid.new()
if value is not None and entity.attribute_name(i) == "Representation":
value = file.createIfcProductDefinitionShape(None, None, Representations = [value])
#product_shape = ifcopenshell.api.run("geometry.assign_representation", file, product = , representation = value)
if value is not None:
value = self.cast_value(self.entity_schema.attribute_by_index(i), value)
try:
entity[i] = value
except:
raise Exception(
"The IFC class {} requires a valid value for {} - you provided {}".format(
ifc_class, entity.attribute_name(i), value
)
)
self.outputs["file"].sv_set([[file]])
self.outputs["entity"].sv_set([[entity]])
def cast_value(self, attribute, value):
data_type = self.get_attribute_data_type(attribute.type_of_attribute())
if data_type == "integer":
value = int(value)
return value
def get_attribute_data_type(self, data_type):
if hasattr(data_type, "declared_type"):
return self.get_attribute_data_type(data_type.declared_type())
return data_type
def register():
bpy.utils.register_class(SvIfcCreateEntity)
def unregister():
bpy.utils.unregister_class(SvIfcCreateEntity)