Package: gmsh Version: 2.8.4+dfsg-1+b1 Severity: normal Merging a .geo file and then translating the volume in it results in a wrong mesh.
I've attached an example: the unit cube (0,0,0) to (1,1,1) is translated along the z-axis. The translated cube is defined by the corners (0,0,1) and (1,1,2). However the resulting mesh has a node on the z=0 plane (where z should be 1) and another on the z=1 plane that belongs on the z=2 plane. Run "gmsh -3 cube1.geo" or choose Mesh->3D in the GUI to reproduce the problem. One has to rotate the cube to see the problem. Or look at these nodes in the .msh file: 9 0.5 0.5 0 10 0.5 0.5 1 The problem does not happen when using Include instead of Merge or when including the contents of unit-cube.geo directly. Ansgar -- System Information: Debian Release: jessie/sid APT prefers testing APT policy: (500, 'testing'), (100, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 3.14-1-amd64 (SMP w/8 CPU cores) Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages gmsh depends on: ii libann0 1.1.2+doc-5 ii libblas3 [libblas.so.3] 1.2.20110419-7 ii libc6 2.19-1 ii libfltk-gl1.3 1.3.2-5 ii libfltk-images1.3 1.3.2-5 ii libfltk1.3 1.3.2-5 ii libgcc1 1:4.9.0-5 ii libgl1-mesa-glx [libgl1] 10.1.4-1 ii libgl2ps0 1.3.8-1 ii libglu1-mesa [libglu1] 9.0.0-2 ii libjpeg8 8d-2 ii liblapack3 [liblapack.so.3] 3.5.0-2 ii libmed1 3.0.6-5 ii liboce-foundation8 0.15-4 ii liboce-modeling8 0.15-4 ii libopenmpi1.6 1.6.5-8 ii libpng12-0 1.2.50-1 ii libstdc++6 4.9.0-5 ii libtet1.5 1.5.0-3 ii libx11-6 2:1.6.2-2 ii mpi-default-bin 1.0.2+nmu1 Versions of packages gmsh recommends: pn gmsh-doc <none> gmsh suggests no packages. -- no debconf information
Merge "unit-cube.geo"; Translate{0,0,1}{ Volume{1}; } Mesh.CharacteristicLengthMin = 1;
Point(1) = {0, 0, 0}; Point(2) = {1, 0, 0}; Point(3) = {1, 1, 0}; Point(4) = {0, 1, 0}; Point(5) = {0, 0, 1}; Point(6) = {1, 0, 1}; Point(7) = {1, 1, 1}; Point(8) = {0, 1, 1}; Line(1) = {1,2}; Line(2) = {2,3}; Line(3) = {3,4}; Line(4) = {4,1}; Line(5) = {5,6}; Line(6) = {6,7}; Line(7) = {7,8}; Line(8) = {8,5}; Line(9) = {1,5}; Line(10) = {2,6}; Line(11) = {3,7}; Line(12) = {4,8}; Line Loop(1) = {1,2,3,4}; Line Loop(2) = {5,6,7,8}; Line Loop(3) = {1,10,-5,-9}; Line Loop(4) = {2,11,-6,-10}; Line Loop(5) = {3,12,-7,-11}; Line Loop(6) = {4,9,-8,-12}; Plane Surface(1) = {1}; Plane Surface(2) = {2}; Plane Surface(3) = {3}; Plane Surface(4) = {4}; Plane Surface(5) = {5}; Plane Surface(6) = {6}; Surface Loop(1) = {1,2,3,4,5,6}; Volume (1) = {1};
$MeshFormat 2.2 0 8 $EndMeshFormat $Nodes 14 1 0 0 1 2 1 0 1 3 1 1 1 4 0 1 1 5 0 0 2 6 1 0 2 7 1 1 2 8 0 1 2 9 0.5 0.5 0 10 0.5 0.5 1 11 0.5 0 1.5 12 1 0.5 1.5 13 0.5 1 1.5 14 0 0.5 1.5 $EndNodes $Elements 64 1 15 2 0 1 1 2 15 2 0 2 2 3 15 2 0 3 3 4 15 2 0 4 4 5 15 2 0 5 5 6 15 2 0 6 6 7 15 2 0 7 7 8 15 2 0 8 8 9 1 2 0 1 1 2 10 1 2 0 2 2 3 11 1 2 0 3 3 4 12 1 2 0 4 4 1 13 1 2 0 5 5 6 14 1 2 0 6 6 7 15 1 2 0 7 7 8 16 1 2 0 8 8 5 17 1 2 0 9 1 5 18 1 2 0 10 2 6 19 1 2 0 11 3 7 20 1 2 0 12 4 8 21 2 2 0 1 2 3 9 22 2 2 0 1 1 2 9 23 2 2 0 1 3 4 9 24 2 2 0 1 1 9 4 25 2 2 0 2 6 10 5 26 2 2 0 2 10 8 5 27 2 2 0 2 7 10 6 28 2 2 0 2 8 10 7 29 2 2 0 3 6 11 2 30 2 2 0 3 2 11 1 31 2 2 0 3 11 6 5 32 2 2 0 3 11 5 1 33 2 2 0 4 3 12 2 34 2 2 0 4 12 6 2 35 2 2 0 4 7 12 3 36 2 2 0 4 12 7 6 37 2 2 0 5 4 13 3 38 2 2 0 5 13 7 3 39 2 2 0 5 8 13 4 40 2 2 0 5 13 8 7 41 2 2 0 6 4 14 8 42 2 2 0 6 1 14 4 43 2 2 0 6 5 8 14 44 2 2 0 6 1 5 14 45 4 2 0 1 10 7 12 3 46 4 2 0 1 10 1 5 14 47 4 2 0 1 10 6 2 12 48 4 2 0 1 4 10 8 14 49 4 2 0 1 10 7 3 13 50 4 2 0 1 10 6 11 2 51 4 2 0 1 10 4 8 13 52 4 2 0 1 1 10 5 11 53 4 2 0 1 1 10 2 9 54 4 2 0 1 1 4 10 9 55 4 2 0 1 4 3 10 9 56 4 2 0 1 10 3 2 9 57 4 2 0 1 11 1 10 2 58 4 2 0 1 1 4 14 10 59 4 2 0 1 3 12 10 2 60 4 2 0 1 13 4 3 10 61 4 2 0 1 8 10 13 7 62 4 2 0 1 6 5 10 11 63 4 2 0 1 7 6 10 12 64 4 2 0 1 10 5 8 14 $EndElements
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