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include <error.h>
include <imhdr.h>
include <imio.h>
include <math/gsurfit.h>
# Data structure.
define MGS_SZNAME 99 # Length of mgs name string
define MGS_LEN 56 # Length of structure
define MGS_GS Memi[$1] # GSURFIT pointer
define MGS_X Memi[$1+1] # Pointer to line of x values
define MGS_Y Memi[$1+2] # Pointer to line of y values
define MGS_Z Memi[$1+3] # Pointer to line of z values
define MGS_NC Memi[$1+4] # Number of columns
define MGS_REFIM Memi[$1+5] # Reference image pointer
define MGS_NAME Memc[P2C($1+6)] # Map name
# MGS_GLR -- Get a line of data.
pointer procedure mgs_glr (mgs, line)
pointer mgs #I Map pointer
int line #I Line
int nc
pointer x, y, z, gs
begin
if (mgs == NULL)
call error (1, "Map is undefined")
gs = MGS_GS(mgs)
x = MGS_X(mgs)
y = MGS_Y(mgs)
z = MGS_Z(mgs)
nc = MGS_NC(mgs)
call amovkr (real(line), Memr[y], nc)
call gsvector (gs, Memr[x], Memr[y], Memr[z], nc)
return (z)
end
# MGS_OPEN -- Open mgs.
pointer procedure mgs_open (name, refim, gsin)
char name[ARB] #I Name
pointer refim #I Reference image
pointer gsin #I GSURFIT pointer
pointer mgs #O Map pointer returned
int i, nc, nl
real gsgetr()
pointer gs
errchk mgs_ggs
begin
nc = IM_LEN(refim,1)
nl = IM_LEN(refim,2)
call calloc (mgs, MGS_LEN, TY_STRUCT)
MGS_REFIM(mgs) = refim
call strcpy (name, MGS_NAME(mgs), MGS_SZNAME)
MGS_NC(mgs) = nc
iferr {
gs = gsin
if (gs == NULL) {
call mgs_ggs (refim, name, gs)
MGS_GS(mgs) = gs
}
if (1 < gsgetr (gs, GSXMIN) || nc > gsgetr (gs, GSXMAX) ||
1 < gsgetr (gs, GSYMIN) || nl > gsgetr (gs, GSYMAX))
call error (2, "Map and data images have different sizes")
MGS_GS(mgs) = gs
call malloc (MGS_X(mgs), nc, TY_REAL)
call malloc (MGS_Y(mgs), nc, TY_REAL)
call malloc (MGS_Z(mgs), nc, TY_REAL)
do i = 1, nc
Memr[MGS_X(mgs)+i-1] = i
} then {
call mgs_close (mgs)
call erract (EA_ERROR)
}
return (mgs)
end
# MGS_CLOSE -- Close mgs.
procedure mgs_close (mgs)
pointer mgs #I Map pointer
begin
if (mgs == NULL)
return
if (MGS_GS(mgs) != NULL)
call gsfree (MGS_GS(mgs))
call mfree (MGS_X(mgs), TY_REAL)
call mfree (MGS_Y(mgs), TY_REAL)
call mfree (MGS_Z(mgs), TY_REAL)
call mfree (mgs, TY_STRUCT)
end
# MGS_GETS -- Get string parameter.
procedure mgs_gets (mgs, param, val, maxchar)
pointer mgs #I Map pointer
char param[ARB] #I Parameter
char val[ARB] #O Parameter string value
int maxchar #I Maximum number of characters to return
begin
call error (1, "mgs_gets: unknown parameter")
end
# MGS_SETS -- Set string parameter.
procedure mgs_sets (mgs, param, val)
pointer mgs #I Map pointer
char param[ARB] #I Parameter
char val[ARB] #O Parameter string value
begin
call error (1, "mgs_sets: unknown parameter")
end
# MGS_GETI -- Get integer parameter.
procedure mgs_geti (mgs, param, val)
pointer mgs #I Map pointer
char param[ARB] #I Parameter
int val #O Value
bool streq()
begin
if (streq (param, "gsurfit"))
val = MGS_GS(mgs)
else
call error (1, "mgs_geti: unknown parameter")
end
# MGS_SETI -- Set integer parameter.
procedure mgs_seti (mgs, param, val)
pointer mgs #I Map pointer
char param[ARB] #I Parameter
int val #I Value
bool streq()
begin
if (streq (param, "gsurfit")) {
call mgs_pgs (MGS_REFIM(mgs), MGS_NAME(mgs), val)
call gsfree (MGS_GS(mgs))
MGS_GS(mgs) = val
} else
call error (1, "mgs_seti: unknown parameter")
end
# MGS_GETR -- Get real parameter.
procedure mgs_getr (mgs, param, val)
pointer mgs #I Map pointer
char param[ARB] #I Parameter
real val #O Value
begin
call error (1, "mgs_getr: unknown parameter")
end
# MGS_SETR -- Set real parameter.
procedure mgs_setr (mgs, param, val)
pointer mgs #I Map pointer
char param[ARB] #I Parameter
real val #I Value
begin
call error (1, "mgs_setr: unknown parameter")
end
# MAP_PGS -- Put mgs surface fit.
procedure mgs_pgs (im, key, gs)
pointer im #I Image pointer
char key[ARB] #I Keyword root
pointer gs #I Surface fit pointer
int i, nc, fd, gsgeti(), stropen()
pointer sp, kw, card, coeffs, strbuf, cp, cp1, cp2
begin
if (IM_SECTUSED(im) == YES)
return
call smark (sp)
call salloc (kw, 80, TY_CHAR)
call salloc (card, 68, TY_CHAR)
nc = gsgeti (gs, GSNSAVE)
call salloc (coeffs, nc, TY_REAL)
call gssave (gs, Memr[coeffs])
# Convert coeffs to a string. Last character will be space.
call salloc (strbuf, 20*nc, TY_CHAR)
call aclrc (Memc[strbuf], 20*nc)
fd = stropen (Memc[strbuf], 20*nc, WRITE_ONLY)
do i = 1, nc {
call fprintf (fd, "%g ")
call pargr (Memr[coeffs+i-1])
}
call close (fd)
i = 1
cp1 = strbuf
for (cp=cp1; Memc[cp] != EOS; cp=cp+1) {
if (Memc[cp] == ' ')
cp2 = cp
if (cp - cp1 + 1 == 68) {
call sprintf (Memc[kw], 8, "%.6s%02d")
call pargstr (key)
call pargi (i)
i = i + 1
Memc[cp2] = EOS
call imastr (im, Memc[kw], Memc[cp1])
cp1 = cp2 + 1
cp = cp1
}
}
if (cp - cp1 + 1 > 0) {
call sprintf (Memc[kw], 8, "%.6s%02d")
call pargstr (key)
call pargi (i)
i = i + 1
Memc[cp2] = EOS
call imastr (im, Memc[kw], Memc[cp1])
}
repeat {
call sprintf (Memc[kw], 8, "%.6s%02d")
call pargstr (key)
call pargi (i)
i = i + 1
iferr (call imdelf (im, Memc[kw]))
break
}
call sfree (sp)
end
# MAP_GGS -- Get mgs surface fit.
procedure mgs_ggs (im, key, gs)
pointer im #I Image pointer
char key[ARB] #I Keyword root
pointer gs #O Surface fit pointer
int i, j, nc, ctor()
pointer sp, kw, card, coeffs
begin
if (IM_SECTUSED(im) == YES)
call error (1, "No surface fit with an image section")
call smark (sp)
call salloc (kw, 8, TY_CHAR)
call salloc (card, 68, TY_CHAR)
call malloc (coeffs, 100, TY_REAL)
iferr {
nc = 0
do i = 1, ARB {
call sprintf (Memc[kw], 8, "%.6s%02d")
call pargstr (key)
call pargi (i)
iferr (call imgstr (im, Memc[kw], Memc[card], 68))
break
j = 1
while (ctor (Memc[card], j, Memr[coeffs+nc]) != 0) {
nc = nc + 1
if (mod (nc, 100) == 0)
call realloc (coeffs, nc+100, TY_REAL)
}
}
if (nc == 0)
call error (1, "Surface fit not found")
call gsrestore (gs, Memr[coeffs])
call mfree (coeffs, TY_REAL)
} then {
call mfree (coeffs, TY_REAL)
call erract (EA_ERROR)
}
call sfree (sp)
end
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