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Andrej730Andrej730
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Make IfcParseExamples buildable outside of the main build tree
It's a very verbose version of consuming IfcOpenShell cmake package, but we'll be able to use it as a start point to build upon.
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5 files changed

+198
-17
lines changed

5 files changed

+198
-17
lines changed

‎.github/workflows/ci.yml‎

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@@ -118,6 +118,31 @@ jobs:
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-DCMAKE_CXX_FLAGS_INIT="-fPIC"
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sudo make -j$(nproc) install
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# We need zstd and libxml2 just for cmake config files to test the examples build.
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# zslibzstd-dev has cmake config only on Ubuntu 24.04+.
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- name : Build zstd
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run: |
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git clone https://github.com/facebook/zstd --depth 1 --branch v1.5.7
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cd zstd
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# `build` already exists.
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mkdir build_ && cd build_
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cmake ../build/cmake -DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_C_COMPILER_LAUNCHER=ccache \
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-DCMAKE_CXX_COMPILER_LAUNCHER=ccache
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sudo cmake --build . --target install -j $(nproc)
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# libxml2-dev doesn't have cmake configs even on Ubuntu 24.04+.
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- name: Build libxml2
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run: |
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git clone https://gitlab.gnome.org/GNOME/libxml2.git --branch v2.13.8 --depth 1
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cd libxml2
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mkdir build && cd build
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cmake .. \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_C_COMPILER_LAUNCHER=ccache \
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-DCMAKE_CXX_COMPILER_LAUNCHER=ccache
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sudo cmake --build . --target install -j $(nproc)
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# Ubuntu has `swig` package, but we build it to match the version we use in the main build.
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# To avoid failing tests when checking stub generation.
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- name: build swig
@@ -178,6 +203,14 @@ jobs:
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run: |
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IfcConvert test/input/acad2010_walls.ifc test/input/acad2010_walls.obj
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- name: Build standalone examples to test cmake package
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run: |
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cd src/examples
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mkdir build && cd build
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cmake .. -DCMAKE_BUILD_TYPE=Release
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cmake --build .
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./IfcParseExamples "../IfcParseExamples_test.ifc"
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- name: Test ifcopenshell-python
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run: |
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cd test

‎.gitignore‎

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@@ -4,6 +4,7 @@
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/_deps-vs*-x*-installed/
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/_installed-vs*-x*/
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/build/
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/src/examples/build/
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# output directories
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/cmake/out/

‎src/examples/CMakeLists.txt‎

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@@ -17,31 +17,59 @@
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# #
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################################################################################
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20-
if(SCHEMA_VERSIONS MATCHES "2x3")
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ADD_EXECUTABLE(IfcParseExamples IfcParseExamples.cpp)
22-
TARGET_LINK_LIBRARIES(IfcParseExamples IfcParse)
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set_target_properties(IfcParseExamples PROPERTIES FOLDER Examples)
24-
target_compile_features(IfcParseExamples PUBLIC cxx_std_17)
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# Thils file can also be build standalone, outside of the IfcOpenShell build tree,
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# to demonstrate the usage IfcOpenShell as a cmake package.
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if(NOT BUILD_EXAMPLES)
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set(STANDALONE_PROJECT ON)
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endif()
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if(STANDALONE_PROJECT)
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cmake_minimum_required(VERSION 3.21)
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project(IfcOpenShellExamples)
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set(Boost_USE_STATIC_LIBS ON)
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set(Boost_USE_STATIC_RUNTIME OFF)
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set(Boost_USE_MULTITHREADED ON)
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set(Boost_COMPONENTS system program_options regex thread date_time iostreams)
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find_package(Boost CONFIG REQUIRED COMPONENTS ${Boost_COMPONENTS})
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find_package(zstd CONFIG REQUIRED)
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find_package(RocksDB CONFIG REQUIRED)
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find_package(LibXml2 CONFIG REQUIRED)
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find_package(IfcOpenShell CONFIG REQUIRED)
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endif()
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26-
if(WITH_OPENCASCADE)
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if(STANDALONE_PROJECT OR SCHEMA_VERSIONS MATCHES "2x3")
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add_executable(IfcParseExamples IfcParseExamples.cpp)
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28-
ADD_EXECUTABLE(IfcOpenHouse IfcOpenHouse.cpp)
29-
TARGET_LINK_LIBRARIES(IfcOpenHouse ${IFCOPENSHELL_LIBRARIES} ${OpenCASCADE_LIBRARIES})
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if(STANDALONE_PROJECT)
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target_include_directories(IfcParseExamples PRIVATE ${Boost_INCLUDE_DIRS})
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target_link_libraries(IfcParseExamples ${Boost_LIBRARIES})
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target_link_libraries(IfcParseExamples IfcOpenShell::IfcParse)
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target_compile_features(IfcParseExamples PRIVATE cxx_std_17)
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target_compile_definitions(IfcParseExamples PRIVATE "SCHEMA_SEQ=(2x3)" HAS_SCHEMA_2x3 IFOPSH_WITH_ROCKSDB)
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else()
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target_link_libraries(IfcParseExamples IfcParse)
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set_target_properties(IfcParseExamples PROPERTIES FOLDER Examples)
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target_compile_features(IfcParseExamples PRIVATE cxx_std_17)
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endif()
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if(NOT STANDALONE_PROJECT AND WITH_OPENCASCADE)
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add_executable(IfcOpenHouse IfcOpenHouse.cpp)
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target_link_libraries(IfcOpenHouse ${IFCOPENSHELL_LIBRARIES} ${OpenCASCADE_LIBRARIES})
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set_target_properties(IfcOpenHouse PROPERTIES FOLDER Examples)
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32-
ADD_EXECUTABLE(IfcAdvancedHouse IfcAdvancedHouse.cpp)
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TARGET_LINK_LIBRARIES(IfcAdvancedHouse ${IFCOPENSHELL_LIBRARIES} ${OpenCASCADE_LIBRARIES})
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add_executable(IfcAdvancedHouse IfcAdvancedHouse.cpp)
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target_link_libraries(IfcAdvancedHouse ${IFCOPENSHELL_LIBRARIES} ${OpenCASCADE_LIBRARIES})
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set_target_properties(IfcAdvancedHouse PROPERTIES FOLDER Examples)
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endif()
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endif(SCHEMA_VERSIONS MATCHES "2x3")
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endif()
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39-
if(SCHEMA_VERSIONS MATCHES "4x3_add2")
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ADD_EXECUTABLE(IfcAlignment IfcAlignment.cpp)
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TARGET_LINK_LIBRARIES(IfcAlignment ${IFCOPENSHELL_LIBRARIES})
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if(NOT STANDALONE_PROJECT AND SCHEMA_VERSIONS MATCHES "4x3_add2")
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add_executable(IfcAlignment IfcAlignment.cpp)
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target_link_libraries(IfcAlignment ${IFCOPENSHELL_LIBRARIES})
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set_target_properties(IfcAlignment PROPERTIES FOLDER Examples)
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44-
ADD_EXECUTABLE(IfcSimplifiedAlignment IfcSimplifiedAlignment.cpp)
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TARGET_LINK_LIBRARIES(IfcSimplifiedAlignment ${IFCOPENSHELL_LIBRARIES})
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add_executable(IfcSimplifiedAlignment IfcSimplifiedAlignment.cpp)
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target_link_libraries(IfcSimplifiedAlignment ${IFCOPENSHELL_LIBRARIES})
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set_target_properties(IfcSimplifiedAlignment PROPERTIES FOLDER Examples)
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endif()

‎src/examples/IfcParseExamples_test.ifc‎

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ISO-10303-21;
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HEADER;
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FILE_DESCRIPTION(('ViewDefinition[DesignTransferView]'),'2;1');
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FILE_NAME('IfcParseExamples_test.ifc','2025-12-12T13:49:19+05:00',(''),(''),'IfcOpenShell 0.0.0','Bonsai 0.8.5-alpha251212-a47cbc3','Nobody');
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FILE_SCHEMA(('IFC2X3'));
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ENDSEC;
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DATA;
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#1=IFCPERSON('HSeldon','Seldon','Hari',$,$,$,$,$);
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#2=IFCORGANIZATION('APTR','Aperture Science',$,$,$);
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#3=IFCPERSONANDORGANIZATION(#1,#2,$);
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#4=IFCACTORROLE(.USERDEFINED.,'CONTRIBUTOR',$);
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#5=IFCORGANIZATION('IfcOpenShell','IfcOpenShell','IfcOpenShell is an open source software library that helps users and software developers to work with IFC data.',(#4),(#6));
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#6=IFCTELECOMADDRESS(.USERDEFINED.,$,'WEBPAGE',$,$,$,$,'https://ifcopenshell.org');
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#7=IFCAPPLICATION(#5,'0.8.5','Bonsai','Bonsai-0.8.5');
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#8=IFCOWNERHISTORY(#3,#7,.READWRITE.,.ADDED.,1765520605,#3,#7,1765520605);
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#9=IFCPROJECT('3GSSvm5SP5U96O5iar8uYb',#8,'My Project',$,$,$,$,(#22,#34),#17);
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#10=IFCSIUNIT(*,.LENGTHUNIT.,$,.METRE.);
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#11=IFCSIUNIT(*,.AREAUNIT.,$,.SQUARE_METRE.);
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#12=IFCSIUNIT(*,.VOLUMEUNIT.,$,.CUBIC_METRE.);
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#13=IFCDIMENSIONALEXPONENTS(0,0,0,0,0,0,0);
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#14=IFCSIUNIT(*,.PLANEANGLEUNIT.,$,.RADIAN.);
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#15=IFCMEASUREWITHUNIT(IFCREAL(0.0174532925199433),#14);
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#16=IFCCONVERSIONBASEDUNIT(#13,.PLANEANGLEUNIT.,'degree',#15);
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#17=IFCUNITASSIGNMENT((#12,#10,#16,#11));
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#18=IFCCARTESIANPOINT((0.,0.,0.));
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#19=IFCDIRECTION((0.,0.,1.));
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#20=IFCDIRECTION((1.,0.,0.));
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#21=IFCAXIS2PLACEMENT3D(#18,#19,#20);
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#22=IFCGEOMETRICREPRESENTATIONCONTEXT($,'Model',3,1.E-05,#21,$);
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#23=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Body','Model',*,*,*,*,#22,$,.MODEL_VIEW.,$);
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#24=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Axis','Model',*,*,*,*,#22,$,.GRAPH_VIEW.,$);
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#25=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Box','Model',*,*,*,*,#22,$,.MODEL_VIEW.,$);
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#26=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Annotation','Model',*,*,*,*,#22,$,.SECTION_VIEW.,$);
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#27=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Annotation','Model',*,*,*,*,#22,$,.ELEVATION_VIEW.,$);
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#28=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Annotation','Model',*,*,*,*,#22,$,.MODEL_VIEW.,$);
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#29=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Annotation','Model',*,*,*,*,#22,$,.PLAN_VIEW.,$);
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#30=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Profile','Model',*,*,*,*,#22,$,.ELEVATION_VIEW.,$);
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#31=IFCCARTESIANPOINT((0.,0.));
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#32=IFCDIRECTION((1.,0.));
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#33=IFCAXIS2PLACEMENT2D(#31,#32);
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#34=IFCGEOMETRICREPRESENTATIONCONTEXT($,'Plan',2,1.E-05,#33,$);
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#35=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Axis','Plan',*,*,*,*,#34,$,.GRAPH_VIEW.,$);
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#36=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Body','Plan',*,*,*,*,#34,$,.PLAN_VIEW.,$);
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#37=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Annotation','Plan',*,*,*,*,#34,$,.PLAN_VIEW.,$);
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#38=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Annotation','Plan',*,*,*,*,#34,$,.REFLECTED_PLAN_VIEW.,$);
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#39=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765520605,#3,#7,1765520605);
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#40=IFCSITE('2Ys4j4OOf3x9UYeALDJ_g3',#39,'My Site',$,$,#66,$,$,.ELEMENT.,$,$,$,$,$);
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#46=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765520605,#3,#7,1765520605);
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#47=IFCBUILDING('3e580MQFTCD9tCSaZWRPi9',#46,'My Building',$,$,#73,$,$,.ELEMENT.,$,$,$);
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#53=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765520605,#3,#7,1765520605);
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#54=IFCBUILDINGSTOREY('3XFkAr6KbAsP5wR3gxi3my',#53,'My Storey',$,$,#80,$,$,.ELEMENT.,$);
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#60=IFCOWNERHISTORY(#3,#7,.READWRITE.,.ADDED.,1765520605,#3,#7,1765520605);
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#61=IFCRELAGGREGATES('2OWfFyDQn0qP0Vd6NWGX7k',#60,$,$,#9,(#40));
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#62=IFCCARTESIANPOINT((0.,0.,0.));
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#63=IFCDIRECTION((0.,0.,1.));
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#64=IFCDIRECTION((1.,0.,0.));
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#65=IFCAXIS2PLACEMENT3D(#62,#63,#64);
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#66=IFCLOCALPLACEMENT($,#65);
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#67=IFCOWNERHISTORY(#3,#7,.READWRITE.,.ADDED.,1765520605,#3,#7,1765520605);
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#68=IFCRELAGGREGATES('3_X_vfPpXDaO3NODBJgmSp',#67,$,$,#40,(#47));
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#69=IFCCARTESIANPOINT((0.,0.,0.));
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#70=IFCDIRECTION((0.,0.,1.));
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#71=IFCDIRECTION((1.,0.,0.));
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#72=IFCAXIS2PLACEMENT3D(#69,#70,#71);
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#73=IFCLOCALPLACEMENT(#66,#72);
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#74=IFCOWNERHISTORY(#3,#7,.READWRITE.,.ADDED.,1765520605,#3,#7,1765520605);
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#75=IFCRELAGGREGATES('3ScF98CZD3pAa0SW$mhBHF',#74,$,$,#47,(#54));
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#76=IFCCARTESIANPOINT((0.,0.,0.));
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#77=IFCDIRECTION((0.,0.,1.));
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#78=IFCDIRECTION((1.,0.,0.));
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#79=IFCAXIS2PLACEMENT3D(#76,#77,#78);
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#80=IFCLOCALPLACEMENT(#73,#79);
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#110=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765529359,#3,#7,1765520632);
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#111=IFCWALL('1lfiJzSCH1a8vjDuSLL4Ii',#110,'Cube',$,$,#203,$,$);
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#112=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765520818,#3,#7,1765520632);
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#113=IFCRELCONTAINEDINSPATIALSTRUCTURE('2Gqx6vP7jB4x_h65Tawn0f',#112,$,$,(#111,#182,#150),#54);
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#149=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765529359,#3,#7,1765520810);
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#150=IFCWINDOW('1eE0btB_54tBL59wLXKO1B',#149,'Cube',$,$,#208,$,$,$,$);
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#181=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765529359,#3,#7,1765520818);
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#182=IFCBUILDINGELEMENTPART('0fmaoBJgz0kPBavO$EJkPn',#181,'Cube',$,$,#198,$,$);
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#194=IFCCARTESIANPOINT((-3.82147288322449,-0.987768530845642,1.78445267677307));
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#195=IFCDIRECTION((0.,0.,1.));
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#196=IFCDIRECTION((1.,0.,0.));
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#197=IFCAXIS2PLACEMENT3D(#194,#195,#196);
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#198=IFCLOCALPLACEMENT(#80,#197);
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#199=IFCCARTESIANPOINT((0.,0.,0.));
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#200=IFCDIRECTION((0.,0.,1.));
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#201=IFCDIRECTION((1.,0.,0.));
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#202=IFCAXIS2PLACEMENT3D(#199,#200,#201);
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#203=IFCLOCALPLACEMENT(#80,#202);
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#204=IFCCARTESIANPOINT((0.,4.25822639465332,0.));
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#205=IFCDIRECTION((0.,0.,1.));
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#206=IFCDIRECTION((1.,0.,0.));
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#207=IFCAXIS2PLACEMENT3D(#204,#205,#206);
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#208=IFCLOCALPLACEMENT(#80,#207);
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ENDSEC;
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END-ISO-10303-21;

‎src/examples/README.md‎

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Example of building IfcParseExamples outside of the IfcOpenShell build tree.
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```powershell
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$IFCOPENSHELL_ROOT="L:\Projects\Github\IfcOpenShell"
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$PREFIX_PATH="$IFCOPENSHELL_ROOT\_deps\boost_1_86_0\stage\vs2022-x64"
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$PREFIX_PATH+=";$IFCOPENSHELL_ROOT\_installed-vs2022-x64"
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$PREFIX_PATH+=";$IFCOPENSHELL_ROOT\_deps-vs2022-x64-installed\rocksdb"
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$PREFIX_PATH+=";$IFCOPENSHELL_ROOT\_deps-vs2022-x64-installed\zstd"
10+
$PREFIX_PATH+=";L:\Software\usr\libxml2"
11+
12+
cmake .. -G Ninja -DCMAKE_PREFIX_PATH="$PREFIX_PATH" -DCMAKE_BUILD_TYPE=Release
13+
ninja -v
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./IfcParseExamples.exe "../IfcParseExamples_test.ifc"
15+
# Scanning file...
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# Done scanning file
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# Done resolving references
18+
# Found 3 elements in ..\IfcParseExamples_test.ifc:
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# #182=IfcBuildingElementPart('0fmaoBJgz0kPBavO$EJkPn',#181,'Cube',$,$,#193,#183,$)
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# #111=IfcWall('1lfiJzSCH1a8vjDuSLL4Ii',#110,'Cube',$,$,#119,#114,$)
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# #150=IfcWindow('1eE0btB_54tBL59wLXKO1B',#149,'Cube',$,$,#188,#151,$,$,$)
22+
```

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