![]() In structured meshing the mesh is a regular lattice, such as an array, with implied connectivity between elements. We can simulate the strength of the bridge, or draw it on a computer screen, by performing calculations on each triangle and calculating the interactions between triangles.Ī major distinction is between structured and unstructured meshing. Meshes are composed of simple cells like triangles because, e.g., we know how to perform operations such as finite element calculations (engineering) or ray tracing (computer graphics) on triangles, but we do not know how to perform these operations directly on complicated spaces and shapes such as a roadway bridge. Meshes are used for rendering to a computer screen and for physical simulation such as finite element analysis or computational fluid dynamics. The mesh should also be fine (have small elements) in areas that are important for the subsequent calculations. Meshes are created by computer algorithms, often with human guidance through a GUI, depending on the complexity of the domain and the type of mesh desired.Ī typical goal is to create a mesh that accurately captures the input domain geometry, with high-quality (well-shaped) cells, and without so many cells as to make subsequent calculations intractable. Mesh cells are used as discrete local approximations of the larger domain. Usually the cells partition the geometric input domain. Often these cells form a simplicial complex. Mesh generation is the practice of creating a mesh, a subdivision of a continuous geometric space into discrete geometric and topological cells.
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