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Cell.h

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    t17.geo 911 B
    // -----------------------------------------------------------------------------
    //
    //  Gmsh GEO tutorial 17
    //
    //  Anisotropic background mesh
    //
    // -----------------------------------------------------------------------------
    
    // As seen in `t7.geo', mesh sizes can be specified very accurately by providing
    // a background mesh, i.e., a post-processing view that contains the target mesh
    // sizes.
    
    // Here, the background mesh is represented as a metric tensor field defined on
    // a square. One should use bamg as 2d mesh generator to enable anisotropic
    // meshes in 2D.
    
    SetFactory("OpenCASCADE");
    
    // Create a square
    Rectangle(1) = {-2, -2, 0, 4, 4};
    
    // Merge a post-processing view containing the target anisotropic mesh sizes
    Merge "t17_bgmesh.pos";
    
    // Apply the view as the current background mesh
    Background Mesh View[0];
    
    // Use bamg
    Mesh.SmoothRatio = 3;
    Mesh.AnisoMax = 1000;
    Mesh.Algorithm = 7;