1 files changed, 43 insertions, 0 deletions
diff --git a/vo/votools/gasplib/rdxy.x b/vo/votools/gasplib/rdxy.x
new file mode 100644
index 00000000..360f9cd0
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+++ b/vo/votools/gasplib/rdxy.x
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+include <mach.h>
+
+# RDXY -- procedure to get (x,y) pixel values from a line.
+#	  The line  can have any number of columns but only up to 162
+#	  characters per line.
+#	  
+procedure rdxy (line, icol, x, y)
+
+char line[SZ_LINE]	# input line with (x,y) in  it
+int  icol[2]		# X, Y column numbers within the line
+double	x		# X pixel value
+double	y		# Y pixel value
+
+pointer	sp, pp
+int	i, ip, ic, ctowrd(), ctod()
+int	maxcol, nchar
+
+begin
+
+	# find the right most column to read from buffer
+	maxcol = max (icol[1], icol[2])
+	
+	call smark (sp)
+	call salloc (pp, maxcol*MAX_DIGITS, TY_CHAR)
+
+	ip = 1
+	ic = pp
+	do i = 1, maxcol {
+	   nchar = ctowrd (line, ip, Memc[ic], MAX_DIGITS)
+	   # store word in equal length array
+	   call amovkc (" ", Memc[ic+nchar], MAX_DIGITS-nchar)
+	   Memc[ic+MAX_DIGITS] = EOS
+	   ic = ic + MAX_DIGITS+1
+	}
+
+	# get the output parameters
+
+	nchar = ctod (Memc[pp], (icol(1)-1)*(MAX_DIGITS+1)+1, x)
+	nchar = ctod (Memc[pp], (icol(2)-1)*(MAX_DIGITS+1)+1, y)
+
+	call sfree (sp)
+
+end