Merge elements with same GUID or TAG

Z by Zanoni on 2 Feb 2024, edited 7 Feb 2024 #

It's possible to merge elements with the same GUID or TAG?

I tried using Patch Merge Duplicate Types (https://blenderbim.org/docs-python/autoapi/ifcpatch/recipes/MergeDuplicateTypes/index.html) but when I open my ifc file in BIMcollab exists more than 1 element with the same TAG.

A by Andrej730 on 5 Feb 2024 #

Do you have some example file? Your code should merge them fine, see the example below.


import ifcopenshell

import ifcpatch

ifc_file = ifcopenshell.file()


guid = ifcopenshell.guid.new()


# merge by global id

ifc_file.createIfcWallType(GlobalId=guid)

ifc_file.createIfcWallType(GlobalId=guid)

ifc_file.createIfcWallType(GlobalId=guid)

print(len(ifc_file.by_type("IfcWallType"))) # 2

ifcpatch.execute({"input": None, "file": ifc_file, "recipe": "MergeDuplicateTypes", "arguments": ["GlobalId"]})

print(len(ifc_file.by_type("IfcWallType"))) # 1


# merge by tag

tag = "test tag"

ifc_file.createIfcBeamType(Tag=tag)

ifc_file.createIfcBeamType(Tag=tag)

print(len(ifc_file.by_type("IfcBeamType"))) # 2

ifcpatch.execute({"input": None, "file": ifc_file, "recipe": "MergeDuplicateTypes", "arguments": []})

print(len(ifc_file.by_type("IfcBeamType"))) # 1

Z by Zanoni on 5 Feb 2024 #

Here is an example. I zipped the file so I could upload it.

Some elements with the same GUID:

1E1yvzyVb0LAZDdant$cp5

1E1yvzyVb0LAZDdant$cp6

1E1yvzyVb0LAZDdant$cpH

1E1yvzyVb0LAZDdant$cpi

1E1yvzyVb0LAZDdant$cpj

1E1yvzyVb0LAZDdant$cpm

1E1yvzyVb0LAZDdant$cpn

1E1yvzyVb0LAZDdant$cpo

1E1yvzyVb0LAZDdant$cpp

1E1yvzyVb0LAZDdant$cpR

1E1yvzyVb0LAZDdant$cpz

B by brunopostle on 5 Feb 2024 #

@Zanoni said:

Some elements with the same GUID:

1E1yvzyVb0LAZDdant$cp5

1E1yvzyVb0LAZDdant$cp6

1E1yvzyVb0LAZDdant$cpH

1E1yvzyVb0LAZDdant$cpi

1E1yvzyVb0LAZDdant$cpj

1E1yvzyVb0LAZDdant$cpm

1E1yvzyVb0LAZDdant$cpn

1E1yvzyVb0LAZDdant$cpo

1E1yvzyVb0LAZDdant$cpp

1E1yvzyVb0LAZDdant$cpR

1E1yvzyVb0LAZDdant$cpz

These are all different GUIDs.

Z by Zanoni on 5 Feb 2024 #

@brunopostle In each guid informed there are 4 elements...

1E1yvzyVb0LAZDdant$cp5 - There are 4 elements

1E1yvzyVb0LAZDdant$cp6 – There are 4 elements

.....

A by Andrej730 on 7 Feb 2024, edited 7 Feb 2024 #

All those guids are not types but occurrences, MergeDuplicateTypes merges only types. Though it does merge types of those elements if they have matching guids - e.g. 3694759, 3480919, 2388844, 359263 (guid 1E1yvzyVb0LAZDdant$cpj) IfcWallStandardCases are pointing to different types with the same guid 0utCMpdeTCJOHnXCC6IWFD and all those types are merged by ifcpatch.


import ifcopenshell

import ifcpatch


filepath = r"duplicates - Copy.ifc"

ifc_file = ifcopenshell.open(filepath)


def get_elements_by_guid(guids):

    elements_by_guid = dict()

    for element in ifc_file:

        guid = getattr(element, "GlobalId", None)

        if guid in guids:

            elements_by_guid.setdefault(guid, list()).append(element)

    return elements_by_guid


for guid, elements in get_elements_by_guid(guids).items():

    print(f"Found elements by {guid}: {len(elements)}")

    for elem in elements:

        print(f"\t{elem}")


Found elements by 1E1yvzyVb0LAZDdant$cpz: 4

        #4549931=IfcOpeningElement('1E1yvzyVb0LAZDdant$cpz',#3691594,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8450422',$,'Opening',#4549929,#4549930,$)

        #3531688=IfcOpeningElement('1E1yvzyVb0LAZDdant$cpz',#3479074,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8450422',$,'Opening',#3531686,#3531687,$)

        #2637057=IfcOpeningElement('1E1yvzyVb0LAZDdant$cpz',#2337713,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8450422',$,'Opening',#2637048,#2637056,$)

        #1021576=IfcOpeningElement('1E1yvzyVb0LAZDdant$cpz',#275834,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8450422',$,'Opening',#1021567,#1021575,$)

Found elements by 1E1yvzyVb0LAZDdant$cpH: 4

        #4549699=IfcOpeningElement('1E1yvzyVb0LAZDdant$cpH',#3691594,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8450422',$,'Opening',#4549697,#4549698,$)

        #3531708=IfcOpeningElement('1E1yvzyVb0LAZDdant$cpH',#3479074,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8450422',$,'Opening',#3531706,#3531707,$)

        #2696430=IfcOpeningElement('1E1yvzyVb0LAZDdant$cpH',#2337713,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8450422',$,'Opening',#2636910,#2636923,$)

        #1021636=IfcOpeningElement('1E1yvzyVb0LAZDdant$cpH',#275834,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8450422',$,'Opening',#1021622,#1021635,$)

Found elements by 1E1yvzyVb0LAZDdant$cpj: 4

        #3694759=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpj',#3691594,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244294',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3694748,#3694758,'8244294')

        #3480919=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpj',#3479074,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244294',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3480917,#3480918,'8244294')

        #2388844=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpj',#2337713,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244294',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#2388842,#2388843,'8244294')

        #359263=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpj',#275834,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244294',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#359261,#359262,'8244294')

Found elements by 1E1yvzyVb0LAZDdant$cpi: 4

        #3694744=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpi',#3691594,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244295',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3694733,#3694743,'8244295')

        #3480913=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpi',#3479074,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244295',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3480911,#3480912,'8244295')

        #2388849=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpi',#2337713,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244295',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#2388847,#2388848,'8244295')

        #276812=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpi',#275834,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244295',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#276810,#276811,'8244295')

Found elements by 1E1yvzyVb0LAZDdant$cpp: 4

        #3694729=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpp',#3691594,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244312',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3694718,#3694728,'8244312')

        #3480907=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpp',#3479074,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244312',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3480905,#3480906,'8244312')

        #2388854=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpp',#2337713,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244312',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#2388852,#2388853,'8244312')

        #276806=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpp',#275834,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244312',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#276804,#276805,'8244312')

Found elements by 1E1yvzyVb0LAZDdant$cpo: 4

        #3694714=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpo',#3691594,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244313',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3694703,#3694713,'8244313')

        #3480901=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpo',#3479074,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244313',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3480899,#3480900,'8244313')

        #2388859=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpo',#2337713,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244313',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#2388857,#2388858,'8244313')

        #276800=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpo',#275834,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244313',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#276798,#276799,'8244313')

Found elements by 1E1yvzyVb0LAZDdant$cpn: 4

        #3694699=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpn',#3691594,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244314',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3694688,#3694698,'8244314')

        #3480895=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpn',#3479074,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244314',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3480893,#3480894,'8244314')

        #2388864=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpn',#2337713,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244314',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#2388862,#2388863,'8244314')

        #276794=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpn',#275834,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244314',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#276792,#276793,'8244314')

Found elements by 1E1yvzyVb0LAZDdant$cpm: 4

        #3694684=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpm',#3691594,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244315',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3694673,#3694683,'8244315')                                                         #3480889=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpm',#3479074,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244315',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3480887,#3480888,'8244315')                                                         #2388869=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpm',#2337713,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244315',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#2388867,#2388868,'8244315')                                                         #276788=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpm',#275834,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244315',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#276786,#276787,'8244315')                                                     Found elements by 1E1yvzyVb0LAZDdant$cp6: 4                                                                                                                                                                                                         

        #3694669=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cp6',#3691594,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244333',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3694658,#3694668,'8244333')

        #3480883=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cp6',#3479074,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244333',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3480881,#3480882,'8244333')

        #2388874=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cp6',#2337713,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244333',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#2388872,#2388873,'8244333')

        #276782=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cp6',#275834,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244333',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#276780,#276781,'8244333')

Found elements by 1E1yvzyVb0LAZDdant$cp5: 4

        #3694654=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cp5',#3691594,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244334',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3694643,#3694653,'8244334')

        #3480877=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cp5',#3479074,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244334',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3480875,#3480876,'8244334')

        #2388879=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cp5',#2337713,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244334',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#2388877,#2388878,'8244334')

        #276771=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cp5',#275834,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244334',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#276769,#276770,'8244334')

Found elements by 1E1yvzyVb0LAZDdant$cpR: 4

        #3694624=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpR',#3691594,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244336',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3694613,#3694623,'8244336')

        #3480865=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpR',#3479074,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244336',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#3480863,#3480864,'8244336')

        #2388889=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpR',#2337713,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244336',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#2388887,#2388888,'8244336')

        #359268=IfcWallStandardCase('1E1yvzyVb0LAZDdant$cpR',#275834,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm:8244336',$,'Basic Wall:PINTURA COR BRANCO NEVE 0,5cm',#359266,#359267,'8244336')