static void labelaxis(struct Axis *axis)
{
float vs, ch, xc, yc, pos1, pos2;
float x, y, xup, yup, xpath, ypath;
ch = labelsz / 33.;
vs = 0.75 * ch;
if (axis == &axis2) {
pos1 = 0.5*(max1 + min1);
pos2 = where1? min2: max2;
x = xc;
xpath = ch ;
xup = 0.;
ypath = 0.;
yup = ch;
vp_umove (pos1, pos2);
vp_where (&xc, &yc);
y = where1?
yc + ch + 2*vs:
yc - ch - 2*vs;
} else {
pos1 = where2? min1: max1;
pos2 = 0.5*(min2 + max2);
y = yc;
ypath = labelrot? ch: -ch;
yup = 0.;
xpath = 0.;
xup = labelrot? -ch: ch;
vp_umove (pos1, pos2);
vp_where (&xc, &yc);
if (labelrot) {
x = where2?
xc - ch - 2*vs:
xc + ch + 2*vs;
} else {
x += where2?
- (ch+vs):
+ (ch+vs);
}
}
vp_fat (labelfat);
tjust((axis == &axis2)? where1: where2);
vp_gtext (x, y, xpath, ypath, xup, yup, axis->label);
}
void vp_framenum (int i3, float d3, float o3,
float xmin, float ymin, float labelsz)
{
float ch, xc, yc, f;
char string[80];
vp_fat (0);
f = i3 * d3 + o3;
sprintf (string, (fmodf(f,1.) == 0.)? "%.0f": "%.3f", f);
vp_umove (xmin, ymin);
vp_where (&xc, &yc);
ch = labelsz / 33.;
tjust (true);
vp_gtext (xc, yc - 4 * ch, ch, 0., 0., ch, string);
}
void vp_plottitle(void)
{
float labelvs, labelch, ch, vs, xc, yc, pos1, pos2;
float x, y, xup, yup, xpath, ypath;
ch = titlesz / 33.;
vs = ch * 0.6;
vp_fat (titlefat);
vp_color(axiscol);
if (( verttitle && wheretitle != where2) ||
(!verttitle && wheretitle != where1)) {
labelch = labelsz / 33.;
labelvs = 0.75 * labelch;
} else {
labelch = 0.;
labelvs = 0.;
}
if (!verttitle) {
pos1 = 0.5*(max1+min1);
pos2 = wheretitle? max2: min2;
ypath = 0.;
yup = ch;
xpath = ch;
xup = 0.;
vp_umove (pos1, pos2);
vp_where (&xc, &yc);
x = xc;
y = wheretitle?
yc + vs + labelch + 3*labelvs:
yc - vs - labelch - 3*labelvs;
} else {
pos2 = 0.5*(max2+min2);
pos1 = wheretitle? max1: min1;
ypath = labelrot? 0.: -ch;
yup = 0.;
xpath = 0.;
xup = labelrot? 0.: ch;
vp_umove (pos1, pos2);
vp_where (&xc, &yc);
y = yc;
if (labelrot) {
x = wheretitle?
xc - vs - labelch - 3*labelvs:
xc + vs + labelch + 3*labelvs;
} else {
x += wheretitle?
-(ch + vs + labelvs):
+(ch + vs + labelvs);
}
}
tjust(wheretitle);
vp_gtext(x, y, xpath, ypath, xup, yup ,title);
}
static void makelabel (float num, float num2, struct Axis *axis)
{
float xc, yc, lmin1, lmin2, lmax1, lmax2, point1, point2;
float x, y, xup, yup, xpath, ypath, ftmp, num1, ch, vs;
const float eps=.0000001;
char string[80];
ch = labelsz / 33.;
vs = 0.75 * ch;
if (axis == &axis2) {
lmin1 = min2;
lmax1 = max2;
lmin2 = min1;
lmax2 = max1;
} else {
lmax1 = max1;
lmin1 = min1;
lmax2 = max2;
lmin2 = min2;
}
if (lmax1 < lmin1 ||
(xreverse && axis == &axis1) ||
(yreverse && axis == &axis2)) {
ftmp = lmin1;
lmin1 = lmax1;
lmax1 = ftmp;
}
if (fabsf (num) < (lmax1 - lmin1) / 10000) num = 0.0;
if (!wheretics) {
if (axis == &axis2) {
point1 = num;
point2 = where1? min2: max2;
} else {
point1 = where2? max2: min2;
point2 = num;
}
} else {
if (axis == &axis2) {
point1 = num;
point2 = axis->or;
} else {
point1 = axis->or;
point2 = num;
}
}
vp_umove (point1, point2);
vp_where (&xc, &yc);
num1 = (fabsf(num2) < eps)? 0.0: num2;
sprintf (string, "%1.5g", num1);
if (axis == &axis1) {
y = yc;
xpath = 0.;
ypath = labelrot * ch;
xup = -labelrot * ch;
yup = 0;
if (!where2) {
x = xc - vs;
if (!labelrot) x -= (ch + vs);
} else {
x = xc + vs;
if (!labelrot) x += (ch + vs);
}
} else {
x = xc;
yup = ch;
xpath = ch;
ypath = 0.;
xup = 0.;
y = where1? yc - vs: yc + vs;
}
tjust ((axis == &axis2)? where1: where2);
vp_gtext (x, y, xpath, ypath, xup, yup, string);
}
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);
}