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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <gset.h>
define MSIZE 2. # Mark size
# ICG_ADD -- Add a point.
procedure icg_addr (gp, wx, wy, wt, x, y, w1, w2, npts)
pointer gp # GIO pointer
real wx # X point to insert
real wy # Y point to insert
real wt # Weight of point to add
real x[npts] # Independent variable
real y[npts] # Dependent variable
real w1[npts] # Current weights
real w2[npts] # Initial weights
int npts # Number of points
int i, j
begin
# Find the place to insert the new point.
if (x[1] < x[npts])
for (i = npts; (i > 0) && (wx < x[i]); i = i - 1)
;
else
for (i = npts; (i > 0) && (wx > x[i]); i = i - 1)
;
# Shift the data to insert the new point.
for (j = npts; j > i; j = j - 1) {
x[j+1] = x[j]
y[j+1] = y[j]
w1[j+1] = w1[j]
w2[j+1] = w2[j]
}
# Add the new point and increment the number of points.
i = i + 1
x[i] = wx
y[i] = wy
w1[i] = wt
w2[i] = wt
npts = npts + 1
# Mark the point
call gmark (gp, real (x[i]), real (y[i]), GM_PLUS, MSIZE, MSIZE)
end
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