1 files changed, 27 insertions, 0 deletions
diff --git a/sys/gio/gplreset.x b/sys/gio/gplreset.x
new file mode 100644
index 00000000..888fd99e
--- /dev/null
+++ b/sys/gio/gplreset.x
@@ -0,0 +1,27 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<gio.h>
+
+# GPL_RESET -- Reset the state of the GPL common, forcing a call to
+# re-initialize the cache in the next GADRAW call.  Should be called at
+# GOPEN time and thereafter whenever the a WCS is modified or an polyline,
+# polymarker, etc. attribute is set.
+
+procedure gpl_reset()
+
+bool	first_time
+include	"gpl.com"
+data	first_time /true/
+
+begin
+	if (first_time) {
+	    op = 1
+	    first_time = false
+	} else
+	    call gpl_flush()
+
+	wcs = -1
+	gp_out = NULL
+	pl_type = POLYLINE
+	last_point_inbounds = false
+end