111 lines
4.0 KiB
Python
111 lines
4.0 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2021 Thomas Krijnen <thomas@aecgeeks.com>
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#
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# This file is part of IfcOpenShell.
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#
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# IfcOpenShell is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser 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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# IfcOpenShell 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 Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
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import time
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import uuid
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from typing import Optional
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from .file import file
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from .guid import compress
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from .ifcopenshell_wrapper import version
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# A quick way to setup an 'empty' IFC file, taken from:
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# http://academy.ifcopenshell.org/creating-a-simple-wall-with-property-set-and-quantity-information/
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TEMPLATE = """ISO-10303-21;
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HEADER;
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FILE_DESCRIPTION(('ViewDefinition [%(mvd)s]'),'2;1');
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FILE_NAME('%(filename)s','%(timestring)s',('%(creator)s'),('%(organization)s'),'%(application)s','%(application)s','');
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FILE_SCHEMA(('%(schema_identifier)s'));
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ENDSEC;
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DATA;
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#1=IFCPERSON($,$,'%(creator)s',$,$,$,$,$);
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#2=IFCORGANIZATION($,'%(organization)s',$,$,$);
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#3=IFCPERSONANDORGANIZATION(#1,#2,$);
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#4=IFCAPPLICATION(#2,'%(application_version)s','%(application)s','');
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#5=IFCOWNERHISTORY(#3,#4,$,.NOTDEFINED.,$,#3,#4,%(timestamp)s);
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#6=IFCDIRECTION((1.,0.,0.));
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#7=IFCDIRECTION((0.,0.,1.));
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#8=IFCCARTESIANPOINT((0.,0.,0.));
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#9=IFCAXIS2PLACEMENT3D(#8,#7,#6);
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#10=IFCDIRECTION((0.,1.));
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#11=IFCGEOMETRICREPRESENTATIONCONTEXT($,'Model',3,1.E-05,#9,#10);
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#12=IFCDIMENSIONALEXPONENTS(0,0,0,0,0,0,0);
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#13=IFCSIUNIT(*,.LENGTHUNIT.,$,.METRE.);
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#14=IFCSIUNIT(*,.AREAUNIT.,$,.SQUARE_METRE.);
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#15=IFCSIUNIT(*,.VOLUMEUNIT.,$,.CUBIC_METRE.);
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#16=IFCSIUNIT(*,.PLANEANGLEUNIT.,$,.RADIAN.);
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#17=IFCMEASUREWITHUNIT(IFCPLANEANGLEMEASURE(0.017453292519943295),#16);
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#18=IFCCONVERSIONBASEDUNIT(#12,.PLANEANGLEUNIT.,'DEGREE',#17);
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#19=IFCUNITASSIGNMENT((#13,#14,#15,#18));
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#20=IFCPROJECT('%(project_globalid)s',#5,'%(project_name)s',$,$,$,$,(#11),#19);
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ENDSEC;
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END-ISO-10303-21;
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"""
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DEFAULTS = {
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"application": lambda d: "IfcOpenShell contributors - IfcOpenShell - v%s" % get_pep440_version(version()),
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"application_version": lambda d: get_pep440_version(version()),
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"project_globalid": lambda d: compress(uuid.uuid4().hex),
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"schema_identifier": lambda d: "IFC4",
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"timestamp": lambda d: int(time.time()),
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"timestring": lambda d: time.strftime("%Y-%m-%dT%H:%M:%S", time.gmtime(d.get("timestamp") or time.time())),
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"mvd": lambda d: (
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"ReferenceView_V1.2"
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if d.get("schema_identifier") == "IFC4"
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else (
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"CoordinationView_V2.0"
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if d.get("schema_identifier") == "IFC2X3"
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else "ReferenceView" if d.get("schema_identifier") == "IFC4X3_ADD2" else "ReferenceView_V1.2"
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)
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),
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}
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def get_pep440_version(ifcopenshell_wrapper_version):
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"""
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Returns a PEP 440-compliant version string, valid for use with
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`packaging.version.parse()` and compliant with the Validation Service header policy.
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"""
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return ifcopenshell_wrapper_version.replace("-", "+", 1)
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def create(
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filename: Optional[str] = None,
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timestring: Optional[str] = None,
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organization: Optional[str] = None,
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creator: Optional[str] = None,
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schema_identifier: Optional[str] = None,
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application_version: Optional[str] = None,
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timestamp: Optional[str] = None,
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application: Optional[str] = None,
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project_globalid: Optional[str] = None,
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project_name: Optional[str] = None,
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mvd: Optional[str] = None,
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) -> file:
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d = dict(locals())
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def _():
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for var, value in d.items():
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if value is None:
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yield var, DEFAULTS.get(var, lambda *args: "")(d)
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d.update(dict(_()))
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return file.from_string(TEMPLATE % d)
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