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https://github.com/IfcOpenShell/IfcOpenShell.git
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95 lines
3.5 KiB
Python
95 lines
3.5 KiB
Python
# IfcSverchok - IFC Sverchok extension
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# Copyright (C) 2020, 2021, 2022 Dion Moult <dion@thinkmoult.com>
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#
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# This file is part of IfcSverchok.
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#
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# IfcSverchok is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# IfcSverchok is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with IfcSverchok. If not, see <http://www.gnu.org/licenses/>.
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import bpy
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import ifcopenshell
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import ifcsverchok.helper
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from ifcsverchok.ifcstore import SvIfcStore
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from bpy.props import StringProperty
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from sverchok.node_tree import SverchCustomTreeNode
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from sverchok.data_structure import updateNode, ensure_min_nesting, flatten_data
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class SvIfcReadEntity(
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bpy.types.Node, SverchCustomTreeNode, ifcsverchok.helper.SvIfcCore
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):
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bl_idname = "SvIfcReadEntity"
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bl_label = "IFC Read Entity"
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entity: StringProperty(name="Entity Id", update=updateNode)
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current_ifc_class: StringProperty(name="current_ifc_class")
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def sv_init(self, context):
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self.inputs.new("SvStringsSocket", "entity").prop_name = "entity"
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self.outputs.new("SvStringsSocket", "id")
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self.outputs.new("SvStringsSocket", "is_a")
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def draw_buttons(self, context, layout):
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layout.operator(
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"node.sv_ifc_tooltip", text="", icon="QUESTION", emboss=False
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).tooltip = (
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"Decompose an IfcEntity into its attributes. Takes one entity id as input"
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)
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def process(self):
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self.sv_input_names = ["entity"]
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entity_id = flatten_data(self.inputs["entity"].sv_get(), target_level=1)
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if not entity_id[0]:
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return
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if len(entity_id) > 1:
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raise Exception("Only one entity can be read at a time")
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self.file = SvIfcStore.get_file()
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try:
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entity = self.file.by_id(entity_id[0])
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except Exception as e:
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raise Exception("Instance with id {} not found".format(entity_id), e)
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if entity:
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ifc_class = entity.is_a()
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file = SvIfcStore.get_file()
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if file:
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schema_name = file.wrapped_data.schema
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else:
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schema_name = "IFC4"
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self.schema = ifcopenshell.ifcopenshell_wrapper.schema_by_name(schema_name)
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self.entity_schema = self.schema.declaration_by_name(ifc_class)
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if ifc_class != self.current_ifc_class:
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self.generate_outputs(ifc_class)
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self.outputs["id"].sv_set([entity.id()])
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self.outputs["is_a"].sv_set([entity.is_a()])
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for i in range(0, self.entity_schema.attribute_count()):
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name = self.entity_schema.attribute_by_index(i).name()
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self.outputs[name].sv_set([entity[i]])
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def generate_outputs(self, ifc_class):
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while len(self.outputs) > 2:
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self.outputs.remove(self.outputs[-1])
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for i in range(0, self.entity_schema.attribute_count()):
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name = self.entity_schema.attribute_by_index(i).name()
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self.outputs.new("SvStringsSocket", name).prop_name = name
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self.current_ifc_class = ifc_class
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def register():
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bpy.utils.register_class(SvIfcReadEntity)
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def unregister():
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bpy.utils.unregister_class(SvIfcReadEntity)
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