fluidity/libmba2d/status.fd at main · FluidityProject/fluidity · GitHub

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C ==========================================================
C The mesh generation can be controled in a few ways.
C The main way is through the metric field. However, some
C mesh features may be missing. In order to ensure additional
C (optinal) mesh features, we introduce integer variable
C status. The non-zero bits of this variable turn on the
C following mesh features:
C
C  bit 01 - (ANIForbidBoundaryElements=1): the final mesh will
C           not contain triangles with all vertices on the
C           domain boundary.
C
C  bit 02 - (ANIUse2ArmRule=2): each boundary point of the mesh
C           may be connected to an inner mesh point with at
C           most 2 mesh edges.
C
C           The feature allows more stable implementation of
C           Hessian recovering algorithms.
C
C  bit 03 - (ANIFixBoundaryEdges=4): the boundary edges will be
C           added to the list of fixed edges.
C
C           The feature may be useful for generating multi-block
C           meshes.
C
C  bit 04 - (ANIDeleteTemporaryEdges=8): the new edges created by
C           the algorithm will be removed from the final mesh.
C           The new egdes may include material interfaces.
C
C  bit 05 - (ANIFixBoundaryPoints=16): the boundary points will be
C           added to the list of fixed points.
C
C           The feature may be useful for preserving complex
C           geometries in anisotropic metric fields.
C
C  bit 06 - (reserved=32)
C
C ==========================================================
C The following bits reflect mesh features discovered by
C the algorithm. We keep it for the user disposal.
C
C  bit 07 - (ANIMultiConnectedGeometry=64): the geometry is
C           multi-connected.
C
c  bit 08 - (reserved=128)
C
C
C ==========================================================
C The following bits are under development. They will be
C automatically removed from the initial value of status.
C
C  bit 09 - (ANISmoothMesh=256): the final mesh is supposed
C           to be smooth. The feature may be useful for
C           extremely anisotropic meshes. It is not stable
C           at the moment.
C
C  bit 10 - (ANIUntangleMesh=512): the initial mesh may be
C           tangled. This feature will allow to fix the
C           problem.
C
C  bit 11 - (reserved=1024):
C
C
C ==========================================================
C *** Remarks:
C       1. Some features can be automatically turned on/off
C          if the initial grid does not satisfy oprions set
C          up by the user.
C
C       2. The default features (when flagAuto=.TRUE.) are
C          ANIUse2ArmRule & ANIDeleteTemporaryEdges
C
C ==========================================================
      Integer   ANIForbidBoundaryElements
      Parameter(ANIForbidBoundaryElements = 1)

      Integer   ANIUse2ArmRule
      Parameter(ANIUse2ArmRule = 2)

      Integer   ANIFixBoundaryEdges
      Parameter(ANIFixBoundaryEdges = 4)

      Integer   ANIDeleteTemporaryEdges
      Parameter(ANIDeleteTemporaryEdges = 8)

      Integer   ANIFixBoundaryPoints
      Parameter(ANIFixBoundaryPoints = 16)

      Integer   ANIMultiConnectedGeometry
      Parameter(ANIMultiConnectedGeometry = 64)

      Integer   ANISmoothMesh
      Parameter(ANISmoothMesh = 256)

      Integer   ANIUntangleMesh
      Parameter(ANIUntangleMesh = 512)