Добавлен импорт иерархии объектов из FreeCAD в Blender

cg/blender/import_fcstd/import_hierarchy.py

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+# -*- coding: utf-8 -*-
+# Copyright (C) 2023 Ilia Kurochkin <brothermechanic@gmail.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+# DESCRIPTION.
+# Collecting all parents and reconstruct this hierarhy in bledner.
+import logging
+import bpy
+
+logger = logging.getLogger(__name__)
+logging.basicConfig(level=logging.INFO)
+
+
+def import_hierarchy(fc_obj, b_obj, scale):
+    """FreeCAD object, Blender object, scene scale"""
+    obj_parent = fc_obj.getParentGeoFeatureGroup()
+    obj_child_name = None
+    while obj_parent:
+        if bpy.context.scene.objects.get(obj_parent.Label):
+            empty = bpy.data.objects[obj_parent.Label]
+        else:
+            bpy.ops.object.empty_add(
+                type='CUBE', radius=0.01, align='WORLD',
+                location=(0, 0, 0), rotation=(0, 0, 0))
+            empty = bpy.data.objects['Empty']
+            empty.name = obj_parent.Label
+            placement = obj_parent.Placement
+            empty.location = placement.Base.multiply(scale)
+            rm = empty.rotation_mode
+            if placement.Rotation.Angle:
+                empty.rotation_mode = 'QUATERNION'
+                q = (placement.Rotation.Q[3],)+placement.Rotation.Q[:3]
+                empty.rotation_quaternion = (q)
+                empty.rotation_mode = rm
+        if b_obj.parent:
+            bpy.data.objects[obj_child_name].parent = empty
+        else:
+            b_obj.parent = empty
+        obj_child_name = obj_parent.Label
+        obj_parent = obj_parent.getParentGeoFeatureGroup()
+        empty.select_set(False)
+        logger.debug('Add parent %s to object %s', empty.name, b_obj.name)