xyz2pov/src/xyz2pov.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>

#include "frameCount.h"
#include "atom_parser.h"
#include "pov_writer.h"


#define POV_DIR "./pov"


struct linked_xyz{
  struct coords *r;
  double Hmat[3][3];
  struct linked_xyz *next;
};

char *program_name; /*the name of the program */
int draw_bonds = 0; /* boolean to draw bonds or not */
int draw_hydrogens = 0; /*boolean to draw hydrogens */
int draw_atoms = 0; /*boolean to draw atoms */
int draw_vectors = 0; /*boolean to draw vectors */
int draw_box = 0;  // boolean to draw the periodic Box
int regenerateBonds = 0; // boolean to regenearate bonds each frame

void usage(void);
int count_tokens(char *line, char *delimiters);

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


  struct coords *out_coords;

  int i,j,k; /* loop counters */
  mode_t dir_mode = S_IRWXU;

  int generate_header = 0; /* boolean for generating the pov ray header */
  double big_x = 0;
  double big_y = 0; /* lets me know the biggest x y and z */
  double big_z = 0;
  double small_x = 0;
  double small_y = 0; /* lets me know the smallest x, y, z */
  double small_z = 0;
  int extremaSet = 0;
  double rsqr; /* the square of the diagonal */
  double diagonal; /* the diagonal length of the sim box */

  unsigned int n_atoms; /*the number of atoms in each time step */
  char read_buffer[2000]; /*the line buffer for reading */
  char *eof_test; /*ptr to see when we reach the end of the file */
  char *foo; /*the pointer to the current string token */
  FILE *in_file; /* the input file */
  FILE *out_file; /*the output file */
  char *out_prefix = NULL; /*the prefix of the output file */
  int have_prefix = 0;
  char out_name[500]; /*the output name */
  char out_format[1000];
  char *in_name = NULL; /*the name of the input file */
  unsigned int n_out = 0; /*keeps track of which output file is being written*/
  int done;
  char current_flag;
  int nFrames;
  int nZeroes;
  int nTokens;
  double count;

  int startFrame = 1;
  int endFrame;
  int span = 0;
  int currentCount = 0;
  int haveEnd = 0;

  struct linked_xyz *current_frame;
  struct linked_xyz *temp_frame;
  
  unsigned int n_interpolate = 0; /* number of frames to interpolate */
  double dx, dy, dz; /* temp variables for interpolating distances */
  double dm[3][3];
  

  char pov_dir[500]; /* the pov_dir */

  program_name = argv[0]; /*save the program name in case we need it*/
 
 
  for( i = 1; i < argc; i++){
    
    if(argv[i][0] =='-'){

      // parse the option
      
      if(argv[i][1] == '-' ){

        // parse long word options
        
        fprintf( stderr, 
                 "Invalid option \"%s\"\n", argv[i] );
        usage();
        
      }
      
      else{
        
        // parse single character options
        
        done = 0;
        j = 1;
        current_flag = argv[i][j];
        while( (current_flag != '\0') && (!done) ){
          
          switch(current_flag){

          case 'o':
            // -o <prefix> => the output prefix.

            i++;
            out_prefix = argv[i];
            have_prefix = 1;
            done = 1;
            break;

          case 'i':
            // -i <#> => the number to interpolate

            i++;
            n_interpolate = atoi( argv[i] );
            done = 1;
            break;

          case 'f':
            // -f <#> => frame to render

            i++;
            startFrame =  atoi( argv[i] );
            endFrame = startFrame;
            haveEnd = 1;
            done = 1;
            break;

          case 's':
            // -s <#> => frame to start

            i++;
            startFrame =  atoi( argv[i] );
            done = 1;
            break;

          case 'e':
            // -e <#> => frame to end

            i++;
            endFrame =  atoi( argv[i] );
            haveEnd = 1;
            done = 1;
            break;

          case 'H':
            // -h => generate a pov-ray Header
            
            generate_header = 1;
            break;

          case 'h':
            // -h => draw Hydrogens
            
            draw_hydrogens = 1;
            break;
        
          case 'b':
            // -b => draw bonds

            draw_bonds = 1;
            break;

          case 'a':
            // -a => draw the atoms

            draw_atoms = 1;
            break;

          case 'v':
            // -v => draw the vectors

            draw_vectors = 1;
            break;

          case 'r':
            // -r => regenerate bonds

            regenerateBonds = 1;
            break;

          case 'p':
            // -r => draw periodic box

            draw_box = 1;
            break;

          default:

            (void)fprintf(stderr, "Bad option \"-%c\"\n", current_flag);
            usage();
          }
          j++;
          current_flag = argv[i][j];
        }
      }
    }

    else{
      
      if( in_name != NULL ){
        fprintf( stderr, 
                 "Error at \"%s\", program does not currently support\n"
                 "more than one input file.\n"
                 "\n",
                 argv[i]);
        usage();
      }
      
      in_name = argv[i];
    }
  }
  
  if(in_name == NULL){
    usage();
  }
  
  
  in_file = fopen(in_name, "r");
  if(in_file == NULL){
    printf("Cannot open file: %s\n", in_name);
    exit(8);
  }
  

  if(access(POV_DIR, F_OK)){
    /*create the pov directory*/
    mkdir(POV_DIR, dir_mode);
  }
  strcpy(pov_dir, POV_DIR); strcat(pov_dir, "/");
  
  
  // initialize atom type parser
  
  initializeParser();
  initBondList();
  
  // count the number of frames 

  printf( "Counting the number of frames..." );
  fflush(stdout);

  nFrames = frameCount( in_name );

  printf( "done.\n"
          "%d frames found\n",
          nFrames);
  fflush(stdout);

  // create the output string

  nZeroes = 1;
  count = (double)( nFrames * (n_interpolate+1) );
  while( count >= 10.0 ){
    count /= 10.0;
    nZeroes++;
  }

  if(!have_prefix){
    out_prefix = strtok(in_name, ".");
  }

  sprintf( out_format, "%s%s-%%0%dd.pov", pov_dir, out_prefix, nZeroes );

  // start reading the first frame

  eof_test = fgets(read_buffer, sizeof(read_buffer), in_file);
  
  current_frame = (struct linked_xyz *)malloc(sizeof(struct linked_xyz));
  current_frame->next = NULL;
  

  if( haveEnd ) span = endFrame - startFrame;
  done = 0;
  if( span < 0 ) done = 1;
  while( (eof_test != NULL) && !done ){
    
    (void)sscanf(read_buffer, "%d", &n_atoms);
    current_frame->r = 
      (struct coords *)calloc(n_atoms, sizeof(struct coords));

    /*read and toss the comment line */

    eof_test = fgets(read_buffer, sizeof(read_buffer), in_file);
    if(eof_test == NULL){
      printf("error in reading file\n");
      exit(8);
    }
    
    // unless we need to get the box size
    
    if( draw_box ){
      foo = strtok(read_buffer, " ,;\t");
      if(foo == NULL){
        printf("error in reading file time\n");
        exit(8);
      }
      
      foo = strtok(NULL, " ,;\t");
      if(foo == NULL){
        printf("error in reading file h00\n");
        exit(8);
      }
      current_frame->Hmat[0][0] = atof( foo );

      foo = strtok(NULL, " ,;\t");
      if(foo == NULL){
        printf("error in reading file h10\n");
        exit(8);
      }
      current_frame->Hmat[1][0] = atof( foo );

      foo = strtok(NULL, " ,;\t");
      if(foo == NULL){
        printf("error in reading file h20\n");
        exit(8);
      }
      current_frame->Hmat[2][0] = atof( foo );

      foo = strtok(NULL, " ,;\t");
      if(foo == NULL){
        printf("error in reading file h01\n");
        exit(8);
      }
      current_frame->Hmat[0][1] = atof( foo );

      foo = strtok(NULL, " ,;\t");
      if(foo == NULL){
        printf("error in reading file h11\n");
        exit(8);
      }
      current_frame->Hmat[1][1] = atof( foo );

      foo = strtok(NULL, " ,;\t");
      if(foo == NULL){
        printf("error in reading file h21\n");
        exit(8);
      }
      current_frame->Hmat[2][1] = atof( foo );

      foo = strtok(NULL, " ,;\t");
      if(foo == NULL){
        printf("error in reading file h02\n");
        exit(8);
      }
      current_frame->Hmat[0][2] = atof( foo );

      foo = strtok(NULL, " ,;\t");
      if(foo == NULL){
        printf("error in reading file h12\n");
        exit(8);
      }
      current_frame->Hmat[1][2] = atof( foo );

      foo = strtok(NULL, " ,;\t");
      if(foo == NULL){
        printf("error in reading file h22\n");
        exit(8);
      }
      current_frame->Hmat[2][2] = atof( foo );

    }

    for( i=0; i < n_atoms; i++){
      
      eof_test = fgets(read_buffer, sizeof(read_buffer), in_file);
      if(eof_test == NULL){
        printf("error in reading file line at atom %d\n", i);
        exit(8);
      }

      nTokens = count_tokens(read_buffer, " ,;\t");

      if (nTokens < 4) {
        printf("Not enough tokens while parsing file at atom %d\n", i);
        exit(8);
      }

      foo = strtok(read_buffer, " ,;\t");
      (void)strcpy(current_frame->r[i].name, foo); /*copy the atom name */

      foo = strtok(NULL, " ,;\t");
      (void)sscanf(foo, "%lf",&current_frame->r[i].x);
      foo = strtok(NULL, " ,;\t");
      (void)sscanf(foo, "%lf", &current_frame->r[i].y);
      foo = strtok(NULL, " ,;\t");
      (void)sscanf(foo, "%lf", &current_frame->r[i].z);

      if (extremaSet) {
        if(current_frame->r[i].x > big_x) big_x = current_frame->r[i].x;
        if(current_frame->r[i].x < small_x) small_x = current_frame->r[i].x;
        
        if(current_frame->r[i].y > big_y) big_y = current_frame->r[i].y;
        if(current_frame->r[i].y < small_y) small_y = current_frame->r[i].y;
        
        if(current_frame->r[i].z > big_z) big_z = current_frame->r[i].z;
        if(current_frame->r[i].z < small_z) small_z = current_frame->r[i].z;
      } else {
        big_x = current_frame->r[i].x;
        small_x = current_frame->r[i].x;
        
        big_y = current_frame->r[i].y;
        small_y = current_frame->r[i].y;
        
        big_z = current_frame->r[i].z;
        small_z = current_frame->r[i].z;

        extremaSet = 1;

      }

      if (nTokens == 5 || nTokens > 7) {
        foo = strtok(NULL, " ,;\t");
        (void)sscanf(foo, "%lf", &current_frame->r[i].charge);
        current_frame->r[i].hasCharge = 1;
      } else {
        current_frame->r[i].hasCharge = 0;
      }

      
      if (nTokens >= 7) {
        foo = strtok(NULL, " ,;\t");
        (void)sscanf(foo, "%lf", &current_frame->r[i].ux);
        foo = strtok(NULL, " ,;\t");
        (void)sscanf(foo, "%lf", &current_frame->r[i].uy);
        foo = strtok(NULL, " ,;\t");
        (void)sscanf(foo, "%lf", &current_frame->r[i].uz);
        current_frame->r[i].hasVector = 1;
      } else {
        current_frame->r[i].hasVector = 0;
      }
    }
    currentCount++;
    
    
    if( currentCount >= startFrame ){
      if(n_interpolate && current_frame->next != NULL){
        
        temp_frame = current_frame->next;
        
        for(i = 0; i < n_interpolate; i++){
          
          /* open the new output file */
          
          sprintf(out_name, out_format, currentCount );
          out_file = fopen(out_name, "w");
          currentCount++;
          if(out_file == NULL){
            printf("error opening output file: %s\n", out_name);
            exit(8);
          }
          (void)fprintf(out_file,
                        "// The following script was automatically generated by:\n"
                        "// xyz2pov Copyright 2001 by MATTHEW A. MEINEKE\n"
                        "\n"
                        "#include \"pov_header.pov\"\n"
                        "\n");
          if( draw_box ){

            for (j = 0; j < 3; j++) {
              for (k = 0; k < 3; k++) {
                dm[j][k] = current_frame->Hmat[j][k] - temp_frame->Hmat[j][k];
                dm[j][k] /= (double)(n_interpolate + 1);
              }
            }
                            
            fprintf( out_file,
                     "makePeriodicBox( %lf, %lf, %lf, %lf, %lf, %lf, %lf, %lf, %lf)\n"
                     "\n",
                     temp_frame->Hmat[0][0] + dm[0][0] * (i+1),
                     temp_frame->Hmat[2][0] + dm[2][0] * (i+1),
                     temp_frame->Hmat[1][0] + dm[1][0] * (i+1),
                     temp_frame->Hmat[0][1] + dm[0][1] * (i+1),
                     temp_frame->Hmat[2][1] + dm[2][1] * (i+1),
                     temp_frame->Hmat[1][1] + dm[1][1] * (i+1),
                     temp_frame->Hmat[0][2] + dm[0][2] * (i+1),
                     temp_frame->Hmat[2][2] + dm[2][2] * (i+1),
                     temp_frame->Hmat[1][2] + dm[1][2] * (i+1) );
          }
          
          
          out_coords = 
            (struct coords *)calloc(n_atoms, sizeof(struct coords));
          
          for(j=0; j < n_atoms; j++){
            dx = current_frame->r[j].x - temp_frame->r[j].x;
            dy = current_frame->r[j].y - temp_frame->r[j].y;
            dz = current_frame->r[j].z - temp_frame->r[j].z;
            
            dx /= (double)(n_interpolate + 1);
            dy /= (double)(n_interpolate + 1);
            dz /= (double)(n_interpolate + 1);
            
            strcpy(out_coords[j].name, temp_frame->r[j].name);
            out_coords[j].x = temp_frame->r[j].x + dx * (i+1);
            out_coords[j].y = temp_frame->r[j].y + dy * (i+1);
            out_coords[j].z = temp_frame->r[j].z + dz * (i+1);

            if (current_frame->r[j].hasVector) {              
              dx = current_frame->r[j].ux - temp_frame->r[j].ux;
              dy = current_frame->r[j].uy - temp_frame->r[j].uy;
              dz = current_frame->r[j].uz - temp_frame->r[j].uz;
              
              dx /= (double)(n_interpolate + 1);
              dy /= (double)(n_interpolate + 1);
              dz /= (double)(n_interpolate + 1);
              
              out_coords[j].hasVector = current_frame->r[j].hasVector;
              out_coords[j].ux = temp_frame->r[j].ux + dx * (i+1);
              out_coords[j].uy = temp_frame->r[j].uy + dy * (i+1);
              out_coords[j].uz = temp_frame->r[j].uz + dz * (i+1);
            }

            if (current_frame->r[j].hasCharge) {              
              dx = current_frame->r[j].charge - temp_frame->r[j].charge;
              
              dx /= (double)(n_interpolate + 1);
              
              out_coords[j].hasCharge = current_frame->r[j].hasCharge;
              out_coords[j].charge = temp_frame->r[j].charge + dx * (i+1);
            }

          }
          
          pov_write(out_file, out_coords, n_atoms, draw_hydrogens, draw_bonds, 
                    draw_atoms, draw_vectors);
          free(out_coords);
          (void)fclose(out_file);
        }
      }
      
      /* open the new output file */
      
      sprintf(out_name, out_format, currentCount );
      out_file = fopen(out_name, "w");
      if(out_file == NULL){
        printf("error opening output file: %s\n", out_name);
        exit(8);
      }
      (void)fprintf(out_file,
                    "// The following script was automatically generated by:\n"
                    "// xyz2pov Copyright 2001 by MATTHEW A. MEINEKE\n"
                    "\n"
                    "#include \"pov_header.pov\"\n"
                    "\n");
      
      if( draw_box ){
        
        fprintf( out_file,
                 "makePeriodicBox( %lf, %lf, %lf, %lf, %lf, %lf, %lf, %lf, %lf )\n"
                 "\n",
                 current_frame->Hmat[0][0],
                 current_frame->Hmat[2][0],
                 current_frame->Hmat[1][0],
                 current_frame->Hmat[0][1],
                 current_frame->Hmat[2][1],
                 current_frame->Hmat[1][1],
                 current_frame->Hmat[0][2],
                 current_frame->Hmat[2][2],
                 current_frame->Hmat[1][2] );
      }
      
      
      out_coords = 
        (struct coords *)calloc(n_atoms, sizeof(struct coords));
      
      for(i = 0; i < n_atoms; i++){
        strcpy(out_coords[i].name, current_frame->r[i].name);
        out_coords[i].x = current_frame->r[i].x;
        out_coords[i].y = current_frame->r[i].y;
        out_coords[i].z = current_frame->r[i].z;

        if (current_frame->r[i].hasVector) {              
          out_coords[i].hasVector = current_frame->r[i].hasVector;
          out_coords[i].ux = current_frame->r[i].ux;
          out_coords[i].uy = current_frame->r[i].uy;
          out_coords[i].uz = current_frame->r[i].uz;
        }

        if (current_frame->r[i].hasCharge) {              
          out_coords[i].hasCharge = current_frame->r[i].hasCharge;
          out_coords[i].charge = current_frame->r[i].charge;
        }
      }
      pov_write(out_file, out_coords, n_atoms, draw_hydrogens, draw_bonds, 
                draw_atoms, draw_vectors);
      free(out_coords);
      
      (void)fclose(out_file);
    }
    
    /*free up memory */

    temp_frame = current_frame->next;
    current_frame->next = NULL;

    if(temp_frame != NULL){

      free(temp_frame->r);
      free(temp_frame);
    }

    /* make a new frame */

    temp_frame = (struct linked_xyz *)malloc(sizeof(struct linked_xyz));
    temp_frame->next = current_frame;
    current_frame = temp_frame;
    
    eof_test = fgets(read_buffer, sizeof(read_buffer), in_file);

    if( haveEnd ){
      if( currentCount >= (endFrame + n_interpolate * span) ) done = 1;
    }
  }

  (void)fclose(in_file);


  if(generate_header){
    
    dx = big_x - small_x;
    dy = big_y - small_y;
    dz = big_z - small_z;

    rsqr = dx * dx + dy * dy + dz * dz;
    diagonal = sqrt(rsqr);
    diagonal *= 0.5;
    
    // calculate the center 

    dx = big_x + small_x;
    dy = big_y + small_y;
    dz = big_z + small_z;

    dx /= 2.0;
    dy /= 2.0;
    dz /= 2.0;
        

    /*note the y and z axis is exchanged for the different coordinate
      system in pov-ray*/
    
   
    out_file = fopen("pov_header.pov", "w");

    fprintf(out_file,
            "// The following script was automatically generated by:\n"
            "// xyz2pov Copyright 2001 by MATTHEW A. MEINEKE\n"
            "\n"
            "\n"
            "background { rgb <1.0, 1.0, 1.0> }\n"
            "\n"
            "\n"
            );
    
    fprintf(out_file,
            "//******************************************************\n"
            "// Declare the resolution, camera, and light sources.\n"
            "//******************************************************\n"
            "\n"
            "// NOTE: if you plan to render at a different resoltion,\n"
            "// be sure to update the following two lines to maintain\n"
            "// the correct aspect ratio.\n"
            "\n"
            "#declare Width = 640.0;\n"
            "#declare Height = 480.0;\n"
            "#declare Ratio = Width / Height;\n"
            "\n"
            "#declare ATOM_SPHERE_FACTOR = 0.2;\n"
            "#declare BOND_RADIUS = 0.1;\n"
            "#declare VECTOR_SCALE = 1.0;\n"    
            "#declare STICK_RADIUS = 0.5 * BOND_RADIUS;\n"
            "#declare CONE_RADIUS = 2.0 * STICK_RADIUS;\n"
            "#declare CONE_FRACTION = 0.15;\n"
            "\n"
            "// declare camera, light, and system variables\n"
            "\n"
            "#declare sysCenterX = %lf;\n"
            "#declare sysCenterY = %lf;\n"
            "#declare sysCenterZ = %lf;\n"
            "\n"
            "#declare zoom = %lf;\n"
            "\n",
            dx, dz, dy,
            diagonal );
    
    fprintf(out_file,
            "#declare cameraLookX = sysCenterX;\n"
            "#declare cameraLookY = sysCenterY;\n"
            "#declare cameraLookZ = sysCenterZ;\n"
            "\n"
            "#declare cameraX = cameraLookX;\n"
            "#declare cameraY = cameraLookY;\n"
            "#declare cameraZ = cameraLookZ - zoom;\n"
            "\n"
            "#declare lightAx = cameraX;\n"
            "#declare lightAy = cameraY;\n"
            "#declare lightAz = cameraZ;\n"
            "\n"
            "#declare lightBx = cameraX - zoom;\n"
            "#declare lightBy = cameraY + zoom;\n"
            "#declare lightBz = cameraZ;\n"
            "\n"
            "#declare boxCenterX = cameraLookX;\n"
            "#declare boxCenterY = cameraLookY;\n"
            "#declare boxCenterZ = cameraLookZ;\n"
            "\n"
            "// declare the cameras and the light sources\n"
            "\n"
            "camera{\n"
            "  location < cameraX, cameraY, cameraZ>\n"
            "  right < Ratio , 0, 0>\n"
            "  look_at < cameraLookX, cameraLookY, cameraLookZ >\n" 
            "}\n"
            "\n"
            "light_source{\n"
            "  < lightAx, lightAy, lightAz >\n"
            "  rgb < 1.0, 1.0, 1.0 > }\n"
            "\n"
            "light_source{\n"
            "  < lightBx, lightBy, lightBz >\n"
            "  rgb < 1.0, 1.0, 1.0 > }\n"
            "\n"
            "\n"
            "//************************************************************\n"
            "// Set whether or not to rotate the system.\n"
            "//\n"
            "// To Rotate, set ROTATE to 1.0 (true),\n"
            "// Then set the Euler Angles PHI, THETA, and PSI in degrees.\n"
            "//************************************************************\n"
            "\n"
            "#declare ROTATE = 0.0;\n"
            "#declare PHI = 0.0;\n"
            "#declare THETA = 0.0;\n"
            "#declare PSI = 0.0;\n"
            "\n"
            "#if(ROTATE)\n"
            "  #declare phi_r = radians(PHI);\n"
            "  #declare theta_r = radians(THETA);\n"
            "  #declare psi_r = radians(PSI);\n"
            "\n"
            "  #declare A11 = cos(phi_r) * cos(psi_r) - sin(phi_r) * cos(theta_r) * sin(psi_r);\n"
            "  #declare A12 = sin(phi_r) * cos(psi_r) + cos(phi_r) * cos(theta_r) * sin(psi_r);\n"
            "  #declare A13 = sin(theta_r) * sin(psi_r);\n"
            "\n"
            "  #declare A21 = -cos(phi_r) * sin(psi_r) - sin(phi_r) * cos(theta_r) * cos(psi_r);\n"
            "  #declare A22 = -sin(phi_r) * sin(psi_r) + cos(phi_r) * cos(theta_r) * cos(psi_r);\n"
            "  #declare A23 = sin(theta_r) * cos(psi_r);\n"
            "\n"
            "  #declare A31 = sin(phi_r) * sin(theta_r);\n"
            "  #declare A32 = -cos(phi_r) * sin(theta_r);\n"
            "  #declare A33 = cos(theta_r);\n"
            "\n"
            "#end\n"
            "\n"
            "\n"
            "//************************************************************\n"
            "// declare the periodic box macro\n"
            "//************************************************************\n"
            "\n"
            "#macro makePeriodicBox( bx1, by1, bz1, bx2, by2, bz2, bx3, by3, bz3 )\n"
            "\n"
            "  #local bcx = (bx1 + bx2 + bx3) / 2.0;\n"
            "  #local bcy = (by1 + by2 + by3) / 2.0;\n"
            "  #local bcz = (bz1 + bz2 + bz3) / 2.0;\n"
            "\n"
            "  #local pAx = boxCenterX - bcx;\n"
            "  #local pAy = boxCenterY - bcy;\n"
            "  #local pAz = boxCenterZ - bcz;\n"
            "  #local pBx = boxCenterX + bx1 - bcx;\n"
            "  #local pBy = boxCenterY + by1 - bcy;\n"
            "  #local pBz = boxCenterZ + bz1 - bcz;\n"
            "  #local pCx = boxCenterX + bx2 - bcx;\n"
            "  #local pCy = boxCenterY + by2 - bcy;\n"
            "  #local pCz = boxCenterZ + bz2 - bcz;\n"
            "  #local pDx = boxCenterX + bx3 - bcx;\n"
            "  #local pDy = boxCenterY + by3 - bcy;\n"
            "  #local pDz = boxCenterZ + bz3 - bcz;\n"
            "  #local pEx = boxCenterX + bx1 + bx2 - bcx;\n"
            "  #local pEy = boxCenterY + by1 + by2 - bcy;\n"
            "  #local pEz = boxCenterZ + bz1 + bz2 - bcz;\n"
            "  #local pFx = boxCenterX + bx1 + bx3 - bcx;\n"
            "  #local pFy = boxCenterY + by1 + by3 - bcy;\n"
            "  #local pFz = boxCenterZ + bz1 + bz3 - bcz;\n"
            "  #local pGx = boxCenterX + bx2 + bx3 - bcx;\n"
            "  #local pGy = boxCenterY + by2 + by3 - bcy;\n"
            "  #local pGz = boxCenterZ + bz2 + bz3 - bcz;\n"
            "  #local pHx = boxCenterX + bx1 + bx2 + bx3 - bcx;\n"
            "  #local pHy = boxCenterY + by1 + by2 + by3 - bcy;\n"
            "  #local pHz = boxCenterZ + bz1 + bz2 + bz3 - bcz;\n"
            "\n"
            "  #local colorR = 0.90;\n"
            "  #local colorG = 0.91;\n"
            "  #local colorB = 0.98;\n"
            "\n"
            "  #local pipeWidth = 0.4;\n"
            "\n"
            "  // 1\n"
            "  cylinder{\n"
            "    < pAx, pAy, pAz >,\n"
            "    < pBx, pBy, pBz >,\n"
            "    pipeWidth\n"
            "    texture{\n"
            "      pigment{ rgb < colorR, colorG, colorB > }\n"
            "      finish{\n"
            "        ambient .2\n"
            "        diffuse .6\n"
            "        specular 1\n"
            "        roughness .001\n"
            "        metallic\n"
            "      }\n"
            "    }\n"
            "  }\n"
            "\n"
            "  // 2\n"
            "  cylinder{\n"
            "    < pAx, pAy, pAz >,\n"
            "    < pCx, pCy, pCz >,\n"
            "    pipeWidth\n"
            "    texture{\n"
            "      pigment{ rgb < colorR, colorG, colorB > }\n"
            "      finish{\n"
            "        ambient .2\n"
            "        diffuse .6\n"
            "        specular 1\n"
            "        roughness .001\n"
            "        metallic\n"
            "      }\n"
            "    }\n"
            "  }\n"
            "\n"
            "  // 3\n"
            "  cylinder{\n"
            "    < pAx, pAy, pAz >,\n"
            "    < pDx, pDy, pDz >,\n"
            "    pipeWidth\n"
            "    texture{\n"
            "      pigment{ rgb < colorR, colorG, colorB > }\n"
            "      finish{\n"
            "        ambient .2\n"
            "        diffuse .6\n"
            "        specular 1\n"
            "        roughness .001\n"
            "        metallic\n"
            "      }\n"
            "    }\n"
            "  }\n"
            "\n"
            "  // 4\n"
            "  cylinder{\n"
            "    < pBx, pBy, pBz >,\n"
            "    < pEx, pEy, pEz >,\n"
            "    pipeWidth\n"
            "    texture{\n"
            "      pigment{ rgb < colorR, colorG, colorB > }\n"
            "      finish{\n"
            "        ambient .2\n"
            "        diffuse .6\n"
            "        specular 1\n"
            "        roughness .001\n"
            "        metallic\n"
            "      }\n"
            "    }\n"
            "  }\n"
            "\n"
            "  // 5\n"
            "  cylinder{\n"
            "    < pCx, pCy, pCz >,\n"
            "    < pEx, pEy, pEz >,\n"
            "    pipeWidth\n"
            "    texture{\n"
            "      pigment{ rgb < colorR, colorG, colorB > }\n"
            "      finish{\n"
            "        ambient .2\n"
            "        diffuse .6\n"
            "        specular 1\n"
            "        roughness .001\n"
            "        metallic\n"
            "      }\n"
            "    }\n"
            "  }\n"
            "\n"
            "  // 6\n"
            "  cylinder{\n"
            "    < pBx, pBy, pBz >,\n"
            "    < pFx, pFy, pFz >,\n"
            "    pipeWidth\n"
            "    texture{\n"
            "      pigment{ rgb < colorR, colorG, colorB > }\n"
            "      finish{\n"
            "        ambient .2\n"
            "        diffuse .6\n"
            "        specular 1\n"
            "        roughness .001\n"
            "        metallic\n"
            "      }\n"
            "    }\n"
            "  }\n"
            "\n"
            "  // 7\n"
            "  cylinder{\n"
            "    < pCx, pCy, pCz >,\n"
            "    < pGx, pGy, pGz >,\n"
            "    pipeWidth\n"
            "    texture{\n"
            "      pigment{ rgb < colorR, colorG, colorB > }\n"
            "      finish{\n"
            "        ambient .2\n"
            "        diffuse .6\n"
            "        specular 1\n"
            "        roughness .001\n"
            "        metallic\n"
            "      }\n"
            "    }\n"
            "  }\n"
            "\n"
            "  // 8\n"
            "  cylinder{\n"
            "    < pDx, pDy, pDz >,\n"
            "    < pGx, pGy, pGz >,\n"
            "    pipeWidth\n"
            "    texture{\n"
            "      pigment{ rgb < colorR, colorG, colorB > }\n"
            "      finish{\n"
            "        ambient .2\n"
            "        diffuse .6\n"
            "        specular 1\n"
            "        roughness .001\n"
            "        metallic\n"
            "      }\n"
            "    }\n"
            "  }\n"
            "\n"
            "  // 9\n"
            "  cylinder{\n"
            "    < pDx, pDy, pDz >,\n"
            "    < pFx, pFy, pFz >,\n"
            "    pipeWidth\n"
            "    texture{\n"
            "      pigment{ rgb < colorR, colorG, colorB > }\n"
            "      finish{\n"
            "        ambient .2\n"
            "        diffuse .6\n"
            "        specular 1\n"
            "        roughness .001\n"
            "        metallic\n"
            "      }\n"
            "    }\n"
            "  }\n"
            "\n"
            "  // 10\n"
            "  cylinder{\n"
            "    < pEx, pEy, pEz >,\n"
            "    < pHx, pHy, pHz >,\n"
            "    pipeWidth\n"
            "    texture{\n"
            "      pigment{ rgb < colorR, colorG, colorB > }\n"
            "      finish{\n"
            "        ambient .2\n"
            "        diffuse .6\n"
            "        specular 1\n"
            "        roughness .001\n"
            "        metallic\n"
            "      }\n"
            "    }\n"
            "  }\n"
            "\n"
            "  // 11\n"
            "  cylinder{\n"
            "    < pFx, pFy, pFz >,\n"
            "    < pHx, pHy, pHz >,\n"
            "    pipeWidth\n"
            "    texture{\n"
            "      pigment{ rgb < colorR, colorG, colorB > }\n"
            "      finish{\n"
            "        ambient .2\n"
            "        diffuse .6\n"
            "        specular 1\n"
            "        roughness .001\n"
            "        metallic\n"
            "      }\n"
            "    }\n"
            "  }\n"
            "\n"
            "  // 12\n"
            "  cylinder{\n"
            "    < pGx, pGy, pGz >,\n"
            "    < pHx, pHy, pHz >,\n"
            "    pipeWidth\n"
            "    texture{\n"
            "      pigment{ rgb < colorR, colorG, colorB > }\n"
            "      finish{\n"
            "        ambient .2\n"
            "        diffuse .6\n"
            "        specular 1\n"
            "        roughness .001\n"
            "        metallic\n"
            "      }\n"
            "    }\n"
            "  }\n"
            "\n"
            "#end\n"
            "\n"
            "\n");


    make_header_macros(out_file);

    fclose(out_file);
  }

  return 0;
  
}


/***************************************************************************
 * prints out the usage for the command line arguments, then exits.
 ***************************************************************************/

void usage(){
  (void)fprintf(stderr, 
                "The proper usage is: %s [options] <xyz_file>\n"
                "\n"
                "Options:\n"
                "\n"
                "   -o <prefix>   the output file prefix\n"
                "   -H            generate a pov-ray header file\n"
                "   -i <#>        number of frames to interpolate\n"
                "   -h            draw hydrogens\n"
                "   -b            draw bonds\n"
                "   -a            draw atoms\n"
                "   -v            draw vectors\n"
                "   -p            draw periodic box\n"
                "   -r            regenerate bond\n"
                "   -f <#>        render frame <#> only\n"
                "   -s <#>        begin at frame <#> (inclusive)\n"
                "   -e <#>        end at frame <#> (inclusive)\n"
                "\n",
                program_name);
  exit(8);
}

int count_tokens(line, delimiters)
     /* PURPOSE: RETURN A COUNT OF THE NUMBER OF TOKENS ON THE LINE. */
     char *line;                /* LINE CONTAINING TOKENS. */
     char *delimiters;  /* POSSIBLE TOKEN DELIMITERS TO USE. */
{
  char *working_line;   /* WORKING COPY OF LINE. */
  int ntokens;          /* NUMBER OF TOKENS FOUND IN LINE. */
  char *strtok_ptr;     /* POINTER FOR STRTOK. */
  
  strtok_ptr= working_line= strdup(line);
  
  ntokens=0;
  while (strtok(strtok_ptr,delimiters)!=NULL)
    {
      ntokens++;
      strtok_ptr=NULL;
    }
  
  free(working_line);
  return(ntokens);
}
Revision:	864
Committed:	Tue Nov 18 17:04:25 2003 UTC (20 years, 7 months ago) by gezelter
Content type:	text/plain
File size:	28949 byte(s)
Log Message:	Added Vectors