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include <imhdr.h>
include <gset.h>
# RG_XPLINE -- Plot a line of reference and input image.
procedure rg_xpline (gd, imr, im, nliner, xshift, yshift)
pointer gd #I pointer to the graphics stream
pointer imr #I pointer to the reference image
pointer im #I pointer to the image
int nliner #I the reference line
int xshift #I x shift
int yshift #I y shift
int i, rncols, rnlines, incols, inlines
pointer sp, title, xr, xi, ptrr, ptri
real ymin, ymax, tymin, tymax
int strlen()
pointer imgl1r(), imgl2r()
begin
# Return if no graphics stream.
if (gd == NULL)
return
# Check for valid line number.
rncols = IM_LEN(imr,1)
if (IM_NDIM(imr) == 1)
rnlines = 1
else
rnlines = IM_LEN(imr,2)
incols = IM_LEN(im,1)
if (IM_NDIM(im) == 1)
inlines = 1
else
inlines = IM_LEN(im,2)
if ((nliner < 1) || (nliner > rnlines))
return
if (((nliner + yshift) < 1) || ((nliner + yshift) > inlines))
return
# Allocate working space.
call smark (sp)
call salloc (title, SZ_LINE, TY_CHAR)
call salloc (xr, rncols, TY_REAL)
call salloc (xi, rncols, TY_REAL)
# Initialize the x data data.
do i = 1, rncols {
Memr[xr+i-1] = i
Memr[xi+i-1] = i - xshift
}
# Initalize the y data.
if (IM_NDIM(imr) == 1)
ptrr = imgl1r (imr)
else
ptrr = imgl2r (imr, nliner)
if (IM_NDIM(im) == 1)
ptri = imgl1r (im)
else
ptri = imgl2r (im, nliner + yshift)
call alimr (Memr[ptrr], rncols, ymin, ymax)
call alimr (Memr[ptri], incols, tymin, tymax)
ymin = min (ymin, tymin)
ymax = max (ymax, tymax)
# Construct the title.
call sprintf (Memc[title], SZ_LINE,
"Refimage: %s Image: %s\n")
call pargstr (IM_HDRFILE(imr))
call pargstr (IM_HDRFILE(im))
call sprintf (Memc[title+strlen(Memc[title])], SZ_LINE,
"Refline (solid): %d Inline (dashed): %d Xlag: %d Ylag: %d")
call pargi (nliner)
call pargi (nliner + yshift)
call pargi (xshift)
call pargi (yshift)
# Set up the axes labels and window.
call gclear (gd)
call gswind (gd, 1.0, real(rncols), ymin, ymax)
call glabax (gd, Memc[title], "Column Number", "Counts")
# Plot the two lines.
call gseti (gd, G_PLTYPE, GL_SOLID)
call gpline (gd, Memr[xr], Memr[ptrr], rncols)
call gseti (gd, G_PLTYPE, GL_DASHED)
call gpline (gd, Memr[xi], Memr[ptri], incols)
call gflush (gd)
call sfree (sp)
end
# RG_XPCOL -- Plot a column in the reference and input image.
procedure rg_xpcol (gd, imr, im, ncolr, xshift, yshift)
pointer gd #I pointer to the graphics stream
pointer imr #I pointer to the reference image
pointer im #I pointer to the image
int ncolr #I the line number
int xshift #I xshift to be applied
int yshift #I yshift to be applied
int i, rncols, rnlines, incols, inlines
pointer sp, title, xr, xi, ptrr, ptri
real ymin, ymax, tymin, tymax
int strlen()
pointer imgs1r(), imgs2r()
begin
# Return if no graphics stream.
if (gd == NULL)
return
# Check for valid column number.
rncols = IM_LEN(imr,1)
if (IM_NDIM(imr) == 1)
rnlines = 1
else
rnlines = IM_LEN(imr,2)
incols = IM_LEN(im,1)
if (IM_NDIM(im) == 1)
inlines = 1
else
inlines = IM_LEN(im,2)
if ((ncolr < 1) || (ncolr > rncols))
return
if (((ncolr - xshift) < 1) || ((ncolr - xshift) > incols))
return
# Allocate valid working space.
call smark (sp)
call salloc (title, SZ_LINE, TY_CHAR)
call salloc (xr, rnlines, TY_REAL)
call salloc (xi, inlines, TY_REAL)
# Initialize the data.
do i = 1, rnlines {
Memr[xr+i-1] = i
Memr[xi+i-1] = i - yshift
}
if (IM_NDIM(imr) == 1)
ptrr = imgs1r (imr, ncolr, ncolr)
else
ptrr = imgs2r (imr, ncolr, ncolr, 1, rnlines)
if (IM_NDIM(im) == 1)
ptri = imgs1r (im, ncolr + xshift, ncolr + xshift)
else
ptri = imgs2r (im, ncolr + xshift, ncolr + xshift, 1, inlines)
call alimr (Memr[ptrr], rnlines, ymin, ymax)
call alimr (Memr[ptri], inlines, tymin, tymax)
ymin = min (ymin, tymin)
ymax = max (ymax, tymax)
# Construct the title.
call sprintf (Memc[title], SZ_LINE, "Refimage: %s Image: %s\n")
call pargstr (IM_HDRFILE(imr))
call pargstr (IM_HDRFILE(im))
call sprintf (Memc[title+strlen(Memc[title])], SZ_LINE,
"Refcol (solid): %d Imcol (dashed): %d Xlag: %d Ylag: %d")
call pargi (ncolr)
call pargi (ncolr + xshift)
call pargi (xshift)
call pargi (yshift)
# Set up the labels and the axes.
call gclear (gd)
call gswind (gd, 1.0, real (rnlines), ymin, ymax)
call glabax (gd, Memc[title], "Line Number", "Counts")
# Plot the profile.
call gseti (gd, G_PLTYPE, GL_SOLID)
call gpline (gd, Memr[xr], Memr[ptrr], rnlines)
call gseti (gd, G_PLTYPE, GL_DASHED)
call gpline (gd, Memr[xi], Memr[ptri], rnlines)
call gflush (gd)
call sfree (sp)
end
# RG_XCPLINE -- Plot a line of the 2D correlation function.
procedure rg_xcpline (gd, title, data, nx, ny, nline)
pointer gd #I pointer to the graphics stream
char title[ARB] #I title for the plot
real data[nx,ARB] #I the input data array
int nx, ny #I dimensions of the input data array
int nline #I the line number
int i
pointer sp, str, x
real ymin, ymax
begin
# Return if no graphics stream.
if (gd == NULL)
return
# Check for valid line number.
if (nline < 1 || nline > ny)
return
# Allocate some working space.
call smark (sp)
call salloc (str, SZ_LINE, TY_CHAR)
call salloc (x, nx, TY_REAL)
# Initialize the data.
do i = 1, nx
Memr[x+i-1] = i
call alimr (data[1,nline], nx, ymin, ymax)
# Set up the labels and the axes.
call gclear (gd)
call gswind (gd, 1.0, real (nx), ymin, ymax)
call glabax (gd, title, "X Lag", "X-Correlation Function")
# Plot the line profile.
call gseti (gd, G_PLTYPE, GL_SOLID)
call gpline (gd, Memr[x], data[1,nline], nx)
call gflush (gd)
call sfree (sp)
end
# RG_XCPCOL -- Plot a column of the cross-correlation function.
procedure rg_xcpcol (gd, title, data, nx, ny, ncol)
pointer gd #I pointer to the graphics stream
char title[ARB] #I title of the column plot
real data[nx,ARB] #I the input data array
int nx, ny #I the dimensions of the input data array
int ncol #I line number
int i
pointer sp, x, y
real ymin, ymax
begin
# Return if no graphics stream.
if (gd == NULL)
return
# Check for valid column number.
if (ncol < 1 || ncol > nx)
return
# Initialize.
call smark (sp)
call salloc (x, ny, TY_REAL)
call salloc (y, ny, TY_REAL)
# Get the data to be plotted.
do i = 1, ny {
Memr[x+i-1] = i
Memr[y+i-1] = data[ncol,i]
}
call alimr (Memr[y], ny, ymin, ymax)
# Set up the labels and the axes.
call gclear (gd)
call gswind (gd, 1.0, real (ny), ymin, ymax)
call glabax (gd, title, "Y Lag", "X-Correlation Function")
# Plot the profile.
call gseti (gd, G_PLTYPE, GL_SOLID)
call gpline (gd, Memr[x], Memr[y], ny)
call gflush (gd)
call sfree (sp)
end
# RG_XMKPEAK -- Procedure to mark the peak from a correlation function
# contour plot.
procedure rg_xmkpeak (gd, xwindow, ywindow, xshift, yshift)
pointer gd #I pointer to the graphics stream
int xwindow #I x dimension of correlation function
int ywindow #I y dimension of correlation function
real xshift #O x shift
real yshift #O y shift
int wcs, key
pointer sp, cmd
real wx, wy
int clgcur()
begin
if (gd == NULL)
return
call smark (sp)
call salloc (cmd, SZ_LINE, TY_CHAR)
call printf ("Mark peak of the cross correlation function\n")
if (clgcur ("gcommands", wx, wy, wcs, key, Memc[cmd], SZ_LINE) == EOF)
;
if (wx < 1.0 || wx > real (xwindow) || wy < 1.0 || wy >
real (ywindow)) {
xshift = 0.0
yshift = 0.0
} else {
xshift = wx - (1 + xwindow) / 2
yshift = wy - (1 + ywindow) / 2
}
call sfree (sp)
end
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