First Commit

2026-05-31 10:17:09 +07:00
commit 17a9c69379
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+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2021, 2022 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of IfcOpenShell.
+#
+# IfcOpenShell is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# IfcOpenShell is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
+
+import datetime
+
+import ifcopenshell
+import ifcopenshell.util.schema
+
+
+def create_file(version: ifcopenshell.util.schema.IFC_SCHEMA = "IFC4") -> ifcopenshell.file:
+    """Create a blank IFC model file object
+
+    Create a new IFC file object based on the nominated schema version. The
+    schema version you choose determines what type of IFC data you can store
+    in this model. The file is blank and contains no entities.
+
+    It also sets up header data for STEP file serialisation, such as the
+    current timestamp, IfcOpenShell as the preprocessor, and defaults to a
+    DesignTransferView MVD.
+
+    :param version: The schema version of the IFC file. Choose from
+        "IFC2X3", "IFC4", or "IFC4X3". If you have loaded in a custom
+        schema, you may specify that schema identifier here too.
+    :return: The created IFC file object.
+
+    Example:
+
+    .. code:: python
+
+        # Start a new model.
+        model = ifcopenshell.api.project.create_file()
+
+        # It's currently a blank model, so typically the first thing we do
+        # is create a project in it.
+        project = ifcopenshell.api.root.create_entity(model, ifc_class="IfcProject", name="Test")
+
+        # ... and off we go!
+    """
+    file = ifcopenshell.file(schema=version)
+    file.header.file_name.name = "/dev/null"  # Hehehe
+    file.header.file_name.time_stamp = datetime.datetime.now().astimezone().replace(microsecond=0).isoformat()
+    file.header.file_name.preprocessor_version = "IfcOpenShell {}".format(ifcopenshell.version)
+    file.header.file_name.originating_system = "IfcOpenShell {}".format(ifcopenshell.version)
+    file.header.file_name.authorization = "Nobody"
+    file.header.file_description.description = ("ViewDefinition[DesignTransferView]",)
+    return file