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/* Copyright (c) 1990 Regents of the University of California */ |
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/* Copyright (c) 1991 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#include "pic.h" |
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#include "x11raster.h" |
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#include "random.h" |
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#include "resolu.h" |
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#define FONTNAME "8x13" /* text font we'll use */ |
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#define CTRL(c) ('c'-'@') |
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#define CTRL(c) ((c)-'@') |
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#define BORWIDTH 5 /* border width */ |
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COLR *scanline; /* scan line buffer */ |
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int xmax, ymax; /* picture resolution */ |
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RESOLU inpres; /* input resolution and ordering */ |
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int xmax, ymax; /* picture dimensions */ |
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int width, height; /* window size */ |
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char *fname = NULL; /* input file name */ |
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FILE *fin = stdin; /* input file */ |
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extern char *malloc(), *calloc(); |
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extern double atof(), pow(), log(); |
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extern double pow(), log(); |
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Display *thedisplay; |
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/* get header */ |
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getheader(fin, headline, NULL); |
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/* get picture dimensions */ |
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if (wrongformat || fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
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if (wrongformat || !fgetsresolu(&inpres, fin)) |
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quiterr("bad picture format"); |
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xmax = scanlen(&inpres); |
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ymax = numscans(&inpres); |
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/* set view parameters */ |
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if (gotview && setview(&ourview) != NULL) |
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gotview = 0; |
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headline(s) /* get relevant info from header */ |
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char *s; |
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{ |
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static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
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register char **an; |
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char fmt[32]; |
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if (isexpos(s)) |
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else if (isformat(s)) { |
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formatval(fmt, s); |
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wrongformat = strcmp(fmt, COLRFMT); |
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} else |
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for (an = altname; *an != NULL; an++) |
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if (!strncmp(*an, s, strlen(*an))) { |
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if (sscanview(&ourview, s+strlen(*an)) > 0) |
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gotview++; |
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return; |
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} |
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} else if (isview(s) && sscanview(&ourview, s) > 0) |
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gotview++; |
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} |
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XColor cvx; |
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int com, n; |
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double comp; |
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FLOAT hv[2]; |
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FVECT rorg, rdir; |
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n = XLookupString(ekey, buf, sizeof(buf), NULL, NULL); |
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com = buf[0]; |
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switch (com) { /* interpret command */ |
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case 'q': |
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case CTRL(D): /* quit */ |
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case CTRL('D'): /* quit */ |
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quit(0); |
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case '\n': |
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case '\r': |
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XStoreColor(thedisplay, ourras->cmap, &cvx); |
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return(0); |
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case 'p': /* position */ |
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sprintf(buf, "(%d,%d)", ekey->x-xoff, ymax-1-ekey->y+yoff); |
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pix2loc(hv, &inpres, ekey->x-xoff, ekey->y-yoff); |
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sprintf(buf, "(%d,%d)", (int)(hv[0]*inpres.xr), |
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(int)(hv[1]*inpres.yr)); |
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XDrawImageString(thedisplay, wind, ourgc, ekey->x, ekey->y, |
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buf, strlen(buf)); |
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return(0); |
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XBell(thedisplay, 0); |
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return(-1); |
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} |
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if (viewray(rorg, rdir, &ourview, |
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(ekey->x-xoff+.5)/xmax, |
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(ymax-1-ekey->y+yoff+.5)/ymax) < 0) |
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pix2loc(hv, &inpres, ekey->x-xoff, ekey->y-yoff); |
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if (viewray(rorg, rdir, &ourview, hv[0], hv[1]) < 0) |
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return(-1); |
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printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
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printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); |
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free_raster(ourras); |
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getras(); |
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/* fall through */ |
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case CTRL(R): /* redraw */ |
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case CTRL(L): |
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case CTRL('R'): /* redraw */ |
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case CTRL('L'): |
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unmap_rcolors(ourras); |
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XClearWindow(thedisplay, wind); |
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map_rcolors(ourras, wind); |
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avgbox(clr) /* average color over current box */ |
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COLOR clr; |
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{ |
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static COLOR lc; |
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static int ll, lr, lt, lb; |
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int left, right, top, bottom; |
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int y; |
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double d; |
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bottom = ymax; |
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if (top >= bottom) |
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return(-1); |
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if (left == ll && right == lr && top == lt && bottom == lb) { |
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copycolor(clr, lc); |
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return; |
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} |
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for (y = top; y < bottom; y++) { |
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if (getscan(y) == -1) |
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return(-1); |
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} |
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d = 1.0/((right-left)*(bottom-top)); |
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scalecolor(clr, d); |
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ll = left; lr = right; lt = top; lb = bottom; |
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copycolor(lc, clr); |
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return(0); |
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} |
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