| 76 |
|
int parent = 0; /* number of children, -1 if child */ |
| 77 |
|
int sequential = 0; /* display images in sequence */ |
| 78 |
|
|
| 79 |
+ |
char *tout = "od"; /* output of 't' command */ |
| 80 |
+ |
|
| 81 |
|
VIEW ourview = STDVIEW; /* image view parameters */ |
| 82 |
|
int gotview = 0; /* got parameters from file */ |
| 83 |
|
|
| 143 |
|
for (i = 1; i < argc; i++) |
| 144 |
|
if (argv[i][0] == '-') |
| 145 |
|
switch (argv[i][1]) { |
| 146 |
< |
case 'c': |
| 146 |
> |
case 'c': /* number of colors */ |
| 147 |
|
maxcolors = atoi(argv[++i]); |
| 148 |
|
break; |
| 149 |
< |
case 'b': |
| 149 |
> |
case 'b': /* greyscale only */ |
| 150 |
|
greyscale = !greyscale; |
| 151 |
|
break; |
| 152 |
< |
case 'm': |
| 152 |
> |
case 'm': /* monochrome */ |
| 153 |
|
greyscale = 1; |
| 154 |
|
maxcolors = 2; |
| 155 |
|
break; |
| 156 |
< |
case 'd': |
| 156 |
> |
case 'd': /* display or dither */ |
| 157 |
|
if (argv[i][2] == 'i') |
| 158 |
|
dispname = argv[++i]; |
| 159 |
|
else |
| 160 |
|
dither = !dither; |
| 161 |
|
break; |
| 162 |
< |
case 'f': |
| 162 |
> |
case 'f': /* save pixmap */ |
| 163 |
|
fast = !fast; |
| 164 |
|
break; |
| 165 |
< |
case 's': |
| 165 |
> |
case 's': /* one at a time */ |
| 166 |
|
sequential = !sequential; |
| 167 |
|
break; |
| 168 |
< |
case 'e': |
| 168 |
> |
case 'o': /* 't' output */ |
| 169 |
> |
tout = argv[i]+2; |
| 170 |
> |
break; |
| 171 |
> |
case 'e': /* exposure comp. */ |
| 172 |
|
if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
| 173 |
|
goto userr; |
| 174 |
|
scale = atoi(argv[++i]); |
| 175 |
|
break; |
| 176 |
< |
case 'g': |
| 176 |
> |
case 'g': /* gamma comp. */ |
| 177 |
|
if (argv[i][2] == 'e') |
| 178 |
|
geometry = argv[++i]; |
| 179 |
|
else |
| 600 |
|
} |
| 601 |
|
|
| 602 |
|
|
| 603 |
< |
traceray(xpos, ypos) /* print ray corresponding to pixel */ |
| 603 |
> |
traceray(xpos, ypos) /* print requested pixel data */ |
| 604 |
|
int xpos, ypos; |
| 605 |
|
{ |
| 606 |
+ |
extern char *index(); |
| 607 |
|
FLOAT hv[2]; |
| 608 |
|
FVECT rorg, rdir; |
| 609 |
+ |
COLOR cval; |
| 610 |
+ |
register char *cp; |
| 611 |
|
|
| 612 |
< |
if (!gotview) { /* no view, no can do */ |
| 613 |
< |
XBell(thedisplay, 0); |
| 614 |
< |
return(-1); |
| 615 |
< |
} |
| 612 |
> |
box.xmin = xpos; box.xsiz = 1; |
| 613 |
> |
box.ymin = ypos; box.ysiz = 1; |
| 614 |
> |
avgbox(cval); |
| 615 |
> |
scalecolor(cval, 1./exposure); |
| 616 |
|
pix2loc(hv, &inpres, xpos-xoff, ypos-yoff); |
| 617 |
< |
if (viewray(rorg, rdir, &ourview, hv[0], hv[1]) < 0) |
| 618 |
< |
return(-1); |
| 619 |
< |
printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
| 620 |
< |
printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); |
| 617 |
> |
if (!gotview || viewray(rorg, rdir, &ourview, hv[0], hv[1]) < 0) |
| 618 |
> |
rorg[0] = rorg[1] = rorg[2] = |
| 619 |
> |
rdir[0] = rdir[1] = rdir[2] = 0.; |
| 620 |
> |
|
| 621 |
> |
for (cp = tout; *cp; cp++) /* print what they asked for */ |
| 622 |
> |
switch (*cp) { |
| 623 |
> |
case 'o': /* origin */ |
| 624 |
> |
printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
| 625 |
> |
break; |
| 626 |
> |
case 'd': /* direction */ |
| 627 |
> |
printf("%e %e %e ", rdir[0], rdir[1], rdir[2]); |
| 628 |
> |
break; |
| 629 |
> |
case 'v': /* radiance value */ |
| 630 |
> |
printf("%e %e %e ", colval(cval,RED), |
| 631 |
> |
colval(cval,GRN), colval(cval,BLU)); |
| 632 |
> |
break; |
| 633 |
> |
case 'l': /* luminance */ |
| 634 |
> |
printf("%e ", luminance(cval)); |
| 635 |
> |
break; |
| 636 |
> |
case 'p': /* pixel position */ |
| 637 |
> |
printf("%d %d ", (int)(hv[0]*inpres.xr), |
| 638 |
> |
(int)(hv[1]*inpres.yr)); |
| 639 |
> |
break; |
| 640 |
> |
} |
| 641 |
> |
putchar('\n'); |
| 642 |
|
fflush(stdout); |
| 643 |
|
return(0); |
| 644 |
|
} |
