From 96a88f968ac4277786ea95618cef860d60aa17fd Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Thu, 27 Oct 2005 11:11:02 +0000
Subject: [PATCH] Added error message to report when too many line segments are
 added to an IntersectVisitor.

---
 src/osgUtil/IntersectVisitor.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/osgUtil/IntersectVisitor.cpp b/src/osgUtil/IntersectVisitor.cpp
index 66ecebf58..5fdbc262d 100644
--- a/src/osgUtil/IntersectVisitor.cpp
+++ b/src/osgUtil/IntersectVisitor.cpp
@@ -219,9 +219,16 @@ void IntersectVisitor::addLineSegment(LineSegment* seg)
         notify(WARN)<<"         "<<seg->start()<<" "<<seg->end()<<" segment ignored.."<< std::endl;
         return;
     }
-
+    
     IntersectState* cis = _intersectStateStack.back().get();
     
+    if (cis->_segList.size()>=32)
+    {
+        notify(WARN)<<"Warning: excessive number of line segmenets passed to IntersectVisitor::addLineSegment(..), maximum permitted is 32 line segments."<<std::endl;
+        notify(WARN)<<"         "<<seg->start()<<" "<<seg->end()<<" segment ignored.."<< std::endl;
+        return;
+    }
+
     setEyePoint(seg->start()); // set start of line segment to be pseudo EyePoint for billboarding and LOD purposes
 
     // first check to see if segment has already been added.