#2224 New headless import script

src/blenderbim/scripts/headless_import.py

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+# This can be run using `blender -b -P headless_import.py`
+
+import bpy
+from blenderbim.bim.ifc import IfcStore
+
+# When federating, you may wish to manually specify the origin to ensure models
+# with different or arbitrary origin conventions will turn up in the right spot.
+
+props = bpy.context.scene.BIMGeoreferenceProperties
+
+# A good idea it to test import a portion of the model (or grids only) and check
+# georeferencing coordinates in the IFC Georeferencing panel before filling out
+# these details.
+
+#props.blender_eastings = '334134181.0'
+#props.blender_northings = '6254570511.0'
+#props.blender_orthogonal_height = '0.0'
+#props.blender_x_axis_abscissa = '0.147487884244522'
+#props.blender_x_axis_ordinate = '0.989063862448262'
+#props.has_blender_offset = True
+
+props = bpy.context.scene.BIMProjectProperties
+
+# Generally recommended to disable caching for stability right now
+props.should_cache = False
+
+# If you are not authoring, it is recommended to enable this.
+# When enabled, types, openings, and non geometric elements are not loaded.
+props.is_coordinating = True
+
+# Merging is a good strategy to keep object counts low in huge models.
+
+# Leave it to none if you do not have a huge model.
+props.merge_mode = "NONE"
+
+# A good merge strategy when the type is significant
+props.merge_mode = "IFC_TYPE"
+
+# A good merge strategy to really get object counts low where types don't matter, like for structural models
+props.merge_mode = "IFC_CLASS"
+
+# If you want to import a range of elements, say the first 30k elements, set the
+# offset and limit here. 30k is generally useful as a guideline to keep models
+# responsive (though my computer can handle 80k).
+props.element_offset = 0
+props.element_limit = 30000
+
+bpy.ops.bim.load_project(filepath="/path/to/your/model/input.ifc")
+
+# In coordination mode, it is unnecessary to maintain a link to the IFC
+bpy.context.scene.BIMProperties.ifc_file = ""
+IfcStore.file = None
+
+# Save the processed file here
+bpy.ops.wm.save_mainfile(filepath="/path/to/your/model/output.blend")