FreeFOAMThe Cross-Platform CFD Toolkit
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Name

freefoam-surfaceSplitNonManifolds — Takes multiply connected surface and tries to split surface at multiply connected edges by duplicating points.

Synopsis

freefoam surfaceSplitNonManifolds <Foam surface file> <surface output file> [-case <dir>] [-srcDoc] [-debug] [-doc] [-help]

DESCRIPTION

Introduces concept of - borderEdge. Edge with 4 faces connected to it. - borderPoint. Point connected to exactly 2 borderEdges. - borderLine. Connected list of borderEdges.

By duplicating borderPoints this will split borderLines. As a preprocessing step it can detect borderEdges without any borderPoints and explicitly split these triangles.

The problems in this algorithm are: - determining which two (of the four) faces form a surface. Done by walking face-edge-face while keeping and edge or point on the borderEdge borderPoint. - determining the outwards pointing normal to be used to slightly offset the duplicated point.

Uses sortedEdgeFaces quite a bit.

Is tested on simple borderLines resulting from extracting a surface from a hex mesh. Will quite possibly go wrong on more complicated border lines (i.e. ones forming a loop).

Dumps surface every so often since might take a long time to complete.

OPTIONS

<Foam surface file>
TODO Detailed description of argument.
<surface output file>
TODO Detailed description of argument.
-debug
Generate debugging output.
-case <dir>
Case directory.
-help
Display help message.
-doc
Display Doxygen API documentation page for this application.
-srcDoc
Display Doxygen source documentation page for this application.

SEE ALSO

An overview of FreeFOAM is given in freefoam(1).

AUTHOR

OpenCFD Ltd.

FREEFOAM

Part of the freefoam(1) suite.

COPYRIGHT

  • Copyright © 2008-2012 Michael Wild.
  • Copyright © 1991-2010 OpenCFD Ltd.