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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <gset.h>
include <mach.h>
include <pkg/rg.h>
include <pkg/gtools.h>
include "icfit.h"
# ICG_SAMPLE -- Mark sample.
procedure icg_sampler (ic, gp, gt, x, npts, pltype)
pointer ic # ICFIT pointer
pointer gp # GIO pointer
pointer gt # GTOOLS pointer
real x[npts] # Ordinates of graph
int npts # Number of data points
int pltype # Plot line type
pointer rg
int i, axis, pltype1
real xl, xr, yb, yt, dy
real x1, x2, y1, y2, y3
int gstati(), stridxs(), gt_geti()
pointer rg_xrangesr()
begin
if (stridxs ("*", Memc[IC_SAMPLE(ic)]) > 0)
return
# Find axis along which the independent data is plotted.
if (IC_AXES(ic,IC_GKEY(ic),1) == 'x')
axis = 1
else if (IC_AXES(ic,IC_GKEY(ic),2) == 'x')
axis = 2
else
return
if (gt_geti (gt, GTTRANSPOSE) == YES)
axis = mod (axis, 2) + 1
pltype1 = gstati (gp, G_PLTYPE)
call gseti (gp, G_PLTYPE, pltype)
rg = rg_xrangesr (Memc[IC_SAMPLE(ic)], x, npts)
switch (axis) {
case 1:
call ggwind (gp, xl, xr, yb, yt)
dy = yt - yb
y1 = yb + dy / 100
y2 = y1 + dy / 20
y3 = (y1 + y2) / 2
do i = 1, RG_NRGS(rg) {
x1 = x[RG_X1(rg, i)]
x2 = x[RG_X2(rg, i)]
if ((x1 > xl) && (x1 < xr))
call gline (gp, x1, y1, x1, y2)
if ((x2 > xl) && (x2 < xr))
call gline (gp, x2, y1, x2, y2)
call gline (gp, x1, y3, x2, y3)
}
case 2:
call ggwind (gp, yb, yt, xl, xr)
dy = yt - yb
y1 = yb + dy / 100
y2 = y1 + dy / 20
y3 = (y1 + y2) / 2
do i = 1, RG_NRGS(rg) {
x1 = x[RG_X1(rg, i)]
x2 = x[RG_X2(rg, i)]
if ((x1 > xl) && (x1 < xr))
call gline (gp, y1, x1, y2, x1)
if ((x2 > xl) && (x2 < xr))
call gline (gp, y1, x2, y2, x2)
call gline (gp, y3, x1, y3, x2)
}
}
call gseti (gp, G_PLTYPE, pltype1)
call rg_free (rg)
end
# ICG_DSAMPLE -- Delete sample region.
procedure icg_dsampler (wx, wy, ic, gp, gt, x, npts)
real wx, wy # Region to be deleted
pointer ic # ICFIT pointer
pointer gp # GIO pointer
pointer gt # GTOOLS pointer
real x[npts] # Ordinates of graph
int npts # Number of data points
pointer sp, str, rg
int i, j, axis, pltype1
real w, diff
real xl, xr, yb, yt, dy
real x1, x2, y1, y2, y3
int gstati(), stridxs(), gt_geti()
pointer rg_xrangesr()
begin
if (stridxs ("*", Memc[IC_SAMPLE(ic)]) > 0)
return
# Find axis along which the independent data is plotted.
if (IC_AXES(ic,IC_GKEY(ic),1) == 'x')
axis = 1
else if (IC_AXES(ic,IC_GKEY(ic),2) == 'x')
axis = 2
else
return
if (gt_geti (gt, GTTRANSPOSE) == YES)
axis = mod (axis, 2) + 1
# Initialize
pltype1 = gstati (gp, G_PLTYPE)
call gseti (gp, G_PLTYPE, 0)
rg = rg_xrangesr (Memc[IC_SAMPLE(ic)], x, npts)
call smark (sp)
call salloc (str, SZ_FNAME, TY_CHAR)
Memc[IC_SAMPLE(ic)] = EOS
# Find nearest sample region
if (axis == 1)
w = wx
else
w = wy
j = 1
diff = MAX_REAL
do i = 1, RG_NRGS(rg) {
x1 = x[RG_X1(rg, i)]
x2 = x[RG_X2(rg, i)]
if (w < x1) {
if (x1 - w < diff) {
diff = x1 - wx
j = i
}
} else if (wx > x2) {
if (wx - x2 < diff) {
diff = x1 - wx
j = i
}
} else {
diff = 0.
j = i
}
}
# Erase sample region and reset sample string
switch (axis) {
case 1:
call ggwind (gp, xl, xr, yb, yt)
dy = yt - yb
y1 = yb + dy / 100
y2 = y1 + dy / 20
y3 = (y1 + y2) / 2
do i = 1, RG_NRGS(rg) {
x1 = x[RG_X1(rg, i)]
x2 = x[RG_X2(rg, i)]
if (i != j) {
if (x1 == int(x1) && x2 == int(x2))
call sprintf (Memc[str], SZ_FNAME, " %d:%d")
else
call sprintf (Memc[str], SZ_FNAME, " %g:%g")
call pargr (x1)
call pargr (x2)
call strcat (Memc[str], Memc[IC_SAMPLE(ic)], IC_SZSAMPLE)
} else {
if ((x1 > xl) && (x1 < xr))
call gline (gp, x1, y1, x1, y2)
if ((x2 > xl) && (x2 < xr))
call gline (gp, x2, y1, x2, y2)
call gline (gp, x1, y3, x2, y3)
IC_NEWX(ic) = YES
}
}
case 2:
call ggwind (gp, yb, yt, xl, xr)
dy = yt - yb
y1 = yb + dy / 100
y2 = y1 + dy / 20
y3 = (y1 + y2) / 2
do i = 1, RG_NRGS(rg) {
x1 = x[RG_X1(rg, i)]
x2 = x[RG_X2(rg, i)]
if (i != j) {
if (x1 == int(x1) && x2 == int(x2))
call sprintf (Memc[str], SZ_FNAME, " %d:%d")
else
call sprintf (Memc[str], SZ_FNAME, " %g:%g")
call pargr (x1)
call pargr (x2)
call strcat (Memc[str], Memc[IC_SAMPLE(ic)], IC_SZSAMPLE)
} else {
if ((x1 > xl) && (x1 < xr))
call gline (gp, y1, x1, y2, x1)
if ((x2 > xl) && (x2 < xr))
call gline (gp, y1, x2, y2, x2)
call gline (gp, y3, x1, y3, x2)
IC_NEWX(ic) = YES
}
}
}
if (Memc[IC_SAMPLE(ic)] == EOS)
call strcat ("*", Memc[IC_SAMPLE(ic)], IC_SZSAMPLE)
call gseti (gp, G_PLTYPE, pltype1)
call rg_free (rg)
call sfree (sp)
end
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