From: mpv <mpv@opencascade.com>
Date: Thu, 17 Jan 2019 16:22:31 +0000 (+0300)
Subject: Compounds in Selection task: initial implementation of "merge" of the same topology... 
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=refs%2Fheads%2FCompoundsInSelection;p=modules%2Fshaper.git

Compounds in Selection task: initial implementation of "merge" of the same topology in the selection list. Also, optimization of the Filter By Neighbors algorithm.
---

diff --git a/src/FeaturesPlugin/Test/Test2197_3.py b/src/FeaturesPlugin/Test/Test2197_3.py
index cf01ec2dc..0299dafd3 100644
--- a/src/FeaturesPlugin/Test/Test2197_3.py
+++ b/src/FeaturesPlugin/Test/Test2197_3.py
@@ -37,7 +37,7 @@ SketchConstraintCoincidence_3 = Sketch_1.setCoincident(SketchLine_3.endPoint(),
 SketchConstraintCoincidence_4 = Sketch_1.setCoincident(SketchLine_1.startPoint(), SketchLine_4.endPoint())
 model.do()
 Revolution_1 = model.addRevolution(Part_1_doc, [model.selection("FACE", "Sketch_1/Face-SketchLine_1r-SketchLine_2f-SketchLine_3f-SketchLine_4f")], model.selection("EDGE", "Sketch_1/SketchLine_4"), 360, 0)
-Group_1_objects = [model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_1][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_2]"), model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_1][weak_name_3]"), model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_2][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_3]"), model.selection("EDGE", "([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_1][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_2])([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_2][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_3])"), model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_3][weak_name_3]")]
+Group_1_objects = [model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_1][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_2]"), model.selection("EDGE", "([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_1][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_2])([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_2][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_3])2"), model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_2][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_3]"), model.selection("EDGE", "([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_1][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_2])([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_2][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_3])"), model.selection("EDGE", "([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_2][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_3])([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_1][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_2])2")]
 Group_1 = model.addGroup(Part_1_doc, Group_1_objects)
 model.do()
 model.end()
diff --git a/src/FeaturesPlugin/Test/Test2197_4.py b/src/FeaturesPlugin/Test/Test2197_4.py
index cdcd04e6e..a9cd2678c 100644
--- a/src/FeaturesPlugin/Test/Test2197_4.py
+++ b/src/FeaturesPlugin/Test/Test2197_4.py
@@ -52,7 +52,7 @@ SketchConstraintCoincidence_5 = Sketch_1.setCoincident(SketchLine_1.endPoint(),
 SketchConstraintCoincidence_5.setName("SketchConstraintCoincidence_7")
 model.do()
 Revolution_1 = model.addRevolution(Part_1_doc, [model.selection("FACE", "Sketch_1/Face-SketchLine_1r-SketchLine_6r-SketchLine_5r-SketchLine_3f-SketchLine_4f")], model.selection("EDGE", "Sketch_1/SketchLine_4"), 360, 0)
-Group_1_objects = [model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_1][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_6]"), model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_6][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_5]"), model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_5][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_3]"), model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_3][weak_name_3]"), model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_1][weak_name_3]"), model.selection("EDGE", "([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_1][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_6])([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_6][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_5])"), model.selection("EDGE", "([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_6][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_5])([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_5][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_3])")]
+Group_1_objects = [model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_1][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_6]"), model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_6][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_5]"), model.selection("EDGE", "[Revolution_1_1/Generated_Face&Sketch_1/SketchLine_5][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_3]"), model.selection("EDGE", "([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_5][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_3])([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_6][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_5])2"), model.selection("EDGE", "([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_1][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_6])([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_6][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_5])2"), model.selection("EDGE", "([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_1][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_6])([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_6][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_5])"), model.selection("EDGE", "([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_6][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_5])([Revolution_1_1/Generated_Face&Sketch_1/SketchLine_5][Revolution_1_1/Generated_Face&Sketch_1/SketchLine_3])")]
 Group_1 = model.addGroup(Part_1_doc, Group_1_objects)
 model.do()
 model.end()
diff --git a/src/FeaturesPlugin/Test/Test2248.py b/src/FeaturesPlugin/Test/Test2248.py
index c3dbdf15d..708505e43 100644
--- a/src/FeaturesPlugin/Test/Test2248.py
+++ b/src/FeaturesPlugin/Test/Test2248.py
@@ -48,7 +48,54 @@ SketchConstraintTangent_2 = Sketch_1.setTangent(SketchLine_3.result(), SketchArc
 SketchCircle_1 = Sketch_1.addCircle(-13.45056286489504, 169.4770920976776, 150.6703210346195)
 model.do()
 Extrusion_1 = model.addExtrusion(Part_1_doc, [model.selection("COMPOUND", "Sketch_1")], model.selection(), 10, 0)
-Group_1_objects = [model.selection("EDGE", "[Extrusion_1_1_2/Generated_Face&Sketch_1/SketchLine_1][Extrusion_1_1_2/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_2/Generated_Face&Sketch_1/SketchCircle_1_2][Extrusion_1_1_2/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_2/Generated_Face&Sketch_1/SketchCircle_1_2][Extrusion_1_1_2/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_2/Generated_Face&Sketch_1/SketchLine_1][Extrusion_1_1_2/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2][Extrusion_1_1_1/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2][Extrusion_1_1_1/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_2/Generated_Face&Sketch_1/SketchLine_1][Extrusion_1_1_2/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_2/Generated_Face&Sketch_1/SketchLine_1][Extrusion_1_1_2/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1][Extrusion_1_1_1/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1][Extrusion_1_1_1/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_1]"), model.selection("EDGE", "[Extrusion_1_1_4/Generated_Face&Sketch_1/SketchLine_2][Extrusion_1_1_4/Generated_Face&Sketch_1/SketchLine_3]"), model.selection("EDGE", "[Extrusion_1_1_4/Generated_Face&Sketch_1/SketchLine_2][Extrusion_1_1_4/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_4/Generated_Face&Sketch_1/SketchLine_2][Extrusion_1_1_4/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2][Extrusion_1_1_1/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2][Extrusion_1_1_1/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_1][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2][Extrusion_1_1_1/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2][Extrusion_1_1_1/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_4/Generated_Face&Sketch_1/SketchLine_3][Extrusion_1_1_4/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_4/Generated_Face&Sketch_1/SketchLine_3][Extrusion_1_1_4/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4][Extrusion_1_1_1/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4][Extrusion_1_1_1/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_2][Extrusion_1_1_1/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_2][Extrusion_1_1_1/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2][Extrusion_1_1_1/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2][Extrusion_1_1_1/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2][Extrusion_1_1_1/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2][Extrusion_1_1_1/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2][Extrusion_1_1_1/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2][Extrusion_1_1_1/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1][Extrusion_1_1_1/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1][Extrusion_1_1_1/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_1]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_1][Extrusion_1_1_1/To_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_1][Extrusion_1_1_1/From_Face]"), model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_1][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2]")]
+Group_1_objects = [
+model.selection("EDGE", "[Extrusion_1_1_2/Generated_Face&Sketch_1/SketchLine_1][Extrusion_1_1_2/To_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_2/Generated_Face&Sketch_1/SketchCircle_1_2][Extrusion_1_1_2/From_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_2/Generated_Face&Sketch_1/SketchCircle_1_2][Extrusion_1_1_2/To_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_2/Generated_Face&Sketch_1/SketchLine_1][Extrusion_1_1_2/From_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2][Extrusion_1_1_1/To_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2][Extrusion_1_1_1/From_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_2/Generated_Face&Sketch_1/SketchLine_1][Extrusion_1_1_2/To_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_2/Generated_Face&Sketch_1/SketchLine_1][Extrusion_1_1_2/From_Face]"),
+model.selection("EDGE", "[(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2)2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1][Extrusion_1_1_1/To_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1][Extrusion_1_1_1/From_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1][(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)2]"),
+model.selection("EDGE", "[Extrusion_1_1_4/Generated_Face&Sketch_1/SketchLine_2][Extrusion_1_1_4/Generated_Face&Sketch_1/SketchLine_3]"),
+model.selection("EDGE", "[Extrusion_1_1_4/Generated_Face&Sketch_1/SketchLine_2][Extrusion_1_1_4/To_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_4/Generated_Face&Sketch_1/SketchLine_2][Extrusion_1_1_4/From_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2][Extrusion_1_1_1/From_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2][Extrusion_1_1_1/To_Face]"),
+model.selection("EDGE", "[(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2][Extrusion_1_1_1/From_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2][Extrusion_1_1_1/To_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_4/Generated_Face&Sketch_1/SketchLine_3][Extrusion_1_1_4/To_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_4/Generated_Face&Sketch_1/SketchLine_3][Extrusion_1_1_4/From_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4][Extrusion_1_1_1/To_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4][Extrusion_1_1_1/From_Face]"),
+model.selection("EDGE", "[(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2)2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4]"),
+model.selection("EDGE", "[(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2)2][Extrusion_1_1_1/To_Face]"),
+model.selection("EDGE", "[(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2)2][Extrusion_1_1_1/From_Face]"),
+model.selection("EDGE", "[(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2)2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2][Extrusion_1_1_1/From_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2][Extrusion_1_1_1/To_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2][Extrusion_1_1_1/From_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2][Extrusion_1_1_1/To_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2][Extrusion_1_1_1/To_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2][Extrusion_1_1_1/From_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1][Extrusion_1_1_1/From_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1][Extrusion_1_1_1/To_Face]"),
+model.selection("EDGE", "[Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1][(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)2]"),
+model.selection("EDGE", "[(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)2][Extrusion_1_1_1/To_Face]"),
+model.selection("EDGE", "[(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)2][Extrusion_1_1_1/From_Face]"),
+model.selection("EDGE", "[(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_2_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)2][Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_1_2]")
+]
 Group_1 = model.addGroup(Part_1_doc, Group_1_objects)
 model.do()
 model.end()
diff --git a/src/FeaturesPlugin/Test/Test2251.py b/src/FeaturesPlugin/Test/Test2251.py
index d13c620cb..d8926a03d 100644
--- a/src/FeaturesPlugin/Test/Test2251.py
+++ b/src/FeaturesPlugin/Test/Test2251.py
@@ -56,7 +56,52 @@ SketchConstraintTangent_4 = Sketch_1.setTangent(SketchArc_3.results()[1], Sketch
 SketchConstraintCoincidence_9 = Sketch_1.setCoincident(SketchArc_2.results()[1], SketchArc_4.endPoint())
 model.do()
 Extrusion_1 = model.addExtrusion(Part_1_doc, [model.selection("COMPOUND", "Sketch_1")], model.selection(), 100, 0)
-Group_1_objects = [model.selection("FACE", "Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_2"), model.selection("FACE", "Extrusion_1_1_3/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2"), model.selection("FACE", "Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_1"), model.selection("FACE", "Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_2"), model.selection("FACE", "Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_2"), model.selection("FACE", "Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_3_2"), model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchLine_3"), model.selection("FACE", "Extrusion_1_1_3/From_Face"), model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchLine_2"), model.selection("FACE", "Extrusion_1_1_3/To_Face"), model.selection("FACE", "Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_1&weak_name_2"), model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchLine_3"), model.selection("FACE", "Extrusion_1_1_4/From_Face"), model.selection("FACE", "Extrusion_1_1_4/To_Face"), model.selection("FACE", "Extrusion_1_1_3/Generated_Face&Sketch_1/SketchLine_1"), model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchLine_2"), model.selection("FACE", "Extrusion_1_1_2/Generated_Face&Sketch_1/SketchCircle_1_2"), model.selection("FACE", "Extrusion_1_1_6/From_Face"), model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchArc_3_2"), model.selection("FACE", "Extrusion_1_1_6/To_Face"), model.selection("FACE", "Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_1_2"), model.selection("FACE", "Extrusion_1_1_6/Generated_Face&Sketch_1/SketchLine_3"), model.selection("FACE", "Extrusion_1_1_5/To_Face"), model.selection("FACE", "Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_2_2&weak_name_1"), model.selection("FACE", "Extrusion_1_1_5/From_Face"), model.selection("FACE", "Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_1_2"), model.selection("FACE", "Extrusion_1_1_3/Generated_Face&Sketch_1/SketchLine_1"), model.selection("FACE", "Extrusion_1_1_2/Generated_Face&Sketch_1/SketchCircle_1_2"), model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchArc_3_2"), model.selection("FACE", "Extrusion_1_1_4/Generated_Face&Sketch_1/SketchArc_4_2"), model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchArc_4_2"), model.selection("FACE", "Extrusion_1_1_6/Generated_Face&Sketch_1/SketchLine_3"), model.selection("FACE", "Extrusion_1_1_3/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2"), model.selection("FACE", "Extrusion_1_1_2/From_Face"), model.selection("FACE", "Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4"), model.selection("FACE", "Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_2_2&weak_name_2"), model.selection("FACE", "Extrusion_1_1_2/To_Face"), model.selection("FACE", "Extrusion_1_1_7/Generated_Face&Sketch_1/SketchCircle_2_2"), model.selection("FACE", "Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_2_2&weak_name_2"), model.selection("FACE", "Extrusion_1_1_7/To_Face"), model.selection("FACE", "Extrusion_1_1_7/From_Face"), model.selection("FACE", "Extrusion_1_1_3/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1"), model.selection("FACE", "Extrusion_1_1_1/From_Face"), model.selection("FACE", "Extrusion_1_1_1/To_Face")]
+Group_1_objects = [
+model.selection("FACE", "(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_4_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_3_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_3)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_2_2)2"),
+model.selection("FACE", "Extrusion_1_1_3/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2"),
+model.selection("FACE", "(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_2)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_4_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_3_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_3)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_2_2)2"),
+model.selection("FACE", "Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_2"),
+model.selection("FACE", "Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_2"),
+model.selection("FACE", "Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_3_2"),
+model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchLine_3"),
+model.selection("FACE", "Extrusion_1_1_3/From_Face"),
+model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchLine_2"),
+model.selection("FACE", "Extrusion_1_1_3/To_Face"),
+model.selection("FACE", "(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4)(Extrusion_1_1_1/From_Face)(Extrusion_1_1_1/To_Face)(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_4_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchArc_3_2)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_3)2(Extrusion_1_1_1/Generated_Face&Sketch_1/SketchCircle_2_2)2"),
+model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchLine_3"),
+model.selection("FACE", "Extrusion_1_1_4/From_Face"),
+model.selection("FACE", "Extrusion_1_1_4/To_Face"),
+model.selection("FACE", "Extrusion_1_1_3/Generated_Face&Sketch_1/SketchLine_1"),
+model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchLine_2"),
+model.selection("FACE", "Extrusion_1_1_2/Generated_Face&Sketch_1/SketchCircle_1_2"),
+model.selection("FACE", "Extrusion_1_1_6/From_Face"),
+model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchArc_3_2"),
+model.selection("FACE", "Extrusion_1_1_6/To_Face"),
+model.selection("FACE", "Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_1_2"),
+model.selection("FACE", "Extrusion_1_1_6/Generated_Face&Sketch_1/SketchLine_3"),
+model.selection("FACE", "Extrusion_1_1_5/To_Face"),
+model.selection("FACE", "(Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_1_2)(Extrusion_1_1_6/From_Face)(Extrusion_1_1_6/To_Face)(Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_3_2)2(Extrusion_1_1_6/Generated_Face&Sketch_1/SketchLine_3)2"),
+model.selection("FACE", "Extrusion_1_1_5/From_Face"),
+model.selection("FACE", "Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_1_2"),
+model.selection("FACE", "Extrusion_1_1_3/Generated_Face&Sketch_1/SketchLine_1"),
+model.selection("FACE", "Extrusion_1_1_2/Generated_Face&Sketch_1/SketchCircle_1_2"),
+model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchArc_3_2"),
+model.selection("FACE", "Extrusion_1_1_4/Generated_Face&Sketch_1/SketchArc_4_2"),
+model.selection("FACE", "Extrusion_1_1_5/Generated_Face&Sketch_1/SketchArc_4_2"),
+model.selection("FACE", "Extrusion_1_1_6/Generated_Face&Sketch_1/SketchLine_3"),
+model.selection("FACE", "Extrusion_1_1_3/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_2"),
+model.selection("FACE", "Extrusion_1_1_2/From_Face"),
+model.selection("FACE", "Extrusion_1_1_1/Generated_Face&Sketch_1/SketchLine_4"),
+model.selection("FACE", "(Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_3_2)(Extrusion_1_1_6/From_Face)(Extrusion_1_1_6/To_Face)(Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_1_2)2(Extrusion_1_1_6/Generated_Face&Sketch_1/SketchLine_3)2"),
+model.selection("FACE", "Extrusion_1_1_2/To_Face"),
+model.selection("FACE", "Extrusion_1_1_7/Generated_Face&Sketch_1/SketchCircle_2_2"),
+model.selection("FACE", "(Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_3_2)(Extrusion_1_1_6/From_Face)(Extrusion_1_1_6/To_Face)(Extrusion_1_1_6/Generated_Face&Sketch_1/SketchArc_1_2)2(Extrusion_1_1_6/Generated_Face&Sketch_1/SketchLine_3)2"),
+model.selection("FACE", "Extrusion_1_1_7/To_Face"),
+model.selection("FACE", "Extrusion_1_1_7/From_Face"),
+model.selection("FACE", "Extrusion_1_1_3/Generated_Face&Sketch_1/SketchCircle_1_2&weak_name_1"),
+model.selection("FACE", "Extrusion_1_1_1/From_Face"),
+model.selection("FACE", "Extrusion_1_1_1/To_Face")
+]
 Group_1 = model.addGroup(Part_1_doc, Group_1_objects)
 model.do()
 model.end()
diff --git a/src/FeaturesPlugin/Test/Test2729.py b/src/FeaturesPlugin/Test/Test2729.py
index 2819f1868..7f82fc5d0 100644
--- a/src/FeaturesPlugin/Test/Test2729.py
+++ b/src/FeaturesPlugin/Test/Test2729.py
@@ -236,7 +236,7 @@ SketchLine_39.setName("SketchLine_40")
 SketchLine_39.result().setName("SketchLine_40")
 ExtrusionCut_1.setNestedSketch(Sketch_2)
 ExtrusionCut_2 = model.addExtrusionCut(Part_1_doc, [], model.selection(), 0, 20, [model.selection("SOLID", "ExtrusionCut_1_1")])
-Sketch_3 = model.addSketch(Part_1_doc, model.selection("FACE", "ExtrusionCut_1_1/Modified_Face&Sketch_1/SketchLine_8&weak_name_1"))
+Sketch_3 = model.addSketch(Part_1_doc, model.selection("FACE", "(ExtrusionCut_1_1/Modified_Face&Extrusion_1_1/To_Face)(ExtrusionCut_1_1/Generated_Face&Sketch_2/SketchLine_23)(ExtrusionCut_1_1/Generated_Face&Sketch_2/SketchLine_25)(ExtrusionCut_1_1/Generated_Face&Sketch_2/SketchArc_2_2)(ExtrusionCut_1_1/Generated_Face&Sketch_2/SketchLine_24)(ExtrusionCut_1_1/Generated_Face&Sketch_2/SketchArc_3_2)(Extrusion_1_1/Generated_Face&Sketch_1/SketchLine_12)2(Extrusion_1_1/Generated_Face&Sketch_1/SketchLine_11)2(Extrusion_1_1/Generated_Face&Sketch_1/SketchLine_1)2(Extrusion_1_1/Generated_Face&Sketch_1/SketchLine_10)2(Extrusion_1_1/Generated_Face&Sketch_1/SketchLine_2)2(Extrusion_1_1/Generated_Face&Sketch_1/SketchLine_3)2(Extrusion_1_1/Generated_Face&Sketch_1/SketchLine_4)2(ExtrusionCut_1_1/Modified_Face&Sketch_1/SketchLine_5)2(ExtrusionCut_1_1/Modified_Face&Sketch_1/SketchLine_9)2(ExtrusionCut_1_1/Generated_Face&Sketch_2/SketchLine_21)2(ExtrusionCut_1_1/From_Face_1)2(ExtrusionCut_1_1/Generated_Face&Sketch_2/SketchLine_27)2"))
 SketchCircle_1 = Sketch_3.addCircle(-19.86097902097902, 65.28094405594405, 2.5)
 SketchCircle_2 = Sketch_3.addCircle(-18.51902097902098, 27.57192307692308, 2)
 SketchCircle_3 = Sketch_3.addCircle(-19.0558041958042, 85.54451048951049, 3)
diff --git a/src/FeaturesPlugin/Test/TestExtrusionCut_ByPlanesAndOffsets.py b/src/FeaturesPlugin/Test/TestExtrusionCut_ByPlanesAndOffsets.py
index 579be45ca..e66b1c099 100644
--- a/src/FeaturesPlugin/Test/TestExtrusionCut_ByPlanesAndOffsets.py
+++ b/src/FeaturesPlugin/Test/TestExtrusionCut_ByPlanesAndOffsets.py
@@ -52,7 +52,7 @@ checkMiddlePoint(Shape, 5, 5, 4.97049494)
 ExtrusionCut_2 = model.addExtrusionCut(Part_1_doc, [], model.selection("EDGE", "Axis_1"), model.selection(), 0, model.selection("FACE", "ExtrusionCut_1_1/Modified_Face&Box_1_1/Left"), 0, [model.selection("SOLID", "ExtrusionCut_1_1")])
 Sketch_2 = model.addSketch(Part_1_doc, model.selection("FACE", "Box_1_1/Front"))
 SketchCircle_2 = Sketch_2.addCircle(10, 10, 2.040695131136049)
-SketchProjection_2 = Sketch_2.addProjection(model.selection("VERTEX", "[ExtrusionCut_1_1/Modified_Face&Box_1_1/Right][Box_1_1/Front][ExtrusionCut_1_1/Modified_Face&Box_1_1/Top&weak_name_2]"), False)
+SketchProjection_2 = Sketch_2.addProjection(model.selection("VERTEX", "[ExtrusionCut_1_1/Modified_Face&Box_1_1/Right][Box_1_1/Front][(ExtrusionCut_1_1/Modified_Face&Box_1_1/Left)(ExtrusionCut_1_1/Modified_Face&Box_1_1/Right)(Box_1_1/Front)(Box_1_1/Back)2(Box_1_1/Bottom)2]"), False)
 SketchPoint_1 = SketchProjection_2.createdFeature()
 SketchConstraintCoincidence_2 = Sketch_2.setCoincident(SketchCircle_2.center(), SketchAPI_Point(SketchPoint_1).coordinates())
 ExtrusionCut_2.setNestedSketch(Sketch_2)
diff --git a/src/Model/Model_AttributeSelection.cpp b/src/Model/Model_AttributeSelection.cpp
index 00736a73e..b6e174a03 100644
--- a/src/Model/Model_AttributeSelection.cpp
+++ b/src/Model/Model_AttributeSelection.cpp
@@ -594,13 +594,17 @@ bool Model_AttributeSelection::update()
       aNewShape = aNS->Get();
 
     if (anOldShape.IsNull() || aNewShape.IsNull() || !anOldShape.IsEqual(aNewShape)) {
+      bool aIsRemoved = false; // this may be removed, so, don't send the "update" message
       // shape type should not be changed: if shape becomes compound of such shapes, then split
       if (myParent && !anOldShape.IsNull() && !aNewShape.IsNull() &&
           anOldShape.ShapeType() != aNewShape.ShapeType() &&
           aNewShape.ShapeType() == TopAbs_COMPOUND) {
         split(aContext, aNewShape, anOldShape.ShapeType());
+      } else if (myParent && !aNewShape.IsNull()) { // merge: remove equal shapes from the list
+        aIsRemoved = myParent->merge(this);
       }
-      owner()->data()->sendAttributeUpdated(this);  // send updated if shape is changed
+      if (!aIsRemoved)
+        owner()->data()->sendAttributeUpdated(this);  // send updated if shape is changed
     }
     return aResult;
   }
@@ -705,7 +709,7 @@ bool Model_AttributeSelection::selectPart(
   return !aName.empty();
 }
 
-TDF_Label Model_AttributeSelection::selectionLabel()
+TDF_Label Model_AttributeSelection::selectionLabel() const
 {
   return myRef.myRef->Label().FindChild(1);
 }
diff --git a/src/Model/Model_AttributeSelection.h b/src/Model/Model_AttributeSelection.h
index 741929433..2c94e1ebd 100644
--- a/src/Model/Model_AttributeSelection.h
+++ b/src/Model/Model_AttributeSelection.h
@@ -168,7 +168,7 @@ protected:
 
   /// Returns the label where TNaming_Selection results are stored
   /// Note: there must be no attributes stored at the same label because Selector clears this lab
-  TDF_Label selectionLabel();
+  TDF_Label selectionLabel() const;
 
   /// Sets the ID of the attribute in Data (called from Data): here it is used for myRef ID setting
   MODEL_EXPORT virtual void setID(const std::string theID);
diff --git a/src/Model/Model_AttributeSelectionList.cpp b/src/Model/Model_AttributeSelectionList.cpp
index b813dcd18..9a6c7d427 100644
--- a/src/Model/Model_AttributeSelectionList.cpp
+++ b/src/Model/Model_AttributeSelectionList.cpp
@@ -481,3 +481,31 @@ void Model_AttributeSelectionList::setGeometricalSelection(const bool theIsGeome
   myCash.clear(); // empty list as indicator that cash is not used
   owner()->data()->sendAttributeUpdated(this);
 }
+
+bool Model_AttributeSelectionList::merge(Model_AttributeSelection* theStart)
+{
+  int aSize = size();
+  TDF_Label aStartLab = theStart->selectionLabel().Father();
+  ResultPtr aContext = theStart->context();
+  if (aContext.get()) {
+    GeomShapePtr aValue = theStart->value();
+    if (aValue.get() && !aValue->isNull()) {
+      for(int anIndex = aStartLab.Tag(); anIndex < aSize; anIndex++) {
+        AttributeSelectionPtr aSel = value(anIndex);
+        if (aContext == aSel->context() && aValue->isSame(aSel->value())) { // remove theStart
+          std::set<int> aRemoved;
+          aRemoved.insert(aStartLab.Tag() - 1);
+          remove(aRemoved);
+          // also re-select theStart to make name cover both attributes (after split of merged)
+          aSel = value(anIndex - 1); // attributes of this attribute were moved up by "remove"
+          static ObjectPtr anEmptyContext;
+          static GeomShapePtr anEmptyShape;
+          aSel->setValue(anEmptyContext, anEmptyShape);
+          aSel->setValue(aContext, aValue);
+          return true;
+        }
+      }
+    }
+  }
+  return false; // not merged
+}
diff --git a/src/Model/Model_AttributeSelectionList.h b/src/Model/Model_AttributeSelectionList.h
index d84ca1ff4..7df121d22 100644
--- a/src/Model/Model_AttributeSelectionList.h
+++ b/src/Model/Model_AttributeSelectionList.h
@@ -122,7 +122,12 @@ protected:
   /// Reinitializes the internal state of the attribute (may be needed on undo/redo, abort, etc)
   virtual void reinit();
 
+  /// Tries to merge attributes in this list with the same result shape. Returns true
+  /// if theStart matches with some later attribute and theStart is removed from the list.
+  bool merge(Model_AttributeSelection* theStart);
+
   friend class Model_Data;
+  friend class Model_AttributeSelection;
 };
 
 #endif
diff --git a/src/Model/Model_BodyBuilder.cpp b/src/Model/Model_BodyBuilder.cpp
index f22dfe5bd..7efd13fe8 100755
--- a/src/Model/Model_BodyBuilder.cpp
+++ b/src/Model/Model_BodyBuilder.cpp
@@ -616,9 +616,7 @@ void Model_BodyBuilder::loadGeneratedShapes(const GeomMakeShapePtr& theAlgo,
 
       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
-      if (aNewShapeIsSameAsOldShape
-        || aNewShapeIsNotInResultShape)
-      {
+      if (aNewShapeIsSameAsOldShape || aNewShapeIsNotInResultShape) {
         continue;
       }
 
@@ -634,8 +632,26 @@ void Model_BodyBuilder::loadGeneratedShapes(const GeomMakeShapePtr& theAlgo,
           storeExternalReference(anOriginalLabel, builder(aTag)->NamedShape()->Label());
         }
         buildName(aTag, theName);
-      }
-      else {
+      } if (aResultShape->isSame(aNewShape)) {
+        // keep the generation evolution on the root level (2397 - for intersection feature)
+        TNaming_Builder* aBuilder = builder(0);
+        TDF_Label aShapeLab = aBuilder->NamedShape()->Label();
+        Handle(TDF_Reference) aRef;
+        if (aShapeLab.FindAttribute(TDF_Reference::GetID(), aRef)) {
+          // Store only in case if it does not have reference.
+          continue;
+        }
+
+        // Check if new shape was already stored.
+        if (isAlreadyStored(aBuilder, anOldSubShape_, aNewShape_)) continue;
+
+        if (!aBuilder->NamedShape().IsNull() &&
+            aBuilder->NamedShape()->Evolution() != TNaming_GENERATED) {
+          myBuilders.erase(0); // clear old builder to avoid different evolutions crash
+          aBuilder = builder(0);
+        }
+        aBuilder->Generated(anOldSubShape_, aNewShape_);
+      } else {
         int aTag = getGenerationTag(aNewShape_);
         if (aTag == INVALID_TAG) return;
         builder(aTag)->Generated(anOldSubShape_, aNewShape_);
diff --git a/src/ModelAPI/CMakeLists.txt b/src/ModelAPI/CMakeLists.txt
index 19fa6c522..99132fd2e 100644
--- a/src/ModelAPI/CMakeLists.txt
+++ b/src/ModelAPI/CMakeLists.txt
@@ -238,4 +238,5 @@ ADD_UNIT_TESTS(TestConstants.py
                TestSaveOpen2.py
                TestSelectionInitialization.py
                Test2828.py
+               TestSelectionMerge.py
 )
diff --git a/src/ModelAPI/Test/TestSelectionMerge.py b/src/ModelAPI/Test/TestSelectionMerge.py
new file mode 100644
index 000000000..7baee9948
--- /dev/null
+++ b/src/ModelAPI/Test/TestSelectionMerge.py
@@ -0,0 +1,63 @@
+## Copyright (C) 2014-2017  CEA/DEN, EDF R&D
+##
+## This library 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 2.1 of the License, or (at your option) any later version.
+##
+## This library 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 this library; if not, write to the Free Software
+## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##
+## See http:##www.salome-platform.org/ or
+## email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
+##
+
+from salome.shaper import model
+
+model.begin()
+partSet = model.moduleDocument()
+Part_1 = model.addPart(partSet)
+Part_1_doc = Part_1.document()
+Param_H = model.addParameter(Part_1_doc, "height", "3")
+Box_1 = model.addBox(Part_1_doc, 10, 10, 10)
+ExtrusionCut_1 = model.addExtrusionCut(Part_1_doc, [], model.selection(), 0, "height", [model.selection("SOLID", "Box_1_1")])
+Sketch_1 = model.addSketch(Part_1_doc, model.selection("FACE", "Box_1_1/Top"))
+SketchLine_1 = Sketch_1.addLine(6, 1, 4, 1)
+SketchLine_1.setName("SketchLine_3")
+SketchLine_1.result().setName("SketchLine_3")
+SketchLine_2 = Sketch_1.addLine(5, -1, 4, 1)
+SketchLine_2.setName("SketchLine_2")
+SketchLine_2.result().setName("SketchLine_2")
+SketchConstraintCoincidence_1 = Sketch_1.setCoincident(SketchLine_1.endPoint(), SketchLine_2.endPoint())
+SketchLine_3 = Sketch_1.addLine(5, -1, 6, 1)
+SketchLine_3.setName("SketchLine_4")
+SketchLine_3.result().setName("SketchLine_4")
+SketchConstraintCoincidence_2 = Sketch_1.setCoincident(SketchLine_2.startPoint(), SketchLine_3.startPoint())
+SketchConstraintCoincidence_3 = Sketch_1.setCoincident(SketchLine_1.startPoint(), SketchLine_3.endPoint())
+ExtrusionCut_1.setNestedSketch(Sketch_1)
+Group_1 = model.addGroup(Part_1_doc, [model.selection("FACE", "ExtrusionCut_1_1/Modified_Face&Box_1_1/Left")])
+model.do()
+groupSelectionList = Group_1.feature().selectionList("group_list")
+assert(groupSelectionList.size() == 1)
+# cut the face fully
+Param_H.setValue(10)
+model.do()
+assert(groupSelectionList.size() == 2)
+# merge the face back
+Param_H.setValue(2)
+# split again
+Param_H.setValue(10)
+model.do()
+assert(groupSelectionList.size() == 2)
+# merge the face back
+Param_H.setValue(2)
+model.end()
+assert(groupSelectionList.size() == 1)
+
+assert(model.checkPythonDump())
diff --git a/src/Selector/Selector_FilterByNeighbors.cpp b/src/Selector/Selector_FilterByNeighbors.cpp
index e98899b66..47c43915c 100644
--- a/src/Selector/Selector_FilterByNeighbors.cpp
+++ b/src/Selector/Selector_FilterByNeighbors.cpp
@@ -42,19 +42,32 @@ static void findNeighbors(const TopoDS_Shape theContext, const TopoDS_Shape theV
   const int theLevel, TopTools_MapOfShape& theResult)
 {
   TopAbs_ShapeEnum aConnectorType = TopAbs_VERTEX; // type of the connector sub-shapes
-  if (theValue.ShapeType() == TopAbs_FACE)
+  TopAbs_ShapeEnum aValueType = theValue.ShapeType();
+  if (aValueType == TopAbs_FACE)
     aConnectorType = TopAbs_EDGE;
+  else if (aValueType == TopAbs_COMPOUND) { // for geometrical naming: compound of faces
+    TopExp_Explorer anExp(theValue, TopAbs_FACE);
+    if (anExp.More()) {
+      aConnectorType = TopAbs_EDGE;
+      aValueType = TopAbs_FACE;
+    } else {
+      aValueType = TopAbs_EDGE;
+    }
+  }
   TopTools_MapOfShape aNBConnectors; // connector shapes that already belong to neighbors
-  for(TopExp_Explorer aValExp(theValue, aConnectorType); aValExp.More(); aValExp.Next()) {
+  for(TopExp_Explorer aValExp(theValue, aConnectorType); aValExp.More(); aValExp.Next())
     aNBConnectors.Add(aValExp.Current());
-  }
 
   TopTools_MapOfShape alreadyProcessed;
-  alreadyProcessed.Add(theValue);
+  if (aValueType == theValue.ShapeType())
+    alreadyProcessed.Add(theValue);
+  else
+    for(TopExp_Explorer aValExp(theValue, aValueType); aValExp.More(); aValExp.Next())
+      alreadyProcessed.Add(aValExp.Current());
 
   for(int aLevel = 1; aLevel <= theLevel; aLevel++) {
     TopoDS_ListOfShape aGoodCandidates;
-    TopExp_Explorer aCandidate(theContext, theValue.ShapeType());
+    TopExp_Explorer aCandidate(theContext, aValueType);
     for(; aCandidate.More(); aCandidate.Next()) {
       if (alreadyProcessed.Contains(aCandidate.Current()))
         continue;
@@ -102,18 +115,16 @@ static const TopoDS_Shape findNeighbor(const TopoDS_Shape theContext,
     if (aNBIter->second == aMinLevel) {
       TopTools_MapOfShape aThisNBs;
       findNeighbors(theContext, aNBIter->first, aMinLevel, aThisNBs);
-      // aMatches must contain common part of all NBs lists
-      for(TopTools_MapOfShape::Iterator aThisNB(aThisNBs); aThisNB.More(); aThisNB.Next()) {
-        if (aFirst) {
+      if (aFirst) { // aMatches must contain common part of all NBs lists
+        for(TopTools_MapOfShape::Iterator aThisNB(aThisNBs); aThisNB.More(); aThisNB.Next()) {
           aMatches.Append(aThisNB.Value());
-        } else {
-          // remove all in aMatches which are not in this NBs
-          for(TopoDS_ListOfShape::Iterator aMatch(aMatches); aMatch.More(); ) {
-            if (aThisNBs.Contains(aMatch.Value())) {
-              aMatch.Next();
-            } else {
-              aMatches.Remove(aMatch);
-            }
+        }
+      } else { // remove all in aMatches which are not in this NBs
+        for(TopoDS_ListOfShape::Iterator aMatch(aMatches); aMatch.More(); ) {
+          if (aThisNBs.Contains(aMatch.Value())) {
+            aMatch.Next();
+          } else {
+            aMatches.Remove(aMatch);
           }
         }
       }
@@ -155,6 +166,7 @@ static const TopoDS_Shape findNeighbor(const TopoDS_Shape theContext,
           } else
             return TopoDS_Shape();
         }
+        break; // no more NBs with higher levels
       }
       if (!aLevelNBs.IsEmpty()) {
         TopTools_MapOfShape aNBsOfCandidate;
diff --git a/src/SketchPlugin/Test/Test2119.py b/src/SketchPlugin/Test/Test2119.py
index e9f70c2c6..3f177b917 100644
--- a/src/SketchPlugin/Test/Test2119.py
+++ b/src/SketchPlugin/Test/Test2119.py
@@ -98,12 +98,12 @@ ExtrusionCut_1 = model.addExtrusionCut(Part_1_doc, [model.selection("WIRE", "Ske
 Sketch_3 = model.addSketch(Part_1_doc, model.selection("FACE", "ExtrusionCut_1_1/Modified_Face&ExtrusionCut_1_1/From_Face"))
 SketchProjection_2 = Sketch_3.addProjection(model.selection("VERTEX", "ExtrusionCut_1_1/Generated_Vertex&ExtrusionCut_1_1/From_Face"), False)
 SketchPoint_3 = SketchProjection_2.createdFeature()
-SketchProjection_3 = Sketch_3.addProjection(model.selection("EDGE", "ExtrusionCut_1_1/Generated_Edge&ExtrusionCut_1_1/From_Face&weak_name_2"), False)
+SketchProjection_3 = Sketch_3.addProjection(model.selection("EDGE", "([ExtrusionCut_1_1/Modified_Face&Sketch_1/SketchArc_1_2][ExtrusionCut_1_1/Modified_Face&Sketch_1/SketchLine_9])([Extrusion_1_1/From_Face][ExtrusionCut_1_1/Modified_Face&Sketch_1/SketchLine_9])2([Extrusion_1_1/From_Face][ExtrusionCut_1_1/Modified_Face&Sketch_1/SketchArc_1_2])2([ExtrusionCut_1_1/Modified_Face&Extrusion_1_1/To_Face][ExtrusionCut_1_1/Modified_Face&Sketch_1/SketchLine_9])2"), False)
 SketchLine_11 = SketchProjection_3.createdFeature()
 SketchArc_3 = Sketch_3.addArc(-15, 35, -15, 46.0103340429751, -17.02045759563166, 24.17663606626138, True)
 SketchConstraintCoincidence_16 = Sketch_3.setCoincident(SketchPoint_3.result(), SketchArc_3.center())
 SketchConstraintCoincidence_17 = Sketch_3.setCoincident(SketchLine_11.result(), SketchArc_3.startPoint())
-SketchProjection_4 = Sketch_3.addProjection(model.selection("EDGE", "ExtrusionCut_1_1/Generated_Edge&ExtrusionCut_1_1/From_Face&weak_name_1"), False)
+SketchProjection_4 = Sketch_3.addProjection(model.selection("EDGE", "([ExtrusionCut_1_1/Modified_Face&Sketch_1/SketchArc_1_2][ExtrusionCut_1_1/Modified_Face&Sketch_1/SketchLine_9])([Extrusion_1_1/From_Face][ExtrusionCut_1_1/Modified_Face&Sketch_1/SketchLine_9])2([Extrusion_1_1/From_Face][ExtrusionCut_1_1/Modified_Face&Sketch_1/SketchArc_1_2])2([ExtrusionCut_1_1/Modified_Face&Extrusion_1_1/To_Face][ExtrusionCut_1_1/Modified_Face&Sketch_1/SketchArc_1_2])2"), False)
 SketchArc_4 = SketchProjection_4.createdFeature()
 SketchConstraintCoincidence_18 = Sketch_3.setCoincident(SketchArc_3.endPoint(), SketchArc_4.results()[1])
 SketchLine_12 = Sketch_3.addLine(-15, 46.0103340429751, -15, 35)