mesh3DSlice2bis.translate([0.,1000.,0.])
mesh3DSlice2All=MEDCouplingUMesh.MergeUMeshes([mesh3DSlice2,mesh3DSlice2bis])
mesh3DSlice2All.writeVTK("mesh3DSlice2All.vtu")
#
mesh3DSurf,desc,descIndx,revDesc,revDescIndx=mesh3D.buildDescendingConnectivity()
numberOf3DCellSharing=revDescIndx.deltaShiftIndex()
mesh3DSlice2bis.translate([0.,1000.,0.])
mesh3DSlice2All=MEDCouplingUMesh.MergeUMeshes([mesh3DSlice2,mesh3DSlice2bis])
mesh3DSlice2All.writeVTK("mesh3DSlice2All.vtu")
#
mesh3DSurf,desc,descIndx,revDesc,revDescIndx=mesh3D.buildDescendingConnectivity()
numberOf3DCellSharing=revDescIndx.deltaShiftIndex()