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include <imset.h>
include <plset.h>
define RG_REGIONS "|circle|ellipse|box|rectangle|polygon|vector|columns|\
lines|pie|cannulus|eannulus|rannulus|pannulus|point|"
define RG_CIRCLE 1
define RG_ELLIPSE 2
define RG_BOX 3
define RG_RECTANGLE 4
define RG_POLYGON 5
define RG_VECTOR 6
define RG_COLUMNS 7
define RG_LINES 8
define RG_PIE 9
define RG_CANNULUS 10
define RG_EANNULUS 11
define RG_RANNULUS 12
define RG_PANNULUS 13
define RG_POINT 14
define MAX_NVERTICES 100
# RG_SETREG -- Set the pixel mask region to the appropriate number.
procedure me_setreg (region, pmim, pregno, pregval, verbose)
char region[ARB] #I the region description
pointer pmim #I the pixelmask image descriptor
int pregno #I the current region number
int pregval #I the current region value
bool verbose #I print status messages ?
real xc, yc, a, b, ratio, theta
real x1, y1, x2, y2, width
pointer sp, function, ufunction, pl, xver, yver, rangestr
int nfuncs, nver, nold
int strdic(), imstati(), nscan()
begin
# Allocate working space.
call smark (sp)
call salloc (function, SZ_FNAME, TY_CHAR)
call salloc (ufunction, SZ_FNAME, TY_CHAR)
call salloc (xver, MAX_NVERTICES, TY_REAL)
call salloc (yver, MAX_NVERTICES, TY_REAL)
call salloc (rangestr, SZ_FNAME, TY_CHAR)
# Determine the type of region.
call sscan (region)
call gargwrd (Memc[function], SZ_FNAME)
nfuncs = strdic (Memc[function], Memc[ufunction], SZ_FNAME, RG_REGIONS)
if (nfuncs <= 0) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
call sfree (sp)
return
}
pl = imstati (pmim, IM_PLDES)
switch (nfuncs) {
case RG_CIRCLE:
call gargr (xc)
call gargr (yc)
call gargr (a)
if (nscan() < 4) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_circle (pl, xc, yc, a, PIX_SRC+PIX_VALUE(pregval))
}
case RG_ELLIPSE:
call gargr (xc)
call gargr (yc)
call gargr (a)
call gargr (ratio)
call gargr (theta)
if (nscan() < 6) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_ellipse (pl, xc, yc, a, ratio, theta,
PIX_SRC + PIX_VALUE(pregval))
}
case RG_BOX:
call gargr (x1)
call gargr (y1)
call gargr (x2)
call gargr (y2)
if (nscan() < 5) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_box (pl, x1, y1, x2, y2, PIX_SRC + PIX_VALUE(pregval))
}
case RG_RECTANGLE:
call gargr (xc)
call gargr (yc)
call gargr (a)
call gargr (ratio)
call gargr (theta)
if (nscan() < 6) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_rectangle (pl, xc, yc, a, ratio, theta,
PIX_SRC + PIX_VALUE(pregval))
}
case RG_POLYGON:
nver = 0
repeat {
nold = nscan()
call gargr (Memr[xver+nver])
call gargr (Memr[yver+nver])
if ((nscan() - nold) == 2)
nver = nver + 1
else
break
} until ((nscan() - nold) < 2)
if (nver <3 ) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_polygon (pl, Memr[xver], Memr[yver], nver,
PIX_SRC + PIX_VALUE(pregval))
}
case RG_VECTOR:
call gargr (x1)
call gargr (y1)
call gargr (x2)
call gargr (y2)
call gargr (width)
if (nscan() < 6) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_vector (pl, x1, y1, x2, y2, width,
PIX_SRC + PIX_VALUE(pregval))
}
case RG_COLUMNS:
call gargwrd (Memc[rangestr], SZ_FNAME)
if (nscan() < 2) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_cols (pl, Memc[rangestr],
PIX_SRC + PIX_VALUE(pregval))
}
case RG_LINES:
call gargwrd (Memc[rangestr], SZ_FNAME)
if (nscan() < 2) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_lines (pl, Memc[rangestr],
PIX_SRC + PIX_VALUE(pregval))
}
case RG_PIE:
call gargr (xc)
call gargr (yc)
call gargr (a)
call gargr (b)
if (nscan() < 5) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_pie (pl, xc, yc, a, b, PIX_SRC + PIX_VALUE(pregval))
}
case RG_CANNULUS:
call gargr (xc)
call gargr (yc)
call gargr (a)
call gargr (b)
if (nscan() < 5) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_cannulus (pl, xc, yc, a, b,
PIX_SRC + PIX_VALUE(pregval))
}
case RG_EANNULUS:
call gargr (xc)
call gargr (yc)
call gargr (a)
call gargr (b)
call gargr (ratio)
call gargr (theta)
if (nscan() < 7) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_eannulus (pl, xc, yc, a, b, ratio, theta,
PIX_SRC + PIX_VALUE(pregval))
}
case RG_RANNULUS:
call gargr (xc)
call gargr (yc)
call gargr (a)
call gargr (b)
call gargr (ratio)
call gargr (theta)
if (nscan() < 7) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_rannulus (pl, xc, yc, a, b, ratio, theta,
PIX_SRC + PIX_VALUE(pregval))
}
case RG_PANNULUS:
call gargr (b)
if (nscan () < 2) {
nver = 0
} else {
nver = 0
repeat {
nold = nscan()
call gargr (Memr[xver+nver])
call gargr (Memr[yver+nver])
if ((nscan() - nold) == 2)
nver = nver + 1
else
break
} until ((nscan() - nold) < 2)
}
if (nver < 3) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_apolygon (pl, b, Memr[xver], Memr[yver], nver,
PIX_SRC + PIX_VALUE(pregval))
}
case RG_POINT:
call gargr (xc)
call gargr (yc)
if (nscan() < 3) {
if (verbose) {
call printf (" Region %d cannot be decoded\n")
call pargi (pregno)
}
} else {
call pe_point (pl, xc, yc, PIX_SRC+PIX_VALUE(pregval))
}
default:
;
}
call sfree (sp)
end
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