46 lines
1.6 KiB
Python
46 lines
1.6 KiB
Python
"""
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Dependency graph: Original object example
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+++++++++++++++++++++++++++++++++++++++++
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This example demonstrates access to the original ID.
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Such access is needed to check whether object is selected, or to compare pointers.
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"""
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import bpy
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class OBJECT_OT_original_example(bpy.types.Operator):
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"""Access original object and do something with it"""
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bl_label = "DEG Access Original Object"
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bl_idname = "object.original_example"
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def check_object_selected(self, object_eval):
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# Selection depends on a context and is only valid for original objects. This means we need
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# to request the original object from the known evaluated one.
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#
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# NOTE: All ID types have an `original` field.
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obj = object_eval.original
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return obj.select_get()
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def execute(self, context):
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# NOTE: It seems redundant to iterate over original objects to request evaluated ones
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# just to get original back. But we want to keep example as short as possible, but in real
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# world there are cases when evaluated object is coming from a more meaningful source.
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depsgraph = context.evaluated_depsgraph_get()
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for obj in context.editable_objects:
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object_eval = obj.evaluated_get(depsgraph)
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if self.check_object_selected(object_eval):
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self.report({'INFO'}, f"Object is selected: {object_eval.name}")
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return {'FINISHED'}
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def register():
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bpy.utils.register_class(OBJECT_OT_original_example)
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def unregister():
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bpy.utils.unregister_class(OBJECT_OT_original_example)
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if __name__ == "__main__":
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register()
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