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# File rvsao/Util/plotspec.x
# February 3, 2016
# By Jessica Mink, Harvard-Smithsonian Center for Astrophysics
# After Gerard Kriss, Johns Hopkins University
# Copyright(c) 1991-2016 Smithsonian Astrophysical Observatory
# You may do anything you like with this file except remove this copyright.
# The Smithsonian Astrophysical Observatory makes no representations about
# the suitability of this software for any purpose. It is provided "as is"
# without express or implied warranty.
# PLOTSPEC uses IRAF plot routines to plot a spectrum on STDGRAPH.
# FIXIT edits a spectrum by interpolating between marked points.
# Adapted from splot in the IRAF onedspec package
include <gset.h>
include <pkg/gtools.h>
include "../lib/rvsao.h"
procedure plotspec (npoints, pix, gtitle, xvec, xlabel, ismooth0)
int npoints # Number of points in spectrum
real pix[ARB] # Unsmoothed vector of points to plot
char gtitle[ARB] # Title for the plot
real xvec[ARB] # X coordinates for plotted vector
char xlabel[ARB] # Label for x axis
int ismooth0 # Number of times to smooth data
# (if <0, don't wait for cursor response)
int ipix1 # first pixel to plot
int ipix2 # last pixel to plot
int npix # number of points to plot
char command[SZ_FNAME]
int wc, key, itemp, ip, ix
bool newgraph, dfirst, zfirst, heading, reversed
int i, d1, d2, ipx1, ipx2, iwidth, i1, i2, ix0, ismooth
real wx, wy, xmax, wx0
pointer gt, gfd, gfp, sp
pointer smpix # Smoothed vector of points to plot
char device[SZ_FNAME] # Display on which to plot data
char plotter[SZ_FNAME] # Device on which to make hard copies
char linebuf[SZ_LINE] # Line buffer for input
int gt_gcur(), clgeti(), ctoi(), getline()
pointer gopen(), gt_init()
include "../lib/rvsao.com"
begin
heading = TRUE
# Open display and eliminate y-axis minor ticks.
call clgstr("device", device, SZ_FNAME)
gfd = gopen (device, NEW_FILE, STDGRAPH)
If (gfd == ERR) {
call printf ("PLOTSPEC: cannot open display %s\n")
call pargstr (device)
return
}
call gseti (gfd, G_YNMINOR, NO)
call gseti (gfd, G_XNMINOR, YES)
call gsetr (gfd, G_TICKLABELSIZE, 0.8)
# Initialize graph format
gt = gt_init()
call loghead (taskname,linebuf)
call gt_seti (gt, GTSYSID, NO)
call gt_sets (gt, GTTITLE, linebuf)
call gt_sets (gt, GTSUBTITLE, gtitle)
call gt_sets (gt, GTXLABEL, xlabel)
# Set up vector to hold smoothed data to be plotted
if (ismooth0 < 0)
ismooth = -(ismooth0 + 1)
else
ismooth = ismooth0
call smark (sp)
call salloc (smpix, npoints, TY_REAL)
call amovr (pix,Memr[smpix],npoints)
call smooth (Memr[smpix],npoints,ismooth)
# Initial plot of data array
ipix1 = 1
ipix2 = npoints
npix = npoints
call replot (gfd, gt, npix, Memr[smpix+ipix1-1], xvec[ipix1])
call gflush (gfd)
# Return without interaction
if (ismooth0 < 0) {
call gclose (gfd)
call gt_free (gt)
call sfree (sp)
return
}
newgraph = FALSE
dfirst = true
zfirst = true
if (xvec[ipix1] > xvec[ipix2])
reversed = TRUE
else
reversed = FALSE
# Handle cursor interaction
while (gt_gcur ("cursor", wx, wy, wc, key, command, SZ_FNAME) != EOF) {
# Find closest pixel within wavelength limits
if (reversed) {
if (wx >= xvec[ipix1])
ix = ipix1
else if (wx <= xvec[ipix2])
ix = ipix2
else {
i1 = ipix1
i2 = ipix2 - 1
do i = i1, i2 {
if (wx < xvec[i] && wx >= xvec[i+1]) {
if (wx - xvec[i+1] > 0.5)
ix = i + 1
else
ix = i
break
}
}
}
}
else {
if (wx <= xvec[ipix1])
ix = ipix1
else if (wx >= xvec[ipix2])
ix = ipix2
else {
i1 = ipix1
i2 = ipix2 - 1
do i = i1, i2 {
if (wx >= xvec[i] && wx < xvec[i+1]) {
if (wx - xvec[i] > 0.5)
ix = i
else
ix = i + 1
break
}
}
}
}
switch (key) {
case 'r':
newgraph = TRUE
# Make a hardcopy of the current display
case '@':
call gflush (gfd)
call gclose (gfd)
call clgstr("plotter", plotter, SZ_FNAME)
call printf ("Making hard copy on %s\n")
call pargstr (plotter)
call flush (STDOUT)
gfp = ERR
gfp = gopen (plotter, APPEND, STDPLOT)
If (gfp == ERR) {
call printf ("PLOTSPEC: cannot open plotter %s\n")
call pargstr (plotter)
next
}
call replot (gfp, gt, npix, Memr[smpix+ipix1-1], xvec[ipix1])
call gflush (gfp)
call gclose (gfp)
gfd = gopen (device, APPEND, STDGRAPH)
call gseti (gfd, G_YNMINOR, NO)
call gseti (gfd, G_XNMINOR, YES)
call gsetr (gfd, G_TICKLABELSIZE, 0.8)
# Toggle presence of heading
case 'h':
if (heading) {
call gt_sets (gt, GTTITLE, "")
call gt_sets (gt, GTSUBTITLE, "")
heading = FALSE
}
else {
call gt_sets (gt, GTTITLE, linebuf)
call gt_sets (gt, GTSUBTITLE, gtitle)
heading = TRUE
}
newgraph = TRUE
# Print wavelength coordinate at cursor
case 'w':
call gclose (gfd)
call printf ("Wavelength %8.2f, Pixel %d: %8.2f\n")
call pargr (wx)
call pargi (ix)
call pargr (wy)
call flush (STDOUT)
gfd = gopen (device, APPEND, STDGRAPH)
# Set number of times to smooth spectrum
case 'g':
call gclose (gfd)
call printf("Number of times to smooth spectrum (%d): ")
call pargi (ismooth)
call flush (STDOUT)
i = getline (STDIN,linebuf)
if (i > 1) {
ip = 1
i = ctoi (linebuf,ip,itemp)
ismooth = itemp
call printf("Smoothing spectrum %d times\n")
call pargi (ismooth)
call flush (STDOUT)
call amovr (pix,Memr[smpix],npoints)
call smooth (Memr[smpix],npoints,ismooth)
newgraph = TRUE
}
gfd = gopen (device, APPEND, STDGRAPH)
# Replace one pixel of spectrum
case ',':
ipx1 = ix
call gclose (gfd)
call printf("replacing pixel %.0f with %f\n")
call pargi (ipx1)
call pargr (wy)
# call fillpt (npoints, spectrum, ipx1, wy, debug)
call fillpt (npoints, pix, ipx1, wy, debug)
call flush (STDOUT)
gfd = gopen (device, APPEND, STDGRAPH)
edited = TRUE
newgraph = TRUE
# Delete portion of data
case 'd':
if (dfirst) {
d1 = ix
call gclose (gfd)
call printf("d again to delete data from pixel %d\n")
call pargi (d1)
call flush (STDOUT)
gfd = gopen (device, APPEND, STDGRAPH)
dfirst = false
}
else {
dfirst = true
d2 = ix
call gclose (gfd)
call printf("filling from pixel %d to pixel %d\n")
call pargi (d1)
call pargi (d2)
call flush (STDOUT)
gfd = gopen (device, APPEND, STDGRAPH)
call fillpix (npoints, pix, d1, d2)
call amovr (pix,Memr[smpix],npoints)
call smooth (Memr[smpix],npoints,ismooth)
newgraph = TRUE
edited = TRUE
}
# Reinitialize two-keystroke commands
case 'x':
if (!zfirst) {
call gclose (gfd)
call printf("zoom cancelled\n")
call flush (STDOUT)
gfd = gopen (device, APPEND, STDGRAPH)
zfirst = true
}
if (!dfirst) {
call gclose (gfd)
call printf("delete cancelled\n")
call flush (STDOUT)
gfd = gopen (device, APPEND, STDGRAPH)
dfirst = true
}
# Zoom in on section of graph
case 'z':
if (zfirst) {
ipx1 = ix
zfirst = false
call gclose (gfd)
call printf("z again to zoom from %5.0f\n")
call pargr (xvec[ipix1])
call flush (STDOUT)
}
else {
ipx2 = ix
zfirst = true
if (ipx2 < ipx1) {
ipix2 = ipx1
ipix1 = ipx2
}
else {
ipix1 = ipx1
ipix2 = ipx2
}
npix = ipix2 - ipix1 + 1
call gclose (gfd)
call printf("zooming from %.0f to %.0f (pix %d - %d)\n")
if (xvec[ipix1] > xvec[ipix2]) {
call pargr (xvec[ipix2])
call pargr (xvec[ipix1])
}
else {
call pargr (xvec[ipix1])
call pargr (xvec[ipix2])
}
call pargi (ipix1)
call pargi (ipix2)
call flush (STDOUT)
newgraph = TRUE
}
gfd = gopen (device, APPEND, STDGRAPH)
# Unzoom
case 'u':
ipix1 = 1
ipix2 = npoints
npix = npoints
call gclose (gfd)
call printf("unzooming back to %.0f to %.0f (pix %d - %d)\n")
if (xvec[ipix1] > xvec[ipix2]) {
call pargr (xvec[ipix2])
call pargr (xvec[ipix1])
}
else {
call pargr (xvec[ipix1])
call pargr (xvec[ipix2])
}
call pargi (ipix1)
call pargi (ipix2)
call flush (STDOUT)
newgraph = TRUE
gfd = gopen (device, APPEND, STDGRAPH)
# Print menu
case '?',' ':
call gclose (gfd)
call printf ("@ make hard copy of screen\n")
call printf ("c show x and y coordinates\n")
call printf ("d delete data between 1st and 2nd positions\n")
call printf ("g smooth plotted data\n")
call printf ("h toggle headings\n")
call printf ("p select correlation peak\n")
call printf ("q leave plot\n")
call printf ("r replot current graph\n")
call printf ("s reset peak search half-width\n")
call printf ("u unzoom\n")
call printf ("x cancel zoom or delete after 1st char\n")
call printf ("z zoom between 1st and 2nd positions\n")
call printf (", replace single pixel with value at cursor\n")
call printf ("> overwrite spectrum with edited one\n")
call printf ("? this menu (space works, too)\n")
call flush (STDOUT)
gfd = gopen (device, APPEND, STDGRAPH)
# Set peak search width
case 'S','s':
call gclose (gfd)
iwidth = clgeti ("pksrch")
call printf ("Half-width in pixels for peak search (%d) = \n")
call pargi (iwidth)
call flush (STDOUT)
i = getline (STDIN,linebuf)
if (i > 0) {
ip = 1
i = ctoi (linebuf,ip,iwidth)
call clputi ("pksrch",iwidth)
}
gfd = gopen (device, APPEND, STDGRAPH)
# Set estimate of cross-correlation peak to the cursor value
case 'P','p':
call gclose (gfd)
ix0 = ix
wx0 = wx
iwidth = 25
iwidth = clgeti ("pksrch")
i1 = ix - iwidth + 1
if (i1 < 1)
i1 = 1
i2 = ix + iwidth
if (i2 > ipix2)
i2 = ipix2
xmax = pix[ix]
for (i = i1; i <= i2; i = i + 1) {
if (pix[i] >= xmax) {
xmax = pix[i]
ix = i
}
}
z[1] = ix
wx = xvec[ix]
call printf ("Max peak at %d = %8.2f (%d = %8.2f)\n")
call pargi (ix)
call pargr (wx)
call pargi (ix0)
call pargr (wx0)
call flush (STDOUT)
gfd = gopen (device, APPEND, STDGRAPH)
case 'Q','q':
break
# Default is to print coordinates of cursor
default:
call gclose (gfd)
call printf ("x,y: %10.3f %10.4g\n")
call pargr (wx)
call pargr (wy)
call flush (STDOUT)
gfd = gopen (device, APPEND, STDGRAPH)
}
# Replot graph if necessary
if (newgraph) {
call replot (gfd, gt, npix, Memr[smpix+ipix1-1], xvec[ipix1])
call gflush (gfd)
newgraph = FALSE
}
}
# Close graph window
call gclose (gfd)
call gt_free (gt)
call sfree (sp)
return
end
# June 1987 Gerard Kriss
# Feb 1991 Doug Mink Clean up code
# May 1991 Doug Mink Add zoom and hard-copy
# Sept 1991 Doug Mink Separate plot devices
# Dec 18 1991 Plot using wavelength vector instead of end-points
# Dec 19 1991 Add graphics pointer argument to gflush calls
# May 28 1992 Search for maximum near peak set with 'p'
# Feb 3 1994 Add s to change width of peak search
# Mar 17 1994 Add n to smooth spectrum
# Apr 8 1994 Fix n smoothing
# Apr 11 1994 Clean up pointers before returning
# Apr 19 1994 Fix bug freeing smoothed spectrum
# Apr 20 1994 Change GETLINE from subroutine to function
# Apr 26 1994 Fix smoothed spectrum with d command, too
# May 3 1994 Add smoothed vector argument to PLOTSPEC argument list
# May 9 1994 Move smoothed vector out of argument list
# May 9 1994 Add number of times to smooth spectrum to argument list
# Aug 3 1994 Change common and header from fquot to rvsao
# Aug 10 1994 Replace system ID with task name and system ID
# Jan 30 1997 Rename FIXIT to FILLPIX and move to file fill.x
# Feb 4 1997 Use NSMOOTH0 instead of NSMOOTH which is now in rvsao.com
# Feb 4 1997 Add option to plot without interacting
# Apr 21 1997 Flush but do not clear graphics buffer after plotting data
# Dec 11 1997 Add option to drop headings and smooth data
# Jan 12 1998 Match menu to actual commands
# Mar 28 2001 Handle right-to-left spectra as well as left-to-right ones
# Feb 03 2015 Add option to replace single pixel values
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