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postProcess/getFacet2D.c

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Facet Extraction (2D)

Restores a Basilisk snapshot and outputs VOF interface facets for visualization or post-processing.

Usage

./getFacet2D <input_file>

Dependencies

  • utils.h
  • output.h
  • fractions.h

Author

Vatsal Sanjay ([email protected]) CoMPhy Lab Date: 2025-05-13

#include "utils.h"
#include "output.h"
#include "fractions.h"

Globals

  • f[]: Volume fraction field (liquid phase)
  • filename[80]: Input snapshot filename
scalar f[];
char filename[80];

main()

Restores a snapshot and writes interface facets to stderr.

Args

  • a: Number of CLI arguments.
  • arguments[1]: Input snapshot filename.

Returns

  • 0 on success.

Notes

  • Output uses output_facets() and is written to ferr.
int main(int a, char const *arguments[]) {
  // Parse command line argument for input filename
  sprintf(filename, "%s", arguments[1]);

  // Restore simulation state from file
  restore(file = filename);

  // Set output destination to stderr
  FILE * fp = ferr;

  // Extract and output facets from volume fraction field
  output_facets(f, fp);

  // Ensure all output is written
  fflush(fp);

  // Close file pointer (stderr alias)
  fclose(fp);

  return 0;
}