int main(int argc, char* argv[])
{
sf_file in=NULL;
sf_init (argc,argv);
in = sf_input("in");
vp_erase();
vp_stdplot_init (0.,2.,0.,1.,
true,false,true,true);
vp_frame_init(in,"blt",false);
vp_framenum(0.0001);
vp_frame();
vp_erase();
vp_stdplot_init (0.,0.036,0.,0.9,
true,false,true,false);
vp_frame_init(in,"tlb",true);
vp_framenum(15.);
vp_frame();
vp_barframe_init (in,0.,1.);
vp_barframe ();
exit(0);
}
static void setgraphics (float ox, float oz, float lengthx, float lengthz)
{
float dash[1];
float gap[1];
dash[0] = 0.1;
dash[0] = 0.1;
vp_init();
vp_erase ();
vp_tjust (TH_CENTER, TV_TOP);
vp_tfont (ROMANC, VP_STROKE, VP_NO_CHANGE);
vp_purge ();
vp_orig (XMIN + .165 * XMAX , YMIN + .875 * YMAX);
vp_clip (-VP_MAX, -VP_MAX, VP_MAX, VP_MAX);
vp_color (VP_RED);
vp_fat (THIN);
vp_setdash (dash, gap, 0);
vp_uorig (ox , oz);
vp_scale (0.75 * XMAX / (lengthx), -0.75 * YMAX / (lengthz));
return;
}
static void feedpage (void)
{
vp_erase (); /* feed a page, and reset defaults */
vp_clip (0., 0., 8.0, 11.0);/* reset our clipping window */
vp_tfont (1, VP_STROKE, 0); /* reset our font */
vp_fat ((int) (charsz / 2));/* reset our fatness */
vp_orig (0., 0.); /* reset our origin */
vpos = 10.3; /* start at the top of the page */
}
int main(int argc, char* argv[])
{
int n1, n2, n3, gainstep, panel, it, nreserve, i1, i2, i3, j, orient;
float o1, o2, o3, d1, d2, d3, gpow, clip, pclip, phalf, bias=0., minmax[2];
float pbias, gain=0., x1, y1, x2, y2, **data=NULL, f, barmin, barmax, dat;
bool transp, yreverse, xreverse, allpos, polarity, symcp, verb;
bool eclip=false, egpow=false, barreverse, mean=false;
bool scalebar, nomin=true, nomax=true, framenum, sfbyte, sfbar, charin;
char *gainpanel, *color, *barfile;
unsigned char tbl[TSIZE+1], **buf, tmp, *barbuf[1];
enum {GAIN_EACH=-3,GAIN_ALL=-2,NO_GAIN=-1};
off_t pos;
sf_file in, out=NULL, bar=NULL;
sf_init(argc,argv);
in = sf_input("in");
sfbyte = (bool) (NULL != strstr (sf_getprog(),"byte"));
sfbar = (bool) (NULL != strstr (sf_getprog(),"bar"));
if (sfbyte) {
out = sf_output("out");
sf_settype(out,SF_UCHAR);
} else if (sfbar) {
bar = sf_output("out");
sf_settype(bar,SF_UCHAR);
} else {
vp_init();
}
charin = (bool) (SF_UCHAR == sf_gettype(in));
if (charin && sfbyte) sf_error("Cannot input uchar to byte");
if (!charin && SF_FLOAT != sf_gettype(in)) sf_error("Need float input");
if (!sf_histint(in,"n1",&n1)) sf_error("No n1= in input");
if (!sf_histint(in,"n2",&n2)) n2=1;
n3 = sf_leftsize(in,2);
if (!sf_histfloat(in,"o1",&o1)) o1=0.;
if (!sf_histfloat(in,"o2",&o2)) o2=0.;
if (!sf_histfloat(in,"o3",&o3)) o3=0.;
if (!sf_histfloat(in,"d1",&d1)) d1=1.;
if (!sf_histfloat(in,"d2",&d2)) d2=1.;
if (!sf_histfloat(in,"d3",&d3)) d3=1.;
if (!sf_getbool("transp",&transp)) transp=true;
/* if y, transpose the display axes */
if (!sf_getbool("yreverse",&yreverse)) yreverse=true;
/* if y, reverse the vertical axis */
if (!sf_getbool("xreverse",&xreverse)) xreverse=false;
/* if y, reverse the horizontal axis */
if (transp) {
orient = 3;
} else {
orient = (xreverse==yreverse)? 0:2;
}
if (!charin) {
panel = NO_GAIN; /* no need for gain */
phalf=85.;
egpow = false;
if (!sf_getfloat("gpow",&gpow)) {
gpow=1.;
/*( gpow=1 raise data to gpow power for display )*/
} else if (gpow <= 0.) {
gpow=0.;
egpow = true;
sf_getfloat("phalf",&phalf);
/* percentage for estimating gpow */
if (phalf <=0. || phalf > 100.)
sf_error("phalf=%g should be > 0 and <= 100",phalf);
panel = 0;
}
pclip=99.;
eclip = (bool) (!sf_getfloat("clip",&clip));
/* data clip */
if (eclip) {
clip = 0.;
sf_getfloat("pclip",&pclip);
/* data clip percentile (default is 99) */
if (pclip <=0. || pclip > 100.)
sf_error("pclip=%g should be > 0 and <= 100",pclip);
panel = 0;
} else if (clip <= 0.) {
sf_warning("clip=%g <= 0",clip);
clip = FLT_EPSILON;
}
if (0==panel) {
if (!sf_getint("gainstep",&gainstep)) gainstep=0.5+n1/256.;
/* subsampling for gpow and clip estimation */
if (gainstep <= 0) gainstep=1;
gainpanel = sf_getstring("gainpanel");
/* gain reference: 'a' for all, 'e' for each, or number */
if (NULL != gainpanel) {
switch (gainpanel[0]) {
case 'a':
panel=GAIN_ALL;
break;
case 'e':
panel=GAIN_EACH;
break;
default:
if (0 ==sscanf(gainpanel,"%d",&panel) ||
panel < 1 || panel > n3)
sf_error("gainpanel= should be all,"
" each, or a number"
" between 1 and %d",n3);
panel--;
break;
}
free (gainpanel);
}
sf_unpipe(in,sf_filesize(in)*sizeof(float));
}
if (!sf_getbool("allpos",&allpos)) allpos=false;
/* if y, assume positive data */
if (!sf_getbool("mean",&mean)) mean=false;
/* if y, bias on the mean value */
if (!sf_getfloat("bias",&pbias)) pbias=0.;
/* value mapped to the center of the color table */
if (!sf_getbool("polarity",&polarity)) polarity=false;
/* if y, reverse polarity (white is high by default) */
if (!sf_getbool("symcp",&symcp)) symcp=false;
/* if y, assume symmetric color palette of 255 colors */
if (!sf_getbool("verb",&verb)) verb=false;
/* verbosity flag */
} /* if !charin */
barfile = sf_getstring("bar");
/* file for scalebar data */
if (sfbyte) {
scalebar = (bool) (NULL != barfile);
if (scalebar) sf_putstring(out,"bar",barfile);
} else if (sfbar) {
scalebar = true;
} else {
if (!sf_getbool ("wantscalebar",&scalebar) &&
!sf_getbool ("scalebar",&scalebar)) scalebar = false;
/* if y, draw scalebar */
}
if (scalebar) {
nomin = (bool) (!sf_getfloat("minval",&barmin));
/* minimum value for scalebar (default is the data minimum) */
nomax = (bool) (!sf_getfloat("maxval",&barmax));
/* maximum value for scalebar (default is the data maximum) */
barbuf[0] = sf_ucharalloc(VP_BSIZE);
if (!sf_getbool("barreverse",&barreverse)) barreverse=false;
/* if y, go from small to large on the bar scale */
if (sfbyte || sfbar) {
if (sfbyte) {
bar = sf_output("bar");
sf_settype(bar,SF_UCHAR);
}
sf_putint(bar,"n1",VP_BSIZE+2*sizeof(float));
sf_putint(bar,"n2",1);
sf_putint(bar,"n3",n3);
if (!nomin) sf_putfloat(bar,"minval",barmin);
if (!nomax) sf_putfloat(bar,"maxval",barmax);
} else if (charin) {
if (NULL == barfile) {
barfile=sf_histstring(in,"bar");
if (NULL == barfile) sf_error("Need bar=");
}
bar = sf_input(barfile);
if (SF_UCHAR != sf_gettype(bar)) sf_error("Need uchar in bar");
if (nomin) nomin = (bool) (!sf_histfloat(bar,"minval",&barmin));
if (nomax) nomax = (bool) (!sf_histfloat(bar,"maxval",&barmax));
}
}
if (!sf_getbool("wantframenum",&framenum)) framenum = (bool) (n3 > 1);
/* if y, display third axis position in the corner */
x1 = o1-0.5*d1;
x2 = o1+(n1-1)*d1+0.5*d1;
y1 = o2-0.5*d2;
y2 = o2+(n2-1)*d2+0.5*d2;
if (!sfbyte && !sfbar) {
vp_stdplot_init (x1, x2, y1, y2, transp, false, yreverse, false);
vp_frame_init(in,"tlb",false);
/* if (scalebar && !nomin && !nomax)
vp_barframe_init (in,barmin,barmax); */
}
if (transp) {
f=x1; x1=y1; y1=f;
f=x2; x2=y2; y2=f;
}
if (yreverse) {
f=y1; y1=y2; y2=f;
}
if (xreverse) {
f=x1; x1=x2; x2=f;
}
buf = sf_ucharalloc2(n1,n2);
if (!charin) {
data = sf_floatalloc2(n1,n2);
if (GAIN_ALL==panel || panel >= 0) {
pos = sf_tell(in);
if (panel > 0) sf_seek(in,
pos+panel*n1*n2*sizeof(float),
SEEK_SET);
vp_gainpar (in,data,n1,n2,gainstep,
pclip,phalf,&clip,&gpow,mean,&pbias,
n3,panel,panel);
if (verb) sf_warning("panel=%d bias=%g clip=%g gpow=%g",
panel,pbias,clip,gpow);
if (sfbyte) sf_putfloat(out,"clip",clip);
sf_seek(in,pos,SEEK_SET); /* rewind */
}
}
if (!sfbyte && !sfbar) {
/* initialize color table */
if (NULL == (color = sf_getstring("color"))) color="i";
/* color scheme (default is i) */
if (!sf_getint ("nreserve",&nreserve)) nreserve = 8;
/* reserved colors */
vp_rascoltab (nreserve, color);
}
for (i3=0; i3 < n3; i3++) {
if (!charin) {
if (GAIN_EACH == panel) {
if (eclip) clip=0.;
if (egpow) gpow=0.;
vp_gainpar (in,data,n1,n2,gainstep,
pclip,phalf,&clip,&gpow,
mean,&pbias,n3,0,n3);
if (verb) sf_warning("bias=%g clip=%g gpow=%g",pbias,clip,gpow);
} else {
sf_floatread(data[0],n1*n2,in);
}
if (1 == panel || GAIN_EACH == panel || 0==i3) {
/* initialize the conversion table */
if(!allpos) { /* negative and positive values */
for (it=1; it<=TSIZE/2; it++) {
if (symcp) {
tbl[TSIZE-it] = (gpow != 1.)?
254*(pow(((TSIZE-2.0*it)/TSIZE),gpow)+1.)/2.+1.:
254*( ((TSIZE-2.0*it)/TSIZE) +1.)/2.+1.;
tbl[it] = 255 - tbl[TSIZE-it] + 1.0;
} else {
tbl[TSIZE-it] = (gpow != 1.)?
252*(pow(((TSIZE-2.0*it)/TSIZE),gpow)+1.)/2.+3.:
252*( ((TSIZE-2.0*it)/TSIZE) +1.)/2.+3.;
tbl[it] = 255 - tbl[TSIZE-it] + 2.0;
}
}
bias = TSIZE/2.;
gain = TSIZE/(2.*clip);
} else { /* all positive */
if (symcp) {
for (it=1; it < TSIZE ; it++) {
tbl[it] = 255*((it-1.0)/TSIZE) + 1.0;
}
} else {
for (it=1; it < TSIZE ; it++) {
tbl[it] = 256*((it-1.0)/TSIZE);
}
}
bias = 0.;
gain = TSIZE/clip;
}
tbl[0] = tbl[1];
tbl[TSIZE] = tbl[TSIZE-1];
if (polarity) { /* switch polarity */
for (it=0; it<=TSIZE; it++) {
tbl[it]=255-tbl[it];
}
}
}
/* convert to bytes */
for (i2=0; i2 < n2; i2++) {
for (i1=0; i1 < n1; i1++) {
j = (data[i2][i1]-pbias)*gain + bias;
if (j < 0) j=0;
else if (j > TSIZE) j=TSIZE;
buf[i2][i1] = tbl[j];
}
}
} else {
sf_ucharread(buf[0],n1*n2,in);
}
if (!sfbyte && !sfbar) {
if (yreverse) {
for (i2=0; i2 < n2; i2++) {
for (i1=0; i1 < n1/2; i1++) {
tmp = buf[i2][i1];
buf[i2][i1] = buf[i2][n1-1-i1];
buf[i2][n1-1-i1] = tmp;
}
}
}
if ((xreverse && transp) || (!xreverse && !transp)) {
for (i2=0; i2 < n2/2; i2++) {
for (i1=0; i1 < n1; i1++) {
tmp = buf[i2][i1];
buf[i2][i1] = buf[n2-1-i2][i1];
buf[n2-1-i2][i1] = tmp;
}
}
}
if (i3 > 0) vp_erase ();
if (framenum) vp_framenum(o3+i3*d3);
vp_frame();
vp_uraster (buf, false, 256, n1, n2,
x1, y1, x2, y2, orient);
vp_simpleframe();
}
if (scalebar) {
if (!charin) {
if (nomin) barmin = data[0][0];
if (nomax) barmax = data[0][0];
if (nomin || nomax) {
for (i2=0; i2 < n2; i2++) {
for (i1=0; i1 < n1; i1++) {
dat = data[i2][i1];
if (nomin && barmin > dat) barmin = dat;
if (nomax && barmax < dat) barmax = dat;
}
}
}
for (it=0; it < VP_BSIZE; it++) {
if (barreverse) {
dat = (barmin*it + barmax*(VP_BSIZE-1-it))/(VP_BSIZE-1);
} else {
dat = (barmax*it + barmin*(VP_BSIZE-1-it))/(VP_BSIZE-1);
}
j = (dat-pbias)*gain + bias;
if (j < 0) j=0;
else if (j > TSIZE) j=TSIZE;
barbuf[0][it] = tbl[j];
}
} else {
sf_floatread(minmax,2,bar);
sf_ucharread(barbuf[0],VP_BSIZE,bar);
if (nomin) barmin=minmax[0];
if (nomax) barmax=minmax[1];
}
if (sfbyte || sfbar) {
sf_floatwrite(&barmin,1,bar);
sf_floatwrite(&barmax,1,bar);
sf_ucharwrite(barbuf[0],VP_BSIZE,bar);
} else {
if (barreverse) {
vp_barframe_init (in,barmax,barmin);
} else {
vp_barframe_init (in,barmin,barmax);
}
vp_barraster(VP_BSIZE, barbuf);
}
} /* if scalebar */
if (sfbyte) {
sf_ucharwrite(buf[0],n1*n2,out);
} else if (!sfbar) {
vp_purge();
}
} /* i3 loop */
exit (0);
}
int main (void)
{
float xval[NARRAY], zval[NARRAY];
int plotfat=1, ith, iflag, emph;
bool wantframe=false,option=true,animate=false;
float xll=1.705,yll=1.37,xur=11.945,yur=8.87;
float h=1.0,y=0.0,time=1.6,v=2.0,theta=30., xstart, zstart;
float a, b, xs, xg, surface,slop,xmin,zmin,xmax,zmax;
float xscale, zscale, dth, thtmp, xsp;
float tanth, sinth, costh, d, xr, zr, x,z, x1,z1, xend,zend;
vp_init();
/* set parameters */
a = v * time /2.;
b = sqrtf(a*a-h*h);
xs = y - h;
xg = y + h;
surface = 0.;
slop = 0.05*a;
xmin = -2.;
zmin = -1.;
xmax = 2.;
zmax = 2.;
/* set vplot scales */
vp_orig(xll,yur);
vp_uorig(xmin,zmin);
xscale = (xur-xll)/(xmax-xmin);
zscale = -(yur-yll)/(zmax-zmin);
vp_scale(xscale,zscale);
/* draw and annotate surface */
vp_fat(2*plotfat);
vp_color(7);
vp_umove(xmin,surface);
vp_udraw(xmax,surface);
vp_color(5);
vp_fat(plotfat);
vp_tjust(4,6);
vp_utext(xs-0.5*slop,surface-slop,8,0,"S");
vp_utext(xg,surface-slop,8,0,"G");
vp_utext(y,surface-slop,8,0,"M");
dth = 180./(NARRAY-1);
vp_color(4);
/* LOOP on theta (ith) to generate ellipse */
for (ith = 0; ith < NARRAY; ith++) {
thtmp = 90. - ith * dth;
thtmp = thtmp*SF_PI/180.;
tanth = tanf(thtmp);
sinth = sinf(thtmp);
costh = cosf(thtmp);
d = hypotf(a*sinth,b*costh);
xr = y - d*sinth - h*h*costh*costh*sinth/d;
zr = surface + d*costh - h*h*costh*sinth*sinth/d;
xval[ith] = xr;
zval[ith] = zr;
}
/* Draw ellipse */
vp_color(5);
vp_upline(xval,zval,NARRAY);
if (option) {
/* Loop on theta to draw SRG raypaths */
iflag = 0;
emph = 3;
for (ith = 0; ith < NARRAY; ith +=5) {
iflag++;
thtmp = 90. - ith * dth;
thtmp = thtmp*SF_PI/180.;
tanth = tanf(thtmp);
sinth = sinf(thtmp);
costh = cosf(thtmp);
d = hypotf(a*sinth,b*costh);
xr = y - d*sinth - h*h*costh*costh*sinth/d;
zr = surface + d*costh - h*h*costh*sinth*sinth/d;
/* Shot to reflection point */
vp_color(4);
x = xs;
z = surface;
x1 = xr;
z1 = zr;
if(iflag == emph) vp_color(6);
if(ith != 1 && ith != NARRAY) vp_uarrow(x,z,x1,z1,0.02*zmax);
if(iflag == emph) vp_color(4);
/* Annotate beta */
xend = (xs + xr)/2.;
zend = (surface + zr)/2.;
if(iflag == emph) {
vp_color(6);
vp_utext(xend-slop, zend+0.8*slop,8,0,"\\F9 b");
vp_color(4);
}
/* reflection point to geophone */
x = xr;
z = zr;
vp_umove(x,z);
x1 = xg;
z1 = surface;
if(iflag == emph) vp_color(6);
if(ith != 1 && ith != NARRAY) vp_uarrow(x,z,x1,z1,0.02*zmax);
if(iflag == emph) vp_color(6);
/* Annotate alpha */
xend = (xg + xr)/2.;
zend = (surface + zr)/2.;
if(iflag == emph) {
vp_color(6);
vp_utext(xend+slop, zend+0.5*slop,8,0,"\\F9 a");
vp_color(4);
}
if(animate) {
vp_erase(); /* clear screen, then redraw basic stuff */
/* redraw and annotate surface */
vp_fat(2*plotfat);
vp_color(7);
vp_umove(xmin,surface);
vp_udraw(xmax,surface);
vp_color(5);
vp_fat(plotfat);
vp_tjust(4,6);
vp_utext(xs-0.5*slop,surface-slop,8,0,"S");
vp_utext(xg,surface-slop,8,0,"G");
vp_utext(y,surface-slop,8,0,"M");
/* redraw ellipse */
vp_color(5);
vp_upline(xval,zval,NARRAY);
}
} /* end loop on theta */
} else {
/* Begin work for drawing dipping layer */
theta *= SF_PI/180.;
tanth = tanf(theta);
sinth = sinf(theta);
costh = cosf(theta);
d = hypotf(a*sinth,b*costh);
xr = y - d*sinth - h*h*costh*costh*sinth/d;
zr = surface + d*costh - h*h*costh*sinth*sinth/d;
xsp = y - h - 2*(d-h*sinth)*sinth;
xstart = xsp;
zstart = surface + d/costh + tanth * (xstart-y);
xend = 0.5*(xg + y);
zend = surface + d/costh + tanth * (xend-y);
/* Draw dipping reflector */
vp_color(2);
vp_umove(xstart,zstart);
vp_udraw(xend,zend);
vp_dash(0.,0.,0.,0.);
/* indicate angle theta */
vp_color(7);
vp_dash(.1,.1,.1,.1);
vp_umove(xend,zend);
vp_udraw(xend-0.5*h,zend);
vp_dash(.0,.0,.0,.0);
/* finite-offset raypaths */
vp_color(4);
/* Shot to reflection point */
vp_uarrow(xs,surface,xr,zr,0.02*zmax);
/* reflection point to geophone */
vp_uarrow(xr,zr,xg,surface,0.02*zmax);
/* text */
vp_color(5);
vp_fat(plotfat);
vp_tjust(4,6);
vp_utext(xr,zr+2.0*slop,8,0,"R");
vp_utext(xend-5*slop, zend-1.*slop,8,0,"\\F9 q");
}
if(wantframe) {
vp_dash(0.,0.,0.,0.);
vp_color(7);
vp_fat(1);
vp_umove(xmin,zmin);
vp_udraw(xmin,zmax);
vp_udraw(xmax,zmax);
vp_udraw(xmax,zmin);
vp_udraw(xmin,zmin);
}
return 0;
}
int main(int argc, char* argv[])
{
int n1,n2,n3, frame2,frame3, i1,i2,i3, iframe, np=3, orient;
int n1pix,n2pix, m1pix,m2pix, n1front,n2front, movie, nframe=1;
float point1, point2, **front, **side, **top, **topt, *x, *y, o1, d1, o2, d2;
float min, max, f, frame1, dframe, oo1, dd1;
bool nomin, nomax, yreverse;
char *label1, *label2, *unit1, *unit2;
off_t esize;
bool flat;
vp_contour cnt;
sf_file in=NULL;
sf_init(argc,argv);
in = sf_input("in");
vp_init();
if (SF_FLOAT != sf_gettype(in)) sf_error("Need float input");
if (!sf_histint(in,"n1",&n1)) sf_error("No n1= in input");
if (!sf_histint(in,"n2",&n2)) n2=1;
n3 = sf_leftsize(in,2);
esize = sf_esize(in);
sf_unpipe(in,n1*n2*n3*esize);
if (!sf_getint("orient",&orient)) orient=1;
/* function orientation */
if (!sf_getbool("yreverse",&yreverse)) yreverse=false;
front = sf_floatalloc2(n1,1);
side = sf_floatalloc2(1,n2);
top = sf_floatalloc2(n1,n2);
topt = (2==orient)? sf_floatalloc2(n2,n1): NULL;
nomin = (bool) !sf_getfloat("min",&min);
/* minimum function value */
nomax = (bool) !sf_getfloat("max",&max);
/* maximum function value */
if (nomin) min = +FLT_MAX;
if (nomax) max = -FLT_MAX;
if (nomin || nomax) {
for (i3=0; i3 < n3; i3++) {
sf_floatread(top[0],n1*n2,in);
for (i2=0; i2 < n2; i2++) {
for (i1=0; i1 < n1; i1++) {
f = top[i2][i1];
if (nomax && f > max) max=f;
if (nomin && f < min) min=f;
}
}
}
}
if (min == 0. && max == 0.) {
min = -1.;
max = 1.;
} else if (min == max) {
max *= 1.04;
min *= 0.96;
}
if (!sf_histfloat(in,"o1",&o1)) o1=0.;
if (!sf_histfloat(in,"d1",&d1)) d1=1.;
if (!sf_histfloat(in,"o2",&o2)) o2=0.;
if (!sf_histfloat(in,"d2",&d2)) d2=1.;
switch(orient) {
case 1:
default:
dd1 = (min-max)/np;
oo1 = max+0.5*dd1;
sf_putint(in,"n1",np);
sf_putfloat(in,"o1",oo1);
sf_putfloat(in,"d1",dd1);
sf_putint(in,"n2",n1);
sf_putfloat(in,"o2",o1);
sf_putfloat(in,"d2",d1);
sf_putint(in,"n3",n2);
sf_putfloat(in,"o3",o2);
sf_putfloat(in,"d3",d2);
break;
case 2:
dd1 = (max-min)/np;
oo1 = min+0.5*dd1;
sf_putint(in,"n2",np);
sf_putfloat(in,"o2",oo1);
sf_putfloat(in,"d2",dd1);
sf_putint(in,"n3",n2);
sf_putfloat(in,"o3",o2);
sf_putfloat(in,"d3",d2);
break;
case 3:
dd1 = (max-min)/np;
oo1 = min+0.5*dd1;
sf_putint(in,"n1",n2);
sf_putfloat(in,"o1",o2);
sf_putfloat(in,"d1",d2);
sf_putint(in,"n2",n1);
sf_putfloat(in,"o2",o1);
sf_putfloat(in,"d2",d1);
sf_putint(in,"n3",np);
sf_putfloat(in,"o3",oo1);
sf_putfloat(in,"d3",dd1);
break;
}
label1 = sf_histstring(in,"label1");
label2 = sf_histstring(in,"label2");
if (NULL != label1) {
sf_putstring(in,"label1","");
sf_putstring(in,"label2",label1);
free(label1);
}
if (NULL != label2) {
sf_putstring(in,"label3",label2);
free(label2);
}
unit1 = sf_histstring(in,"unit1");
unit2 = sf_histstring(in,"unit2");
if (NULL != unit1) {
sf_putstring(in,"unit1","");
sf_putstring(in,"unit2",unit1);
free(unit1);
}
if (NULL != unit2) {
sf_putstring(in,"unit3",unit2);
free(unit2);
}
if (!sf_getfloat("point1",&point1)) point1=0.5;
/* fraction of the vertical axis for front face */
if (!sf_getfloat("point2",&point2)) point2=0.5;
/* fraction of the horizontal axis for front face */
if (!sf_getfloat("frame1",&frame1)) frame1=0.5*(min+max);
if (!sf_getint("frame2",&frame2)) frame2=n1-1;
if (!sf_getint("frame3",&frame3)) frame3=0;
/* frame numbers for cube faces */
/* sanity check */
if (min < max) {
if (frame1 < min) frame1 = min;
if (frame1 > max) frame1 = max;
} else {
if (frame1 > min) frame1 = min;
if (frame1 < max) frame1 = max;
}
if (frame2 < 0) frame2 = 0;
if (frame3 < 0) frame3 = 0;
if (frame2 >= n1) frame2 = n1-1;
if (frame3 >= n2) frame3 = n2-1;
if (!sf_getint("movie",&movie)) movie=0;
/* 0: no movie, 1: movie over axis 1, 2: axis 2, 3: axis 3 */
if (!sf_getfloat("dframe",&dframe)) dframe=1;
/* frame increment in a movie */
switch (movie) {
case 0:
nframe = 1;
break;
case 1:
nframe = 0.5+(max-frame1)/dframe;
break;
case 2:
nframe = (n1-frame2)/dframe;
break;
case 3:
nframe = (n2-frame3)/dframe;
break;
default:
sf_error("movie=%d is outside [0,3]",movie);
break;
}
if (sf_getint("nframe",&iframe) && iframe < nframe) nframe=iframe;
/* number of frames in a movie */
if (nframe < 1) nframe=1;
if (!sf_getint("n1pix",&n1pix)) n1pix = n1/point1+n3/(1.-point1);
/* number of vertical pixels */
if (!sf_getint("n2pix",&n2pix)) n2pix = n2/point2+n3/(1.-point2);
/* number of horizontal pixels */
m1pix = VP_STANDARD_HEIGHT*72;
m2pix = VP_STANDARD_HEIGHT*72/VP_SCREEN_RATIO;
if (n1pix < m1pix) n1pix=m1pix;
if (n2pix < m2pix) n2pix=m2pix;
n1front = n1pix*point1;
n2front = n2pix*point2;
if (n1front <= 0) n1front=1;
if (n2front <= 0) n2front=1;
if (n1front >= n1pix) n1front=n1pix-1;
if (n2front >= n2pix) n2front=n2pix-1;
x = sf_floatalloc(n1);
y = sf_floatalloc(n2);
for (i1=0; i1 < n1; i1++) {
x[i1] = o1 + i1*d1;
}
for (i2=0; i2 < n2; i2++) {
y[i2] = o2 + i2*d2;
}
if (!sf_getbool("flat",&flat)) flat=true;
/* if n, display perspective view */
vp_cubeplot_init (n1pix, n2pix, n1front, n2front, flat, false);
vp_frame_init (in,"blt",false);
vp_plot_init(n3);
cnt = vp_contour_init(false,
n1,o1,d1,0.,
n2,o2,d2,0.);
for (iframe=0; iframe < nframe; iframe++) {
if (iframe > 0) vp_erase ();
for (i3=0; i3 < n3; i3++) {
vp_plot_set (i3);
/* front face */
switch(orient) {
case 1:
default:
sf_seek(in,(off_t) (i3*n1*n2+frame3*n1)*esize,SEEK_SET);
sf_floatread(front[0],n1,in);
vp_cubecoord(3,x[0],x[n1-1],min,max);
vp_umove(x[0],front[0][0]);
for (i1=1; i1 < n1; i1++) {
vp_udraw(x[i1],front[0][i1]);
}
break;
case 2:
sf_seek(in,(off_t) (i3*n1*n2+frame3*n1)*esize,SEEK_SET);
sf_floatread(front[0],n1,in);
if (yreverse) {
vp_cubecoord(3,min,max,x[n1-1],x[0]);
vp_umove(front[0][n1-1],x[n1-1]);
for (i1=n1-2; i1 >= 0; i1--) {
vp_udraw(front[0][i1],x[i1]);
}
} else {
vp_cubecoord(3,min,max,x[0],x[n1-1]);
vp_umove(front[0][0],x[0]);
for (i1=1; i1 < n1; i1++) {
vp_udraw(front[0][i1],x[i1]);
}
}
break;
case 3:
sf_seek(in,(off_t) (i3*n1*n2*esize),SEEK_SET);
sf_floatread(top[0],n1*n2,in);
vp_cubecoord(3,x[0],x[n1-1],y[0],y[n2-1]);
vp_contour_draw(cnt,false,top,frame1);
break;
}
/* side face */
switch(orient) {
case 1:
default:
for (i2=0; i2 < n2; i2++) {
sf_seek(in,(off_t) (i3*n1*n2+i2*n1+frame2)*esize,SEEK_SET);
sf_floatread(side[i2],1,in);
}
vp_cubecoord(2,y[0],y[n2-1],min,max);
vp_umove(y[0],side[0][0]);
for (i2=1; i2 < n2; i2++) {
vp_udraw(y[i2],side[i2][0]);
}
break;
case 2:
sf_seek(in,(off_t) (i3*n1*n2*esize),SEEK_SET);
sf_floatread(top[0],n1*n2,in);
/* transpose */
for (i2=0; i2 < n2; i2++) {
for (i1=0; i1 < n1; i1++) {
topt[i1][i2] = top[i2][i1];
}
}
if (yreverse) {
vp_cubecoord(2,y[0],y[n2-1],x[n1-1],x[0]);
} else {
vp_cubecoord(2,y[0],y[n2-1],x[0],x[n1-1]);
}
vp_contour_draw(cnt,false,topt,frame1);
break;
case 3:
for (i2=0; i2 < n2; i2++) {
sf_seek(in,(off_t) (i3*n1*n2+i2*n1+frame2)*esize,SEEK_SET);
sf_floatread(side[i2],1,in);
}
vp_cubecoord(2,min,max,y[0],y[n2-1]);
vp_umove(side[0][0],y[0]);
for (i2=1; i2 < n2; i2++) {
vp_udraw(side[i2][0],y[i2]);
}
break;
}
/* top face */
switch(orient) {
case 1:
default:
sf_seek(in,(off_t) (i3*n1*n2*esize),SEEK_SET);
sf_floatread(top[0],n1*n2,in);
vp_cubecoord(1,x[0],x[n1-1],y[0],y[n2-1]);
vp_contour_draw(cnt,false,top,frame1);
break;
case 2:
for (i2=0; i2 < n2; i2++) {
sf_seek(in,(off_t) (i3*n1*n2+i2*n1+frame2)*esize,SEEK_SET);
sf_floatread(side[i2],1,in);
}
vp_cubecoord(1,min,max,y[0],y[n2-1]);
vp_umove(side[0][0],y[0]);
for (i2=1; i2 < n2; i2++) {
vp_udraw(side[i2][0],y[i2]);
}
break;
case 3:
sf_seek(in,(off_t) (i3*n1*n2+frame3*n1)*esize,SEEK_SET);
sf_floatread(front[0],n1,in);
vp_cubecoord(1,x[0],x[n1-1],min,max);
vp_umove(x[0],front[0][0]);
for (i1=1; i1 < n1; i1++) {
vp_udraw(x[i1],front[0][i1]);
}
break;
}
}
vp_plot_unset();
vp_coordinates();
switch(orient) {
case 1:
default:
vp_cubeframe((frame1-oo1)/dd1,frame2,frame3);
break;
case 2:
vp_cubeframe(frame2,(frame1-oo1)/dd1,frame3);
break;
case 3:
vp_cubeframe(frame2,frame3,(frame1-oo1)/dd1);
break;
}
switch (movie) {
case 2:
frame2 += (int) dframe;
break;
case 3:
frame3 += (int) dframe;
break;
case 1:
frame1 += dframe;
break;
default:
break;
}
vp_purge();
} /* frame loop */
exit(0);
}
int main(int argc, char* argv[])
{
int nang, N;
float dx, dz;
int nx, nz;
float ox, oz;
int gnx, gnz;
float gdx, gdz, gox, goz;
struct point length;
int inter;
float TETAMAX, alpha2;
FILE *outfile;
int ii;
int rays, wfront, gap;
int lomx, first;
int nr, nrmax, nt;
int prcube, pr, ste;
int ns, nou;
float DSmax, dt, T, freq;
float *vel;
float ds, os, goox;
float xmin, xmax, zmin, zmax;
float depth;
struct point *pos;
struct heptagon *cube;
struct grid *out;
sf_file inp, ampl, time;
sf_init(argc,argv);
inp = sf_input("in");
/* GET MODEL PARAMETERS */
if (!sf_histint(inp,"n1",&nz)) sf_error("No n1= in input");
if (!sf_histint(inp,"n2",&nx)) sf_error("No n2= in input");
if (!sf_histfloat(inp,"d1",&dz)) sf_error("No d1= in input");
if (!sf_histfloat(inp,"d2",&dx)) sf_error("No d2= in input");
if (!sf_histfloat(inp,"o1",&oz)) sf_error("No o1= in input");
if (!sf_histfloat(inp,"o2",&ox)) sf_error("No o2= in input");
/* GET TRACING PARAMETERS */
if(!sf_getint("nang",&nang)) nang = 10; /* Number of take-off angles */
if(!sf_getint("rays",&rays)) rays = 0; /* If draw rays */
if(!sf_getint("wfront",&wfront)) wfront = 0; /* If draw wavefronts */
if(!sf_getint("gap",&gap)) gap = 1; /* Draw wavefronts every gap intervals */
if(!sf_getint("inter",&inter)) inter = 1; /* If use linear interpolation */
if(!sf_getfloat("DSmax",&DSmax)) DSmax = 5; /* Maximum distance between contiguos points of a wavefront */
if(!sf_getfloat("dt",&dt)) dt = 0.0005; /* time step */
if(!sf_getint("nt",&nt)) nt = 5; /* Number of time steps between wavefronts */
if(!sf_getint("nrmax",&nrmax)) nrmax = 2000; /* Maximum number of points that define a wavefront */
if(!sf_getint("lomx",&lomx)) lomx = 1; /* Use Lomax's waveray method */
if(!sf_getint("first",&first)) first = 1; /* Obtain first arrivals only */
if(!sf_getint("nou",&nou)) nou = 6;
/* GET GRIDDING PARAMETERS */
if(!sf_getint("gnx",&gnx)) gnx = nx; /* Coordinates of output grid */
if(!sf_getint("gnz",&gnz)) gnz = nz;
if(!sf_getfloat("gdx",&gdx)) gdx = dx;
if(!sf_getfloat("gdz",&gdz)) gdz = dz;
if(!sf_getfloat("gox",&goox)) goox = ox;
if(!sf_getfloat("goz",&goz)) goz = oz;
/* GET LOMAX SPECIFIC PARAMETERS */
if(!sf_getint("N",&N)) N = 3; /* Number of control points */
if(!sf_getfloat("TETAMAX",&TETAMAX)) TETAMAX = 1.5; /* Truncation parameter */
if(!sf_getfloat("alpha2",&alpha2)) alpha2 = 4.0; /* Width of gaussian weighting function */
if(!sf_getfloat("freq",&freq)) freq = 100.; /* Pseudo-frequency of waverays */
/* GET DEBUGGING INFO */
if(!sf_getint("prcube",&prcube)) prcube=0; /* For debugging porpouses */
if(!sf_getint("pr",&pr)) pr=0; /* For debugging porpouses */
/* GET SOURCE LOCATIONS */
if(!sf_getint("ns",&ns) || ns==0) ns=1; /* Number of source locations */
if(!sf_getfloat("ds",&ds)) ds=1.; /* interval between sources */
if(!sf_getfloat("os",&os)) os=0.; /* first source location */
if(!sf_getfloat("depth",&depth)) depth=dz; /* Depth location of sources */
pos = (struct point *) sf_alloc (ns,sizeof(struct point));
for(ii=0;ii<ns;ii++) {
pos[ii] = makepoint(ii*ds + os, depth);
}
/* PREPARE OUTPUT */
ampl = sf_output("ampl");
sf_putint(ampl,"n1",gnz);
sf_putint(ampl,"n2",gnx);
sf_putint(ampl,"n3",ns);
sf_putfloat(ampl,"d1",gdz);
sf_putfloat(ampl,"d2",gdx);
sf_putfloat(ampl,"d3",ds);
sf_putfloat(ampl,"o1",goz);
sf_putfloat(ampl,"o2",goox);
sf_putfloat(ampl,"o3",os);
time = sf_output("time");
sf_putint(time,"n1",gnz);
sf_putint(time,"n2",gnx);
sf_putint(time,"n3",ns);
sf_putfloat(time,"d1",gdz);
sf_putfloat(time,"d2",gdx);
sf_putfloat(time,"d3",ds);
sf_putfloat(time,"o1",goz);
sf_putfloat(time,"o2",goox);
sf_putfloat(time,"o3",os);
/* READ VELOCITY MODEL */
vel = sf_floatalloc(nx*nz+2);
sf_floatread(vel,nx*nz,inp);
/* ALLOCATE MEMORY FOR OUTPUT */
out = (struct grid *) sf_alloc (1,sizeof(struct grid));
out->time = sf_floatalloc (gnx*gnz);
out->ampl = sf_floatalloc (gnx*gnz);
out->flag = sf_intalloc (gnx*gnz);
T = 1. / freq;
length = makepoint((nx-1)*dx,(nz-1)*dz);
cube = (struct heptagon *) sf_alloc (nrmax,sizeof(struct heptagon));
/* FOR DEBUGGING PORPOUSES, PRINT TO FILE */
if(pr||prcube) {
outfile = fopen("junk","w");
} else {
outfile = NULL;
}
/* SET DISPLAY IN ORDER TO SHOW RAYS ON SCREEN */
/* NOTE: THIS PROGRAM USES DIRECT CALLS TO LIB_VPLOT
* TO DRAW THE RAYS AND THE WAVEFRONTS */
if(rays || wfront) {
setgraphics(ox, oz, length.x, length.z);
/*
vp_color(BLUE);
for(ii=0;ii<gnx;ii++) {
vp_umove(ii*gdx+gox, goz); vp_udraw(ii*gdx+gox, (gnz-1)*gdz+goz); }
for(ii=0;ii<gnz;ii++) {
vp_umove(gox, ii*gdz+goz); vp_udraw((gnx-1)*gdx+gox, ii*gdz+goz); }
*/
}
norsar_init(gnx,gnz,
TETAMAX,N,alpha2,inter,
nx,nz,ox,oz,dx,dz,length);
/* ALGORITHM:
* For every source: */
for(ii=0;ii<ns;ii++) {
ste = 0;
gox = goox + pos[ii].x;
sf_warning("\nSource #%d\n", ii);
/* 1.- Construct the inital wavefront */
nr = nang;
initial (pos[ii], cube, vel, dt, nt, T, lomx, nr, out);
gridding_init(gnx,gnz,
gdx,gdz,gox,goz,
outfile);
/* run while the wavefront is not too small */
while (nr > 4) {
ste++;
/* 2.- Propagate wavefront */
wavefront (cube, nr, vel, dt, nt, T, lomx);
if(prcube || pr) {
fprintf(outfile,"\n\nwavefront");
printcube(cube, nr, outfile);
}
/* 3.- Get rid of caustics */
if(first) {
if(ste%2==1) {
caustics_up (cube, 0, nr);
} else {
caustics_down (cube, nr-1, nr);
}
if(prcube || pr) {
fprintf(outfile,"\n\ncaustics");
printcube(cube, nr, outfile);
}
}
/* 4.- Eliminate rays that cross boundaries, defined
by xmin, xmax, zmin, zmax.
Note that the computational grid is a little bigger
than the ouput grid. */
xmin = gox-nou*gdx; xmax = 2*pos[ii].x-gox+nou*gdx;
zmin = oz-nou*gdz; zmax = length.z+oz+nou*gdz;
mark_pts_outofbounds (cube, nr, xmin, xmax, zmin, zmax);
if(prcube) {
fprintf(outfile, "\n\nboundaries");
printcube(cube, nr, outfile);
}
/* 5.- Rearrange cube */
makeup(cube, &nr);
if(nr<4) break;
if(prcube || pr) {
fprintf(outfile, "\n\nmakeup");
printcube(cube, nr, outfile);
}
/* 6.- Calculate amplitudes for new wavefront */
amplitudes (cube, nr);
if(prcube) {
fprintf(outfile, "\n\namplitudes");
printcube(cube, nr, outfile);
}
/* 7.- Draw rays */
if(rays)
draw_rays (cube, nr);
/* 8.- Draw wavefront */
if(wfront && (ste%gap==0))
draw_wavefronts (cube, nr, DSmax);
/* 9.- Parameter estimation at receivers */
gridding (cube, nr, out, DSmax, (ste-1)*nt*dt, vel, first); /* pos[ii]); */
/* 10.- Interpolate new points of wavefront */
interpolation (cube, &nr, nrmax, DSmax); /* 0); */
if(prcube) {
fprintf(outfile,"\n\ninterpolation");
printcube(cube, nr, outfile);
}
/* 11.- Prepare to trace new wavefront */
movwavf (cube, nr);
if(prcube) {
fprintf(outfile,"\n\nmovwavf");
printcube(cube, nr, outfile);
}
if((wfront || rays) && (ste%gap==0)) vp_erase();
}
/* Finally interpolate amplitude and traveltime values to
receivers that has not being covered. */
TwoD_interp (out, gnx, gnz);
sf_floatwrite(out->time, gnx * gnz, time);
sf_floatwrite(out->ampl, gnx * gnz, ampl);
}
if(pr||prcube)
fclose(outfile);
exit(0);
}
int main(int argc, char* argv[])
{
bool transp, start, scalebar, nomin=true, nomax=true, barreverse, framenum;
int n1, n2, n3, i1, i2, i3, len, nreserve;
float min1, max1, min2, max2, o3, d3, o1, d1, xi, yi, tt;
float **x, **y, **tmp, *symbolsz=NULL, symsize, xc, yc;
float ***data=NULL, barmin, barmax, minmax[2];
char *symbol, sym[2]=" ", *color=NULL, *barfile;
unsigned char **z=NULL, *barbuf[1];
sf_datatype type;
sf_file in, depth, bar=NULL;
sf_init(argc,argv);
in = sf_input("in");
vp_init();
if (NULL != sf_getstring("depth")) {
depth = sf_input("depth"); /* values for colored plots */
if (SF_UCHAR != sf_gettype(depth))
sf_error("Need uchar in depth");
} else {
depth = NULL;
}
if (!sf_histint(in,"n1",&n1)) sf_error("No n1= in input");
if (!sf_histint(in,"n2",&n2)) n2=1;
n = n1*n2;
n3 = sf_leftsize(in,2);
if (n3 > 1) {
if (!sf_histfloat(in,"o3",&o3)) o3=0.;
if (!sf_histfloat(in,"d3",&d3)) d3=1.;
}
x = sf_floatalloc2(n1,n2);
y = sf_floatalloc2(n1,n2);
t = sf_floatalloc(n);
if (!sf_getbool("scalebar",&scalebar)) scalebar=false;
/* if y, draw scalebar */
if (!sf_getbool("wantframenum",&framenum)) framenum = (bool) (n3 > 1);
/* if y, display third axis position in the corner */
if (NULL != depth) {
z = sf_ucharalloc2(n1,n2);
/* initialize color table */
if (NULL == (color = sf_getstring("color"))) color="j";
/* color scheme (default is j) */
if (!sf_getint ("nreserve",&nreserve)) nreserve = 8;
/* reserved colors */
vp_rascoltab(nreserve,color);
if (scalebar) {
barfile = sf_getstring("bar");
/* file for scalebar data */
if (NULL == barfile) {
barfile=sf_histstring(depth,"bar");
if (NULL == barfile) sf_error("Need bar=");
}
nomin = (bool) (!sf_getfloat("minval",&barmin));
/* minimum value for scalebar (default is the data minimum) */
nomax = (bool) (!sf_getfloat("maxval",&barmax));
/* maximum value for scalebar (default is the data maximum) */
bar = sf_input(barfile);
if (SF_UCHAR != sf_gettype(bar)) sf_error("Need uchar in bar");
if (nomin) nomin = (bool) (!sf_histfloat(bar,"minval",&barmin));
if (nomax) nomax = (bool) (!sf_histfloat(bar,"maxval",&barmax));
barbuf[0] = (unsigned char*) sf_alloc(VP_BSIZE,sizeof(unsigned char));
if (!sf_getbool("barreverse",&barreverse)) barreverse=false;
/* if y, go from small to large on the bar scale */
}
}
if (!sf_getfloat("pclip",&pclip)) pclip=100.; /* clip percentile */
type = sf_gettype(in);
switch (type) {
case SF_FLOAT:
if (!sf_histfloat(in,"o1",&o1)) o1=0.;
if (!sf_histfloat(in,"d1",&d1)) d1=1.;
for (i2=0; i2 < n2; i2++) {
for (i1=0; i1 < n1; i1++) {
x[i2][i1] = o1 + i1*d1;
}
}
break;
case SF_COMPLEX:
data = sf_floatalloc3(2,n1,n2);
break;
default:
sf_error("Wrong data type (need float or complex)");
}
vp_plot_init(n2);
symbol = sf_getstring("symbol");
/* if set, plot with symbols instead of lines */
if (NULL != symbol) {
len = strlen(symbol);
if (len < n2) {
symbol = (char*) sf_realloc(symbol,n2,sizeof(char));
for (i2=len; i2 < n2; i2++) {
symbol[i2] = symbol[i2 % len];
}
}
symbolsz = sf_floatalloc(n2);
if (!sf_getfloats("symbolsz",symbolsz,n2)) {
/* symbol size (default is 2) */
for (i2 = 0; i2 < n2; i2++)
symbolsz[i2] = 2./33.;
} else {
for (i2 = 0; i2 < n2; i2++)
symbolsz[i2] /= 33.;
}
}
if (!sf_getbool ("transp",&transp)) transp=false;
/* if y, transpose the axes */
for (i3 = 0; i3 < n3; i3++) {
if (SF_COMPLEX == type) {
sf_floatread(data[0][0],2*n,in);
for (i2=0; i2 < n2; i2++) {
for (i1=0; i1 < n1; i1++) {
x[i2][i1] = data[i2][i1][0];
y[i2][i1] = data[i2][i1][1];
}
}
getminmax(x[0],&min1,&max1);
} else {
sf_floatread(y[0],n,in);
min1=o1;
max1=o1+(n1-1)*d1;
}
getminmax(y[0],&min2,&max2);
if (NULL != depth) sf_ucharread(z[0],n,depth);
vp_stdplot_init (min1, max1, min2, max2,
transp,false,false,true);
vp_frame_init(in,"blt",false);
if (transp) {
tmp=x; x=y; y=tmp;
tt=max1; max1=max2; max2=tt;
tt=min1; min1=min2; min2=tt;
}
if (i3 > 0) vp_erase();
if (framenum) vp_framenum(o3+i3*d3);
vp_frame();
for (i2=0; i2 < n2; i2++) {
vp_plot_set (i2);
symsize = 2./33.;
if (NULL != symbol) {
sym[0] = symbol[i2];
symsize = symbolsz[i2];
}
start = true;
for (i1=0; i1 < n1; i1++) {
xi = x[i2][i1];
yi = y[i2][i1];
if (NULL != depth) vp_color(z[i2][i1]+256);
if (isfinite(xi) &&
isfinite(yi)) {
if (NULL != symbol) {
vp_umove(xi,yi);
vp_where (&xc, &yc);
vp_tjust (TH_SYMBOL, TV_SYMBOL);
vp_gtext (xc,yc,symsize,0.,0.,symsize,sym);
} else if (start) {
vp_umove(xi,yi);
start=false;
} else {
vp_udraw(xi,yi);
}
} else {
start=true;
}
}
}
if (depth && scalebar) {
sf_floatread(minmax,2,bar);
sf_ucharread(barbuf[0],VP_BSIZE,bar);
if (nomin) barmin=minmax[0];
if (nomax) barmax=minmax[1];
if (barreverse) {
vp_barframe_init (depth,barmax,barmin);
} else {
vp_barframe_init (depth,barmin,barmax);
}
vp_barraster(VP_BSIZE, barbuf);
}
if (transp) {
tmp=x; x=y; y=tmp;
tt=max1; max1=max2; max2=tt;
tt=min1; min1=min2; min2=tt;
}
}
exit(0);
}