--- /dev/null
+## 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>
+##
+# -*- coding: utf-8 -*-
+
+from salome.shaper import model
+
+model.begin()
+partSet = model.moduleDocument()
+Part_1 = model.addPart(partSet)
+Part_1_doc = Part_1.document()
+ParamA = model.addParameter(Part_1_doc, "a", "200")
+Sketch_1 = model.addSketch(Part_1_doc, model.defaultPlane("XOY"))
+SketchLine_1 = Sketch_1.addLine(19.66215729983772, 107.3479424462301, -0.3378427001622813, 107.3479424462301)
+SketchLine_2 = Sketch_1.addLine(-0.3378427001622813, 107.3479424462301, -0.3378427001622813, 467.3479424462301)
+SketchConstraintCoincidence_1 = Sketch_1.setCoincident(SketchLine_1.endPoint(), SketchLine_2.startPoint())
+SketchLine_3 = Sketch_1.addLine(-0.3378427001622813, 467.3479424462301, 49.66215729983772, 467.3479424462301)
+SketchConstraintCoincidence_2 = Sketch_1.setCoincident(SketchLine_2.endPoint(), SketchLine_3.startPoint())
+SketchLine_4 = Sketch_1.addLine(-0.3378427001622813, 307.3479424462301, 29.66215729983772, 307.3479424462301)
+SketchConstraintCoincidence_3 = Sketch_1.setCoincident(SketchLine_4.startPoint(), SketchLine_2.result())
+SketchConstraintHorizontal_1 = Sketch_1.setHorizontal(SketchLine_3.result())
+SketchConstraintHorizontal_2 = Sketch_1.setHorizontal(SketchLine_4.result())
+SketchConstraintHorizontal_3 = Sketch_1.setHorizontal(SketchLine_1.result())
+SketchConstraintVertical_1 = Sketch_1.setVertical(SketchLine_2.result())
+SketchConstraintLength_1 = Sketch_1.setLength(SketchLine_3.result(), 50)
+SketchConstraintLength_2 = Sketch_1.setLength(SketchLine_4.result(), 30)
+SketchConstraintLength_3 = Sketch_1.setLength(SketchLine_1.result(), 20)
+SketchConstraintDistanceVertical_1 = Sketch_1.setVerticalDistance(SketchLine_1.endPoint(), SketchLine_4.startPoint(), "a")
+SketchConstraintDistanceVertical_2 = Sketch_1.setVerticalDistance(SketchLine_4.startPoint(), SketchLine_2.endPoint(), "a*0.8")
+model.do()
+Edge_1_objects = [model.selection("EDGE", "Sketch_1/SketchLine_3"), model.selection("EDGE", "Sketch_1/SketchLine_4"), model.selection("EDGE", "Sketch_1/SketchLine_1")]
+Edge_1 = model.addEdge(Part_1_doc, Edge_1_objects)
+Revolution_1_objects = [model.selection("EDGE", "Edge_1_1"), model.selection("EDGE", "Edge_1_2"), model.selection("EDGE", "Edge_1_3")]
+Revolution_1 = model.addRevolution(Part_1_doc, Revolution_1_objects, model.selection("EDGE", "Sketch_1/SketchLine_2"), 360, 0)
+Sketch_2 = model.addSketch(Part_1_doc, model.selection("FACE", "Revolution_1_2"))
+SketchCircle_1 = Sketch_2.addCircle(-8.007012574805483, 5.997620437244276, 8.148502128958617)
+model.do()
+# change the height of the second sketch plane
+ParamA.setValue(50)
+model.end()
+# check that the second sketch result is recomputed: is located in the same plane as base
+referenceY = Sketch_2.feature().selection("External").value().middlePoint().y()
+resultY = Sketch_2.feature().results()[0].shape().middlePoint().y()
+assert(referenceY == resultY)
