mcntest.C

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 * Rocstar Simulation Suite                                          *
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// $Id: mcntest.C,v 1.3 2008/12/06 08:43:24 mtcampbe Exp $

#include "roccom.h"
#include "surfbasic.h"
#include "IM_Reader.h"
#include <iostream>

using namespace std;

COM_EXTERN_MODULE( Rocout);
COM_EXTERN_MODULE( Rocsurf);
COM_EXTERN_MODULE( Rocblas);

int main(int argc, char *argv[]) {
  COM_init( &argc, &argv);

  if ( argc != 3) {
    std::cout << "Usage:\n\tTo run in serial: " << argv[0] 
              << " <surffile> <hdffile> " << endl;
    std::cout << "\n\tTo run in parallel: <mpirun-command> " << argv[0] 
              << " -com-mpi <Rocin control file> <hdfoutput-prefix> " << endl;
    exit(-1);
  }

  std::cout << "Reading surface mesh file \"" << argv[1] << '"' << endl;

  std::string fname(argv[1]), wname;
  string::size_type n0 = fname.find_last_of( "/");

  if ( n0 != std::string::npos) 
    fname = fname.substr( n0+1, fname.size());

  string::size_type ni;
  ni = fname.find_first_of( ".:-*[]?\\\"\'0123456789");
  COM_assertion_msg(ni, "File name must start with a letter");

  if ( ni == std::string::npos) {
    wname = fname;
  }
  else {
    while (fname[ni-1]=='_') --ni; // Remove the '_' at the end.
    wname = fname.substr( 0, ni);
  }

  std::cout << "Creating window \"" << wname << '"' << endl;

  // Read in IM/HDF format
  int err = IM_Reader().read_winmesh( argv[1], wname); 
  COM_assertion( err>=0);

  // Allocate memory for normals
  const string mcn = wname+".mcn";
  COM_new_attribute(mcn.c_str(), 'n', COM_DOUBLE, 3, "");
  COM_resize_array( mcn.c_str());

  const string lbmcn = wname+".lbmcn";
  COM_new_attribute(lbmcn.c_str(), 'n', COM_DOUBLE, 3, "");
  COM_resize_array( lbmcn.c_str());

  COM_window_init_done( wname.c_str());
  int pmesh_hdl = COM_get_attribute_handle( (wname+".pmesh").c_str());
  
  COM_LOAD_MODULE_STATIC_DYNAMIC(Rocout, "OUT");
  COM_LOAD_MODULE_STATIC_DYNAMIC( Rocsurf, "SURF");

  int SURF_init = COM_get_function_handle( "SURF.initialize");
  COM_call_function( SURF_init, &pmesh_hdl);

  std::cout << "Computing mean-curvature normals..." << endl;

  int SURF_mcn = COM_get_function_handle( "SURF.compute_mcn");
  int mcn_hdl = COM_get_attribute_handle( mcn.c_str());
  int lbmcn_hdl = COM_get_attribute_handle( lbmcn.c_str());

  COM_call_function( SURF_mcn, &mcn_hdl, &lbmcn_hdl);

  std::cout << "Output window into file..." << endl;

  // Output normals
  int OUT_set = COM_get_function_handle( "OUT.set_option");
  int OUT_write = COM_get_function_handle( "OUT.write_attribute");

  COM_call_function( OUT_set, "mode", "w");
  int all_hdl = COM_get_attribute_handle( (wname+".all").c_str());
  COM_call_function( OUT_write, argv[2], &all_hdl, 
                     (char*)wname.c_str(), "000");
  
  COM_finalize();
}