[Gmsh] having difficulties with easy GMSH periodics problem

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 November 22, 2016, 08:51 having difficulties with easy GMSH periodics problem #1 Member   Jack Join Date: May 2015 Posts: 98 Rep Power: 10 Hi all, I have a presumably simple problem with GMSH involving specifying a periodic surface pair. Here is the code to create the error: Code: ```Point(1) = {1.34722, 1.19955, 0, 0.1}; Point(2) = {0.747222, 1.19955, 0, 0.1}; Point(3) = {0, 0.55, 0, 0.1}; Point(4) = {-0.4, 0.55, 0, 0.1}; Point(5) = {1.34722, 0.0995502, 0, 0.1}; Point(6) = {0.747222, 0.0995502, 0, 0.1}; Point(7) = {0, -0.55, 0, 0.1}; Point(8) = {-0.4, -0.55, 0, 0.1}; Line(1) = {1,5}; Line(2) = {5:8}; Line(3) = {8,4}; Line(4) = {4:1}; Line Loop(101) = {1, 2, 3, 4}; Plane Surface(201) = {101}; surfaceVector[] = Extrude {0, 0, 0.25} {Surface {201};Layers{1};Recombine;}; Periodic Surface surfaceVector[5] {208,-206,-217,4} = surfaceVector[3] {209,204,-213,-2}; Physical Volume('internal') = {1};``` I get Code: `Error : Was not able to find corresponding node 5 for periodic connection of surface 214 to 222 using the specified transformation` Any ideas? Many thanks!

 Tags gmsh, periodic bc