1 files changed, 28 insertions, 0 deletions
diff --git a/sys/mwcs/mwssys.x b/sys/mwcs/mwssys.x
new file mode 100644
index 00000000..ec1558eb
--- /dev/null
+++ b/sys/mwcs/mwssys.x
@@ -0,0 +1,28 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<syserr.h>
+include	"mwcs.h"
+
+# MW_SSYSTEM -- Make the named world coordinate system the default.
+
+procedure mw_ssystem (mw, system)
+
+pointer	mw			#I pointer to MWCS descriptor
+char	system[ARB]		#I system name
+
+pointer	wp
+bool	streq()
+pointer	mw_findsys()
+errchk	mw_findsys
+
+begin
+	if (streq (system, "world"))
+	    call mw_sdefwcs (mw)		# set default world system
+	else {
+	    wp = mw_findsys (mw, system)
+	    if (wp != NULL)
+		MI_WCS(mw) = wp
+	    else
+		call syserrs (SYS_MWWCSNF, system)
+	}
+end