Eyedrop tool to visually select objects to export to IFC

src/ifcblenderexport/blenderbim/bim/__init__.py

@@ -107,6 +107,7 @@ if bpy is not None:
         operator.RemoveCsvAttribute,
         operator.ExportIfcCsv,
         operator.ImportIfcCsv,
+        operator.EyedropIfcCsv,
         prop.StrProperty,
         prop.Classification,
         prop.ClassificationReference,

src/ifcblenderexport/blenderbim/bim/operator.py

@@ -2076,3 +2076,17 @@ class ImportIfcCsv(bpy.types.Operator):
         ifc_csv.output = self.filepath
         ifc_csv.Import(bpy.context.scene.BIMProperties.ifc_file)
         return {'FINISHED'}
+
+
+class EyedropIfcCsv(bpy.types.Operator):
+    bl_idname = 'bim.eyedrop_ifccsv'
+    bl_label = 'Query Selected Items'
+
+    def execute(self, context):
+        global_ids = []
+        for obj in bpy.context.selected_objects:
+            if hasattr(obj, 'BIMObjectProperties') \
+                    and obj.BIMObjectProperties.attributes.get('GlobalId'):
+                global_ids.append('#' + obj.BIMObjectProperties.attributes.get('GlobalId').string_value)
+        bpy.context.scene.BIMProperties.ifc_selector = '|'.join(global_ids)
+        return {'FINISHED'}

src/ifcblenderexport/blenderbim/bim/ui.py

@@ -662,8 +662,9 @@ class BIM_PT_ifccsv(Panel):
         scene = context.scene
         props = scene.BIMProperties
 
-        row = layout.row()
+        row = layout.row(align=True)
         row.prop(props, 'ifc_selector')
+        row.operator('bim.eyedrop_ifccsv', icon='EYEDROPPER', text='')
 
         row = layout.row()
         row.operator('bim.add_csv_attribute')