From edea206c533053ec8d8a0851685c87551d035da3 Mon Sep 17 00:00:00 2001
From: William Joye <wjoye@cfa.harvard.edu>
Date: Fri, 13 Jan 2017 14:05:10 -0500
Subject: [PATCH] fix problem with graphs and image zoomed out

---
 ds9/library/graph.tcl | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/ds9/library/graph.tcl b/ds9/library/graph.tcl
index 4e42610b7..ca507e909 100644
--- a/ds9/library/graph.tcl
+++ b/ds9/library/graph.tcl
@@ -261,13 +261,19 @@ proc UpdateGraph {which x y sys} {
 
     if {[$which has fits]} {
 	if {$view(graph,horz)} {
-	    $which get horizontal cut graphHorzX graphHorzY $x $y $sys
-	    $ds9(graph,horz) element configure line1 -hide no
+	    if {![catch {$which get horizontal cut graphHorzX graphHorzY $x $y $sys}]} {
+		$ds9(graph,horz) element configure line1 -hide no
+	    } else {
+		$ds9(graph,horz) element configure line1 -hide yes
+	    }
 	}
 
 	if {$view(graph,vert)} {
-	    $which get vertical cut graphVertX graphVertY $x $y $sys
-	    $ds9(graph,vert) element configure line1 -hide no
+	    if {![catch {$which get vertical cut graphVertX graphVertY $x $y $sys}]} {
+		$ds9(graph,vert) element configure line1 -hide no
+	    } else {
+		$ds9(graph,vert) element configure line1 -hide yes
+	    }
 	}
     }
 }