1 files changed, 25 insertions, 0 deletions
diff --git a/sys/gio/gsview.x b/sys/gio/gsview.x
new file mode 100644
index 00000000..7ed83b31
--- /dev/null
+++ b/sys/gio/gsview.x
@@ -0,0 +1,25 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<gio.h>
+
+# GSVIEW -- Set the viewport of the current WCS.
+
+procedure gsview (gp, x1, x2, y1, y2)
+
+pointer	gp			# graphics descriptor
+real	x1, x2			# range of NDC in X
+real	y1, y2			# range of NDC in Y
+pointer	w
+
+begin
+	w = GP_WCSPTR (gp, GP_WCS(gp))
+
+	WCS_SX1(w) = x1
+	WCS_SX2(w) = x2
+	WCS_SY1(w) = y1
+	WCS_SY2(w) = y2
+
+	WCS_FLAGS(w) = or (WCS_FLAGS(w), WF_DEFINED)
+	GP_WCSSTATE(gp) = MODIFIED
+	call gpl_reset()
+end