Repatch (from linux) of OSX IRAF

1 files changed, 39 insertions, 0 deletions

diff --git a/sys/gio/gks/gqchup.x b/sys/gio/gks/gqchup.x
new file mode 100644
index 00000000..3f12d8c4
--- /dev/null
+++ b/sys/gio/gks/gqchup.x
@@ -0,0 +1,39 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<gset.h>
+include	"gks.h"
+
+# GQCHUP -- Inquire character up vector.
+
+procedure gqchup (ierror, chupx, chupy)
+
+int	ierror			# Error code; ierror = 0 for no error 
+real	chupx, chupy		# Character up vector x and y components
+
+int	angle
+real	txup
+int	gstati()
+include	"gks.com"
+
+begin
+	if (gk_std == NULL) {
+	    # GKS not in proper state; no active workstations
+	    ierror = 7
+	    chupx = 0.0
+	    chupy = 0.0
+	    return
+	} else
+	    ierror = 0
+
+	iferr {
+	    angle = gstati (gp[gk_std], G_TXUP) 
+
+	    txup = real (angle) * 3.1415926 / 180.
+	    chupx = cos (txup)
+	    chupy = sin (txup)
+	} then {
+	    ierror = 1
+	    chupx = 0.0
+	    chupy = 0.0
+	}
+end