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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <imhdr.h>
include <mwset.h>
include "imexam.h"
# IE_MWINIT -- Initialize MWCS
procedure ie_mwinit (ie)
pointer ie # IMEXAM descriptor
int i, j, wcsdim, mw_stati(), nowhite(), stridxs()
pointer im, mw, ctlw, ctwl, mw_openim(), mw_sctran()
pointer sp, axno, axval, str1, str2
bool streq()
errchk mw_openim, mw_sctran
begin
im = IE_IM(ie)
mw = IE_MW(ie)
if (mw != NULL) {
call mw_close (mw)
IE_MW(ie) = mw
}
IE_XLABEL(ie) = EOS
IE_YLABEL(ie) = EOS
call clgstr ("xformat", IE_XFORMAT(ie), IE_SZFORMAT)
call clgstr ("yformat", IE_YFORMAT(ie), IE_SZFORMAT)
i = nowhite (IE_XFORMAT(ie), IE_XFORMAT(ie), IE_SZFORMAT)
i = nowhite (IE_YFORMAT(ie), IE_YFORMAT(ie), IE_SZFORMAT)
if (im == NULL || im == IE_DS(ie))
return
call smark (sp)
call salloc (axno, IM_MAXDIM, TY_INT)
call salloc (axval, IM_MAXDIM, TY_INT)
call salloc (str1, SZ_LINE, TY_CHAR)
call salloc (str2, SZ_LINE, TY_CHAR)
mw = mw_openim (im)
call mw_seti (mw, MW_USEAXMAP, NO)
wcsdim = mw_stati (mw, MW_NDIM)
call mw_gaxmap (mw, Memi[axno], Memi[axval], wcsdim)
IE_P1(ie) = 1
IE_P2(ie) = 2
do i = 1, wcsdim {
j = Memi[axno+i-1]
if (j == 0)
IE_IN(ie,i) = 1
else if (j == 1)
IE_P1(ie) = i
else if (j == 2)
IE_P2(ie) = i
}
ctlw = mw_sctran (mw, "logical", IE_WCSNAME(ie), 0)
ctwl = mw_sctran (mw, IE_WCSNAME(ie), "logical", 0)
# Set coordinate labels and formats
i = IE_P1(ie)
j = IE_P2(ie)
if (streq (IE_WCSNAME(ie), "logical")) {
call strcpy ("Column (pixels)", IE_XLABEL(ie), IE_SZFNAME)
call strcpy ("Line (pixels)", IE_YLABEL(ie), IE_SZFNAME)
} else if (streq (IE_WCSNAME(ie), "physical")) {
if (i == 1)
call strcpy ("Column (pixels)", IE_XLABEL(ie), IE_SZFNAME)
else if (i == 2)
call strcpy ("Line (pixels)", IE_XLABEL(ie), IE_SZFNAME)
else
call strcpy ("Pixels", IE_XLABEL(ie), IE_SZFNAME)
if (j == 1)
call strcpy ("Column (pixels)", IE_YLABEL(ie), IE_SZFNAME)
else if (j == 2)
call strcpy ("Line (pixels)", IE_YLABEL(ie), IE_SZFNAME)
else
call strcpy ("Pixels", IE_YLABEL(ie), IE_SZFNAME)
} else {
ifnoerr (call mw_gwattrs (mw, i, "label", Memc[str1], SZ_LINE)) {
ifnoerr (call mw_gwattrs (mw, i, "units", Memc[str2],SZ_LINE)) {
call sprintf (IE_XLABEL(ie), IE_SZFNAME, "%s (%s)")
call pargstr (Memc[str1])
call pargstr (Memc[str2])
} else {
call sprintf (IE_XLABEL(ie), IE_SZFNAME, "%s")
call pargstr (Memc[str1])
}
}
if (IE_XFORMAT(ie) != '%')
ifnoerr (call mw_gwattrs (mw, i, "format", Memc[str1], SZ_LINE))
call strcpy (Memc[str1], IE_XFORMAT(ie), IE_SZFORMAT)
ifnoerr (call mw_gwattrs (mw, j, "label", Memc[str1], SZ_LINE)) {
ifnoerr (call mw_gwattrs (mw, j, "units", Memc[str2],SZ_LINE)) {
call sprintf (IE_YLABEL(ie), IE_SZFNAME, "%s (%s)")
call pargstr (Memc[str1])
call pargstr (Memc[str2])
} else {
call sprintf (IE_YLABEL(ie), IE_SZFNAME, "%s")
call pargstr (Memc[str1])
}
}
if (IE_YFORMAT(ie) != '%')
ifnoerr (call mw_gwattrs (mw, j, "format", Memc[str1], SZ_LINE))
call strcpy (Memc[str1], IE_YFORMAT(ie), IE_SZFORMAT)
# Check for equitorial coordinate and reversed formats.
ifnoerr (call mw_gwattrs (mw, i, "axtype", Memc[str1], SZ_LINE))
if ((streq(Memc[str1],"ra")&&stridxs("hm",IE_XFORMAT(ie))>0) ||
(streq(Memc[str1],"dec")&&stridxs("HM",IE_XFORMAT(ie))>0)) {
call strcpy (IE_XFORMAT(ie), Memc[str1], IE_SZFORMAT)
call strcpy (IE_YFORMAT(ie), IE_XFORMAT(ie),IE_SZFORMAT)
call strcpy (Memc[str1], IE_YFORMAT(ie), IE_SZFORMAT)
}
}
IE_MW(ie) = mw
IE_CTLW(ie) = ctlw
IE_CTWL(ie) = ctwl
IE_WCSDIM(ie) = wcsdim
call sfree (sp)
end
# IE_MWCTRAN -- Evaluate MWCS coordinate
procedure ie_mwctran (ie, xin, yin, xout, yout)
pointer ie # IMEXAM descriptor
real xin, yin # Input coordinate
real xout, yout # Output coordinate
begin
if (IE_MW(ie) == NULL) {
xout = xin
yout = yin
return
}
IE_IN(ie,IE_P1(ie)) = xin
IE_IN(ie,IE_P2(ie)) = yin
call mw_ctranr (IE_CTLW(ie), IE_IN(ie,1), IE_OUT(ie,1), IE_WCSDIM(ie))
xout = IE_OUT(ie,IE_P1(ie))
yout = IE_OUT(ie,IE_P2(ie))
end
# IE_IMWCTRAN -- Evaluate inverse MWCS coordinate
procedure ie_imwctran (ie, xin, yin, xout, yout)
pointer ie # IMEXAM descriptor
real xin, yin # Input coordinate
real xout, yout # Output coordinate
begin
if (IE_MW(ie) == NULL) {
xout = xin
yout = yin
return
}
IE_OUT(ie,IE_P1(ie)) = xin
IE_OUT(ie,IE_P2(ie)) = yin
call mw_ctranr (IE_CTWL(ie), IE_OUT(ie,1), IE_IN(ie,1), IE_WCSDIM(ie))
xout = IE_IN(ie,IE_P1(ie))
yout = IE_IN(ie,IE_P2(ie))
end
# IE_IFORMATR -- Determine the inverse formatted real value
# This temporary routine is used to account for scaling of the H and M formats.
real procedure ie_iformatr (value, format)
real value # Value to be inverse formated
char format[ARB] # Format
int strldxs()
begin
if (!IS_INDEF(value) && strldxs ("HM", format) > 0)
return (value * 15.)
else
return (value)
end
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