layer-xyz2mod.c

射线追踪程序

/*
 * This file is part of tomo3d
 *
 * Copyright (C) 2002, 2003, Sebastien Judenherc <[e-mail]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 * USA
 *
 */
/* Lecture d'un fichier "layer" et ecriture d'un fichier "block"
 * exemple de fichier "layer":
48.0 -2.0      40  10.0    40   10.0    10.0    5.86
48.0 -2.0      20  20.0    20   20.0    20.0    6.81
48.0 -2.0      15  30.0    15   30.0    30.0    7.8
48.0 -2.0      15  30.0    15   30.0    30.0    7.87
48.0 -2.0      15  30.0    15   30.0    30.0    7.94
48.0 -2.0      15  30.0    15   30.0    30.0    8.09
 *
 * */


#include <stdio.h>
#include <stdlib.h>
#include "tomo3d.h"

struct xyzv_t { float x, y, z, v; };

int main(int argc, char **argv)
{
        struct block_t * blk=NULL;
        struct layer_t *layers;
        struct xyzv_t *xyzv=NULL; 
        int nxyzv=0;
        FILE *f;
        int nbl,nbb,k,i;
        if (argc<3) {
                fprintf(stderr,"%s <layer-cfg-file> <xyzmodel>\n",argv[0]);
                exit(0);
        }
        if ((f=fopen(argv[2],"rt"))==NULL) {
                perror(argv[2]);
                exit(0);
        }
        xyzv=(struct xyzv_t *)malloc(sizeof(struct xyzv_t));
        fscanf(f,"%f %f %f %f",&(xyzv[0].x),&(xyzv[0].y),&(xyzv[0].z),
                        &(xyzv[0].v));
        while (!feof(f)) {
                nxyzv++;
                xyzv=(struct xyzv_t *)realloc(xyzv,(nxyzv+1)*sizeof(struct xyzv_t));
                fscanf(f,"%f %f %f %f",&(xyzv[nxyzv].x),&(xyzv[nxyzv].y),
                                &(xyzv[nxyzv].z),&(xyzv[nxyzv].v));
        }
        fclose(f);
        if ((blk=readlayers(argv[1], &nbb, &layers, &nbl))==NULL) exit(0);
        fprintf(stderr,"nxyzv=%d, nbb=%d\n",nxyzv,nbb);
        for (i=0; i<nbb; i++)
                blk[i].L=blk[i].dV=0.0;
        k=0;
        for (i=0; i<nxyzv; i++) {
                if (!(i%250)) { fprintf(stderr,"."); fflush(stderr); }
                k=blocknum(xyzv[i].x,xyzv[i].y,xyzv[i].z,blk,nbb,k);
                if (k<0) {
                        fprintf(stderr,"i=%d %f %f %f k=-1\n",
                                        i,xyzv[i].x,xyzv[i].y,xyzv[i].z);
                        exit(0);
                }
                blk[k].dV+=xyzv[i].v;
                blk[k].L+=1.0;
        }
        fprintf(stderr,"\n");
        for (i=0; i<nbb; i++) {
                if (blk[i].L>0.5) {
                        blk[i].dV/=(100.*blk[i].L);
                        fprintf(stderr,"."); fflush(stderr);
                }
                /*blk[i].V*=(1.+blk[i].dV);*/
        }
        printlayers(stderr,layers,nbl);
        printblocks(stdout,blk,nbb);
        return(0);
}