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iFEM: an Integrated Finite Element Methods Package in MATLAB
  • Quick-Start Guide
  • Community
  • GitHub
    • Tutorial
      • Installation
      • Quick-start: Poisson equation
    • Mesh Data Structure
      • Basic data structure
      • Boundary conditions
      • Auxiliary structures
      • Simplicial complex in 2D
      • Simplicial complex in 3D
    • Finite Element Methods
      • FEM for Poisson equation
      • Project: Linear FEM
      • FEM Workflow
      • FEM examples
    • Adaptive Finite Element Methods
      • Introduction to AFEM
      • Project: AFEM for the heat equation
    • Fast Solvers
      • Introduction to solvers
      • Solvers for Poisson-type equations
    • Mesh
      • Demo: Interface Mesh Generator
      • Interface Mesh Generator
      • Mesh Smoothing
      • Uniform refinement in 3D
      • Bisection in 2D
      • Coarsen in 2D
    • Data Structure for DoFs
      • DoF on Edges in 2D
      • DoF on Edges in 3D
    • Research and Projects
      • Math 226 Projects
      • Community Research
    • Develop
      • Development notes
      • Site logs

    Mesh

    On this page

    We explain the basic mesh data structure: (node,elem) representing a mesh, bdFlag for boundary conditions, and the auxiliary data structures for exploring the mesh. We also discuss several ordering for simplical complexes in 2-D and 3-D which is helpful for orientation dependent data structure.

    • Basic mesh data structure
    • Boundary condition
    • Auxiliary mesh data structures
    • Simplicial complex in two dimensions
    • Simplicial complex in three dimensions

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