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https://github.com/IfcOpenShell/IfcOpenShell.git
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Update README
This commit is contained in:
Thomas Krijnen
@@ -3,7 +3,8 @@ IfcOpenShell
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open source (LGPL) software library for working with the IFC file format
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http://IfcOpenShell.org
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http://ifcopenshell.org
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http://academy.ifcopenshell.org
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Compiling on Windows
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@@ -25,9 +26,8 @@ environment variable. Python needs to be installed, please provide the
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include and library paths to Visual Studio.
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Compiling on *nix
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====================
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=================
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Users are advised to build IfcOpenShell using the cmake file provided in
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the cmake/ folder. There might be an Open CASCADE package in your operating
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system's software repository. If not, you will need to compile Open
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@@ -36,30 +36,83 @@ CASCADE yourself. See http://opencascade.org.
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For building the IfcPython wrapper, SWIG and Python development are
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required.
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Additionally, on Ubuntu (and possibly other linux flavors) the following steps
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install some of the prerequisites:
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$ sudo apt-get install git swig cmake gcc g++ libftgl-dev libtbb2 libtbb-dev libboost-all-dev libgl1-mesa-dev libfreetype6-dev
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$ git clone https://github.com/tpaviot/oce.git
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$ cd oce
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$ mkdir build && cd build
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$ cmake ..
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$ make
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$ sudo make install
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To build IfcOpenShell please take the following steps:
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$ cd /path/to/IfcOpenShell/cmake
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$ mkdir build
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$ cd build
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Optionally:
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$ OCC_INCLUDE_PATH="/path/to/OpenCASCADE/include"
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$ OCC_LIBRARY_PATH="/path/to/OpenCASCADE/lib"
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$ export OCC_INCLUDE_PATH
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$ export OCC_LIBRARY_PATH
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$ cmake ../
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$ make
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$ cd /path/to/IfcOpenShell/cmake
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$ mkdir build
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$ cd build
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Optionally:
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$ OCC_INCLUDE_PATH="/path/to/OpenCASCADE/include"
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$ OCC_LIBRARY_PATH="/path/to/OpenCASCADE/lib"
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$ export OCC_INCLUDE_PATH
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$ export OCC_LIBRARY_PATH
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$ cmake ../
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$ make
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If all worked out correctly you can now use IfcOpenShell. For example:
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$ wget ftp://ftp.dds.no/pub/ifc/Munkerud/Munkerud_hus6_BE.zip
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$ unzip Munkerud_hus6_BE.zip
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$ ./IfcObj Munkerud_hus6_BE.ifc
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$ less Munkerud_hus6_BE.obj
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Or:
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$ wget ftp://ftp.dds.no/pub/ifc/Munkerud/Munkerud_hus6_BE.zip
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$ unzip Munkerud_hus6_BE.zip
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$ python
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>>> import IfcImport
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>>> IfcImport.Init('Munkerud_hus6_BE.ifc')
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>>> geom = IfcImport.Get()
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>>> geom.name
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>>> for v in geom.mesh.verts: v
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$ wget ftp://ftp.dds.no/pub/ifc/Munkerud/Munkerud_hus6_BE.zip
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$ unzip Munkerud_hus6_BE.zip
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$ ./IfcConvert Munkerud_hus6_BE.ifc
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$ less Munkerud_hus6_BE.obj
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Or:
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$ wget ftp://ftp.dds.no/pub/ifc/Munkerud/Munkerud_hus6_BE.zip
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$ unzip Munkerud_hus6_BE.zip
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$ python
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>>> import ifcopenshell
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>>> f = ifcopenshell.open("Duplex_A_20110907_optimized.ifc")
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>>> f.by_type("ifcwall")[:2]
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[#91=IfcWallStandardCase('2O2Fr$t4X7Zf8NOew3FL9r',#1,'Basic Wall:Interior - Partition (92mm Stud):144586',$,'Basic Wall:Interior - Partition (92mm Stud):128360',#5198,#18806,'144586'), #92=IfcWallStandardCase('2O2Fr$t4X7Zf8NOew3FLIE',#1,'Basic Wall:Interior - Partition (92mm Stud):143921',$,'Basic Wall:Interior - Partition (92mm Stud):128360',#5206,#18805,'143921')]
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>>> wall = _[0]
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>>> len(wall) # number of EXPRESS attributes
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8
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>>> wall.GlobalId
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'2O2Fr$t4X7Zf8NOew3FL9r'
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>>> wall.Name = "My wall"
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>>> wall.NonExistingAttr
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Traceback (most recent call last):
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File "<stdin>", line 1, in <module>
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File ".\ifcopenshell.py", line 14, in __getattr__
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except: raise AttributeError("entity instance of type '%s' has no attribute'%s'"%(self.wrapped_data.is_a(), name)) from None
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AttributeError: entity instance of type 'IfcWallStandardCase' has no attribute 'NonExistingAttr'
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>>> wall.GlobalId = 3
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Traceback (most recent call last):
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File "<stdin>", line 1, in <module>
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File ".\ifcopenshell.py", line 26, in __setattr__
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self[self.wrapped_data.get_argument_index(key)] = value
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File ".\ifcopenshell.py", line 30, in __setitem__
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self.wrapped_data.set_argument(idx, entity_instance.map_value(value))
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File ".\ifc_wrapper.py", line 118, in <lambda>
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set_argument = lambda self,x,y: self._set_argument(x) if y is None else self
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._set_argument(x,y)
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File ".\ifc_wrapper.py", line 114, in _set_argument
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def _set_argument(self, *args): return _ifc_wrapper.entity_instance__set_argument(self, *args)
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RuntimeError: INT is not a valid type for 'GlobalId'
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>>> f.createIfcCartesianPoint(Coordinates=(1.0,1.5,2.0))
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#27530=IfcCartesianPoint((1.,1.5,2.))
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>>> import uuid
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>>> ifcopenshell.guid.compress(uuid.uuid1().hex)
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'3x4C8Q_6qHuv$P$FYkANRX'
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>>> new_guid = _
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>>> owner_hist = f.by_type("IfcOwnerHistory")[0]
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>>> new_wall = f.createIfcWallStandardCase(new_guid, owner_hist, None, None, Tag='my_tag')
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>>> new_wall.ObjectType = ''
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>>> new_wall.ObjectPlacement = new_wall.Representation = None
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>>> f[92]
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#92=IfcWallStandardCase('2O2Fr$t4X7Zf8NOew3FLIE',#1,'Basic Wall:Interior - Partition (92mm Stud):143921',$,'Basic Wall:Interior - Partition (92mm Stud):128360',#5206,#18805,'143921')
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>>> f['2O2Fr$t4X7Zf8NOew3FLIE']
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#92=IfcWallStandardCase('2O2Fr$t4X7Zf8NOew3FLIE',#1,'Basic Wall:Interior - Partition (92mm Stud):143921',$,'Basic Wall:Interior - Partition (92mm Stud):128360',#5206,#18805,'143921')
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>>> f.write("out.ifc")
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