Salome HOME
addition of MEDCouplingUMesh::conformize2D to conformize a 2D mesh
[tools/medcoupling.git] / src / MEDCoupling_Swig / MEDCouplingBasicsTest.py
index f4e4e111bdfc65eeaca106e1f3014cb9e31251ce..2af096bf8fb0bbace3eb25fdfdc35f17382287bc 100644 (file)
@@ -1,10 +1,10 @@
 #  -*- coding: iso-8859-1 -*-
-# Copyright (C) 2007-2013  CEA/DEN, EDF R&D
+# Copyright (C) 2007-2014  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.
+# 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
@@ -2183,6 +2183,27 @@ class MEDCouplingBasicsTest(unittest.TestCase):
             pass
         pass
 
+    def testCellOrientation3(self):
+        from cmath import rect  
+
+        c = [rect(1.0, i*pi/4.0) for i in range(8)]
+        coords = [c[-1].real,c[-1].imag,  c[3].real,c[3].imag,
+                   c[5].real,c[5].imag,  c[1].real,c[1].imag]
+        connec = [0,1,2,3] 
+        baseMesh = MEDCouplingUMesh.New("circle", 2)  
+        baseMesh.allocateCells(1)
+        meshCoords = DataArrayDouble.New(coords, 4, 2)
+        baseMesh.setCoords(meshCoords)
+        baseMesh.insertNextCell(NORM_QPOLYG, connec)  # a circle
+        baseMesh.finishInsertingCells()  
+        baseMesh.changeSpaceDimension(3)
+        Oz = [0.0, 0.0, -1.0] 
+        cell_lst = baseMesh.are2DCellsNotCorrectlyOriented(Oz, False)
+        self.assertEqual(cell_lst.getNumberOfTuples(), 0)
+        Oz[2] = 1.0
+        cell_lst = baseMesh.are2DCellsNotCorrectlyOriented(Oz, False)
+        self.assertEqual(cell_lst.getNumberOfTuples(), 1)
+
     def testPolyhedronBarycenter(self):
         connN=[0,3,2,1, -1, 4,5,6,7, -1, 0,4,7,3, -1, 3,7,6,2, -1, 2,6,5,1, -1, 1,5,4,0];
         coords=[0.,0.,0., 1.,0.,0., 1.,1.,0., 0.,1.,0., 0.,0.,1., 1.,0.,1., 1.,1.,1., 0.,1.,1., 0.5, 0.5, 0.5];
@@ -10367,6 +10388,87 @@ class MEDCouplingBasicsTest(unittest.TestCase):
         self.assertEqual(expected2,d2.getValues())
         pass
 
+    def testSwig2Intersect2DMeshesQuadra1(self):
+        import cmath
+        def createDiagCircle(lX, lY, R, cells=[0,1]):  
+            """ A circle in a square box, cut along the diagonal. 
+            """    
+            c = []
+            for i in range(8):
+              c.append(cmath.rect(R, i*pi/4))
+        
+            coords = [0.0,0.0,          c[3].real,c[3].imag,       -lX/2.0, lY/2.0,
+                      0.0, lY/2.0,      lX/2.0,lY/2.0,             lX/2.0,0.0,
+                      #   6                  7                              8
+                      lX/2.0,-lY/2.0,   c[7].real,c[7].imag,       c[1].real,c[1].imag,
+                      #   9                  10                            11  
+                      c[5].real,c[5].imag,   -lX/2.0,-lY/2.0,      0.0, -lY/2.0,
+                      #   12                  13                            14
+                      -lX/2.0,0.0,         0.0,0.0,                  0.0, 0.0]
+            # Points 13 (reps. 14) are average of points (6,7) (resp (1,2))
+            coords[13*2]   = 0.5*(coords[6*2]+coords[7*2])
+            coords[13*2+1] = 0.5*(coords[6*2+1]+coords[7*2+1])
+            coords[14*2]   = 0.5*(coords[1*2]+coords[2*2])
+            coords[14*2+1] = 0.5*(coords[1*2+1]+coords[2*2+1])
+            connec  = [1,7,8,0]      # half circle up right
+            connec3 = [6,7,1,2,4,13,8,14,3,5]
+            
+            baseMesh = MEDCouplingUMesh.New("box_circle", 2)  
+            baseMesh.allocateCells(2)
+            meshCoords = DataArrayDouble.New(coords, len(coords)/2, 2)
+            meshCoords.setInfoOnComponents(["X [au]", "Y [au]"])
+            baseMesh.setCoords(meshCoords)
+            
+            if 0 in cells:
+              baseMesh.insertNextCell(NORM_QPOLYG, connec)  
+            if 1 in cells: 
+              baseMesh.insertNextCell(NORM_QPOLYG, connec3) 
+            baseMesh.finishInsertingCells()  
+            baseMesh.checkCoherency() 
+            return baseMesh 
+        
+        eps = 1.0e-7
+        m1 = createDiagCircle(1.0, 1.0, 0.5*0.90, cells=[0,1])  
+        m2 = createDiagCircle(1.0, 1.0, 0.5*0.95, cells=[0])
+        m3, _, _= MEDCouplingUMesh.Intersect2DMeshes(m1, m2, eps)
+        m3.mergeNodes(eps)
+        m3.convertDegeneratedCells()
+        m3.zipCoords()        
+        m4 = m3.deepCpy()
+        m5, _, _ = MEDCouplingUMesh.Intersect2DMeshes(m3, m4, eps)
+        m5.mergeNodes(eps)
+        # Check coordinates:
+        self.assertTrue(m3.getCoords().isEqual(m5.getCoords(), eps))
+
+    def testIntersect2DMeshesTmp7(self):
+        eps = 1.0e-8
+        coords = [-0.5,-0.5,   -0.5, 0.5, 0.5, 0.5,    0.5,-0.5]
+        connec = range(4)
+        m1 = MEDCouplingUMesh.New("box", 2)  
+        m1.allocateCells(1)
+        meshCoords = DataArrayDouble.New(coords, len(coords)/2, 2)
+        m1.setCoords(meshCoords)
+        m1.insertNextCell(NORM_POLYGON, connec)
+        m1.finishInsertingCells()  
+     
+        m2 = MEDCouplingDataForTest.buildCircle(0.25, 0.2, 0.4)
+        # Was looping indefinitly:
+        m_intersec, resToM1, resToM2 = MEDCouplingUMesh.Intersect2DMeshes(m1, m2, eps)
+        m_intersec.zipCoords()
+        coo_tgt = DataArrayDouble([-0.5, -0.5, -0.5, 0.5, 0.5, 0.5, 0.5, -0.5, -0.03284271247461901, 0.4828427124746191, 
+          -0.014575131106459124, 0.5000000000000001, 0.5, -0.11224989991991996, 0.24271243444677046, 0.5, 0.5, 0.19387505004004, 
+          -0.04799910280454185, -0.06682678787499614, -0.023843325638122054, 0.4915644577163915, 0.5, -0.30612494995996, 0.0, -0.5, 
+          -0.5, 0.0, -0.25728756555322957, 0.5, -0.023843325638122026, 0.49156445771639157, -0.04799910280454181, -0.06682678787499613], 17 ,2)
+        conn_tgt = [32, 5, 2, 6, 4, 7, 8, 9, 10, 32, 6, 3, 0, 1, 5, 4, 11, 12, 13, 14, 15, 16]
+        connI_tgt = [0, 9, 22]
+        res1_tgt  = [0, 0]
+        res2_tgt = [0, -1]
+        self.assert_(coo_tgt.isEqualWithoutConsideringStr(m_intersec.getCoords(), 1e-12))
+        self.assertEqual(conn_tgt, m_intersec.getNodalConnectivity().getValues())
+        self.assertEqual(connI_tgt, m_intersec.getNodalConnectivityIndex().getValues())
+        self.assertEqual(res1_tgt, resToM1.getValues())
+        self.assertEqual(res2_tgt, resToM2.getValues())
+        
     def testDAIBuildUnique1(self):
         d=DataArrayInt([1,2,2,3,3,3,3,4,5,5,7,7,7,19])
         e=d.buildUnique()
@@ -14039,8 +14141,247 @@ class MEDCouplingBasicsTest(unittest.TestCase):
         self.assertTrue(da.getIdsEqualTuple(2).isEqual(da.getIdsEqual(2)))
         pass
 
+    def testSwig2GaussNEStaticInfo1(self):
+        self.assertTrue(DataArrayDouble(MEDCouplingFieldDiscretizationGaussNE.GetWeightArrayFromGeometricType(NORM_TRI3)).isEqual(DataArrayDouble([0.16666666666666666,0.16666666666666666,0.16666666666666666]),1e-12))
+        self.assertTrue(DataArrayDouble(MEDCouplingFieldDiscretizationGaussNE.GetRefCoordsFromGeometricType(NORM_TRI3)).isEqual(DataArrayDouble([0.,0.,1.,0.,0.,1.]),1e-12))
+        self.assertTrue(DataArrayDouble(MEDCouplingFieldDiscretizationGaussNE.GetLocsFromGeometricType(NORM_TRI3)).isEqual(DataArrayDouble([0.16666666666666666,0.16666666666666666,0.6666666666666667,0.16666666666666666,0.16666666666666666,0.6666666666666667]),1e-12))
+        pass
+
+    def testSwigReverseNodalConnOnStructuredMesh(self):
+        # 1D - standard
+        c=MEDCouplingCMesh() ; arr=DataArrayDouble(10) ; arr.iota()
+        c.setCoordsAt(0,arr)
+        rn,rni=c.getReverseNodalConnectivity()
+        rn2,rni2=c.buildUnstructured().getReverseNodalConnectivity()
+        self.assertTrue(rn.isEqual(DataArrayInt([0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8])))
+        self.assertTrue(rni.isEqual(DataArrayInt([0,1,3,5,7,9,11,13,15,17,18])))
+        self.assertTrue(rn.isEqual(rn2)) ; self.assertTrue(rni.isEqual(rni2))
+        # 1D - limit
+        c=MEDCouplingCMesh() ; arr=DataArrayDouble(1) ; arr.iota()
+        c.setCoordsAt(0,arr)
+        rn,rni=c.getReverseNodalConnectivity()
+        rn2,rni2=c.buildUnstructured().getReverseNodalConnectivity()
+        self.assertTrue(rn.isEqual(DataArrayInt([0])))
+        self.assertTrue(rni.isEqual(DataArrayInt([0,1])))
+        self.assertTrue(rn.isEqual(rn2)) ; self.assertTrue(rni.isEqual(rni2))
+        # 1D - limit
+        c=MEDCouplingCMesh() ; arr=DataArrayDouble(0) ; arr.iota()
+        c.setCoordsAt(0,arr)
+        rn,rni=c.getReverseNodalConnectivity()
+        rn.isEqual(DataArrayInt([]))
+        rni.isEqual(DataArrayInt([0]))
+        # 2D - standard
+        c=MEDCouplingCMesh() ; arr=DataArrayDouble(5) ; arr.iota() ; arr2=DataArrayDouble(4) ; arr.iota()
+        c.setCoords(arr,arr2)
+        rn,rni=c.getReverseNodalConnectivity()
+        rn2,rni2=c.buildUnstructured().getReverseNodalConnectivity()
+        self.assertTrue(rn.isEqual(DataArrayInt([0,0,1,1,2,2,3,3,0,4,0,1,4,5,1,2,5,6,2,3,6,7,3,7,4,8,4,5,8,9,5,6,9,10,6,7,10,11,7,11,8,8,9,9,10,10,11,11])))
+        self.assertTrue(rni.isEqual(DataArrayInt([0,1,3,5,7,8,10,14,18,22,24,26,30,34,38,40,41,43,45,47,48])))
+        self.assertTrue(rn.isEqual(rn2)) ; self.assertTrue(rni.isEqual(rni2))
+        # 2D - limit
+        c=MEDCouplingCMesh() ; arr=DataArrayDouble(10) ; arr.iota() ; arr2=DataArrayDouble(1) ; arr.iota()
+        c.setCoords(arr,arr2)
+        rn,rni=c.getReverseNodalConnectivity()
+        self.assertTrue(rn.isEqual(DataArrayInt([0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8])))
+        self.assertTrue(rni.isEqual(DataArrayInt([0,1,3,5,7,9,11,13,15,17,18])))
+        # 2D - limit
+        c=MEDCouplingCMesh() ; arr=DataArrayDouble(10) ; arr.iota() ; arr2=DataArrayDouble(1) ; arr.iota()
+        c.setCoords(arr2,arr)
+        rn,rni=c.getReverseNodalConnectivity()
+        self.assertTrue(rn.isEqual(DataArrayInt([0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8])))
+        self.assertTrue(rni.isEqual(DataArrayInt([0,1,3,5,7,9,11,13,15,17,18])))
+        # 3D - standard
+        c=MEDCouplingCMesh() ; arr0=DataArrayDouble(5) ; arr0.iota() ; arr1=DataArrayDouble(3) ; arr1.iota() ; arr2=DataArrayDouble(4) ; arr2.iota()
+        c.setCoords(arr0,arr1,arr2)
+        rn,rni=c.getReverseNodalConnectivity()
+        self.assertTrue(rn.isEqual(DataArrayInt([0,0,1,1,2,2,3,3,0,4,0,1,4,5,1,2,5,6,2,3,6,7,3,7,4,4,5,5,6,6,7,7,0,8,0,1,8,9,1,2,9,10,2,3,10,11,3,11,0,4,8,12,0,1,4,5,8,9,12,13,1,2,5,6,9,10,13,14,2,3,6,7,10,11,14,15,3,7,11,15,4,12,4,5,12,13,5,6,13,14,6,7,14,15,7,15,8,16,8,9,16,17,9,10,17,18,10,11,18,19,11,19,8,12,16,20,8,9,12,13,16,17,20,21,9,10,13,14,17,18,21,22,10,11,14,15,18,19,22,23,11,15,19,23,12,20,12,13,20,21,13,14,21,22,14,15,22,23,15,23,16,16,17,17,18,18,19,19,16,20,16,17,20,21,17,18,21,22,18,19,22,23,19,23,20,20,21,21,22,22,23,23])))
+        self.assertTrue(rni.isEqual(DataArrayInt([0,1,3,5,7,8,10,14,18,22,24,25,27,29,31,32,34,38,42,46,48,52,60,68,76,80,82,86,90,94,96,98,102,106,110,112,116,124,132,140,144,146,150,154,158,160,161,163,165,167,168,170,174,178,182,184,185,187,189,191,192])))
+        rn2,rni2=c.buildUnstructured().getReverseNodalConnectivity()
+        self.assertTrue(rn.isEqual(rn2)) ; self.assertTrue(rni.isEqual(rni2))
+        pass
+
+    def testSwig2CellToNodeDiscretization1(self):
+        m=MEDCouplingCMesh() ; arr0=DataArrayDouble(5) ; arr0.iota() ; arr1=DataArrayDouble(4) ; arr1.iota() ; m.setCoords(arr0,arr1)
+        f=MEDCouplingFieldDouble(ON_CELLS) ; f.setMesh(m) ; f.setTime(1.1,5,6)
+        arr=DataArrayDouble(12) ; arr.iota()
+        arr=DataArrayDouble.Meld(arr,arr+100.) ; arr.setInfoOnComponents(["aaa","bbb"])
+        f.setArray(arr)
+        f.checkCoherency()
+        #
+        ref=DataArrayDouble([0.,0.5,1.5,2.5,3.,2.,2.5,3.5,4.5,5.,6.,6.5,7.5,8.5,9.,8.,8.5,9.5,10.5,11.])
+        ref=DataArrayDouble.Meld(ref,ref+100.) ; ref.setInfoOnComponents(["aaa","bbb"])
+        f2=f.cellToNodeDiscretization()
+        f2.checkCoherency()
+        self.assertEqual(f2.getTime()[1:],[5,6])
+        self.assertAlmostEqual(f2.getTime()[0],1.1,15)
+        self.assertEqual(f2.getMesh().getHiddenCppPointer(),m.getHiddenCppPointer())
+        self.assertTrue(f2.getArray().isEqual(ref,1e-12))
+        rn,rni=m.getReverseNodalConnectivity()
+        rni2=(rni.deltaShiftIndex()).convertToDblArr()
+        arr2=(f.getArray()[rn]).accumulatePerChunck(rni)/rni2
+        self.assertTrue(f2.getArray().isEqual(arr2,1e-12))
+        del f2
+        #
+        u=m.buildUnstructured() ; f.setMesh(u) ; del m
+        f3=f.cellToNodeDiscretization()
+        f3.checkCoherency()
+        self.assertEqual(f3.getTime()[1:],[5,6])
+        self.assertAlmostEqual(f3.getTime()[0],1.1,15)
+        self.assertEqual(f3.getMesh().getHiddenCppPointer(),u.getHiddenCppPointer())
+        self.assertTrue(f3.getArray().isEqual(ref,1e-12))
+        pass
+
+    def testSwig2GetMeshSpaceDimensionCMesh1(self):
+        c=MEDCouplingCMesh()
+        arr0=DataArrayDouble([0,1,2])
+        arr1=DataArrayDouble([0])
+        c.setCoords(arr0,arr0,arr0)
+        self.assertEqual(c.getMeshDimension(),3)
+        self.assertEqual(c.getSpaceDimension(),3)
+        #
+        c.setCoords(arr0,arr0,arr1)
+        self.assertEqual(c.getMeshDimension(),2)
+        self.assertEqual(c.getSpaceDimension(),3)
+        #
+        c.setCoords(arr0,arr0)
+        self.assertEqual(c.getMeshDimension(),2)
+        self.assertEqual(c.getSpaceDimension(),2)
+        #
+        c.setCoords(arr0,arr1)
+        self.assertEqual(c.getMeshDimension(),1)
+        self.assertEqual(c.getSpaceDimension(),2)
+        #
+        c.setCoords(arr0)
+        self.assertEqual(c.getMeshDimension(),1)
+        self.assertEqual(c.getSpaceDimension(),1)
+        #
+        c.setCoords(arr1)
+        self.assertEqual(c.getMeshDimension(),0)
+        self.assertEqual(c.getSpaceDimension(),1)
+        pass
+
+    def testSwig2BuildSpreadZonesWithPolyOnQPolyg1(self):
+        nx=6
+        ny=6
+        m=MEDCouplingCMesh()
+        arr1=DataArrayDouble(nx) ; arr1.iota()
+        arr2=DataArrayDouble(ny) ; arr2.iota()
+        m.setCoords(arr1,arr2)
+        m=m.buildUnstructured()
+        da=DataArrayInt.Range(nx-1,(nx-1)*(ny-1),nx)
+        m2=m[da] ; m2.simplexize(0)
+        dan=da.buildComplement(m.getNumberOfCells())
+        m1=m[dan]
+        m=MEDCouplingUMesh.MergeUMeshesOnSameCoords(m1,m2)
+        #
+        m.convertLinearCellsToQuadratic()
+        m1=m[::2] ; m2=m[1::2] ; m2.convertAllToPoly()
+        m=MEDCouplingUMesh.MergeUMeshesOnSameCoords(m1,m2)
+        p=m.buildSpreadZonesWithPoly()
+        self.assertTrue(p.getNodalConnectivity().isEqual(DataArrayInt([32,1,0,6,12,18,24,30,31,32,33,34,35,29,23,17,11,5,4,3,2,36,37,94,62,72,83,84,86,89,99,92,93,82,71,60,51,49,46,43,40])))
+        self.assertTrue(p.getNodalConnectivityIndex().isEqual(DataArrayInt([0,41])))
+        self.assertTrue(p.getCoords().isEqual(DataArrayDouble([0.,0.,1.,0.,2.,0.,3.,0.,4.,0.,5.,0.,0.,1.,1.,1.,2.,1.,3.,1.,4.,1.,5.,1.,0.,2.,1.,2.,2.,2.,3.,2.,4.,2.,5.,2.,0.,3.,1.,3.,2.,3.,3.,3.,4.,3.,5.,3.,0.,4.,1.,4.,2.,4.,3.,4.,4.,4.,5.,4.,0.,5.,1.,5.,2.,5.,3.,5.,4.,5.,5.,5.,0.5,0.,0.,0.5,0.5,1.,1.,0.5,1.5,0.,1.5,1.,2.,0.5,2.5,0.,2.5,1.,3.,0.5,3.5,0.,3.5,1.,4.,0.5,4.5,0.,4.5,1.,5.,0.5,1.,1.5,1.5,2.,2.,1.5,2.5,2.,3.,1.5,3.5,2.,4.,1.5,4.5,2.,5.,1.5,0.5,2.,0.,2.5,0.5,3.,1.,2.5,2.,2.5,2.5,3.,3.,2.5,3.5,3.,4.,2.5,4.5,3.,5.,2.5,0.,3.5,0.5,4.,1.,3.5,1.5,3.,1.5,4.,2.,3.5,3.,3.5,3.5,4.,4.,3.5,4.5,4.,5.,3.5,0.,4.5,0.5,5.,1.,4.5,1.5,5.,2.,4.5,2.5,4.,2.5,5.,3.,4.5,4.,4.5,4.5,5.,5.,4.5,0.,1.5,0.5,1.5,1.5,2.5,2.5,3.5,3.5,4.5,3.5,5.0],100,2),1e-13))
+        pass
+
+    def testSwig2Conformize2D1(self):
+        eps = 1.0e-8
+        coo = [0.,-0.5,0.,0.,0.5,0.,0.5,-0.5,0.25,
+               -0.1,0.25,0.,0.5,-0.1,0.,0.5,0.5,0.5,0.25,0.4,0.25,0.5,0.5,0.4]
+        conn = [5,5,2,6,4,5,6,3,0,1,5,4,5,10,8,11,9,5,11,2,1,7,10,9]
+        connI = [0,5,12,17,24]
+        m = MEDCouplingUMesh("box",2)
+        cooArr = DataArrayDouble(coo,len(coo)/2,2)
+        m.setCoords(cooArr)
+        m.setConnectivity(DataArrayInt(conn),DataArrayInt(connI))
+        m.mergeNodes(eps)
+        m.checkCoherency()
+        self.assertTrue(m.conformize2D(eps).isEqual(DataArrayInt([3])))
+        self.assertEqual(m.getCoords().getHiddenCppPointer(),cooArr.getHiddenCppPointer()) # check that coordinates remain the same here
+        self.assertTrue(m.getNodalConnectivity().isEqual(DataArrayInt([5,5,2,6,4,5,6,3,0,1,5,4,5,10,8,11,9,5,11,2,5,1,7,10,9])))
+        self.assertTrue(m.getNodalConnectivityIndex().isEqual(DataArrayInt([0,5,12,17,25])))
+        pass
+
+    def testSwig2Conformize2D2(self):
+        eps = 1.0e-8
+        coo=DataArrayDouble([-10,-6,0,-6,0,0,7,0,-10,2,0,2,0,6,7,6,0,8,7,8,-10,12,-4,12,0,12,0,11,7,11,-4,16,0,16,7,16],18,2)
+        conn=DataArrayInt([2,3,7,6, 13,16,17,14, 4,10,12,5, 9,14,13,8, 8,9,7,6, 5,4,0,1, 16,12,11,15])
+        m=MEDCoupling1SGTUMesh("mesh",NORM_QUAD4)
+        m.setCoords(coo)
+        m.setNodalConnectivity(conn)
+        m=m.buildUnstructured()
+        self.assertTrue(m.conformize2D(eps).isEqual(DataArrayInt([0,1,2,5])))
+        self.assertEqual(m.getCoords().getHiddenCppPointer(),coo.getHiddenCppPointer()) # check that coordinates remain the same here
+        self.assertTrue(m.getNodalConnectivity().isEqual(DataArrayInt([5,2,3,7,6,5, 5,13,12,16,17,14, 5,4,10,11,12,13,8,6,5, 4,9,14,13,8, 4,8,9,7,6, 5,5,4,0,1,2, 4,16,12,11,15])))
+        self.assertTrue(m.getNodalConnectivityIndex().isEqual(DataArrayInt([0,6,12,21,26,31,37,42])))
+        pass
+
+    def testSwigSplit2DCells1(self):
+        coo=DataArrayDouble([[0,0],[1,0],[1,1],[0,1],[0.5,0],[1,0.5],[0.5,1],[0.,0.5]])
+        m=MEDCouplingUMesh("mesh",2)
+        m.setCoords(coo)
+        m.allocateCells()
+        m.insertNextCell(NORM_QUAD8,[0,1,2,3,4,5,6,7])
+        _,d,di,_,_=m.buildDescendingConnectivity()
+        subb=DataArrayInt([5])
+        subbi=DataArrayInt([0,0,1,1,1])
+        mid=DataArrayInt([-1,-1])
+        midi=DataArrayInt([0,0,2,2,2])
+        self.assertEqual(2,m.split2DCells(d,di,subb,subbi,mid,midi))
+        self.assertTrue(m.getNodalConnectivity().isEqual(DataArrayInt([32,0,1,5,2,3,4,8,9,6,7])))
+        self.assertTrue(m.getNodalConnectivityIndex().isEqual(DataArrayInt([0,11])))
+        self.assertTrue(m.getCoords().isEqual(DataArrayDouble([[0,0],[1,0],[1,1],[0,1],[0.5,0],[1,0.5],[0.5,1],[0.,0.5],[1.,0.25],[1.,0.75]]),1e-12))
+        pass
+
+    def testSwig2Conformize2D3(self):
+        eps = 1.0e-8
+        coo=DataArrayDouble([-10,-6,0,-6,0,0,7,0,-10,2,0,2,0,6.5,7,6.5,0,8,7,8,-10,12,-4,12,0,12,0,11,7,11,-4,16,0,16,7,16],18,2)
+        conn=DataArrayInt([2,3,7,6, 13,16,17,14, 4,10,12,5, 9,14,13,8, 8,9,7,6, 5,4,0,1, 16,12,11,15])
+        m=MEDCoupling1SGTUMesh("mesh",NORM_QUAD4)
+        m.setCoords(coo)
+        m.setNodalConnectivity(conn)
+        m=m.buildUnstructured()
+        m.convertLinearCellsToQuadratic()
+        self.assertTrue(m.conformize2D(eps).isEqual(DataArrayInt([0,1,2,5])))
+        self.assertTrue(m.getCoords().getHiddenCppPointer()!=coo.getHiddenCppPointer()) # coordinates are not the same here contrary to testSwig2Conformize2D2 ...
+        self.assertTrue(m.getCoords()[:18].isEqual(coo,1e-12)) # but the 18 first nodes are the same
+        pass
+
+    def testSwig2Conformize2D4(self):
+        eps = 1.0e-8
+        coo=DataArrayDouble([-10,-6,0,-6,0,0,7,0,-10,2,0,2,0,6.5,7,6.5,0,8,7,8,-10,12,-4,12,0,12,0,11,7,11,-4,16,0,16,7,16],18,2)
+        conn=DataArrayInt([2,3,7,6, 13,16,17,14, 4,10,12,5, 9,14,13,8, 8,9,7,6, 5,4,0,1, 16,12,11,15])
+        m=MEDCoupling1SGTUMesh("mesh",NORM_QUAD4)
+        m.setCoords(coo)
+        m.setNodalConnectivity(conn)
+        m=m.buildUnstructured()
+        m.convertLinearCellsToQuadratic()
+        self.assertEqual(42,m.getNumberOfNodes())
+        oldCoo=m.getCoords().deepCpy()
+        m.conformize2D(eps)
+        self.assertTrue(m.getCoords()[:42].isEqual(oldCoo,1e-12))
+        self.assertTrue(m.getNodalConnectivity().isEqual(DataArrayInt([32,2,3,7,6,5,18,19,20,42,43,32,13,12,16,17,14,44,38,23,24,25,32,4,10,11,12,13,8,6,5,26,45,39,44,31,34,42,29,8,9,14,13,8,30,25,31,32,8,8,9,7,6,32,33,20,34,32,5,4,0,1,2,29,35,36,46,43,8,16,12,11,15,38,39,40,41])))
+        self.assertTrue(m.getNodalConnectivityIndex().isEqual(DataArrayInt([0,11,22,39,48,57,68,77])))
+        self.assertTrue(m.getCoords().isEqual(DataArrayDouble([[-10.,-6.0],[0.,-6.0],[0.,0.0],[7.,0.0],[-10.,2.0],[0.,2.0],[0.,6.5],[7.,6.5],[0.,8.0],[7.,8.0],[-10.,12.0],[-4.,12.0],[0.,12.0],[0.,11.0],[7.,11.0],[-4.,16.0],[0.,16.0],[7.,16.0],[3.5, 0.0],[7.,3.25],[3.5, 6.5],[0.,3.25],[0.,13.5],[3.5, 16.0],[7.,13.5],[3.5, 11.0],[-10.,7.0],[-5.,12.0],[0.,7.0],[-5.,2.0],[7.,9.5],[0.,9.5],[3.5, 8.0],[7.,7.25],[0.,7.25],[-10.,-2.0],[-5.,-6.0],[0.,-2.0],[0.,14.0],[-2.,12.0],[-4.,14.0],[-2.,16.0],[0.,4.25],[0.,1.0],[0.,11.5],[-7.,12.0],[0.,-3.]]),1e-12))
+        pass
+
+    def testSwig2Conformize2D5(self):
+        eps=1e-8
+        coo=DataArrayDouble([[2,2],[2,-6],[10,-2],[-2,-2],[6,0],[6,-4],[2,7],[2,4.5],[-1.4641016151377544,0],[-1.950753362380551,-1.3742621398390762],[-7,-3],[-0.8284271247461898,-4.82842712474619],[0.26794919243112281,3.5],[0,1.4641016151377548],[-4.4753766811902755,-2.1871310699195381],[-3.9142135623730949,-3.9142135623730949],[-1.8042260651806146,-3.23606797749979]])
+        m=MEDCouplingUMesh("mesh",2)
+        m.allocateCells()
+        m.setCoords(coo)
+        m.insertNextCell(NORM_TRI6,[1,2,0,5,4,3])
+        m.insertNextCell(NORM_TRI6,[8,6,0,12,7,13])
+        m.insertNextCell(NORM_TRI6,[11,9,10,16,14,15])
+        self.assertTrue(m.conformize2D(eps).isEqual(DataArrayInt([0])))
+        self.assertTrue(m.getCoords().isEqual(DataArrayDouble([2.,2.,2.,-6.,10.,-2.,-2.,-2.,6.,0.,6.,-4.,2.,7.,2.,4.5,-1.4641016151377544,0.,-1.950753362380551,-1.3742621398390762,-7.,-3.,-0.8284271247461898,-4.82842712474619,0.2679491924311228,3.5,8.881784197001252e-16,1.4641016151377548,-4.4753766811902755,-2.187131069919538,-3.914213562373095,-3.914213562373095,-1.8042260651806146,-3.236067977499789,-1.7705659643687133,-0.6647725630649153,0.46926627053963865,-5.695518130045146],19,2),1e-12))
+        self.assertTrue(m.getNodalConnectivity().isEqual(DataArrayInt([32,1,2,0,8,9,11,5,4,13,17,16,18,6,8,6,0,12,7,13,6,11,9,10,16,14,15])))
+        self.assertTrue(m.getNodalConnectivityIndex().isEqual(DataArrayInt([0,13,20,27])))
+        pass
+
     def setUp(self):
         pass
     pass
 
-unittest.main()
+if __name__ == '__main__':
+    unittest.main()