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jw_ptv.c
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jw_ptv.c
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#include <stdio.h>
#include <zlib.h>
#define nmax 5120
extern int n_img; /* no of images */
extern int oddevenflag; /* flag for oddeven */
extern int hp_flag; /* flag for highpass */
extern int tiff_flag; /* flag for tiff header */
extern int chfield; /* flag for field mode */
extern int nfix; /* no. of control points */
extern int num[]; /* no. of particles per image */
extern int nump[4]; /* no. of particles in previous image */
extern int numc[4]; /* no. of particles in current image */
extern int numn[4]; /* no. of particles in next image */
extern int n_trac[]; /* no. of tracks */
extern int match; /* no. of matches */
extern int match2; /* no. of matches in 2nd pass */
extern int corp, corc, corn; /* no. of correspondences in p,c,n */
extern int nr[4][4]; /* point numbers for man. ori */
extern int imx, imy, imgsize; /* image size */
extern int zoom_x[], zoom_y[], zoom_f[]; /* zoom parameters */
extern int pp1, pp2, pp3, pp4; /* for man. orientation */
extern int seq_first, seq_last; /* 1. and last img of seq */
extern int demo_nr; /* for demo purposes */
extern int examine; /* extra output */
extern int dump_for_rdb; /* # of dumpfiles for rdb */
extern int cr_sz; /* size of crosses */
extern int display; /* display flag */
extern int m[4];
extern int trackallocflag; /* checkflag if mega, c4, t4 already allocated */
extern double pix_x, pix_y; /* pixel size */
extern double pi, ro; /* pi, ro */
extern double cn, cnx, cny, csumg, eps0, corrmin; /* correspond. par */
extern double rmsX, rmsY, rmsZ, mean_sigma0; /* a priori rms */
extern double X_lay[], Zmin_lay[], Zmax_lay[]; /* illu. layer */
extern FILE *fp1, *fp2, *fp3, *fp4, *fpp; /* file pointers */
extern char img_name[4][256]; /* original image names */
extern char img_lp_name[4][256]; /* lowpass image names */
extern char img_hp_name[4][256]; /* highpass image names */
extern char img_cal[4][128]; /* calibration image names */
extern char img_ori[4][128]; /* image orientation data */
extern char img_ori0[4][128]; /* orientation approx. values */
extern char img_addpar0[4][128]; /* approx. image additional parameters */
extern char img_addpar[4][128]; /* image additional parameters */
extern char fixp_name[128]; /* testfield fixpoints */
extern char seq_name[4][128]; /* sequence names */
extern char track_dir[128]; /* directory with dap track data */
extern char res_name[128]; /* result destination */
extern char buf[], val[]; /* buffer */
extern char filename[128];
extern unsigned char *img[]; /* image data */
extern unsigned char *zoomimg; /* zomm image data */
extern Exterior Ex[]; /* exterior orientation */
extern Interior I[]; /* interior orientation */
extern ap_52 ap[]; /* add. parameters */
extern mm_np mmp; /* 3-media parameters */
extern target pix[4][nmax]; /* target pixel data */
extern target pix0[4][4]; /* pixel data for man_ori points */
extern coord_2d crd[4][nmax]; /* (distorted) metric coordinates */
extern coord_2d geo[4][nmax]; /* corrected metric coordinates */
extern coord_3d fix[]; /* testfield points coordinates */
extern n_tupel con[]; /* list of correspondences */
extern mm_LUT mmLUT[4]; /* LUT for mm radial displacement */
extern coord_3d *p_c3d;
extern target *p[4];
extern target *c[4];
extern target *n[4];
extern target *t4[4][4];
extern int nt4[4][4];
extern corres *corrp;
extern corres *corrc;
extern corres *corrn;
extern corres *c4[4];
extern trackparameters tpar;
extern P *mega[4];
extern FILE *fopen_r ();
extern double multimed_r ();
/* ChrisB added: */
extern char szDynTParFilename[128]; /* Filename for dynamic tracking parameters*/
extern int useCompression; /* flag for using gz compression on output files */
extern int staticTracking; /* Static/dynamic tracking flag. */
extern int verbose; /* Verbosity flag */
extern gzFile fgz; /* Used for opening compressed files */
int jw_Init();
int init_proc_c();
int start_proc_c();
int pre_processing_c ();
int detection_proc_c();
int correspondences_proc_c ();
int determination_proc_c ();
int sequence_proc_c();
void checkpoint_proc ();
int quit_proc_c ();
int parameter_panel_init();
int done_proc_c();
void read_ori();
void write_ori ();
void compose_name_plus_nr ();
int mouse_proc_c ();
void read_image();
int read_tiff ();
int write_tiff ();
void copy_images();
void histeq ();
int peak_fit_new();
void highpass();
void zoom ();
void lowpass_n ();
void lowpass_3 ();
void filter_3 ();
void unsharp_mask ();
void split ();
void multimed_nlay ();
void quicksort_con ();
int flow_demo_c();
void simple_connectivity();
void targ_rec();
void quicksort_target_y();
void transp();
void quicksort_coord2d_x();
void rotation_matrix();
void img_xy ();
void img_xy_mm ();
void img_xy_mm_geo ();
void pixel_to_metric();
void metric_to_pixel ();
void correct_brown_affin();
void distort_brown_affin ();
int pix_in_next();
int kill_in_list ();
void compose_name_plus_nr ();
void compose_name_plus_nr_str ();
int nearest_neighbour_geo ();
int nearest_neighbour_pix ();
void bubble_y ();
void init_mmLUT ();
void correspondences_4();
void det_lsq();
void ray_tracing();
void intersect_rt_3m();
void intersect_rt();
int nearest_neighbour_pix();
void img_coord();
void raw_orient();
void sortgrid_man();
void det_lsq ();
void det_lsq_2 ();
void det_lsq_3 ();
void det_lsq_4 ();
void raw_orient ();
void orient();
void volumedimension();
double epi_line ();
int epi_mm ();
void find_candidate_plus_msg ();
void find_candidate_plus ();
int drawcross();
int drawvector ();
int draw_pnr ();
int draw_value ();
void mark_detections ();
void mark_correspondences ();
void mark_corr ();
void ata ();
void matinv ();
void atl ();
void matmul ();
void mat_transpose ();
void tracking_proc ();
int find_track ();
int candsearch_in_pix ();
int candsearch_in_pixrest ();
int corrtest();
void predict();
void readseqtrackcrit();
void searchquader();
void angle_acc();
void sortwhatfound();
void bubble_foundpix1 ();
void bubble_foundpix2 ();
void tclimg2cimg();
void Pix_crd ();
void Back_trafo ();
void crd_pix();
int vrmltracks_c();
int trajectories_c();
int vrmldetections_c();
int vrmldettracks_c();
int tracking();
void read_parameter();
void level1();
void level2();
void level3();
void read_ascii_data();
void rotate_dataset();
void write_ascii_data();
void readcoord_parameter();
void change_coordinates();
void sort();
void neighbours();
int seq_track_proc_c();
void read_ascii_datanew();
void write_ascii_datanew();
void oddeven();
common/imgcoord.c 0000644 0001131 0001131 00000005353 10253026712 012761 0 ustar amns amns /****************************************************************************
Routine: imgcoord.c
Author/Copyright: Hans-Gerd Maas
Address: Institute of Geodesy and Photogrammetry
ETH - Hoenggerberg
CH - 8093 Zurich
Creation Date: 22.4.88
Description: computes x', y' from given Point and orientation
(see: Kraus)
Routines contained:
****************************************************************************/
#include "ptv.h"
void img_coord (X,Y,Z, Ex, I, ap, mm, x,y)
double X,Y,Z;
Exterior Ex;
Interior I;
ap_52 ap;
mm_np mm;
double *x,*y;
{
double deno, r, dx, dy;
multimed_nlay (Ex, mm, X,Y,Z, &X,&Y);
X -= Ex.x0; Y -= Ex.y0; Z -= Ex.z0;
deno = Ex.dm[0][2] * X + Ex.dm[1][2] * Y + Ex.dm[2][2] * Z;
*x = I.xh - I.cc * (Ex.dm[0][0]*X + Ex.dm[1][0]*Y + Ex.dm[2][0]*Z) / deno;
*y = I.yh - I.cc * (Ex.dm[0][1]*X + Ex.dm[1][1]*Y + Ex.dm[2][1]*Z) / deno;
r = sqrt (*x * *x + *y * *y);
dx = (*x) * (ap.k1*r*r + ap.k2*r*r*r*r + ap.k3*r*r*r*r*r*r)
+ ap.p1 * (r*r + 2*(*x)*(*x)) + 2*ap.p2*(*x)*(*y);
dy = (*y) * (ap.k1*r*r + ap.k2*r*r*r*r + ap.k3*r*r*r*r*r*r)
+ ap.p2 * (r*r + 2*(*y)*(*y)) + 2*ap.p1*(*x)*(*y);
*x += dx;
*y += dy;
*x = ap.scx * (*x) - sin(ap.she) * (*y);
*y = cos(ap.she) * (*y);
}
void img_xy (X,Y,Z, Ex, I, x,y)
double X,Y,Z, *x,*y;
Exterior Ex;
Interior I;
{
double deno;
deno = Ex.dm[0][2] * (X-Ex.x0)
+ Ex.dm[1][2] * (Y-Ex.y0)
+ Ex.dm[2][2] * (Z-Ex.z0);
*x = I.xh - I.cc * (Ex.dm[0][0] * (X-Ex.x0)
+ Ex.dm[1][0] * (Y-Ex.y0)
+ Ex.dm[2][0] * (Z-Ex.z0)) / deno;
*y = I.yh - I.cc * (Ex.dm[0][1] * (X-Ex.x0)
+ Ex.dm[1][1] * (Y-Ex.y0)
+ Ex.dm[2][1] * (Z-Ex.z0)) / deno;
}
void img_xy_mm (X,Y,Z, Ex, I, mm, x,y)
double X,Y,Z, *x,*y;
Exterior Ex;
Interior I;
mm_np mm;
{
double deno;
multimed_nlay (Ex,mm,X,Y,Z,&X,&Y);
deno = Ex.dm[0][2] * (X-Ex.x0)
+ Ex.dm[1][2] * (Y-Ex.y0)
+ Ex.dm[2][2] * (Z-Ex.z0);
*x = I.xh - I.cc * (Ex.dm[0][0] * (X-Ex.x0)
+ Ex.dm[1][0] * (Y-Ex.y0)
+ Ex.dm[2][0] * (Z-Ex.z0)) / deno;
*y = I.yh - I.cc * (Ex.dm[0][1] * (X-Ex.x0)
+ Ex.dm[1][1] * (Y-Ex.y0)
+ Ex.dm[2][1] * (Z-Ex.z0)) / deno;
}
void img_xy_mm_geo (X,Y,Z, Ex, I, mm, x,y)
double X,Y,Z, *x,*y;
Exterior Ex;
Interior I;
mm_np mm;
{
double deno;
multimed_nlay (Ex,mm,X,Y,Z,&X,&Y);
deno = Ex.dm[0][2] * (X-Ex.x0)
+ Ex.dm[1][2] * (Y-Ex.y0)
+ Ex.dm[2][2] * (Z-Ex.z0);
*x = - I.cc * (Ex.dm[0][0] * (X-Ex.x0)
+ Ex.dm[1][0] * (Y-Ex.y0)
+ Ex.dm[2][0] * (Z-Ex.z0)) / deno;
*y = - I.cc * (Ex.dm[0][1] * (X-Ex.x0)
+ Ex.dm[1][1] * (Y-Ex.y0)
+ Ex.dm[2][1] * (Z-Ex.z0)) / deno;
}
common/intersect.c 0000644 0001131 0001131 00000013771 10253026712 013161 0 ustar amns amns /****************************************************************************
Routine: intersect.c
Author/Copyright: Hans-Gerd Maas
Address: Institute of Geodesy and Photogrammetry
ETH - Hoenggerberg
CH - 8093 Zurich
Creation Date: 6.4.88
Description: 2 * (point + direction cosines) ==> intersection
Routines contained: -
****************************************************************************/
#include "ptv.h"
/*-------------------------------------------------------------------------*/
/* 2 cameras */
void intersect_rt (X1,Y1,Z1,a1,b1,c1,X2,Y2,Z2,a2,b2,c2,X,Y,Z)
double X1, Y1, Z1, a1, b1, c1, X2, Y2, Z2, a2, b2, c2, *X, *Y, *Z;
/* intersection, given two points with direction cosines */
/* only valid, if Z1 = Z2 = 0 , which is the case after ray tracing */
{
if (fabs(b1-b2) > fabs(a1-a2)) *Z = (Y2-Y1) / ((b1/c1) - (b2/c2));
else *Z = (X2-X1) / ((a1/c1) - (a2/c2));
*X = ( X1 + X2 + *Z * (a1/c1 + a2/c2)) /2;
*Y = ( Y1 + Y2 + *Z * (b1/c1 + b2/c2)) /2;
}
void intersect (X1,Y1,Z1,a1,b1,c1,X2,Y2,Z2,a2,b2,c2,X,Y,Z)
double X1, Y1, Z1, a1, b1, c1, X2, Y2, Z2, a2, b2, c2, *X, *Y, *Z;
/* intersection, given two points with direction cosines */
{
if (fabs(b1-b2) > fabs(a1-a2))
*Z = (Y2 - Y1 + Z1*(b1/c1) - Z2*(b2/c2)) / ((b1/c1) - (b2/c2));
else
*Z = (X2 - X1 + Z1*(a1/c1) - Z2*(a2/c2)) / ((a1/c1) - (a2/c2));
*X = ( X1 + X2 + *Z * (a1/c1 + a2/c2)) / 2;
*Y = ( Y1 + Y2 + *Z * (b1/c1 + b2/c2)) / 2;
}
/*-------------------------------------------------------------------------*/
/* 3 cameras */
void
intersect_rt_3 (X1,Y1,Z1,a1,b1,c1,X2,Y2,Z2,a2,b2,c2,X3,Y3,Z3,a3,b3,c3, X,Y,Z)
double X1,Y1,Z1,a1,b1,c1, X2,Y2,Z2,a2,b2,c2, X3,Y3,Z3,a3,b3,c3, *X,*Y,*Z;
/* intersection, given three points with direction cosines */
{
int i, n_max;
double base[6], max_base=0;
/* find the maximum base component to decide, wether to take
X or Y for determination of Z */
/* should be taken out as constant */
base[0] = fabs (X1 + X2 - 2*X3);
base[1] = fabs (X1 + X3 - 2*X2);
base[2] = fabs (X2 + X3 - 2*X1);
base[3] = fabs (Y1 + Y2 - 2*Y3);
base[4] = fabs (Y1 + Y3 - 2*Y2);
base[5] = fabs (Y2 + Y3 - 2*Y1);
for (i=0; i<6; i++) if (base[i] > max_base)
{
max_base = base[i];
n_max = i;
}
switch (n_max)
{
case 0: *Z = (2*X3 - X1 - X2) / ((a1/c1) + (a2/c2) - (2*a3/c3));
break;
case 1: *Z = (2*X2 - X1 - X3) / ((a1/c1) + (a3/c3) - (2*a2/c2));
break;
case 2: *Z = (2*X1 - X2 - X3) / ((a2/c2) + (a3/c3) - (2*a1/c1));
break;
case 3: *Z = (2*Y3 - Y1 - Y2) / ((b1/c1) + (b2/c2) - (2*b3/c3));
break;
case 4: *Z = (2*Y2 - Y1 - Y3) / ((b1/c1) + (b3/c3) - (2*b2/c2));
break;
case 5: *Z = (2*Y1 - Y2 - Y3) / ((b2/c2) + (b3/c3) - (2*b1/c1));
break;
}
*X = (X1+(*Z)*(a1/c1) + X2+(*Z)*(a2/c2) + X3+(*Z)*(a3/c3)) / 3;
*Y = (Y1+(*Z)*(b1/c1) + Y2+(*Z)*(b2/c2) + Y3+(*Z)*(b3/c3)) / 3;
}
void
intersect_rt_3m (X1,Y1,Z1,a1,b1,c1,X2,Y2,Z2,a2,b2,c2,X3,Y3,Z3,a3,b3,c3, X,Y,Z)
double X1,Y1,Z1,a1,b1,c1, X2,Y2,Z2,a2,b2,c2, X3,Y3,Z3,a3,b3,c3, *X,*Y,*Z;
/* intersection, given three points with direction cosines */
{
int i, n_max1, n_max2;
double base[6], max_base1=0, max_base2=0, Za, Zb;
/* find the maximum base component to decide, wether to take
X or Y for determination of Z */
/* should be taken out as constant */
base[0] = fabs (X1 + X2 - 2*X3);
base[1] = fabs (X1 + X3 - 2*X2);
base[2] = fabs (X2 + X3 - 2*X1);
base[3] = fabs (Y1 + Y2 - 2*Y3);
base[4] = fabs (Y1 + Y3 - 2*Y2);
base[5] = fabs (Y2 + Y3 - 2*Y1);
for (i=0; i<6; i++)
{
if (base[i] > max_base1)
{
max_base2 = max_base1; max_base1 = base[i];
n_max2 = n_max1; n_max1 = i;
}
else if (base[i] > max_base2)
{
max_base2 = base[i]; n_max2 = i;
}
}
/* compute *Z from the 2 longest base components,
what was empirically found to be the most accurate value */
switch (n_max1)
{
case 0: Za = (2*X3 - X1 - X2) / ((a1/c1) + (a2/c2) - (2*a3/c3));
break;
case 1: Za = (2*X2 - X1 - X3) / ((a1/c1) + (a3/c3) - (2*a2/c2));
break;
case 2: Za = (2*X1 - X2 - X3) / ((a2/c2) + (a3/c3) - (2*a1/c1));
break;
case 3: Za = (2*Y3 - Y1 - Y2) / ((b1/c1) + (b2/c2) - (2*b3/c3));
break;
case 4: Za = (2*Y2 - Y1 - Y3) / ((b1/c1) + (b3/c3) - (2*b2/c2));
break;
case 5: Za = (2*Y1 - Y2 - Y3) / ((b2/c2) + (b3/c3) - (2*b1/c1));
break;
}
switch (n_max2)
{
case 0: Zb = (2*X3 - X1 - X2) / ((a1/c1) + (a2/c2) - (2*a3/c3));
break;
case 1: Zb = (2*X2 - X1 - X3) / ((a1/c1) + (a3/c3) - (2*a2/c2));
break;
case 2: Zb = (2*X1 - X2 - X3) / ((a2/c2) + (a3/c3) - (2*a1/c1));
break;
case 3: Zb = (2*Y3 - Y1 - Y2) / ((b1/c1) + (b2/c2) - (2*b3/c3));
break;
case 4: Zb = (2*Y2 - Y1 - Y3) / ((b1/c1) + (b3/c3) - (2*b2/c2));
break;
case 5: Zb = (2*Y1 - Y2 - Y3) / ((b2/c2) + (b3/c3) - (2*b1/c1));
break;
}
*Z = (Za + Zb) / 2;
*X = (X1+(*Z)*(a1/c1) + X2+(*Z)*(a2/c2) + X3+(*Z)*(a3/c3)) / 3;
*Y = (Y1+(*Z)*(b1/c1) + Y2+(*Z)*(b2/c2) + Y3+(*Z)*(b3/c3)) / 3;
}
void intersect_3 (X1,Y1,Z1,a1,b1,c1,X2,Y2,Z2,a2,b2,c2,X3,Y3,Z3,a3,b3,c3, X,Y,Z)
double X1,Y1,Z1,a1,b1,c1, X2,Y2,Z2,a2,b2,c2, X3,Y3,Z3,a3,b3,c3, *X,*Y,*Z;
/* intersection, given three points with direction cosines */
{
int i, n_min;
double base[6], min_base=1e20;
/* find the minimum base component to decide, wether to take
X or Y for determination of Z */
base[0] = fabs (a1-a2); base[1] = fabs (a1-a3); base[2] = fabs (a2-a3);
base[3] = fabs (b1-b2); base[4] = fabs (b1-b3); base[5] = fabs (b2-b3);
for (i=0; i<6; i++) if (base[i] < min_base)
{
min_base = base[i];
n_min = i;
}
if (n_min > 2) /* min base in y-direction => take x */
*Z = (X2 + X3 - 2*X1 + 2*Z1*(a1/c1) - Z2*(a2/c2) - Z3*(a3/c3))
/ ((2*a1/c1) - (a2/c2) - (a3/c3));
else /* min base in y-direction => take x */
*Z = (Y2 + Y3 - 2*Y1 + 2*Z1*(b1/c1) - Z2*(b2/c2) - Z3*(b3/c3))
/ ((2*b1/c1) - (b2/c2) - (b3/c3));
*X = (X1+(*Z-Z1)*(a1/c1) + X2+(*Z-Z2)*(a2/c2) + X3+(*Z-Z3)*(a3/c3)) / 3;
*Y = (Y1+(*Z-Z1)*(b1/c1) + Y2+(*Z-Z2)*(b2/c2) + Y3+(*Z-Z3)*(b3/c3)) / 3;
}
common/lsqadj.c 0000644 0001131 0001131 00000005037 10253026712 012433 0 ustar amns amns /* parts of code of adjlib.c from Horst Beyer, Hannes Kirndorfer */
#include "ptv.h"
void ata (a, ata, m, n)
int m, n;
double *a, *ata; /* matrix a and resultmatrix ata = at a
a is m * n, ata is n * n */
{
register int i, j, k;
for (i = 0; i < n; i++)
{
for (j = 0; j < n; j++)
{
*(ata+i*n+j) = 0.0;
for (k = 0; k < m; k++)
*(ata+i*n+j) += *(a+k*n+i) * *(a+k*n+j);
}
}
} /* end ata.c */
void atl (u, a, l, m, n)
int m, n;
double *a, *u, *l; /* matrix a , vector l and
resultvector u = at l , a(m,n) */
{
int i, k;
for (i = 0; i < n; i++)
{
*(u + i) = 0.0;
for (k = 0; k < m; k++)
*(u + i) += *(a + k * n + i) * *(l + k);
}
} /* end atl.c */
void matinv (a, n)
double *a; /* input matrix size n * n */
int n; /* number of observations */
{
int ipiv, irow, icol;
double pivot; /* pivot element = 1.0 / aii */
double npivot; /* negative of pivot */
for (ipiv = 0; ipiv < n; ipiv++)
{
pivot = 1.0 / *(a + ipiv * n + ipiv);
npivot = - pivot;
for (irow = 0; irow < n; irow++)
{
for (icol = 0; icol < n; icol++)
{
if (irow != ipiv && icol != ipiv)
{
*(a + irow * n + icol) -= *(a + ipiv * n + icol) *
*(a + irow * n + ipiv) * pivot;
}
}
}
for (icol = 0; icol < n; icol++)
{
if (ipiv != icol)
*(a + ipiv * n + icol) *= npivot;
}
for (irow = 0; irow < n; irow++)
{
if (ipiv != irow)
*(a + irow * n + ipiv) *= pivot;
}
*(a + ipiv * n + ipiv) = pivot;
}
} /* end matinv */
void matmul (a,b,c,m,n,k)
int m,n,k;
double *a,*b,*c;
{ int i,j,l;
double x,*pa,*pb,*pc;
for (i=0; i<k; i++)
{ pb = b;
pa = a++;
for (j=0; j<m; j++)
{ pc = c;
x = 0.0;
for (l=0; l<n; l++)
{ x = x + *pb++ * *pc;
pc += k;
}
*pa = x;
pa += k;
}
c++;
}
}
void transp (a,m,n)
double a[];
int m,n;
{
double *b,*c,*d,*e;
int i,j;
b = (double*) malloc (m*n*sizeof(double));
if (b == 0) goto err;
d = a;
e = b;
for (i=0; i<m; i++)
{ c = b++;
for (j=0; j<n; j++)
{ *c = *a++;
c += m;
}
}
for (i=0; i<m*n; i++)
*d++ = *e++;
/*
free (b);
*/
return;
err:
printf ("\n\n *** no memory space in C-subroutine transp ***");
printf ("\n\n");
exit (-1);
}
void mat_transpose (mat1, mat2, m, n)
double *mat1, *mat2;
int n, m;
{
int i, j;
for (i=0; i<m; i++) for (j=0; j<n; j++) *(mat2+j*m+i) = *(mat1+i*n+j);
}
common/multimed.c 0000644 0001131 0001131 00000042757 10274652171 013016 0 ustar amns amns /****************************************************************************
Routine: multimed.c
Author/Copyright: Hans-Gerd Maas
Address: Institute of Geodesy and Photogrammetry
ETH - Hoenggerberg
CH - 8093 Zurich
Creation Date: 20.4.88
Description:
1 point, exterior orientation, multimedia parameters ==> X,Y=shifts
(special case 3 media, medium 2 = plane parallel)
Routines contained: -
****************************************************************************/
#include "ptv.h"
double get_mmf_from_mmLUT ();
void multimed (ex,mm,X,Y,Z,Xq,Yq)
Exterior ex;
mm_3p mm;
double X, Y, Z, *Xq,*Yq;
{
int i, it=0;
double beta1, beta2, beta3, r, rbeta, rdiff, rq, mmf;
double ocf=1.0; /* over compensation factor for faster convergence */
if (mm.n1==1 && mm.n2==1 && mm.n3==1) /* 1-medium case */
{
*Xq = X; *Yq = Y; return;
}
/* interpolation in mmLUT, if selected (requires some global variables) */
if (mm.lut)
{
/* check, which is the correct image */
for (i=0; i<n_img; i++)
if (Ex[i].x0 == ex.x0 && Ex[i].y0 == ex.y0 && Ex[i].z0 == ex.z0)
break;
mmf = get_mmf_from_mmLUT (i, X,Y,Z);
if (mmf > 0)
{
*Xq = ex.x0 + (X-ex.x0) * mmf;
*Yq = ex.y0 + (Y-ex.y0) * mmf;
return;
}
}
/* iterative procedure */
r = sqrt ((X-ex.x0)*(X-ex.x0)+(Y-ex.y0)*(Y-ex.y0));
rq = r;
do
{
beta1 = atan (rq/(ex.z0-Z));
beta2 = asin (sin(beta1) * mm.n1/mm.n2);
beta3 = asin (sin(beta1) * mm.n1/mm.n3);
rbeta = (ex.z0-mm.d) * tan(beta1) + mm.d * tan(beta2) - Z * tan(beta3);
rdiff = r - rbeta;
rdiff *= ocf;
rq += rdiff;
it++;
}
while (((rdiff > 0.001) || (rdiff < -0.001)) && it < 40);
if (it >= 40)
{
puts ("Multimed stopped after 40. Iteration");
if (fabs(rdiff) < 0.1)
{
*Xq = ex.x0 + (X-ex.x0) * rq/r;
*Yq = ex.y0 + (Y-ex.y0) * rq/r;
}
else
{
*Xq = X; *Yq = Y;
}
return;
}
if (r != 0)
{
*Xq = ex.x0 + (X-ex.x0) * rq/r;
*Yq = ex.y0 + (Y-ex.y0) * rq/r;
}
else
{
*Xq = X;
*Yq = Y;
}
}
double multimed_r (ex,mm,X,Y,Z)
/* calculates and returns the radial shift */
Exterior ex;
mm_3p mm;
double X, Y, Z;
{
int i, it=0;
double beta1, beta2, beta3, r, rbeta, rdiff, rq, mmf;
double ocf=1.0; /* over compensation factor for faster convergence */
if (mm.n1==1 && mm.n2==1 && mm.n3==1) return (1.0); /* 1-medium case */
/* interpolation in mmLUT, if selected (requires some global variables) */
if (mm.lut)
{
/* check, which is the correct image */
for (i=0; i<n_img; i++)
if (Ex[i].x0 == ex.x0 && Ex[i].y0 == ex.y0 && Ex[i].z0 == ex.z0)
break;
mmf = get_mmf_from_mmLUT (i, X,Y,Z);
if (mmf > 0) return (mmf);
}
/* iterative procedure */
r = sqrt ((X-ex.x0)*(X-ex.x0)+(Y-ex.y0)*(Y-ex.y0));
rq = r;
do
{
beta1 = atan (rq/(ex.z0-Z));
beta2 = asin (sin(beta1) * mm.n1/mm.n2);
beta3 = asin (sin(beta1) * mm.n1/mm.n3);
rbeta = (ex.z0-mm.d) * tan(beta1) + mm.d * tan(beta2) - Z * tan(beta3);
rdiff = r - rbeta;
rdiff *= ocf;
rq += rdiff;
it++;
}
while (((rdiff > 0.001) || (rdiff < -0.001)) && it < 40);
if (it >= 40)
{
puts ("Multimed_r stopped after 40. Iteration"); return (1.0);
}
if (r != 0) return (rq/r); else return (1.0);
}
void multimed_nlay_true (ex,mm,X,Y,Z,Xq,Yq)
Exterior ex;
mm_np mm;
double X, Y, Z, *Xq,*Yq;
{
int i, it=0;
double beta1, beta2[32], beta3, r, rbeta, rdiff, rq, mmf;
double ocf=1.00; /* over compensation factor for faster convergence */
/* interpolation in mmLUT, if selected (requires some global variables) */
if (mm.lut)
{
/* check, which is the correct image */
for (i=0; i<n_img; i++)
if (Ex[i].x0 == ex.x0 && Ex[i].y0 == ex.y0 && Ex[i].z0 == ex.z0)
break;
mmf = get_mmf_from_mmLUT (i, X,Y,Z);
if (mmf > 0)
{
*Xq = ex.x0 + (X-ex.x0) * mmf;
*Yq = ex.y0 + (Y-ex.y0) * mmf;
return;
}
}
/* iterative procedure */
r = sqrt ((X-ex.x0)*(X-ex.x0)+(Y-ex.y0)*(Y-ex.y0));
rq = r;
do
{
beta1 = atan (rq/(ex.z0-Z));
for (i=0; i<mm.nlay; i++) beta2[i] = asin (sin(beta1) * mm.n1/mm.n2[i]);
beta3 = asin (sin(beta1) * mm.n1/mm.n3);
rbeta = (ex.z0-mm.d[0]) * tan(beta1) - Z * tan(beta3);
for (i=0; i<mm.nlay; i++) rbeta += (mm.d[i] * tan(beta2[i]));
rdiff = r - rbeta;
rdiff *= ocf;
rq += rdiff;
it++;
}
while (((rdiff > 0.001) || (rdiff < -0.001)) && it < 40);
if (it >= 40)
{
*Xq = X; *Yq = Y;
puts ("Multimed_nlay_true stopped after 40. Iteration"); return;
}
if (r != 0)
{
*Xq = ex.x0 + (X-ex.x0) * rq/r;
*Yq = ex.y0 + (Y-ex.y0) * rq/r;
}
else
{
*Xq = X;
*Yq = Y;
}
}
void multimed_nlay (ex,mm,X,Y,Z,Xq,Yq)
Exterior ex;
mm_np mm;
double X, Y, Z, *Xq,*Yq;
{
int i, it=0;
double beta1, beta2[32], beta3, r, rbeta, rdiff, rq, mmf;
/* interpolation in mmLUT, if selected (requires some global variables) */
if (mm.lut)
{
/* check, which is the correct image */
for (i=0; i<n_img; i++)
if (Ex[i].x0 == ex.x0 && Ex[i].y0 == ex.y0 && Ex[i].z0 == ex.z0)
break;
mmf = get_mmf_from_mmLUT (i, X,Y,Z);
if (mmf > 0)
{
*Xq = ex.x0 + (X-ex.x0) * mmf;